FEATURES:=jffs2 targz ubifs audio
SUBTARGETS:=qi_lb60 n516 n526 id800wt
-LINUX_VERSION:=2.6.37.6
+LINUX_VERSION:=3.2.1
DEVICE_TYPE=other
--- /dev/null
+# CONFIG_ARCH_DMA_ADDR_T_64BIT is not set
+# CONFIG_ARCH_HAS_ILOG2_U32 is not set
+# CONFIG_ARCH_HAS_ILOG2_U64 is not set
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+# CONFIG_ARCH_PHYS_ADDR_T_64BIT is not set
+CONFIG_ARCH_POPULATES_NODE_MAP=y
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+# CONFIG_ARCH_SUPPORTS_MSI is not set
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+# CONFIG_ARPD is not set
+# CONFIG_ATH79 is not set
+# CONFIG_ATMEL_PWM is not set
+# CONFIG_BATTERY_BQ20Z75 is not set
+CONFIG_BATTERY_JZ4740=y
+CONFIG_BCMA_POSSIBLE=y
+# CONFIG_BLK_DEV_INITRD is not set
+# CONFIG_BRIDGE is not set
+CONFIG_CHARGER_GPIO=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+CONFIG_CPU_HAS_PREFETCH=y
+CONFIG_CPU_HAS_SYNC=y
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_CPU_MIPS32=y
+CONFIG_CPU_MIPS32_R1=y
+CONFIG_CPU_MIPSR1=y
+CONFIG_CPU_SUPPORTS_32BIT_KERNEL=y
+CONFIG_CPU_SUPPORTS_CPUFREQ=y
+CONFIG_CPU_SUPPORTS_HIGHMEM=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_XZ=y
+CONFIG_DEVMEM=y
+CONFIG_DMA_NONCOHERENT=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_ELF_CORE=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXT4_FS=y
+CONFIG_FAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_JZ4740=y
+CONFIG_FB_SYS_COPYAREA=y
+CONFIG_FB_SYS_FILLRECT=y
+CONFIG_FB_SYS_IMAGEBLIT=y
+# CONFIG_FB_TMIO is not set
+# CONFIG_FB_WMT_GE_ROPS is not set
+# CONFIG_FIRMWARE_EDID is not set
+CONFIG_FONTS=y
+# CONFIG_FONT_10x18 is not set
+CONFIG_FONT_6x11=y
+# CONFIG_FONT_7x14 is not set
+# CONFIG_FONT_8x16 is not set
+# CONFIG_FONT_8x8 is not set
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_SUN8x16 is not set
+CONFIG_FORCE_MAX_ZONEORDER=12
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FREEZER=y
+CONFIG_FS_MBCACHE=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GPIOLIB=y
+# CONFIG_HAMRADIO is not set
+CONFIG_HARDWARE_WATCHPOINTS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACE_MCOUNT_TEST=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_GENERIC_HARDIRQS=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IRQ_WORK=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PWM=y
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_HW_CONSOLE=y
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+# CONFIG_I2C_PXA_PCI is not set
+# CONFIG_INLINE_READ_UNLOCK is not set
+# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_UNLOCK is not set
+# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_UNLOCK is not set
+# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
+CONFIG_INPUT=y
+CONFIG_INPUT_EVDEV=y
+# CONFIG_INPUT_GPIO_BUTTONS is not set
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_INPUT_MOUSE=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=1024
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=768
+# CONFIG_INPUT_PWM_BEEPER is not set
+CONFIG_INPUT_UINPUT=y
+CONFIG_IRQ_CPU=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_JBD2=y
+CONFIG_JZ4740_QI_LB60=y
+CONFIG_KALLSYMS=y
+CONFIG_KEXEC=y
+# CONFIG_KEYBOARD_GPIO is not set
+# CONFIG_LANTIQ is not set
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=2
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MACH_JZ4740=y
+CONFIG_MFD_CORE=y
+CONFIG_MFD_JZ4740_ADC=y
+# CONFIG_MINIX_FS_NATIVE_ENDIAN is not set
+CONFIG_MIPS=y
+CONFIG_MIPS_CPUFREQ=y
+CONFIG_MIPS_FPU_EMU=y
+CONFIG_MIPS_L1_CACHE_SHIFT=5
+# CONFIG_MIPS_MACHINE is not set
+CONFIG_MIPS_MT_DISABLED=y
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+# CONFIG_MMC_BLOCK_BOUNCE is not set
+CONFIG_MMC_JZ4740=y
+CONFIG_MMC_UNSAFE_RESUME=y
+# CONFIG_MOUSE_BCM5974 is not set
+CONFIG_MOUSE_PS2=y
+# CONFIG_MOUSE_PS2_ALPS is not set
+# CONFIG_MOUSE_PS2_ELANTECH is not set
+# CONFIG_MOUSE_PS2_LOGIPS2PP is not set
+# CONFIG_MOUSE_PS2_SYNAPTICS is not set
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+# CONFIG_MOUSE_PS2_TRACKPOINT is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+# CONFIG_MTD_CFI is not set
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_JZ4740=y
+# CONFIG_MTD_SM_COMMON is not set
+CONFIG_MTD_UBI=y
+CONFIG_MTD_UBI_BEB_RESERVE=1
+# CONFIG_MTD_UBI_DEBUG is not set
+# CONFIG_MTD_UBI_GLUEBI is not set
+CONFIG_MTD_UBI_WL_THRESHOLD=4096
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+# CONFIG_NETWORK_FILESYSTEMS is not set
+# CONFIG_NET_SCHED is not set
+# CONFIG_NEW_LEDS is not set
+CONFIG_NLS=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=y
+CONFIG_NLS_CODEPAGE_775=y
+CONFIG_NLS_CODEPAGE_850=y
+CONFIG_NLS_CODEPAGE_852=y
+CONFIG_NLS_CODEPAGE_855=y
+CONFIG_NLS_CODEPAGE_857=y
+CONFIG_NLS_CODEPAGE_860=y
+CONFIG_NLS_CODEPAGE_861=y
+CONFIG_NLS_CODEPAGE_862=y
+CONFIG_NLS_CODEPAGE_863=y
+CONFIG_NLS_CODEPAGE_864=y
+CONFIG_NLS_CODEPAGE_865=y
+CONFIG_NLS_CODEPAGE_866=y
+CONFIG_NLS_CODEPAGE_869=y
+CONFIG_NLS_CODEPAGE_874=y
+CONFIG_NLS_CODEPAGE_932=y
+CONFIG_NLS_CODEPAGE_936=y
+CONFIG_NLS_CODEPAGE_949=y
+CONFIG_NLS_CODEPAGE_950=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_13=y
+CONFIG_NLS_ISO8859_14=y
+CONFIG_NLS_ISO8859_15=y
+CONFIG_NLS_ISO8859_2=y
+CONFIG_NLS_ISO8859_3=y
+CONFIG_NLS_ISO8859_4=y
+CONFIG_NLS_ISO8859_5=y
+CONFIG_NLS_ISO8859_6=y
+CONFIG_NLS_ISO8859_7=y
+CONFIG_NLS_ISO8859_8=y
+CONFIG_NLS_ISO8859_9=y
+CONFIG_NLS_KOI8_R=y
+CONFIG_NLS_KOI8_U=y
+CONFIG_NLS_UTF8=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+# CONFIG_PDA_POWER is not set
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_SLEEP=y
+CONFIG_POWER_SUPPLY=y
+# CONFIG_POWER_SUPPLY_DEBUG is not set
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_RCU=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_PAGE_MONITOR=y
+# CONFIG_QUOTACTL is not set
+# CONFIG_RCU_BOOST is not set
+CONFIG_REGMAP=y
+CONFIG_REGMAP_I2C=y
+CONFIG_RTC_CLASS=y
+# CONFIG_RTC_DRV_CMOS is not set
+CONFIG_RTC_DRV_JZ4740=y
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SDIO_UART is not set
+CONFIG_SERIO=y
+# CONFIG_SERIO_I8042 is not set
+CONFIG_SERIO_LIBPS2=y
+# CONFIG_SERIO_RAW is not set
+# CONFIG_SERIO_SERPORT is not set
+CONFIG_SND=y
+# CONFIG_SND_EMU10K1_SEQ is not set
+CONFIG_SND_JACK=y
+CONFIG_SND_JZ4740_SOC=y
+CONFIG_SND_JZ4740_SOC_I2S=y
+CONFIG_SND_JZ4740_SOC_QI_LB60=y
+# CONFIG_SND_OPL3_LIB_SEQ is not set
+# CONFIG_SND_OPL4_LIB_SEQ is not set
+CONFIG_SND_PCM=y
+# CONFIG_SND_RAWMIDI_SEQ is not set
+# CONFIG_SND_SBAWE_SEQ is not set
+CONFIG_SND_SOC=y
+# CONFIG_SND_SOC_ALL_CODECS is not set
+CONFIG_SND_SOC_I2C_AND_SPI=y
+CONFIG_SND_SOC_JZ4740_CODEC=y
+CONFIG_SND_TIMER=y
+CONFIG_SOUND=y
+# CONFIG_SOUND_OSS_CORE is not set
+# CONFIG_SQUASHFS is not set
+# CONFIG_STAGING is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+# CONFIG_SYN_COOKIES is not set
+CONFIG_SYS_HAS_CPU_MIPS32_R1=y
+CONFIG_SYS_HAS_EARLY_PRINTK=y
+CONFIG_SYS_SUPPORTS_32BIT_KERNEL=y
+CONFIG_SYS_SUPPORTS_ARBIT_HZ=y
+CONFIG_SYS_SUPPORTS_LITTLE_ENDIAN=y
+CONFIG_TINY_PREEMPT_RCU=y
+CONFIG_UBIFS_FS=y
+CONFIG_UBIFS_FS_ADVANCED_COMPR=y
+# CONFIG_UBIFS_FS_DEBUG is not set
+CONFIG_UBIFS_FS_LZO=y
+# CONFIG_UBIFS_FS_XATTR is not set
+CONFIG_UBIFS_FS_XZ=y
+CONFIG_UBIFS_FS_ZLIB=y
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB_ARCH_HAS_XHCI is not set
+# CONFIG_USB_AUDIO is not set
+# CONFIG_USB_CDC_COMPOSITE is not set
+CONFIG_USB_COMMON=y
+CONFIG_USB_ETH=y
+# CONFIG_USB_ETH_EEM is not set
+# CONFIG_USB_ETH_RNDIS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_FUNCTIONFS is not set
+CONFIG_USB_FUSB300=y
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+# CONFIG_USB_GADGET_DEBUG_FS is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
+CONFIG_USB_GADGET_VBUS_DRAW=2
+# CONFIG_USB_G_ACM_MS is not set
+# CONFIG_USB_G_DBGP is not set
+# CONFIG_USB_G_HID is not set
+# CONFIG_USB_G_NCM is not set
+# CONFIG_USB_G_PRINTER is not set
+# CONFIG_USB_G_SERIAL is not set
+# CONFIG_USB_JZ4740 is not set
+# CONFIG_USB_M66592 is not set
+# CONFIG_USB_MIDI_GADGET is not set
+# CONFIG_USB_NET2272 is not set
+# CONFIG_USB_R8A66597 is not set
+CONFIG_USB_SUPPORT=y
+# CONFIG_USB_ZERO is not set
+CONFIG_VFAT_FS=y
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_VLAN_8021Q is not set
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+CONFIG_VT_HW_CONSOLE_BINDING=y
+# CONFIG_WATCHDOG is not set
+CONFIG_XZ_DEC=y
+CONFIG_ZONE_DMA_FLAG=0
--- /dev/null
+From 73aab29ddc44a3e1a7156473ad5bc9cd80704274 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Tue, 15 Mar 2011 12:49:15 +0100
+Subject: [PATCH 01/21] ubi: Read only the vid header instead of the whole
+ page
+
+---
+ drivers/mtd/ubi/io.c | 2 +-
+ 1 files changed, 1 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
+index f20b6f2..e66079d 100644
+--- a/drivers/mtd/ubi/io.c
++++ b/drivers/mtd/ubi/io.c
+@@ -1031,7 +1031,7 @@ int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,
+
+ p = (char *)vid_hdr - ubi->vid_hdr_shift;
+ read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,
+- ubi->vid_hdr_alsize);
++ UBI_VID_HDR_SIZE + ubi->vid_hdr_shift);
+ if (read_err && read_err != UBI_IO_BITFLIPS && !mtd_is_eccerr(read_err))
+ return read_err;
+
+--
+1.7.5.4
+
--- /dev/null
+From 537082e01849ca85227c5b462b8ac9aceb11b77a Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 12:18:46 +0200
+Subject: [PATCH 02/21] Add jz4740 udc driver
+
+History:
+- driver by Ingenic
+- patch by Lars-Peter Clausen.
+- updated to 3.1 by Maarten ter Huurne
+---
+ drivers/usb/gadget/Kconfig | 8 +
+ drivers/usb/gadget/Makefile | 1 +
+ drivers/usb/gadget/gadget_chips.h | 3 +
+ drivers/usb/gadget/jz4740_udc.c | 2199 +++++++++++++++++++++++++++++++++++++
+ drivers/usb/gadget/jz4740_udc.h | 101 ++
+ 5 files changed, 2312 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/usb/gadget/jz4740_udc.c
+ create mode 100644 drivers/usb/gadget/jz4740_udc.h
+
+diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
+index 23a4473..89b7d28 100644
+--- a/drivers/usb/gadget/Kconfig
++++ b/drivers/usb/gadget/Kconfig
+@@ -178,6 +178,14 @@ config USB_FUSB300
+ help
+ Faraday usb device controller FUSB300 driver
+
++config USB_JZ4740
++ tristate "JZ4740 UDC"
++ depends on MACH_JZ4740
++ select USB_GADGET_DUALSPEED
++ help
++ Select this to support the Ingenic JZ4740 processor
++ high speed USB device controller.
++
+ config USB_OMAP
+ tristate "OMAP USB Device Controller"
+ depends on ARCH_OMAP
+diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
+index b54ac61..2d65f6e 100644
+--- a/drivers/usb/gadget/Makefile
++++ b/drivers/usb/gadget/Makefile
+@@ -31,6 +31,7 @@ obj-$(CONFIG_USB_PXA_U2O) += mv_udc.o
+ mv_udc-y := mv_udc_core.o
+ obj-$(CONFIG_USB_CI13XXX_MSM) += ci13xxx_msm.o
+ obj-$(CONFIG_USB_FUSB300) += fusb300_udc.o
++obj-$(CONFIG_USB_JZ4740) += jz4740_udc.o
+
+ #
+ # USB gadget drivers
+diff --git a/drivers/usb/gadget/gadget_chips.h b/drivers/usb/gadget/gadget_chips.h
+index a8855d0..99f1580 100644
+--- a/drivers/usb/gadget/gadget_chips.h
++++ b/drivers/usb/gadget/gadget_chips.h
+@@ -36,6 +36,7 @@
+ #define gadget_is_fsl_usb2(g) (!strcmp("fsl-usb2-udc", (g)->name))
+ #define gadget_is_goku(g) (!strcmp("goku_udc", (g)->name))
+ #define gadget_is_imx(g) (!strcmp("imx_udc", (g)->name))
++#define gadget_is_jz4740(g) (!strcmp("ingenic_hsusb", (g)->name))
+ #define gadget_is_langwell(g) (!strcmp("langwell_udc", (g)->name))
+ #define gadget_is_m66592(g) (!strcmp("m66592_udc", (g)->name))
+ #define gadget_is_musbhdrc(g) (!strcmp("musb-hdrc", (g)->name))
+@@ -118,6 +119,8 @@ static inline int usb_gadget_controller_number(struct usb_gadget *gadget)
+ return 0x31;
+ else if (gadget_is_dwc3(gadget))
+ return 0x32;
++ else if (gadget_is_jz4740(gadget))
++ return 0x33;
+
+ return -ENOENT;
+ }
+diff --git a/drivers/usb/gadget/jz4740_udc.c b/drivers/usb/gadget/jz4740_udc.c
+new file mode 100644
+index 0000000..8d36434
+--- /dev/null
++++ b/drivers/usb/gadget/jz4740_udc.c
+@@ -0,0 +1,2199 @@
++/*
++ * linux/drivers/usb/gadget/jz4740_udc.c
++ *
++ * Ingenic JZ4740 on-chip high speed USB device controller
++ *
++ * Copyright (C) 2006 - 2008 Ingenic Semiconductor Inc.
++ * Author: <jlwei@ingenic.cn>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++/*
++ * This device has ep0, two bulk-in/interrupt-in endpoints, and one bulk-out endpoint.
++ *
++ * - Endpoint numbering is fixed: ep0, ep1in-int, ep2in-bulk, ep1out-bulk.
++ * - DMA works with bulk-in (channel 1) and bulk-out (channel 2) endpoints.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/delay.h>
++#include <linux/ioport.h>
++#include <linux/slab.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/interrupt.h>
++#include <linux/proc_fs.h>
++#include <linux/usb.h>
++#include <linux/usb/gadget.h>
++#include <linux/clk.h>
++
++#include <asm/byteorder.h>
++#include <asm/io.h>
++#include <asm/irq.h>
++#include <asm/system.h>
++#include <asm/mach-jz4740/clock.h>
++
++#include "jz4740_udc.h"
++
++#define JZ_REG_UDC_FADDR 0x00 /* Function Address 8-bit */
++#define JZ_REG_UDC_POWER 0x01 /* Power Management 8-bit */
++#define JZ_REG_UDC_INTRIN 0x02 /* Interrupt IN 16-bit */
++#define JZ_REG_UDC_INTROUT 0x04 /* Interrupt OUT 16-bit */
++#define JZ_REG_UDC_INTRINE 0x06 /* Intr IN enable 16-bit */
++#define JZ_REG_UDC_INTROUTE 0x08 /* Intr OUT enable 16-bit */
++#define JZ_REG_UDC_INTRUSB 0x0a /* Interrupt USB 8-bit */
++#define JZ_REG_UDC_INTRUSBE 0x0b /* Interrupt USB Enable 8-bit */
++#define JZ_REG_UDC_FRAME 0x0c /* Frame number 16-bit */
++#define JZ_REG_UDC_INDEX 0x0e /* Index register 8-bit */
++#define JZ_REG_UDC_TESTMODE 0x0f /* USB test mode 8-bit */
++
++#define JZ_REG_UDC_CSR0 0x12 /* EP0 CSR 8-bit */
++#define JZ_REG_UDC_INMAXP 0x10 /* EP1-2 IN Max Pkt Size 16-bit */
++#define JZ_REG_UDC_INCSR 0x12 /* EP1-2 IN CSR LSB 8/16bit */
++#define JZ_REG_UDC_INCSRH 0x13 /* EP1-2 IN CSR MSB 8-bit */
++
++#define JZ_REG_UDC_OUTMAXP 0x14 /* EP1 OUT Max Pkt Size 16-bit */
++#define JZ_REG_UDC_OUTCSR 0x16 /* EP1 OUT CSR LSB 8/16bit */
++#define JZ_REG_UDC_OUTCSRH 0x17 /* EP1 OUT CSR MSB 8-bit */
++#define JZ_REG_UDC_OUTCOUNT 0x18 /* bytes in EP0/1 OUT FIFO 16-bit */
++
++#define JZ_REG_UDC_EP_FIFO(x) (4 * (x) + 0x20)
++
++#define JZ_REG_UDC_EPINFO 0x78 /* Endpoint information */
++#define JZ_REG_UDC_RAMINFO 0x79 /* RAM information */
++
++#define JZ_REG_UDC_INTR 0x200 /* DMA pending interrupts */
++#define JZ_REG_UDC_CNTL1 0x204 /* DMA channel 1 control */
++#define JZ_REG_UDC_ADDR1 0x208 /* DMA channel 1 AHB memory addr */
++#define JZ_REG_UDC_COUNT1 0x20c /* DMA channel 1 byte count */
++#define JZ_REG_UDC_CNTL2 0x214 /* DMA channel 2 control */
++#define JZ_REG_UDC_ADDR2 0x218 /* DMA channel 2 AHB memory addr */
++#define JZ_REG_UDC_COUNT2 0x21c /* DMA channel 2 byte count */
++
++/* Power register bit masks */
++#define USB_POWER_SUSPENDM 0x01
++#define USB_POWER_RESUME 0x04
++#define USB_POWER_HSMODE 0x10
++#define USB_POWER_HSENAB 0x20
++#define USB_POWER_SOFTCONN 0x40
++
++/* Interrupt register bit masks */
++#define USB_INTR_SUSPEND 0x01
++#define USB_INTR_RESUME 0x02
++#define USB_INTR_RESET 0x04
++
++#define USB_INTR_EP0 0x0001
++#define USB_INTR_INEP1 0x0002
++#define USB_INTR_INEP2 0x0004
++#define USB_INTR_OUTEP1 0x0002
++
++/* CSR0 bit masks */
++#define USB_CSR0_OUTPKTRDY 0x01
++#define USB_CSR0_INPKTRDY 0x02
++#define USB_CSR0_SENTSTALL 0x04
++#define USB_CSR0_DATAEND 0x08
++#define USB_CSR0_SETUPEND 0x10
++#define USB_CSR0_SENDSTALL 0x20
++#define USB_CSR0_SVDOUTPKTRDY 0x40
++#define USB_CSR0_SVDSETUPEND 0x80
++
++/* Endpoint CSR register bits */
++#define USB_INCSRH_AUTOSET 0x80
++#define USB_INCSRH_ISO 0x40
++#define USB_INCSRH_MODE 0x20
++#define USB_INCSRH_DMAREQENAB 0x10
++#define USB_INCSRH_DMAREQMODE 0x04
++#define USB_INCSR_CDT 0x40
++#define USB_INCSR_SENTSTALL 0x20
++#define USB_INCSR_SENDSTALL 0x10
++#define USB_INCSR_FF 0x08
++#define USB_INCSR_UNDERRUN 0x04
++#define USB_INCSR_FFNOTEMPT 0x02
++#define USB_INCSR_INPKTRDY 0x01
++
++#define USB_OUTCSRH_AUTOCLR 0x80
++#define USB_OUTCSRH_ISO 0x40
++#define USB_OUTCSRH_DMAREQENAB 0x20
++#define USB_OUTCSRH_DNYT 0x10
++#define USB_OUTCSRH_DMAREQMODE 0x08
++#define USB_OUTCSR_CDT 0x80
++#define USB_OUTCSR_SENTSTALL 0x40
++#define USB_OUTCSR_SENDSTALL 0x20
++#define USB_OUTCSR_FF 0x10
++#define USB_OUTCSR_DATAERR 0x08
++#define USB_OUTCSR_OVERRUN 0x04
++#define USB_OUTCSR_FFFULL 0x02
++#define USB_OUTCSR_OUTPKTRDY 0x01
++
++/* DMA control bits */
++#define USB_CNTL_ENA 0x01
++#define USB_CNTL_DIR_IN 0x02
++#define USB_CNTL_MODE_1 0x04
++#define USB_CNTL_INTR_EN 0x08
++#define USB_CNTL_EP(n) ((n) << 4)
++#define USB_CNTL_BURST_0 (0 << 9)
++#define USB_CNTL_BURST_4 (1 << 9)
++#define USB_CNTL_BURST_8 (2 << 9)
++#define USB_CNTL_BURST_16 (3 << 9)
++
++
++#ifndef DEBUG
++# define DEBUG(fmt,args...) do {} while(0)
++#endif
++#ifndef DEBUG_EP0
++# define NO_STATES
++# define DEBUG_EP0(fmt,args...) do {} while(0)
++#endif
++#ifndef DEBUG_SETUP
++# define DEBUG_SETUP(fmt,args...) do {} while(0)
++#endif
++
++static struct jz4740_udc jz4740_udc_controller;
++
++/*
++ * Local declarations.
++ */
++static int jz4740_udc_start(struct usb_gadget_driver *driver,
++ int (*bind)(struct usb_gadget *));
++static int jz4740_udc_stop(struct usb_gadget_driver *driver);
++static void jz4740_ep0_kick(struct jz4740_udc *dev, struct jz4740_ep *ep);
++static void jz4740_handle_ep0(struct jz4740_udc *dev, uint32_t intr);
++
++static void done(struct jz4740_ep *ep, struct jz4740_request *req,
++ int status);
++static void pio_irq_enable(struct jz4740_ep *ep);
++static void pio_irq_disable(struct jz4740_ep *ep);
++static void stop_activity(struct jz4740_udc *dev,
++ struct usb_gadget_driver *driver);
++static void nuke(struct jz4740_ep *ep, int status);
++static void flush(struct jz4740_ep *ep);
++static void udc_set_address(struct jz4740_udc *dev, unsigned char address);
++
++/*-------------------------------------------------------------------------*/
++
++/* inline functions of register read/write/set/clear */
++
++static inline uint8_t usb_readb(struct jz4740_udc *udc, size_t reg)
++{
++ return readb(udc->base + reg);
++}
++
++static inline uint16_t usb_readw(struct jz4740_udc *udc, size_t reg)
++{
++ return readw(udc->base + reg);
++}
++
++static inline uint32_t usb_readl(struct jz4740_udc *udc, size_t reg)
++{
++ return readl(udc->base + reg);
++}
++
++static inline void usb_writeb(struct jz4740_udc *udc, size_t reg, uint8_t val)
++{
++ writeb(val, udc->base + reg);
++}
++
++static inline void usb_writew(struct jz4740_udc *udc, size_t reg, uint16_t val)
++{
++ writew(val, udc->base + reg);
++}
++
++static inline void usb_writel(struct jz4740_udc *udc, size_t reg, uint32_t val)
++{
++ writel(val, udc->base + reg);
++}
++
++static inline void usb_setb(struct jz4740_udc *udc, size_t reg, uint8_t mask)
++{
++ usb_writeb(udc, reg, usb_readb(udc, reg) | mask);
++}
++
++static inline void usb_setw(struct jz4740_udc *udc, size_t reg, uint16_t mask)
++{
++ usb_writew(udc, reg, usb_readw(udc, reg) | mask);
++}
++
++static inline void usb_clearb(struct jz4740_udc *udc, size_t reg, uint8_t mask)
++{
++ usb_writeb(udc, reg, usb_readb(udc, reg) & ~mask);
++}
++
++static inline void usb_clearw(struct jz4740_udc *udc, size_t reg, uint16_t mask)
++{
++ usb_writew(udc, reg, usb_readw(udc, reg) & ~mask);
++}
++
++/*-------------------------------------------------------------------------*/
++
++static inline void jz_udc_set_index(struct jz4740_udc *udc, uint8_t index)
++{
++ usb_writeb(udc, JZ_REG_UDC_INDEX, index);
++}
++
++static inline void jz_udc_select_ep(struct jz4740_ep *ep)
++{
++ jz_udc_set_index(ep->dev, ep_index(ep));
++}
++
++static inline int write_packet(struct jz4740_ep *ep,
++ struct jz4740_request *req, unsigned int count)
++{
++ uint8_t *buf;
++ unsigned int length;
++ void __iomem *fifo = ep->dev->base + ep->fifo;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ buf = req->req.buf + req->req.actual;
++
++ length = req->req.length - req->req.actual;
++ if (length > count)
++ length = count;
++ req->req.actual += length;
++
++ DEBUG("Write %d (count %d), fifo %x\n", length, count, ep->fifo);
++
++ writesl(fifo, buf, length >> 2);
++ writesb(fifo, &buf[length - (length & 3)], length & 3);
++
++ return length;
++}
++
++static int read_packet(struct jz4740_ep *ep,
++ struct jz4740_request *req, unsigned int count)
++{
++ uint8_t *buf;
++ unsigned int length;
++ void __iomem *fifo = ep->dev->base + ep->fifo;
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ buf = req->req.buf + req->req.actual;
++
++ length = req->req.length - req->req.actual;
++ if (length > count)
++ length = count;
++ req->req.actual += length;
++
++ DEBUG("Read %d, fifo %x\n", length, ep->fifo);
++
++ readsl(fifo, buf, length >> 2);
++ readsb(fifo, &buf[length - (length & 3)], length & 3);
++
++ return length;
++}
++
++/*-------------------------------------------------------------------------*/
++
++/*
++ * udc_disable - disable USB device controller
++ */
++static void udc_disable(struct jz4740_udc *dev)
++{
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ udc_set_address(dev, 0);
++
++ /* Disable interrupts */
++ usb_writew(dev, JZ_REG_UDC_INTRINE, 0);
++ usb_writew(dev, JZ_REG_UDC_INTROUTE, 0);
++ usb_writeb(dev, JZ_REG_UDC_INTRUSBE, 0);
++
++ /* Disable DMA */
++ usb_writel(dev, JZ_REG_UDC_CNTL1, 0);
++ usb_writel(dev, JZ_REG_UDC_CNTL2, 0);
++
++ /* Disconnect from usb */
++ usb_clearb(dev, JZ_REG_UDC_POWER, USB_POWER_SOFTCONN);
++
++ /* Disable the USB PHY */
++ clk_disable(dev->clk);
++
++ dev->ep0state = WAIT_FOR_SETUP;
++ dev->gadget.speed = USB_SPEED_UNKNOWN;
++
++ return;
++}
++
++/*
++ * udc_reinit - initialize software state
++ */
++static void udc_reinit(struct jz4740_udc *dev)
++{
++ int i;
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ /* device/ep0 records init */
++ INIT_LIST_HEAD(&dev->gadget.ep_list);
++ INIT_LIST_HEAD(&dev->gadget.ep0->ep_list);
++ dev->ep0state = WAIT_FOR_SETUP;
++
++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
++ struct jz4740_ep *ep = &dev->ep[i];
++
++ if (i != 0)
++ list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
++
++ INIT_LIST_HEAD(&ep->queue);
++ ep->desc = 0;
++ ep->stopped = 0;
++ }
++}
++
++/* until it's enabled, this UDC should be completely invisible
++ * to any USB host.
++ */
++static void udc_enable(struct jz4740_udc *dev)
++{
++ int i;
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ /* UDC state is incorrect - Added by River */
++ if (dev->state != UDC_STATE_ENABLE) {
++ return;
++ }
++
++ dev->gadget.speed = USB_SPEED_UNKNOWN;
++
++ /* Flush FIFO for each */
++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
++ struct jz4740_ep *ep = &dev->ep[i];
++
++ jz_udc_select_ep(ep);
++ flush(ep);
++ }
++
++ /* Set this bit to allow the UDC entering low-power mode when
++ * there are no actions on the USB bus.
++ * UDC still works during this bit was set.
++ */
++ jz4740_clock_udc_enable_auto_suspend();
++
++ /* Enable the USB PHY */
++ clk_enable(dev->clk);
++
++ /* Disable interrupts */
++/* usb_writew(dev, JZ_REG_UDC_INTRINE, 0);
++ usb_writew(dev, JZ_REG_UDC_INTROUTE, 0);
++ usb_writeb(dev, JZ_REG_UDC_INTRUSBE, 0);*/
++
++ /* Enable interrupts */
++ usb_setw(dev, JZ_REG_UDC_INTRINE, USB_INTR_EP0);
++ usb_setb(dev, JZ_REG_UDC_INTRUSBE, USB_INTR_RESET);
++ /* Don't enable rest of the interrupts */
++ /* usb_setw(dev, JZ_REG_UDC_INTRINE, USB_INTR_INEP1 | USB_INTR_INEP2);
++ usb_setw(dev, JZ_REG_UDC_INTROUTE, USB_INTR_OUTEP1); */
++
++ /* Enable SUSPEND */
++ /* usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_SUSPENDM); */
++
++ /* Enable HS Mode */
++ usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_HSENAB);
++
++ /* Let host detect UDC:
++ * Software must write a 1 to the PMR:USB_POWER_SOFTCONN bit to turn this
++ * transistor on and pull the USBDP pin HIGH.
++ */
++ usb_setb(dev, JZ_REG_UDC_POWER, USB_POWER_SOFTCONN);
++
++ return;
++}
++
++/*-------------------------------------------------------------------------*/
++
++/* keeping it simple:
++ * - one bus driver, initted first;
++ * - one function driver, initted second
++ */
++
++/*
++ * Register entry point for the peripheral controller driver.
++ */
++
++static int jz4740_udc_start(struct usb_gadget_driver *driver,
++ int (*bind)(struct usb_gadget *))
++{
++ struct jz4740_udc *dev = &jz4740_udc_controller;
++ int retval;
++
++ if (!driver || !bind)
++ return -EINVAL;
++
++ if (!dev)
++ return -ENODEV;
++
++ if (dev->driver)
++ return -EBUSY;
++
++ /* hook up the driver */
++ dev->driver = driver;
++ dev->gadget.dev.driver = &driver->driver;
++
++ retval = bind(&dev->gadget);
++ if (retval) {
++ DEBUG("%s: bind to driver %s --> error %d\n", dev->gadget.name,
++ driver->driver.name, retval);
++ dev->driver = 0;
++ return retval;
++ }
++
++ /* then enable host detection and ep0; and we're ready
++ * for set_configuration as well as eventual disconnect.
++ */
++ udc_enable(dev);
++
++ DEBUG("%s: registered gadget driver '%s'\n", dev->gadget.name,
++ driver->driver.name);
++
++ return 0;
++}
++
++static void stop_activity(struct jz4740_udc *dev,
++ struct usb_gadget_driver *driver)
++{
++ int i;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ /* don't disconnect drivers more than once */
++ if (dev->gadget.speed == USB_SPEED_UNKNOWN)
++ driver = 0;
++ dev->gadget.speed = USB_SPEED_UNKNOWN;
++
++ /* prevent new request submissions, kill any outstanding requests */
++ for (i = 0; i < UDC_MAX_ENDPOINTS; i++) {
++ struct jz4740_ep *ep = &dev->ep[i];
++
++ ep->stopped = 1;
++
++ jz_udc_select_ep(ep);
++ nuke(ep, -ESHUTDOWN);
++ }
++
++ /* report disconnect; the driver is already quiesced */
++ if (driver) {
++ spin_unlock(&dev->lock);
++ driver->disconnect(&dev->gadget);
++ spin_lock(&dev->lock);
++ }
++
++ /* re-init driver-visible data structures */
++ udc_reinit(dev);
++}
++
++
++/*
++ * Unregister entry point for the peripheral controller driver.
++ */
++static int jz4740_udc_stop(struct usb_gadget_driver *driver)
++{
++ struct jz4740_udc *dev = &jz4740_udc_controller;
++ unsigned long flags;
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ if (!dev)
++ return -ENODEV;
++ if (!driver || driver != dev->driver)
++ return -EINVAL;
++ if (!driver->unbind)
++ return -EBUSY;
++
++ spin_lock_irqsave(&dev->lock, flags);
++ dev->driver = 0;
++ stop_activity(dev, driver);
++ spin_unlock_irqrestore(&dev->lock, flags);
++
++ driver->unbind(&dev->gadget);
++
++ udc_disable(dev);
++
++ DEBUG("unregistered driver '%s'\n", driver->driver.name);
++
++ return 0;
++}
++
++/*-------------------------------------------------------------------------*/
++
++/** Write request to FIFO (max write == maxp size)
++ * Return: 0 = still running, 1 = completed, negative = errno
++ * NOTE: INDEX register must be set for EP
++ */
++static int write_fifo(struct jz4740_ep *ep, struct jz4740_request *req)
++{
++ struct jz4740_udc *dev = ep->dev;
++ uint32_t max, csr;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++ max = le16_to_cpu(ep->desc->wMaxPacketSize);
++
++ csr = usb_readb(dev, ep->csr);
++
++ if (!(csr & USB_INCSR_FFNOTEMPT)) {
++ unsigned count;
++ int is_last, is_short;
++
++ count = write_packet(ep, req, max);
++ usb_setb(dev, ep->csr, USB_INCSR_INPKTRDY);
++
++ /* last packet is usually short (or a zlp) */
++ if (unlikely(count != max))
++ is_last = is_short = 1;
++ else {
++ if (likely(req->req.length != req->req.actual)
++ || req->req.zero)
++ is_last = 0;
++ else
++ is_last = 1;
++ /* interrupt/iso maxpacket may not fill the fifo */
++ is_short = unlikely(max < ep_maxpacket(ep));
++ }
++
++ DEBUG("%s: wrote %s %d bytes%s%s %d left %p\n", __FUNCTION__,
++ ep->ep.name, count,
++ is_last ? "/L" : "", is_short ? "/S" : "",
++ req->req.length - req->req.actual, req);
++
++ /* requests complete when all IN data is in the FIFO */
++ if (is_last) {
++ done(ep, req, 0);
++ if (list_empty(&ep->queue)) {
++ pio_irq_disable(ep);
++ }
++ return 1;
++ }
++ } else {
++ DEBUG("Hmm.. %d ep FIFO is not empty!\n", ep_index(ep));
++ }
++
++ return 0;
++}
++
++/** Read to request from FIFO (max read == bytes in fifo)
++ * Return: 0 = still running, 1 = completed, negative = errno
++ * NOTE: INDEX register must be set for EP
++ */
++static int read_fifo(struct jz4740_ep *ep, struct jz4740_request *req)
++{
++ struct jz4740_udc *dev = ep->dev;
++ uint32_t csr;
++ unsigned count, is_short;
++
++ /* make sure there's a packet in the FIFO. */
++ csr = usb_readb(dev, ep->csr);
++ if (!(csr & USB_OUTCSR_OUTPKTRDY)) {
++ DEBUG("%s: Packet NOT ready!\n", __FUNCTION__);
++ return -EINVAL;
++ }
++
++ /* read all bytes from this packet */
++ count = usb_readw(dev, JZ_REG_UDC_OUTCOUNT);
++
++ is_short = (count < ep->ep.maxpacket);
++
++ count = read_packet(ep, req, count);
++
++ DEBUG("read %s %02x, %d bytes%s req %p %d/%d\n",
++ ep->ep.name, csr, count,
++ is_short ? "/S" : "", req, req->req.actual, req->req.length);
++
++ /* Clear OutPktRdy */
++ usb_clearb(dev, ep->csr, USB_OUTCSR_OUTPKTRDY);
++
++ /* completion */
++ if (is_short || req->req.actual == req->req.length) {
++ done(ep, req, 0);
++
++ if (list_empty(&ep->queue))
++ pio_irq_disable(ep);
++ return 1;
++ }
++
++ /* finished that packet. the next one may be waiting... */
++ return 0;
++}
++
++/*
++ * done - retire a request; caller blocked irqs
++ * INDEX register is preserved to keep same
++ */
++static void done(struct jz4740_ep *ep, struct jz4740_request *req, int status)
++{
++ unsigned int stopped = ep->stopped;
++ uint32_t index;
++
++ DEBUG("%s, %p\n", __FUNCTION__, ep);
++ list_del_init(&req->queue);
++
++ if (likely(req->req.status == -EINPROGRESS))
++ req->req.status = status;
++ else
++ status = req->req.status;
++
++ if (status && status != -ESHUTDOWN)
++ DEBUG("complete %s req %p stat %d len %u/%u\n",
++ ep->ep.name, &req->req, status,
++ req->req.actual, req->req.length);
++
++ /* don't modify queue heads during completion callback */
++ ep->stopped = 1;
++ /* Read current index (completion may modify it) */
++ index = usb_readb(ep->dev, JZ_REG_UDC_INDEX);
++ spin_unlock_irqrestore(&ep->dev->lock, ep->dev->lock_flags);
++
++ req->req.complete(&ep->ep, &req->req);
++
++ spin_lock_irqsave(&ep->dev->lock, ep->dev->lock_flags);
++ /* Restore index */
++ jz_udc_set_index(ep->dev, index);
++ ep->stopped = stopped;
++}
++
++static inline unsigned int jz4740_udc_ep_irq_enable_reg(struct jz4740_ep *ep)
++{
++ if (ep_is_in(ep))
++ return JZ_REG_UDC_INTRINE;
++ else
++ return JZ_REG_UDC_INTROUTE;
++}
++
++/** Enable EP interrupt */
++static void pio_irq_enable(struct jz4740_ep *ep)
++{
++ DEBUG("%s: EP%d %s\n", __FUNCTION__, ep_index(ep), ep_is_in(ep) ? "IN": "OUT");
++
++ usb_setw(ep->dev, jz4740_udc_ep_irq_enable_reg(ep), BIT(ep_index(ep)));
++}
++
++/** Disable EP interrupt */
++static void pio_irq_disable(struct jz4740_ep *ep)
++{
++ DEBUG("%s: EP%d %s\n", __FUNCTION__, ep_index(ep), ep_is_in(ep) ? "IN": "OUT");
++
++ usb_clearw(ep->dev, jz4740_udc_ep_irq_enable_reg(ep), BIT(ep_index(ep)));
++}
++
++/*
++ * nuke - dequeue ALL requests
++ */
++static void nuke(struct jz4740_ep *ep, int status)
++{
++ struct jz4740_request *req;
++
++ DEBUG("%s, %p\n", __FUNCTION__, ep);
++
++ /* Flush FIFO */
++ flush(ep);
++
++ /* called with irqs blocked */
++ while (!list_empty(&ep->queue)) {
++ req = list_entry(ep->queue.next, struct jz4740_request, queue);
++ done(ep, req, status);
++ }
++
++ /* Disable IRQ if EP is enabled (has descriptor) */
++ if (ep->desc)
++ pio_irq_disable(ep);
++}
++
++/** Flush EP FIFO
++ * NOTE: INDEX register must be set before this call
++ */
++static void flush(struct jz4740_ep *ep)
++{
++ DEBUG("%s: %s\n", __FUNCTION__, ep->ep.name);
++
++ switch (ep->type) {
++ case ep_bulk_in:
++ case ep_interrupt:
++ usb_setb(ep->dev, ep->csr, USB_INCSR_FF);
++ break;
++ case ep_bulk_out:
++ usb_setb(ep->dev, ep->csr, USB_OUTCSR_FF);
++ break;
++ case ep_control:
++ break;
++ }
++}
++
++/**
++ * jz4740_in_epn - handle IN interrupt
++ */
++static void jz4740_in_epn(struct jz4740_udc *dev, uint32_t ep_idx, uint32_t intr)
++{
++ uint32_t csr;
++ struct jz4740_ep *ep = &dev->ep[ep_idx + 1];
++ struct jz4740_request *req;
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ jz_udc_select_ep(ep);
++
++ csr = usb_readb(dev, ep->csr);
++ DEBUG("%s: %d, csr %x\n", __FUNCTION__, ep_idx, csr);
++
++ if (csr & USB_INCSR_SENTSTALL) {
++ DEBUG("USB_INCSR_SENTSTALL\n");
++ usb_clearb(dev, ep->csr, USB_INCSR_SENTSTALL);
++ return;
++ }
++
++ if (!ep->desc) {
++ DEBUG("%s: NO EP DESC\n", __FUNCTION__);
++ return;
++ }
++
++ if (!list_empty(&ep->queue)) {
++ req = list_first_entry(&ep->queue, struct jz4740_request, queue);
++ write_fifo(ep, req);
++ }
++}
++
++/*
++ * Bulk OUT (recv)
++ */
++static void jz4740_out_epn(struct jz4740_udc *dev, uint32_t ep_idx, uint32_t intr)
++{
++ struct jz4740_ep *ep = &dev->ep[ep_idx];
++ struct jz4740_request *req;
++
++ DEBUG("%s: %d\n", __FUNCTION__, ep_idx);
++
++ jz_udc_select_ep(ep);
++ if (ep->desc) {
++ uint32_t csr;
++
++ while ((csr = usb_readb(dev, ep->csr)) &
++ (USB_OUTCSR_OUTPKTRDY | USB_OUTCSR_SENTSTALL)) {
++ DEBUG("%s: %x\n", __FUNCTION__, csr);
++
++ if (csr & USB_OUTCSR_SENTSTALL) {
++ DEBUG("%s: stall sent, flush fifo\n",
++ __FUNCTION__);
++ /* usb_set(USB_OUT_CSR1_FIFO_FLUSH, ep->csr1); */
++ flush(ep);
++ } else if (csr & USB_OUTCSR_OUTPKTRDY) {
++ if (list_empty(&ep->queue))
++ req = 0;
++ else
++ req =
++ list_entry(ep->queue.next,
++ struct jz4740_request,
++ queue);
++
++ if (!req) {
++ DEBUG("%s: NULL REQ %d\n",
++ __FUNCTION__, ep_idx);
++ break;
++ } else {
++ read_fifo(ep, req);
++ }
++ }
++ }
++ } else {
++ /* Throw packet away.. */
++ DEBUG("%s: ep %p ep_indx %d No descriptor?!?\n", __FUNCTION__, ep, ep_idx);
++ flush(ep);
++ }
++}
++
++/** Halt specific EP
++ * Return 0 if success
++ * NOTE: Sets INDEX register to EP !
++ */
++static int jz4740_set_halt(struct usb_ep *_ep, int value)
++{
++ struct jz4740_udc *dev;
++ struct jz4740_ep *ep;
++ unsigned long flags;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (unlikely(!_ep || (!ep->desc && ep->type != ep_control))) {
++ DEBUG("%s, bad ep\n", __FUNCTION__);
++ return -EINVAL;
++ }
++
++ dev = ep->dev;
++
++ spin_lock_irqsave(&dev->lock, flags);
++
++ jz_udc_select_ep(ep);
++
++ DEBUG("%s, ep %d, val %d\n", __FUNCTION__, ep_index(ep), value);
++
++ if (ep_index(ep) == 0) {
++ /* EP0 */
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SENDSTALL);
++ } else if (ep_is_in(ep)) {
++ uint32_t csr = usb_readb(dev, ep->csr);
++ if (value && ((csr & USB_INCSR_FFNOTEMPT)
++ || !list_empty(&ep->queue))) {
++ /*
++ * Attempts to halt IN endpoints will fail (returning -EAGAIN)
++ * if any transfer requests are still queued, or if the controller
++ * FIFO still holds bytes that the host hasn\92t collected.
++ */
++ spin_unlock_irqrestore(&dev->lock, flags);
++ DEBUG
++ ("Attempt to halt IN endpoint failed (returning -EAGAIN) %d %d\n",
++ (csr & USB_INCSR_FFNOTEMPT),
++ !list_empty(&ep->queue));
++ return -EAGAIN;
++ }
++ flush(ep);
++ if (value) {
++ usb_setb(dev, ep->csr, USB_INCSR_SENDSTALL);
++ } else {
++ usb_clearb(dev, ep->csr, USB_INCSR_SENDSTALL);
++ usb_setb(dev, ep->csr, USB_INCSR_CDT);
++ }
++ } else {
++
++ flush(ep);
++ if (value) {
++ usb_setb(dev, ep->csr, USB_OUTCSR_SENDSTALL);
++ } else {
++ usb_clearb(dev, ep->csr, USB_OUTCSR_SENDSTALL);
++ usb_setb(dev, ep->csr, USB_OUTCSR_CDT);
++ }
++ }
++
++ ep->stopped = value;
++
++ spin_unlock_irqrestore(&dev->lock, flags);
++
++ DEBUG("%s %s halted\n", _ep->name, value == 0 ? "NOT" : "IS");
++
++ return 0;
++}
++
++
++static int jz4740_ep_enable(struct usb_ep *_ep,
++ const struct usb_endpoint_descriptor *desc)
++{
++ struct jz4740_ep *ep;
++ struct jz4740_udc *dev;
++ unsigned long flags;
++ uint32_t max, csrh = 0;
++
++ DEBUG("%s: trying to enable %s\n", __FUNCTION__, _ep->name);
++
++ if (!_ep || !desc)
++ return -EINVAL;
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (ep->desc || ep->type == ep_control
++ || desc->bDescriptorType != USB_DT_ENDPOINT
++ || ep->bEndpointAddress != desc->bEndpointAddress) {
++ DEBUG("%s, bad ep or descriptor\n", __FUNCTION__);
++ return -EINVAL;
++ }
++
++ /* xfer types must match, except that interrupt ~= bulk */
++ if (ep->bmAttributes != desc->bmAttributes
++ && ep->bmAttributes != USB_ENDPOINT_XFER_BULK
++ && desc->bmAttributes != USB_ENDPOINT_XFER_INT) {
++ DEBUG("%s, %s type mismatch\n", __FUNCTION__, _ep->name);
++ return -EINVAL;
++ }
++
++ dev = ep->dev;
++ if (!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN) {
++ DEBUG("%s, bogus device state\n", __FUNCTION__);
++ return -ESHUTDOWN;
++ }
++
++ max = le16_to_cpu(desc->wMaxPacketSize);
++
++ spin_lock_irqsave(&ep->dev->lock, flags);
++
++ /* Configure the endpoint */
++ jz_udc_select_ep(ep);
++ if (ep_is_in(ep)) {
++ usb_writew(dev, JZ_REG_UDC_INMAXP, max);
++ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
++ case USB_ENDPOINT_XFER_BULK:
++ case USB_ENDPOINT_XFER_INT:
++ csrh &= ~USB_INCSRH_ISO;
++ break;
++ case USB_ENDPOINT_XFER_ISOC:
++ csrh |= USB_INCSRH_ISO;
++ break;
++ }
++ usb_writeb(dev, JZ_REG_UDC_INCSRH, csrh);
++ }
++ else {
++ usb_writew(dev, JZ_REG_UDC_OUTMAXP, max);
++ switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
++ case USB_ENDPOINT_XFER_BULK:
++ csrh &= ~USB_OUTCSRH_ISO;
++ break;
++ case USB_ENDPOINT_XFER_INT:
++ csrh &= ~USB_OUTCSRH_ISO;
++ csrh |= USB_OUTCSRH_DNYT;
++ break;
++ case USB_ENDPOINT_XFER_ISOC:
++ csrh |= USB_OUTCSRH_ISO;
++ break;
++ }
++ usb_writeb(dev, JZ_REG_UDC_OUTCSRH, csrh);
++ }
++
++
++ ep->stopped = 0;
++ ep->desc = desc;
++ ep->ep.maxpacket = max;
++
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++
++ /* Reset halt state (does flush) */
++ jz4740_set_halt(_ep, 0);
++
++ DEBUG("%s: enabled %s\n", __FUNCTION__, _ep->name);
++
++ return 0;
++}
++
++/** Disable EP
++ * NOTE: Sets INDEX register
++ */
++static int jz4740_ep_disable(struct usb_ep *_ep)
++{
++ struct jz4740_ep *ep;
++ unsigned long flags;
++
++ DEBUG("%s, %p\n", __FUNCTION__, _ep);
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (!_ep || !ep->desc) {
++ DEBUG("%s, %s not enabled\n", __FUNCTION__,
++ _ep ? ep->ep.name : NULL);
++ return -EINVAL;
++ }
++
++ spin_lock_irqsave(&ep->dev->lock, flags);
++
++ jz_udc_select_ep(ep);
++
++ /* Nuke all pending requests (does flush) */
++ nuke(ep, -ESHUTDOWN);
++
++ /* Disable ep IRQ */
++ pio_irq_disable(ep);
++
++ ep->desc = 0;
++ ep->stopped = 1;
++
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++
++ DEBUG("%s: disabled %s\n", __FUNCTION__, _ep->name);
++ return 0;
++}
++
++static struct usb_request *jz4740_alloc_request(struct usb_ep *ep, gfp_t gfp_flags)
++{
++ struct jz4740_request *req;
++
++ req = kzalloc(sizeof(*req), gfp_flags);
++ if (!req)
++ return NULL;
++
++ INIT_LIST_HEAD(&req->queue);
++
++ return &req->req;
++}
++
++static void jz4740_free_request(struct usb_ep *ep, struct usb_request *_req)
++{
++ struct jz4740_request *req;
++
++ req = container_of(_req, struct jz4740_request, req);
++ WARN_ON(!list_empty(&req->queue));
++
++ kfree(req);
++}
++
++/*--------------------------------------------------------------------*/
++
++/** Queue one request
++ * Kickstart transfer if needed
++ * NOTE: Sets INDEX register
++ */
++static int jz4740_queue(struct usb_ep *_ep, struct usb_request *_req,
++ gfp_t gfp_flags)
++{
++ struct jz4740_request *req;
++ struct jz4740_ep *ep;
++ struct jz4740_udc *dev;
++
++ DEBUG("%s, %p\n", __FUNCTION__, _ep);
++
++ req = container_of(_req, struct jz4740_request, req);
++ if (unlikely
++ (!_req || !_req->complete || !_req->buf
++ || !list_empty(&req->queue))) {
++ DEBUG("%s, bad params\n", __FUNCTION__);
++ return -EINVAL;
++ }
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (unlikely(!_ep || (!ep->desc && ep->type != ep_control))) {
++ DEBUG("%s, bad ep\n", __FUNCTION__);
++ return -EINVAL;
++ }
++
++ dev = ep->dev;
++ if (unlikely(!dev->driver || dev->gadget.speed == USB_SPEED_UNKNOWN)) {
++ DEBUG("%s, bogus device state %p\n", __FUNCTION__, dev->driver);
++ return -ESHUTDOWN;
++ }
++
++ DEBUG("%s queue req %p, len %d buf %p\n", _ep->name, _req, _req->length,
++ _req->buf);
++
++ spin_lock_irqsave(&dev->lock, dev->lock_flags);
++
++ _req->status = -EINPROGRESS;
++ _req->actual = 0;
++
++ /* kickstart this i/o queue? */
++ DEBUG("Add to %d Q %d %d\n", ep_index(ep), list_empty(&ep->queue),
++ ep->stopped);
++ if (list_empty(&ep->queue) && likely(!ep->stopped)) {
++ uint32_t csr;
++
++ if (unlikely(ep_index(ep) == 0)) {
++ /* EP0 */
++ list_add_tail(&req->queue, &ep->queue);
++ jz4740_ep0_kick(dev, ep);
++ req = 0;
++ }
++ else if (ep_is_in(ep)) {
++ /* EP1 & EP2 */
++ jz_udc_select_ep(ep);
++ csr = usb_readb(dev, ep->csr);
++ pio_irq_enable(ep);
++ if (!(csr & USB_INCSR_FFNOTEMPT)) {
++ if (write_fifo(ep, req) == 1)
++ req = 0;
++ }
++ } else {
++ /* EP1 */
++ jz_udc_select_ep(ep);
++ csr = usb_readb(dev, ep->csr);
++ pio_irq_enable(ep);
++ if (csr & USB_OUTCSR_OUTPKTRDY) {
++ if (read_fifo(ep, req) == 1)
++ req = 0;
++ }
++ }
++ }
++
++ /* pio or dma irq handler advances the queue. */
++ if (likely(req != 0))
++ list_add_tail(&req->queue, &ep->queue);
++
++ spin_unlock_irqrestore(&dev->lock, dev->lock_flags);
++
++ return 0;
++}
++
++/* dequeue JUST ONE request */
++static int jz4740_dequeue(struct usb_ep *_ep, struct usb_request *_req)
++{
++ struct jz4740_ep *ep;
++ struct jz4740_request *req;
++ unsigned long flags;
++
++ DEBUG("%s, %p\n", __FUNCTION__, _ep);
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (!_ep || ep->type == ep_control)
++ return -EINVAL;
++
++ spin_lock_irqsave(&ep->dev->lock, flags);
++
++ /* make sure it's actually queued on this endpoint */
++ list_for_each_entry(req, &ep->queue, queue) {
++ if (&req->req == _req)
++ break;
++ }
++ if (&req->req != _req) {
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++ return -EINVAL;
++ }
++ done(ep, req, -ECONNRESET);
++
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++ return 0;
++}
++
++/** Return bytes in EP FIFO
++ * NOTE: Sets INDEX register to EP
++ */
++static int jz4740_fifo_status(struct usb_ep *_ep)
++{
++ uint32_t csr;
++ int count = 0;
++ struct jz4740_ep *ep;
++ unsigned long flags;
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (!_ep) {
++ DEBUG("%s, bad ep\n", __FUNCTION__);
++ return -ENODEV;
++ }
++
++ DEBUG("%s, %d\n", __FUNCTION__, ep_index(ep));
++
++ /* LPD can't report unclaimed bytes from IN fifos */
++ if (ep_is_in(ep))
++ return -EOPNOTSUPP;
++
++ spin_lock_irqsave(&ep->dev->lock, flags);
++ jz_udc_select_ep(ep);
++
++ csr = usb_readb(ep->dev, ep->csr);
++ if (ep->dev->gadget.speed != USB_SPEED_UNKNOWN ||
++ csr & 0x1) {
++ count = usb_readw(ep->dev, JZ_REG_UDC_OUTCOUNT);
++ }
++
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++
++ return count;
++}
++
++/** Flush EP FIFO
++ * NOTE: Sets INDEX register to EP
++ */
++static void jz4740_fifo_flush(struct usb_ep *_ep)
++{
++ struct jz4740_ep *ep;
++ unsigned long flags;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ ep = container_of(_ep, struct jz4740_ep, ep);
++ if (unlikely(!_ep || (!ep->desc && ep->type == ep_control))) {
++ DEBUG("%s, bad ep\n", __FUNCTION__);
++ return;
++ }
++
++ spin_lock_irqsave(&ep->dev->lock, flags);
++
++ jz_udc_select_ep(ep);
++ flush(ep);
++
++ spin_unlock_irqrestore(&ep->dev->lock, flags);
++}
++
++/****************************************************************/
++/* End Point 0 related functions */
++/****************************************************************/
++
++/* return: 0 = still running, 1 = completed, negative = errno */
++static int write_fifo_ep0(struct jz4740_ep *ep, struct jz4740_request *req)
++{
++ uint32_t max;
++ unsigned count;
++ int is_last;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++ max = ep_maxpacket(ep);
++
++ count = write_packet(ep, req, max);
++
++ /* last packet is usually short (or a zlp) */
++ if (unlikely(count != max))
++ is_last = 1;
++ else {
++ if (likely(req->req.length != req->req.actual) || req->req.zero)
++ is_last = 0;
++ else
++ is_last = 1;
++ }
++
++ DEBUG_EP0("%s: wrote %s %d bytes%s %d left %p\n", __FUNCTION__,
++ ep->ep.name, count,
++ is_last ? "/L" : "", req->req.length - req->req.actual, req);
++
++ /* requests complete when all IN data is in the FIFO */
++ if (is_last) {
++ done(ep, req, 0);
++ return 1;
++ }
++
++ return 0;
++}
++
++static inline int jz4740_fifo_read(struct jz4740_ep *ep,
++ unsigned char *cp, int max)
++{
++ int bytes;
++ int count = usb_readw(ep->dev, JZ_REG_UDC_OUTCOUNT);
++
++ if (count > max)
++ count = max;
++ bytes = count;
++ while (count--)
++ *cp++ = usb_readb(ep->dev, ep->fifo);
++
++ return bytes;
++}
++
++static inline void jz4740_fifo_write(struct jz4740_ep *ep,
++ unsigned char *cp, int count)
++{
++ DEBUG("fifo_write: %d %d\n", ep_index(ep), count);
++ while (count--)
++ usb_writeb(ep->dev, ep->fifo, *cp++);
++}
++
++static int read_fifo_ep0(struct jz4740_ep *ep, struct jz4740_request *req)
++{
++ struct jz4740_udc *dev = ep->dev;
++ uint32_t csr;
++ uint8_t *buf;
++ unsigned bufferspace, count, is_short;
++
++ DEBUG_EP0("%s\n", __FUNCTION__);
++
++ csr = usb_readb(dev, JZ_REG_UDC_CSR0);
++ if (!(csr & USB_CSR0_OUTPKTRDY))
++ return 0;
++
++ buf = req->req.buf + req->req.actual;
++ prefetchw(buf);
++ bufferspace = req->req.length - req->req.actual;
++
++ /* read all bytes from this packet */
++ if (likely(csr & USB_CSR0_OUTPKTRDY)) {
++ count = usb_readw(dev, JZ_REG_UDC_OUTCOUNT);
++ req->req.actual += min(count, bufferspace);
++ } else /* zlp */
++ count = 0;
++
++ is_short = (count < ep->ep.maxpacket);
++ DEBUG_EP0("read %s %02x, %d bytes%s req %p %d/%d\n",
++ ep->ep.name, csr, count,
++ is_short ? "/S" : "", req, req->req.actual, req->req.length);
++
++ while (likely(count-- != 0)) {
++ uint8_t byte = (uint8_t)usb_readl(dev, ep->fifo);
++
++ if (unlikely(bufferspace == 0)) {
++ /* this happens when the driver's buffer
++ * is smaller than what the host sent.
++ * discard the extra data.
++ */
++ if (req->req.status != -EOVERFLOW)
++ DEBUG_EP0("%s overflow %d\n", ep->ep.name,
++ count);
++ req->req.status = -EOVERFLOW;
++ } else {
++ *buf++ = byte;
++ bufferspace--;
++ }
++ }
++
++ /* completion */
++ if (is_short || req->req.actual == req->req.length) {
++ done(ep, req, 0);
++ return 1;
++ }
++
++ /* finished that packet. the next one may be waiting... */
++ return 0;
++}
++
++/**
++ * udc_set_address - set the USB address for this device
++ * @address:
++ *
++ * Called from control endpoint function after it decodes a set address setup packet.
++ */
++static void udc_set_address(struct jz4740_udc *dev, unsigned char address)
++{
++ DEBUG_EP0("%s: %d\n", __FUNCTION__, address);
++
++ usb_writeb(dev, JZ_REG_UDC_FADDR, address);
++}
++
++/*
++ * DATA_STATE_RECV (USB_CSR0_OUTPKTRDY)
++ * - if error
++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL bits
++ * - else
++ * set USB_CSR0_SVDOUTPKTRDY bit
++ if last set USB_CSR0_DATAEND bit
++ */
++static void jz4740_ep0_out(struct jz4740_udc *dev, uint32_t csr, int kickstart)
++{
++ struct jz4740_request *req;
++ struct jz4740_ep *ep = &dev->ep[0];
++ int ret;
++
++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr);
++
++ if (list_empty(&ep->queue))
++ req = 0;
++ else
++ req = list_entry(ep->queue.next, struct jz4740_request, queue);
++
++ if (req) {
++ if (req->req.length == 0) {
++ DEBUG_EP0("ZERO LENGTH OUT!\n");
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));
++ dev->ep0state = WAIT_FOR_SETUP;
++ return;
++ } else if (kickstart) {
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY));
++ return;
++ }
++ ret = read_fifo_ep0(ep, req);
++ if (ret) {
++ /* Done! */
++ DEBUG_EP0("%s: finished, waiting for status\n",
++ __FUNCTION__);
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));
++ dev->ep0state = WAIT_FOR_SETUP;
++ } else {
++ /* Not done yet.. */
++ DEBUG_EP0("%s: not finished\n", __FUNCTION__);
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY);
++ }
++ } else {
++ DEBUG_EP0("NO REQ??!\n");
++ }
++}
++
++/*
++ * DATA_STATE_XMIT
++ */
++static int jz4740_ep0_in(struct jz4740_udc *dev, uint32_t csr)
++{
++ struct jz4740_request *req;
++ struct jz4740_ep *ep = &dev->ep[0];
++ int ret, need_zlp = 0;
++
++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr);
++
++ if (list_empty(&ep->queue))
++ req = 0;
++ else
++ req = list_entry(ep->queue.next, struct jz4740_request, queue);
++
++ if (!req) {
++ DEBUG_EP0("%s: NULL REQ\n", __FUNCTION__);
++ return 0;
++ }
++
++ if (req->req.length == 0) {
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND));
++ dev->ep0state = WAIT_FOR_SETUP;
++ return 1;
++ }
++
++ if (req->req.length - req->req.actual == EP0_MAXPACKETSIZE) {
++ /* Next write will end with the packet size, */
++ /* so we need zero-length-packet */
++ need_zlp = 1;
++ }
++
++ ret = write_fifo_ep0(ep, req);
++
++ if (ret == 1 && !need_zlp) {
++ /* Last packet */
++ DEBUG_EP0("%s: finished, waiting for status\n", __FUNCTION__);
++
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND));
++ dev->ep0state = WAIT_FOR_SETUP;
++ } else {
++ DEBUG_EP0("%s: not finished\n", __FUNCTION__);
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_INPKTRDY);
++ }
++
++ if (need_zlp) {
++ DEBUG_EP0("%s: Need ZLP!\n", __FUNCTION__);
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_INPKTRDY);
++ dev->ep0state = DATA_STATE_NEED_ZLP;
++ }
++
++ return 1;
++}
++
++static int jz4740_handle_get_status(struct jz4740_udc *dev,
++ struct usb_ctrlrequest *ctrl)
++{
++ struct jz4740_ep *ep0 = &dev->ep[0];
++ struct jz4740_ep *qep;
++ int reqtype = (ctrl->bRequestType & USB_RECIP_MASK);
++ uint16_t val = 0;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++
++ if (reqtype == USB_RECIP_INTERFACE) {
++ /* This is not supported.
++ * And according to the USB spec, this one does nothing..
++ * Just return 0
++ */
++ DEBUG_SETUP("GET_STATUS: USB_RECIP_INTERFACE\n");
++ } else if (reqtype == USB_RECIP_DEVICE) {
++ DEBUG_SETUP("GET_STATUS: USB_RECIP_DEVICE\n");
++ val |= (1 << 0); /* Self powered */
++ /*val |= (1<<1); *//* Remote wakeup */
++ } else if (reqtype == USB_RECIP_ENDPOINT) {
++ int ep_num = (ctrl->wIndex & ~USB_DIR_IN);
++
++ DEBUG_SETUP
++ ("GET_STATUS: USB_RECIP_ENDPOINT (%d), ctrl->wLength = %d\n",
++ ep_num, ctrl->wLength);
++
++ if (ctrl->wLength > 2 || ep_num > 3)
++ return -EOPNOTSUPP;
++
++ qep = &dev->ep[ep_num];
++ if (ep_is_in(qep) != ((ctrl->wIndex & USB_DIR_IN) ? 1 : 0)
++ && ep_index(qep) != 0) {
++ return -EOPNOTSUPP;
++ }
++
++ jz_udc_select_ep(qep);
++
++ /* Return status on next IN token */
++ switch (qep->type) {
++ case ep_control:
++ val =
++ (usb_readb(dev, qep->csr) & USB_CSR0_SENDSTALL) ==
++ USB_CSR0_SENDSTALL;
++ break;
++ case ep_bulk_in:
++ case ep_interrupt:
++ val =
++ (usb_readb(dev, qep->csr) & USB_INCSR_SENDSTALL) ==
++ USB_INCSR_SENDSTALL;
++ break;
++ case ep_bulk_out:
++ val =
++ (usb_readb(dev, qep->csr) & USB_OUTCSR_SENDSTALL) ==
++ USB_OUTCSR_SENDSTALL;
++ break;
++ }
++
++ /* Back to EP0 index */
++ jz_udc_set_index(dev, 0);
++
++ DEBUG_SETUP("GET_STATUS, ep: %d (%x), val = %d\n", ep_num,
++ ctrl->wIndex, val);
++ } else {
++ DEBUG_SETUP("Unknown REQ TYPE: %d\n", reqtype);
++ return -EOPNOTSUPP;
++ }
++
++ /* Clear "out packet ready" */
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY);
++ /* Put status to FIFO */
++ jz4740_fifo_write(ep0, (uint8_t *)&val, sizeof(val));
++ /* Issue "In packet ready" */
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND));
++
++ return 0;
++}
++
++/*
++ * WAIT_FOR_SETUP (OUTPKTRDY)
++ * - read data packet from EP0 FIFO
++ * - decode command
++ * - if error
++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL bits
++ * - else
++ * set USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND bits
++ */
++static void jz4740_ep0_setup(struct jz4740_udc *dev, uint32_t csr)
++{
++ struct jz4740_ep *ep = &dev->ep[0];
++ struct usb_ctrlrequest ctrl;
++ int i;
++
++ DEBUG_SETUP("%s: %x\n", __FUNCTION__, csr);
++
++ /* Nuke all previous transfers */
++ nuke(ep, -EPROTO);
++
++ /* read control req from fifo (8 bytes) */
++ jz4740_fifo_read(ep, (unsigned char *)&ctrl, 8);
++
++ DEBUG_SETUP("SETUP %02x.%02x v%04x i%04x l%04x\n",
++ ctrl.bRequestType, ctrl.bRequest,
++ ctrl.wValue, ctrl.wIndex, ctrl.wLength);
++
++ /* Set direction of EP0 */
++ if (likely(ctrl.bRequestType & USB_DIR_IN)) {
++ ep->bEndpointAddress |= USB_DIR_IN;
++ } else {
++ ep->bEndpointAddress &= ~USB_DIR_IN;
++ }
++
++ /* Handle some SETUP packets ourselves */
++ switch (ctrl.bRequest) {
++ case USB_REQ_SET_ADDRESS:
++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE))
++ break;
++
++ DEBUG_SETUP("USB_REQ_SET_ADDRESS (%d)\n", ctrl.wValue);
++ udc_set_address(dev, ctrl.wValue);
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));
++ return;
++
++ case USB_REQ_SET_CONFIGURATION:
++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE))
++ break;
++
++ DEBUG_SETUP("USB_REQ_SET_CONFIGURATION (%d)\n", ctrl.wValue);
++/* usb_setb(JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));*/
++
++ /* Enable RESUME and SUSPEND interrupts */
++ usb_setb(dev, JZ_REG_UDC_INTRUSBE, (USB_INTR_RESUME | USB_INTR_SUSPEND));
++ break;
++
++ case USB_REQ_SET_INTERFACE:
++ if (ctrl.bRequestType != (USB_TYPE_STANDARD | USB_RECIP_DEVICE))
++ break;
++
++ DEBUG_SETUP("USB_REQ_SET_INTERFACE (%d)\n", ctrl.wValue);
++/* usb_setb(JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));*/
++ break;
++
++ case USB_REQ_GET_STATUS:
++ if (jz4740_handle_get_status(dev, &ctrl) == 0)
++ return;
++
++ case USB_REQ_CLEAR_FEATURE:
++ case USB_REQ_SET_FEATURE:
++ if (ctrl.bRequestType == USB_RECIP_ENDPOINT) {
++ struct jz4740_ep *qep;
++ int ep_num = (ctrl.wIndex & 0x0f);
++
++ /* Support only HALT feature */
++ if (ctrl.wValue != 0 || ctrl.wLength != 0
++ || ep_num > 3 || ep_num < 1)
++ break;
++
++ qep = &dev->ep[ep_num];
++ spin_unlock(&dev->lock);
++ if (ctrl.bRequest == USB_REQ_SET_FEATURE) {
++ DEBUG_SETUP("SET_FEATURE (%d)\n",
++ ep_num);
++ jz4740_set_halt(&qep->ep, 1);
++ } else {
++ DEBUG_SETUP("CLR_FEATURE (%d)\n",
++ ep_num);
++ jz4740_set_halt(&qep->ep, 0);
++ }
++ spin_lock(&dev->lock);
++
++ jz_udc_set_index(dev, 0);
++
++ /* Reply with a ZLP on next IN token */
++ usb_setb(dev, JZ_REG_UDC_CSR0,
++ (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND));
++ return;
++ }
++ break;
++
++ default:
++ break;
++ }
++
++ /* gadget drivers see class/vendor specific requests,
++ * {SET,GET}_{INTERFACE,DESCRIPTOR,CONFIGURATION},
++ * and more.
++ */
++ if (dev->driver) {
++ /* device-2-host (IN) or no data setup command, process immediately */
++ spin_unlock(&dev->lock);
++
++ i = dev->driver->setup(&dev->gadget, &ctrl);
++ spin_lock(&dev->lock);
++
++ if (unlikely(i < 0)) {
++ /* setup processing failed, force stall */
++ DEBUG_SETUP
++ (" --> ERROR: gadget setup FAILED (stalling), setup returned %d\n",
++ i);
++ jz_udc_set_index(dev, 0);
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_SVDOUTPKTRDY | USB_CSR0_DATAEND | USB_CSR0_SENDSTALL));
++
++ /* ep->stopped = 1; */
++ dev->ep0state = WAIT_FOR_SETUP;
++ }
++ else {
++ DEBUG_SETUP("gadget driver setup ok (%d)\n", ctrl.wLength);
++/* if (!ctrl.wLength) {
++ usb_setb(JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY);
++ }*/
++ }
++ }
++}
++
++/*
++ * DATA_STATE_NEED_ZLP
++ */
++static void jz4740_ep0_in_zlp(struct jz4740_udc *dev, uint32_t csr)
++{
++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr);
++
++ usb_setb(dev, JZ_REG_UDC_CSR0, (USB_CSR0_INPKTRDY | USB_CSR0_DATAEND));
++ dev->ep0state = WAIT_FOR_SETUP;
++}
++
++/*
++ * handle ep0 interrupt
++ */
++static void jz4740_handle_ep0(struct jz4740_udc *dev, uint32_t intr)
++{
++ struct jz4740_ep *ep = &dev->ep[0];
++ uint32_t csr;
++
++ DEBUG("%s:%s[%d]\n", __FILE__, __func__, __LINE__);
++ /* Set index 0 */
++ jz_udc_set_index(dev, 0);
++ csr = usb_readb(dev, JZ_REG_UDC_CSR0);
++
++ DEBUG_EP0("%s: csr = %x state = \n", __FUNCTION__, csr);//, state_names[dev->ep0state]);
++
++ /*
++ * if SENT_STALL is set
++ * - clear the SENT_STALL bit
++ */
++ if (csr & USB_CSR0_SENTSTALL) {
++ DEBUG_EP0("%s: USB_CSR0_SENTSTALL is set: %x\n", __FUNCTION__, csr);
++ usb_clearb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SENDSTALL | USB_CSR0_SENTSTALL);
++ nuke(ep, -ECONNABORTED);
++ dev->ep0state = WAIT_FOR_SETUP;
++ return;
++ }
++
++ /*
++ * if a transfer is in progress && INPKTRDY and OUTPKTRDY are clear
++ * - fill EP0 FIFO
++ * - if last packet
++ * - set IN_PKT_RDY | DATA_END
++ * - else
++ * set IN_PKT_RDY
++ */
++ if (!(csr & (USB_CSR0_INPKTRDY | USB_CSR0_OUTPKTRDY))) {
++ DEBUG_EP0("%s: INPKTRDY and OUTPKTRDY are clear\n",
++ __FUNCTION__);
++
++ switch (dev->ep0state) {
++ case DATA_STATE_XMIT:
++ DEBUG_EP0("continue with DATA_STATE_XMIT\n");
++ jz4740_ep0_in(dev, csr);
++ return;
++ case DATA_STATE_NEED_ZLP:
++ DEBUG_EP0("continue with DATA_STATE_NEED_ZLP\n");
++ jz4740_ep0_in_zlp(dev, csr);
++ return;
++ default:
++ /* Stall? */
++// DEBUG_EP0("Odd state!! state = %s\n",
++// state_names[dev->ep0state]);
++ dev->ep0state = WAIT_FOR_SETUP;
++ /* nuke(ep, 0); */
++ /* usb_setb(ep->csr, USB_CSR0_SENDSTALL); */
++// break;
++ return;
++ }
++ }
++
++ /*
++ * if SETUPEND is set
++ * - abort the last transfer
++ * - set SERVICED_SETUP_END_BIT
++ */
++ if (csr & USB_CSR0_SETUPEND) {
++ DEBUG_EP0("%s: USB_CSR0_SETUPEND is set: %x\n", __FUNCTION__, csr);
++
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDSETUPEND);
++ nuke(ep, 0);
++ dev->ep0state = WAIT_FOR_SETUP;
++ }
++
++ /*
++ * if USB_CSR0_OUTPKTRDY is set
++ * - read data packet from EP0 FIFO
++ * - decode command
++ * - if error
++ * set SVDOUTPKTRDY | DATAEND | SENDSTALL bits
++ * - else
++ * set SVDOUTPKTRDY | DATAEND bits
++ */
++ if (csr & USB_CSR0_OUTPKTRDY) {
++
++ DEBUG_EP0("%s: EP0_OUT_PKT_RDY is set: %x\n", __FUNCTION__,
++ csr);
++
++ switch (dev->ep0state) {
++ case WAIT_FOR_SETUP:
++ DEBUG_EP0("WAIT_FOR_SETUP\n");
++ jz4740_ep0_setup(dev, csr);
++ break;
++
++ case DATA_STATE_RECV:
++ DEBUG_EP0("DATA_STATE_RECV\n");
++ jz4740_ep0_out(dev, csr, 0);
++ break;
++
++ default:
++ /* send stall? */
++ DEBUG_EP0("strange state!! 2. send stall? state = %d\n",
++ dev->ep0state);
++ break;
++ }
++ }
++}
++
++static void jz4740_ep0_kick(struct jz4740_udc *dev, struct jz4740_ep *ep)
++{
++ uint32_t csr;
++
++ jz_udc_set_index(dev, 0);
++
++ DEBUG_EP0("%s: %x\n", __FUNCTION__, csr);
++
++ /* Clear "out packet ready" */
++
++ if (ep_is_in(ep)) {
++ usb_setb(dev, JZ_REG_UDC_CSR0, USB_CSR0_SVDOUTPKTRDY);
++ csr = usb_readb(dev, JZ_REG_UDC_CSR0);
++ dev->ep0state = DATA_STATE_XMIT;
++ jz4740_ep0_in(dev, csr);
++ } else {
++ csr = usb_readb(dev, JZ_REG_UDC_CSR0);
++ dev->ep0state = DATA_STATE_RECV;
++ jz4740_ep0_out(dev, csr, 1);
++ }
++}
++
++/** Handle USB RESET interrupt
++ */
++static void jz4740_reset_irq(struct jz4740_udc *dev)
++{
++ dev->gadget.speed = (usb_readb(dev, JZ_REG_UDC_POWER) & USB_POWER_HSMODE) ?
++ USB_SPEED_HIGH : USB_SPEED_FULL;
++
++ DEBUG_SETUP("%s: address = %d, speed = %s\n", __FUNCTION__, 0,
++ (dev->gadget.speed == USB_SPEED_HIGH) ? "HIGH":"FULL" );
++}
++
++/*
++ * jz4740 usb device interrupt handler.
++ */
++static irqreturn_t jz4740_udc_irq(int irq, void *devid)
++{
++ struct jz4740_udc *jz4740_udc = devid;
++ uint8_t index;
++
++ uint32_t intr_usb = usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSB) & 0x7; /* mask SOF */
++ uint32_t intr_in = usb_readw(jz4740_udc, JZ_REG_UDC_INTRIN);
++ uint32_t intr_out = usb_readw(jz4740_udc, JZ_REG_UDC_INTROUT);
++ uint32_t intr_dma = usb_readb(jz4740_udc, JZ_REG_UDC_INTR);
++
++ if (!intr_usb && !intr_in && !intr_out && !intr_dma)
++ return IRQ_HANDLED;
++
++
++ DEBUG("intr_out=%x intr_in=%x intr_usb=%x\n",
++ intr_out, intr_in, intr_usb);
++
++ spin_lock(&jz4740_udc->lock);
++ index = usb_readb(jz4740_udc, JZ_REG_UDC_INDEX);
++
++ /* Check for resume from suspend mode */
++ if ((intr_usb & USB_INTR_RESUME) &&
++ (usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSBE) & USB_INTR_RESUME)) {
++ DEBUG("USB resume\n");
++ jz4740_udc->driver->resume(&jz4740_udc->gadget); /* We have suspend(), so we must have resume() too. */
++ }
++
++ /* Check for system interrupts */
++ if (intr_usb & USB_INTR_RESET) {
++ DEBUG("USB reset\n");
++ jz4740_reset_irq(jz4740_udc);
++ }
++
++ /* Check for endpoint 0 interrupt */
++ if (intr_in & USB_INTR_EP0) {
++ DEBUG("USB_INTR_EP0 (control)\n");
++ jz4740_handle_ep0(jz4740_udc, intr_in);
++ }
++
++ /* Check for Bulk-IN DMA interrupt */
++ if (intr_dma & 0x1) {
++ int ep_num;
++ struct jz4740_ep *ep;
++ ep_num = (usb_readl(jz4740_udc, JZ_REG_UDC_CNTL1) >> 4) & 0xf;
++ ep = &jz4740_udc->ep[ep_num + 1];
++ jz_udc_select_ep(ep);
++ usb_setb(jz4740_udc, ep->csr, USB_INCSR_INPKTRDY);
++/* jz4740_in_epn(jz4740_udc, ep_num, intr_in);*/
++ }
++
++ /* Check for Bulk-OUT DMA interrupt */
++ if (intr_dma & 0x2) {
++ int ep_num;
++ ep_num = (usb_readl(jz4740_udc, JZ_REG_UDC_CNTL2) >> 4) & 0xf;
++ jz4740_out_epn(jz4740_udc, ep_num, intr_out);
++ }
++
++ /* Check for each configured endpoint interrupt */
++ if (intr_in & USB_INTR_INEP1) {
++ DEBUG("USB_INTR_INEP1\n");
++ jz4740_in_epn(jz4740_udc, 1, intr_in);
++ }
++
++ if (intr_in & USB_INTR_INEP2) {
++ DEBUG("USB_INTR_INEP2\n");
++ jz4740_in_epn(jz4740_udc, 2, intr_in);
++ }
++
++ if (intr_out & USB_INTR_OUTEP1) {
++ DEBUG("USB_INTR_OUTEP1\n");
++ jz4740_out_epn(jz4740_udc, 1, intr_out);
++ }
++
++ /* Check for suspend mode */
++ if ((intr_usb & USB_INTR_SUSPEND) &&
++ (usb_readb(jz4740_udc, JZ_REG_UDC_INTRUSBE) & USB_INTR_SUSPEND)) {
++ DEBUG("USB suspend\n");
++ jz4740_udc->driver->suspend(&jz4740_udc->gadget);
++ /* Host unloaded from us, can do something, such as flushing
++ the NAND block cache etc. */
++ }
++
++ jz_udc_set_index(jz4740_udc, index);
++
++ spin_unlock(&jz4740_udc->lock);
++
++ return IRQ_HANDLED;
++}
++
++
++
++/*-------------------------------------------------------------------------*/
++
++
++static inline struct jz4740_udc *gadget_to_udc(struct usb_gadget *gadget)
++{
++ return container_of(gadget, struct jz4740_udc, gadget);
++}
++
++static int jz4740_udc_get_frame(struct usb_gadget *_gadget)
++{
++ DEBUG("%s, %p\n", __FUNCTION__, _gadget);
++ return usb_readw(gadget_to_udc(_gadget), JZ_REG_UDC_FRAME);
++}
++
++static int jz4740_udc_wakeup(struct usb_gadget *_gadget)
++{
++ /* host may not have enabled remote wakeup */
++ /*if ((UDCCS0 & UDCCS0_DRWF) == 0)
++ return -EHOSTUNREACH;
++ udc_set_mask_UDCCR(UDCCR_RSM); */
++ return -ENOTSUPP;
++}
++
++static int jz4740_udc_pullup(struct usb_gadget *_gadget, int on)
++{
++ struct jz4740_udc *udc = gadget_to_udc(_gadget);
++ unsigned long flags;
++
++ local_irq_save(flags);
++
++ if (on) {
++ udc->state = UDC_STATE_ENABLE;
++ udc_enable(udc);
++ } else {
++ udc->state = UDC_STATE_DISABLE;
++ udc_disable(udc);
++ }
++
++ local_irq_restore(flags);
++
++ return 0;
++}
++
++
++static const struct usb_gadget_ops jz4740_udc_ops = {
++ .get_frame = jz4740_udc_get_frame,
++ .wakeup = jz4740_udc_wakeup,
++ .pullup = jz4740_udc_pullup,
++ .start = jz4740_udc_start,
++ .stop = jz4740_udc_stop,
++};
++
++static struct usb_ep_ops jz4740_ep_ops = {
++ .enable = jz4740_ep_enable,
++ .disable = jz4740_ep_disable,
++
++ .alloc_request = jz4740_alloc_request,
++ .free_request = jz4740_free_request,
++
++ .queue = jz4740_queue,
++ .dequeue = jz4740_dequeue,
++
++ .set_halt = jz4740_set_halt,
++ .fifo_status = jz4740_fifo_status,
++ .fifo_flush = jz4740_fifo_flush,
++};
++
++
++/*-------------------------------------------------------------------------*/
++
++static struct jz4740_udc jz4740_udc_controller = {
++ .gadget = {
++ .ops = &jz4740_udc_ops,
++ .ep0 = &jz4740_udc_controller.ep[0].ep,
++ .name = "jz4740-udc",
++ .dev = {
++ .init_name = "gadget",
++ },
++ },
++
++ /* control endpoint */
++ .ep[0] = {
++ .ep = {
++ .name = "ep0",
++ .ops = &jz4740_ep_ops,
++ .maxpacket = EP0_MAXPACKETSIZE,
++ },
++ .dev = &jz4740_udc_controller,
++
++ .bEndpointAddress = 0,
++ .bmAttributes = 0,
++
++ .type = ep_control,
++ .fifo = JZ_REG_UDC_EP_FIFO(0),
++ .csr = JZ_REG_UDC_CSR0,
++ },
++
++ /* bulk out endpoint */
++ .ep[1] = {
++ .ep = {
++ .name = "ep1out-bulk",
++ .ops = &jz4740_ep_ops,
++ .maxpacket = EPBULK_MAXPACKETSIZE,
++ },
++ .dev = &jz4740_udc_controller,
++
++ .bEndpointAddress = 1,
++ .bmAttributes = USB_ENDPOINT_XFER_BULK,
++
++ .type = ep_bulk_out,
++ .fifo = JZ_REG_UDC_EP_FIFO(1),
++ .csr = JZ_REG_UDC_OUTCSR,
++ },
++
++ /* bulk in endpoint */
++ .ep[2] = {
++ .ep = {
++ .name = "ep1in-bulk",
++ .ops = &jz4740_ep_ops,
++ .maxpacket = EPBULK_MAXPACKETSIZE,
++ },
++ .dev = &jz4740_udc_controller,
++
++ .bEndpointAddress = 1 | USB_DIR_IN,
++ .bmAttributes = USB_ENDPOINT_XFER_BULK,
++
++ .type = ep_bulk_in,
++ .fifo = JZ_REG_UDC_EP_FIFO(1),
++ .csr = JZ_REG_UDC_INCSR,
++ },
++
++ /* interrupt in endpoint */
++ .ep[3] = {
++ .ep = {
++ .name = "ep2in-int",
++ .ops = &jz4740_ep_ops,
++ .maxpacket = EPINTR_MAXPACKETSIZE,
++ },
++ .dev = &jz4740_udc_controller,
++
++ .bEndpointAddress = 2 | USB_DIR_IN,
++ .bmAttributes = USB_ENDPOINT_XFER_INT,
++
++ .type = ep_interrupt,
++ .fifo = JZ_REG_UDC_EP_FIFO(2),
++ .csr = JZ_REG_UDC_INCSR,
++ },
++};
++
++static int __devinit jz4740_udc_probe(struct platform_device *pdev)
++{
++ struct jz4740_udc *jz4740_udc = &jz4740_udc_controller;
++ int ret;
++
++ spin_lock_init(&jz4740_udc->lock);
++
++ jz4740_udc->dev = &pdev->dev;
++ jz4740_udc->gadget.dev.parent = &pdev->dev;
++ jz4740_udc->gadget.dev.dma_mask = pdev->dev.dma_mask;
++
++ ret = device_register(&jz4740_udc->gadget.dev);
++ if (ret)
++ return ret;
++
++ jz4740_udc->clk = clk_get(&pdev->dev, "udc");
++ if (IS_ERR(jz4740_udc->clk)) {
++ ret = PTR_ERR(jz4740_udc->clk);
++ dev_err(&pdev->dev, "Failed to get udc clock: %d\n", ret);
++ goto err_device_unregister;
++ }
++
++ platform_set_drvdata(pdev, jz4740_udc);
++
++ jz4740_udc->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++
++ if (!jz4740_udc->mem) {
++ ret = -ENOENT;
++ dev_err(&pdev->dev, "Failed to get mmio memory resource\n");
++ goto err_clk_put;
++ }
++
++ jz4740_udc->mem = request_mem_region(jz4740_udc->mem->start,
++ resource_size(jz4740_udc->mem), pdev->name);
++
++ if (!jz4740_udc->mem) {
++ ret = -EBUSY;
++ dev_err(&pdev->dev, "Failed to request mmio memory region\n");
++ goto err_device_unregister;
++ }
++
++ jz4740_udc->base = ioremap(jz4740_udc->mem->start, resource_size(jz4740_udc->mem));
++
++ if (!jz4740_udc->base) {
++ ret = -EBUSY;
++ dev_err(&pdev->dev, "Failed to ioremap mmio memory\n");
++ goto err_release_mem_region;
++ }
++
++ jz4740_udc->irq = platform_get_irq(pdev, 0);
++ ret = request_irq(jz4740_udc->irq, jz4740_udc_irq, 0, pdev->name,
++ jz4740_udc);
++ if (ret) {
++ dev_err(&pdev->dev, "Failed to request irq: %d\n", ret);
++ goto err_iounmap;
++ }
++
++ ret = usb_add_gadget_udc(&pdev->dev, &jz4740_udc->gadget);
++ if (ret) {
++ dev_err(&pdev->dev, "Failed to add gadget: %d\n", ret);
++ goto err_free_irq;
++ }
++
++ udc_disable(jz4740_udc);
++ udc_reinit(jz4740_udc);
++
++ return 0;
++
++err_free_irq:
++ free_irq(jz4740_udc->irq, pdev);
++err_iounmap:
++ iounmap(jz4740_udc->base);
++err_release_mem_region:
++ release_mem_region(jz4740_udc->mem->start, resource_size(jz4740_udc->mem));
++err_clk_put:
++ clk_put(jz4740_udc->clk);
++err_device_unregister:
++ device_unregister(&jz4740_udc->gadget.dev);
++ platform_set_drvdata(pdev, NULL);
++
++ return ret;
++}
++
++static int __devexit jz4740_udc_remove(struct platform_device *pdev)
++{
++ struct jz4740_udc *dev = platform_get_drvdata(pdev);
++
++ usb_del_gadget_udc(&dev->gadget);
++ if (dev->driver)
++ return -EBUSY;
++
++ udc_disable(dev);
++
++ free_irq(dev->irq, dev);
++ iounmap(dev->base);
++ release_mem_region(dev->mem->start, resource_size(dev->mem));
++ clk_put(dev->clk);
++
++ platform_set_drvdata(pdev, NULL);
++ device_unregister(&dev->gadget.dev);
++
++ return 0;
++}
++
++#ifdef CONFIG_PM
++
++static int jz4740_udc_suspend(struct device *dev)
++{
++ struct jz4740_udc *jz4740_udc = dev_get_drvdata(dev);
++
++ if (jz4740_udc->state == UDC_STATE_ENABLE)
++ udc_disable(jz4740_udc);
++
++ return 0;
++}
++
++static int jz4740_udc_resume(struct device *dev)
++{
++ struct jz4740_udc *jz4740_udc = dev_get_drvdata(dev);
++
++ if (jz4740_udc->state == UDC_STATE_ENABLE)
++ udc_enable(jz4740_udc);
++
++ return 0;
++}
++
++static SIMPLE_DEV_PM_OPS(jz4740_udc_pm_ops, jz4740_udc_suspend, jz4740_udc_resume);
++#define JZ4740_UDC_PM_OPS (&jz4740_udc_pm_ops)
++
++#else
++#define JZ4740_UDC_PM_OPS NULL
++#endif
++
++static struct platform_driver udc_driver = {
++ .probe = jz4740_udc_probe,
++ .remove = __devexit_p(jz4740_udc_remove),
++ .driver = {
++ .name = "jz-udc",
++ .owner = THIS_MODULE,
++ .pm = JZ4740_UDC_PM_OPS,
++ },
++};
++
++/*-------------------------------------------------------------------------*/
++
++static int __init udc_init (void)
++{
++ return platform_driver_register(&udc_driver);
++}
++module_init(udc_init);
++
++static void __exit udc_exit (void)
++{
++ platform_driver_unregister(&udc_driver);
++}
++module_exit(udc_exit);
++
++MODULE_DESCRIPTION("JZ4740 USB Device Controller");
++MODULE_AUTHOR("Wei Jianli <jlwei@ingenic.cn>");
++MODULE_LICENSE("GPL");
+diff --git a/drivers/usb/gadget/jz4740_udc.h b/drivers/usb/gadget/jz4740_udc.h
+new file mode 100644
+index 0000000..53fd1da
+--- /dev/null
++++ b/drivers/usb/gadget/jz4740_udc.h
+@@ -0,0 +1,101 @@
++/*
++ * linux/drivers/usb/gadget/jz4740_udc.h
++ *
++ * Ingenic JZ4740 on-chip high speed USB device controller
++ *
++ * Copyright (C) 2006 Ingenic Semiconductor Inc.
++ * Author: <jlwei@ingenic.cn>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ */
++
++#ifndef __USB_GADGET_JZ4740_H__
++#define __USB_GADGET_JZ4740_H__
++
++/*-------------------------------------------------------------------------*/
++
++// Max packet size
++#define EP0_MAXPACKETSIZE 64
++#define EPBULK_MAXPACKETSIZE 512
++#define EPINTR_MAXPACKETSIZE 64
++
++#define UDC_MAX_ENDPOINTS 4
++
++/*-------------------------------------------------------------------------*/
++
++enum ep_type {
++ ep_control, ep_bulk_in, ep_bulk_out, ep_interrupt
++};
++
++struct jz4740_ep {
++ struct usb_ep ep;
++ struct jz4740_udc *dev;
++
++ const struct usb_endpoint_descriptor *desc;
++
++ uint8_t stopped;
++ uint8_t bEndpointAddress;
++ uint8_t bmAttributes;
++
++ enum ep_type type;
++ size_t fifo;
++ uint32_t csr;
++
++ uint32_t reg_addr;
++ struct list_head queue;
++};
++
++struct jz4740_request {
++ struct usb_request req;
++ struct list_head queue;
++};
++
++enum ep0state {
++ WAIT_FOR_SETUP, /* between STATUS ack and SETUP report */
++ DATA_STATE_XMIT, /* data tx stage */
++ DATA_STATE_NEED_ZLP, /* data tx zlp stage */
++ WAIT_FOR_OUT_STATUS, /* status stages */
++ DATA_STATE_RECV, /* data rx stage */
++};
++
++/* For function binding with UDC Disable - Added by River */
++typedef enum {
++ UDC_STATE_ENABLE = 0,
++ UDC_STATE_DISABLE,
++}udc_state_t;
++
++struct jz4740_udc {
++ struct usb_gadget gadget;
++ struct usb_gadget_driver *driver;
++ struct device *dev;
++ spinlock_t lock;
++ unsigned long lock_flags;
++
++ enum ep0state ep0state;
++ struct jz4740_ep ep[UDC_MAX_ENDPOINTS];
++
++ udc_state_t state;
++
++ struct resource *mem;
++ void __iomem *base;
++ int irq;
++
++ struct clk *clk;
++};
++
++#define ep_maxpacket(EP) ((EP)->ep.maxpacket)
++
++static inline bool ep_is_in(const struct jz4740_ep *ep)
++{
++ return (ep->bEndpointAddress & USB_DIR_IN) == USB_DIR_IN;
++}
++
++static inline uint8_t ep_index(const struct jz4740_ep *ep)
++{
++ return ep->bEndpointAddress & 0xf;
++}
++
++#endif /* __USB_GADGET_JZ4740_H__ */
+--
+1.7.5.4
+
--- /dev/null
+From b971c50dc50c07f981a1619f977e7509db9c4eac Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 26 Feb 2011 15:30:07 +0100
+Subject: [PATCH 03/21] NAND: Optimize NAND_ECC_HW_OOB_FIRST read
+
+Avoid sending unnecessary READ commands to the chip.
+---
+ drivers/mtd/nand/nand_base.c | 14 ++++++++++----
+ 1 files changed, 10 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
+index 3ed9c5e..184aa93 100644
+--- a/drivers/mtd/nand/nand_base.c
++++ b/drivers/mtd/nand/nand_base.c
+@@ -1294,9 +1294,15 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+ uint8_t *ecc_calc = chip->buffers->ecccalc;
+
+ /* Read the OOB area first */
+- chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+- chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
++ if (mtd->writesize > 512) {
++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1);
++ } else {
++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
++ }
+
+ for (i = 0; i < chip->ecc.total; i++)
+ ecc_code[i] = chip->oob_poi[eccpos[i]];
+@@ -1465,7 +1471,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
+ if (realpage != chip->pagebuf || oob) {
+ bufpoi = aligned ? buf : chip->buffers->databuf;
+
+- if (likely(sndcmd)) {
++ if (likely(sndcmd) && chip->ecc.mode != NAND_ECC_HW_OOB_FIRST) {
+ chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
+ sndcmd = 0;
+ }
+--
+1.7.5.4
+
--- /dev/null
+From 297d8a7bdfb755778d4189ca2861dd2a6125e972 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Tue, 15 Mar 2011 12:33:41 +0100
+Subject: [PATCH 04/21] NAND: Add support for subpage reads for
+ NAND_ECC_HW_OOB_FIRST
+
+---
+ drivers/mtd/nand/nand_base.c | 78 ++++++++++++++++++++++++++++++++++++++++--
+ include/linux/mtd/nand.h | 8 ++--
+ 2 files changed, 79 insertions(+), 7 deletions(-)
+
+diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
+index 184aa93..0131e84 100644
+--- a/drivers/mtd/nand/nand_base.c
++++ b/drivers/mtd/nand/nand_base.c
+@@ -1143,7 +1143,7 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
+ * @bufpoi: buffer to store read data
+ */
+ static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+- uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi)
++ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi, int page)
+ {
+ int start_step, end_step, num_steps;
+ uint32_t *eccpos = chip->ecc.layout->eccpos;
+@@ -1324,6 +1324,75 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+ }
+
+ /**
++ * nand_read_subpage_hwecc_oob_first - [REPLACABLE] hw ecc based sub-page read function
++ * @mtd: mtd info structure
++ * @chip: nand chip info structure
++ * @data_offs: offset of requested data within the page
++ * @readlen: data length
++ * @bufpoi: buffer to store read data
++ * @page: page number to read
++ *
++ * Hardware ECC for large page chips, require OOB to be read first.
++ * For this ECC mode, the write_page method is re-used from ECC_HW.
++ * These methods read/write ECC from the OOB area, unlike the
++ * ECC_HW_SYNDROME support with multiple ECC steps, follows the
++ * "infix ECC" scheme and reads/writes ECC from the data area, by
++ * overwriting the NAND manufacturer bad block markings.
++ */
++static int nand_read_subpage_hwecc_oob_first(struct mtd_info *mtd, struct nand_chip *chip,
++ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi, int page)
++{
++ int start_step, end_step, num_steps;
++ uint32_t *eccpos = chip->ecc.layout->eccpos;
++ uint8_t *p;
++ int data_col_addr;
++ int eccsize = chip->ecc.size;
++ int eccbytes = chip->ecc.bytes;
++ uint8_t *ecc_code = chip->buffers->ecccode;
++ uint8_t *ecc_calc = chip->buffers->ecccalc;
++ int i;
++
++ /* Column address wihin the page aligned to ECC size */
++ start_step = data_offs / chip->ecc.size;
++ end_step = (data_offs + readlen - 1) / chip->ecc.size;
++ num_steps = end_step - start_step + 1;
++
++ data_col_addr = start_step * chip->ecc.size;
++
++ /* Read the OOB area first */
++ if (mtd->writesize > 512) {
++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1);
++ } else {
++ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
++ chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_READ0, data_col_addr, page);
++ }
++
++ for (i = 0; i < chip->ecc.total; i++)
++ ecc_code[i] = chip->oob_poi[eccpos[i]];
++
++ p = bufpoi + data_col_addr;
++
++ for (i = eccbytes * start_step; num_steps; num_steps--, i += eccbytes, p += eccsize) {
++ int stat;
++
++ chip->ecc.hwctl(mtd, NAND_ECC_READ);
++ chip->read_buf(mtd, p, eccsize);
++ chip->ecc.calculate(mtd, p, &ecc_calc[i]);
++
++ stat = chip->ecc.correct(mtd, p, &ecc_code[i], NULL);
++ if (stat < 0)
++ mtd->ecc_stats.failed++;
++ else
++ mtd->ecc_stats.corrected += stat;
++ }
++
++ return 0;
++}
++
++/**
+ * nand_read_page_syndrome - [REPLACEABLE] hardware ECC syndrome based page read
+ * @mtd: mtd info structure
+ * @chip: nand chip info structure
+@@ -1482,7 +1551,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
+ bufpoi, page);
+ else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob)
+ ret = chip->ecc.read_subpage(mtd, chip,
+- col, bytes, bufpoi);
++ col, bytes, bufpoi, page);
+ else
+ ret = chip->ecc.read_page(mtd, chip, bufpoi,
+ page);
+@@ -3292,8 +3361,11 @@ int nand_scan_tail(struct mtd_info *mtd)
+ "hardware ECC not possible\n");
+ BUG();
+ }
+- if (!chip->ecc.read_page)
++ if (!chip->ecc.read_page) {
+ chip->ecc.read_page = nand_read_page_hwecc_oob_first;
++ if (!chip->ecc.read_subpage)
++ chip->ecc.read_subpage = nand_read_subpage_hwecc_oob_first;
++ }
+
+ case NAND_ECC_HW:
+ /* Use standard hwecc read page function? */
+diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
+index 904131b..9034100 100644
+--- a/include/linux/mtd/nand.h
++++ b/include/linux/mtd/nand.h
+@@ -211,9 +211,9 @@ typedef enum {
+ #define NAND_MUST_PAD(chip) (!(chip->options & NAND_NO_PADDING))
+ #define NAND_HAS_CACHEPROG(chip) ((chip->options & NAND_CACHEPRG))
+ #define NAND_HAS_COPYBACK(chip) ((chip->options & NAND_COPYBACK))
+-/* Large page NAND with SOFT_ECC should support subpage reads */
+-#define NAND_SUBPAGE_READ(chip) ((chip->ecc.mode == NAND_ECC_SOFT) \
+- && (chip->page_shift > 9))
++/* Large page NAND with read_subpage set should support subpage reads */
++#define NAND_SUBPAGE_READ(chip) (((chip)->ecc.read_subpage) \
++ && ((chip)->page_shift > 9))
+
+ /* Mask to zero out the chip options, which come from the id table */
+ #define NAND_CHIPOPTIONS_MSK (0x0000ffff & ~NAND_NO_AUTOINCR)
+@@ -367,7 +367,7 @@ struct nand_ecc_ctrl {
+ int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip,
+ uint8_t *buf, int page);
+ int (*read_subpage)(struct mtd_info *mtd, struct nand_chip *chip,
+- uint32_t offs, uint32_t len, uint8_t *buf);
++ uint32_t offs, uint32_t len, uint8_t *buf, int page);
+ void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
+ const uint8_t *buf);
+ int (*write_oob_raw)(struct mtd_info *mtd, struct nand_chip *chip,
+--
+1.7.5.4
+
--- /dev/null
+From 4f28237a750afd1112b6f1266d36f8b718efe89c Mon Sep 17 00:00:00 2001
+From: Xiangfu Liu <xiangfu@sharism.cc>
+Date: Tue, 6 Mar 2012 11:19:26 +0800
+Subject: [PATCH 05/21] NAND-Optimize-reading-the-eec-data-for-the-JZ4740
+
+---
+ drivers/mtd/nand/nand_base.c | 14 ++++----------
+ 1 files changed, 4 insertions(+), 10 deletions(-)
+
+diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
+index 0131e84..74b8cce 100644
+--- a/drivers/mtd/nand/nand_base.c
++++ b/drivers/mtd/nand/nand_base.c
+@@ -1295,8 +1295,8 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+
+ /* Read the OOB area first */
+ if (mtd->writesize > 512) {
+- chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
+- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize + eccpos[0], page);
++ chip->read_buf(mtd, ecc_code, chip->ecc.total);
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, 0, -1);
+ } else {
+ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+@@ -1304,9 +1304,6 @@ static int nand_read_page_hwecc_oob_first(struct mtd_info *mtd,
+ chip->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
+ }
+
+- for (i = 0; i < chip->ecc.total; i++)
+- ecc_code[i] = chip->oob_poi[eccpos[i]];
+-
+ for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
+ int stat;
+
+@@ -1361,8 +1358,8 @@ static int nand_read_subpage_hwecc_oob_first(struct mtd_info *mtd, struct nand_c
+
+ /* Read the OOB area first */
+ if (mtd->writesize > 512) {
+- chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize, page);
+- chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
++ chip->cmdfunc(mtd, NAND_CMD_READ0, mtd->writesize + eccpos[0], page);
++ chip->read_buf(mtd, ecc_code, chip->ecc.total);
+ chip->cmdfunc(mtd, NAND_CMD_RNDOUT, data_col_addr, -1);
+ } else {
+ chip->cmdfunc(mtd, NAND_CMD_READOOB, 0, page);
+@@ -1370,9 +1367,6 @@ static int nand_read_subpage_hwecc_oob_first(struct mtd_info *mtd, struct nand_c
+ chip->cmdfunc(mtd, NAND_CMD_READ0, data_col_addr, page);
+ }
+
+- for (i = 0; i < chip->ecc.total; i++)
+- ecc_code[i] = chip->oob_poi[eccpos[i]];
+-
+ p = bufpoi + data_col_addr;
+
+ for (i = eccbytes * start_step; num_steps; num_steps--, i += eccbytes, p += eccsize) {
+--
+1.7.5.4
+
--- /dev/null
+From d5814bdb661d3dac61422f8f69e459be884c9a9d Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Tue, 2 Aug 2011 10:49:28 +0200
+Subject: [PATCH 06/21] MTD: NAND: JZ4740: Multi-bank support with
+ autodetection
+
+The platform data can now specify which external memory banks to probe
+for NAND chips, and in which order. Banks that contain a NAND are used
+and the other banks are freed.
+
+Squashed version of development done in jz-2.6.38 branch.
+Original patch by Lars-Peter Clausen with some bug fixes from me.
+Thanks to Paul Cercueil for the initial autodetection patch.
+---
+ arch/mips/include/asm/mach-jz4740/jz4740_nand.h | 4 +
+ arch/mips/jz4740/platform.c | 20 ++-
+ drivers/mtd/nand/jz4740_nand.c | 228 +++++++++++++++++++----
+ 3 files changed, 215 insertions(+), 37 deletions(-)
+
+diff --git a/arch/mips/include/asm/mach-jz4740/jz4740_nand.h b/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
+index bb5b9a4..986982d 100644
+--- a/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
++++ b/arch/mips/include/asm/mach-jz4740/jz4740_nand.h
+@@ -19,6 +19,8 @@
+ #include <linux/mtd/nand.h>
+ #include <linux/mtd/partitions.h>
+
++#define JZ_NAND_NUM_BANKS 4
++
+ struct jz_nand_platform_data {
+ int num_partitions;
+ struct mtd_partition *partitions;
+@@ -27,6 +29,8 @@ struct jz_nand_platform_data {
+
+ unsigned int busy_gpio;
+
++ unsigned char banks[JZ_NAND_NUM_BANKS];
++
+ void (*ident_callback)(struct platform_device *, struct nand_chip *,
+ struct mtd_partition **, int *num_partitions);
+ };
+diff --git a/arch/mips/jz4740/platform.c b/arch/mips/jz4740/platform.c
+index 10929e2..e342ed4 100644
+--- a/arch/mips/jz4740/platform.c
++++ b/arch/mips/jz4740/platform.c
+@@ -157,11 +157,29 @@ static struct resource jz4740_nand_resources[] = {
+ .flags = IORESOURCE_MEM,
+ },
+ {
+- .name = "bank",
++ .name = "bank1",
+ .start = 0x18000000,
+ .end = 0x180C0000 - 1,
+ .flags = IORESOURCE_MEM,
+ },
++ {
++ .name = "bank2",
++ .start = 0x14000000,
++ .end = 0x140C0000 - 1,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "bank3",
++ .start = 0x0C000000,
++ .end = 0x0C0C0000 - 1,
++ .flags = IORESOURCE_MEM,
++ },
++ {
++ .name = "bank4",
++ .start = 0x08000000,
++ .end = 0x080C0000 - 1,
++ .flags = IORESOURCE_MEM,
++ },
+ };
+
+ struct platform_device jz4740_nand_device = {
+diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
+index e266407..b254b99 100644
+--- a/drivers/mtd/nand/jz4740_nand.c
++++ b/drivers/mtd/nand/jz4740_nand.c
+@@ -52,9 +52,10 @@
+
+ #define JZ_NAND_CTRL_ENABLE_CHIP(x) BIT((x) << 1)
+ #define JZ_NAND_CTRL_ASSERT_CHIP(x) BIT(((x) << 1) + 1)
++#define JZ_NAND_CTRL_ASSERT_CHIP_MASK 0xaa
+
+-#define JZ_NAND_MEM_ADDR_OFFSET 0x10000
+ #define JZ_NAND_MEM_CMD_OFFSET 0x08000
++#define JZ_NAND_MEM_ADDR_OFFSET 0x10000
+
+ struct jz_nand {
+ struct mtd_info mtd;
+@@ -62,8 +63,11 @@ struct jz_nand {
+ void __iomem *base;
+ struct resource *mem;
+
+- void __iomem *bank_base;
+- struct resource *bank_mem;
++ unsigned char banks[JZ_NAND_NUM_BANKS];
++ void __iomem *bank_base[JZ_NAND_NUM_BANKS];
++ struct resource *bank_mem[JZ_NAND_NUM_BANKS];
++
++ int selected_bank;
+
+ struct jz_nand_platform_data *pdata;
+ bool is_reading;
+@@ -74,26 +78,50 @@ static inline struct jz_nand *mtd_to_jz_nand(struct mtd_info *mtd)
+ return container_of(mtd, struct jz_nand, mtd);
+ }
+
++static void jz_nand_select_chip(struct mtd_info *mtd, int chipnr)
++{
++ struct jz_nand *nand = mtd_to_jz_nand(mtd);
++ struct nand_chip *chip = mtd->priv;
++ uint32_t ctrl;
++ int banknr;
++
++ ctrl = readl(nand->base + JZ_REG_NAND_CTRL);
++ ctrl &= ~JZ_NAND_CTRL_ASSERT_CHIP_MASK;
++
++ if (chipnr == -1) {
++ banknr = -1;
++ } else {
++ banknr = nand->banks[chipnr] - 1;
++ chip->IO_ADDR_R = nand->bank_base[banknr];
++ chip->IO_ADDR_W = nand->bank_base[banknr];
++ }
++ writel(ctrl, nand->base + JZ_REG_NAND_CTRL);
++
++ nand->selected_bank = banknr;
++}
++
+ static void jz_nand_cmd_ctrl(struct mtd_info *mtd, int dat, unsigned int ctrl)
+ {
+ struct jz_nand *nand = mtd_to_jz_nand(mtd);
+ struct nand_chip *chip = mtd->priv;
+ uint32_t reg;
++ void __iomem *bank_base = nand->bank_base[nand->selected_bank];
++
++ BUG_ON(nand->selected_bank < 0);
+
+ if (ctrl & NAND_CTRL_CHANGE) {
+ BUG_ON((ctrl & NAND_ALE) && (ctrl & NAND_CLE));
+ if (ctrl & NAND_ALE)
+- chip->IO_ADDR_W = nand->bank_base + JZ_NAND_MEM_ADDR_OFFSET;
++ bank_base += JZ_NAND_MEM_ADDR_OFFSET;
+ else if (ctrl & NAND_CLE)
+- chip->IO_ADDR_W = nand->bank_base + JZ_NAND_MEM_CMD_OFFSET;
+- else
+- chip->IO_ADDR_W = nand->bank_base;
++ bank_base += JZ_NAND_MEM_CMD_OFFSET;
++ chip->IO_ADDR_W = bank_base;
+
+ reg = readl(nand->base + JZ_REG_NAND_CTRL);
+ if (ctrl & NAND_NCE)
+- reg |= JZ_NAND_CTRL_ASSERT_CHIP(0);
++ reg |= JZ_NAND_CTRL_ASSERT_CHIP(nand->selected_bank);
+ else
+- reg &= ~JZ_NAND_CTRL_ASSERT_CHIP(0);
++ reg &= ~JZ_NAND_CTRL_ASSERT_CHIP(nand->selected_bank);
+ writel(reg, nand->base + JZ_REG_NAND_CTRL);
+ }
+ if (dat != NAND_CMD_NONE)
+@@ -252,7 +280,7 @@ static int jz_nand_correct_ecc_rs(struct mtd_info *mtd, uint8_t *dat,
+ }
+
+ static int jz_nand_ioremap_resource(struct platform_device *pdev,
+- const char *name, struct resource **res, void __iomem **base)
++ const char *name, struct resource **res, void *__iomem *base)
+ {
+ int ret;
+
+@@ -288,6 +316,90 @@ err:
+ return ret;
+ }
+
++static inline void jz_nand_iounmap_resource(struct resource *res, void __iomem *base)
++{
++ iounmap(base);
++ release_mem_region(res->start, resource_size(res));
++}
++
++static int __devinit jz_nand_detect_bank(struct platform_device *pdev, struct jz_nand *nand, unsigned char bank, size_t chipnr, uint8_t *nand_maf_id, uint8_t *nand_dev_id) {
++ int ret;
++ int gpio;
++ char gpio_name[9];
++ char res_name[6];
++ uint32_t ctrl;
++ struct mtd_info *mtd = &nand->mtd;
++ struct nand_chip *chip = &nand->chip;
++
++ /* Request GPIO port. */
++ gpio = JZ_GPIO_MEM_CS0 + bank - 1;
++ sprintf(gpio_name, "NAND CS%d", bank);
++ ret = gpio_request(gpio, gpio_name);
++ if (ret) {
++ dev_warn(&pdev->dev,
++ "Failed to request %s gpio %d: %d\n",
++ gpio_name, gpio, ret);
++ goto notfound_gpio;
++ }
++
++ /* Request I/O resource. */
++ sprintf(res_name, "bank%d", bank);
++ ret = jz_nand_ioremap_resource(pdev, res_name,
++ &nand->bank_mem[bank - 1],
++ &nand->bank_base[bank - 1]);
++ if (ret)
++ goto notfound_resource;
++
++ /* Enable chip in bank. */
++ jz_gpio_set_function(gpio, JZ_GPIO_FUNC_MEM_CS0);
++ ctrl = readl(nand->base + JZ_REG_NAND_CTRL);
++ ctrl |= JZ_NAND_CTRL_ENABLE_CHIP(bank - 1);
++ writel(ctrl, nand->base + JZ_REG_NAND_CTRL);
++
++ if (chipnr == 0) {
++ /* Detect first chip. */
++ ret = nand_scan_ident(mtd, 1, NULL);
++ if (ret)
++ goto notfound_id;
++
++ /* Retrieve the IDs from the first chip. */
++ chip->select_chip(mtd, 0);
++ chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
++ chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
++ *nand_maf_id = chip->read_byte(mtd);
++ *nand_dev_id = chip->read_byte(mtd);
++ } else {
++ /* Detect additional chip. */
++ chip->select_chip(mtd, chipnr);
++ chip->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
++ chip->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
++ if (*nand_maf_id != chip->read_byte(mtd)
++ || *nand_dev_id != chip->read_byte(mtd)) {
++ ret = -ENODEV;
++ goto notfound_id;
++ }
++
++ /* Update size of the MTD. */
++ chip->numchips++;
++ mtd->size += chip->chipsize;
++ }
++
++ dev_info(&pdev->dev, "Found chip %i on bank %i\n", chipnr, bank);
++ return 0;
++
++notfound_id:
++ dev_info(&pdev->dev, "No chip found on bank %i\n", bank);
++ ctrl &= ~(JZ_NAND_CTRL_ENABLE_CHIP(bank - 1));
++ writel(ctrl, nand->base + JZ_REG_NAND_CTRL);
++ jz_gpio_set_function(gpio, JZ_GPIO_FUNC_NONE);
++ jz_nand_iounmap_resource(nand->bank_mem[bank - 1],
++ nand->bank_base[bank - 1]);
++notfound_resource:
++ gpio_free(gpio);
++notfound_gpio:
++ return ret;
++}
++
+ static int __devinit jz_nand_probe(struct platform_device *pdev)
+ {
+ int ret;
+@@ -295,6 +407,8 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+ struct nand_chip *chip;
+ struct mtd_info *mtd;
+ struct jz_nand_platform_data *pdata = pdev->dev.platform_data;
++ size_t chipnr, bank_idx;
++ uint8_t nand_maf_id = 0, nand_dev_id = 0;
+
+ nand = kzalloc(sizeof(*nand), GFP_KERNEL);
+ if (!nand) {
+@@ -305,10 +419,6 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+ ret = jz_nand_ioremap_resource(pdev, "mmio", &nand->mem, &nand->base);
+ if (ret)
+ goto err_free;
+- ret = jz_nand_ioremap_resource(pdev, "bank", &nand->bank_mem,
+- &nand->bank_base);
+- if (ret)
+- goto err_iounmap_mmio;
+
+ if (pdata && gpio_is_valid(pdata->busy_gpio)) {
+ ret = gpio_request(pdata->busy_gpio, "NAND busy pin");
+@@ -316,7 +426,7 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+ dev_err(&pdev->dev,
+ "Failed to request busy gpio %d: %d\n",
+ pdata->busy_gpio, ret);
+- goto err_iounmap_mem;
++ goto err_iounmap_mmio;
+ }
+ }
+
+@@ -338,22 +448,51 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+
+ chip->chip_delay = 50;
+ chip->cmd_ctrl = jz_nand_cmd_ctrl;
++ chip->select_chip = jz_nand_select_chip;
+
+ if (pdata && gpio_is_valid(pdata->busy_gpio))
+ chip->dev_ready = jz_nand_dev_ready;
+
+- chip->IO_ADDR_R = nand->bank_base;
+- chip->IO_ADDR_W = nand->bank_base;
+-
+ nand->pdata = pdata;
+ platform_set_drvdata(pdev, nand);
+
+- writel(JZ_NAND_CTRL_ENABLE_CHIP(0), nand->base + JZ_REG_NAND_CTRL);
+-
+- ret = nand_scan_ident(mtd, 1, NULL);
+- if (ret) {
+- dev_err(&pdev->dev, "Failed to scan nand\n");
+- goto err_gpio_free;
++ /* We are going to autodetect NAND chips in the banks specified in the
++ * platform data. Although nand_scan_ident() can detect multiple chips,
++ * it requires those chips to be numbered consecuitively, which is not
++ * always the case for external memory banks. And a fixed chip-to-bank
++ * mapping is not practical either, since for example Dingoo units
++ * produced at different times have NAND chips in different banks.
++ */
++ chipnr = 0;
++ for (bank_idx = 0; bank_idx < JZ_NAND_NUM_BANKS; bank_idx++) {
++ unsigned char bank;
++
++ /* If there is no platform data, look for NAND in bank 1,
++ * which is the most likely bank since it is the only one
++ * that can be booted from.
++ */
++ bank = pdata ? pdata->banks[bank_idx] : bank_idx ^ 1;
++ if (bank == 0)
++ break;
++ if (bank > JZ_NAND_NUM_BANKS) {
++ dev_warn(&pdev->dev,
++ "Skipping non-existing bank: %d\n", bank);
++ continue;
++ }
++ /* The detection routine will directly or indirectly call
++ * jz_nand_select_chip(), so nand->banks has to contain the
++ * bank we're checking.
++ */
++ nand->banks[chipnr] = bank;
++ if (jz_nand_detect_bank(pdev, nand, bank, chipnr,
++ &nand_maf_id, &nand_dev_id) == 0)
++ chipnr++;
++ else
++ nand->banks[chipnr] = 0;
++ }
++ if (chipnr == 0) {
++ dev_err(&pdev->dev, "No NAND chips found\n");
++ goto err_gpio_busy;
+ }
+
+ if (pdata && pdata->ident_callback) {
+@@ -363,8 +502,8 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+
+ ret = nand_scan_tail(mtd);
+ if (ret) {
+- dev_err(&pdev->dev, "Failed to scan nand\n");
+- goto err_gpio_free;
++ dev_err(&pdev->dev, "Failed to scan NAND\n");
++ goto err_unclaim_banks;
+ }
+
+ ret = mtd_device_parse_register(mtd, NULL, 0,
+@@ -381,14 +520,21 @@ static int __devinit jz_nand_probe(struct platform_device *pdev)
+ return 0;
+
+ err_nand_release:
+- nand_release(&nand->mtd);
+-err_gpio_free:
++ nand_release(mtd);
++err_unclaim_banks:
++ while (chipnr--) {
++ unsigned char bank = nand->banks[chipnr];
++ gpio_free(JZ_GPIO_MEM_CS0 + bank - 1);
++ jz_nand_iounmap_resource(nand->bank_mem[bank - 1],
++ nand->bank_base[bank - 1]);
++ }
++ writel(0, nand->base + JZ_REG_NAND_CTRL);
++err_gpio_busy:
++ if (pdata && gpio_is_valid(pdata->busy_gpio))
++ gpio_free(pdata->busy_gpio);
+ platform_set_drvdata(pdev, NULL);
+- gpio_free(pdata->busy_gpio);
+-err_iounmap_mem:
+- iounmap(nand->bank_base);
+ err_iounmap_mmio:
+- iounmap(nand->base);
++ jz_nand_iounmap_resource(nand->mem, nand->base);
+ err_free:
+ kfree(nand);
+ return ret;
+@@ -397,16 +543,26 @@ err_free:
+ static int __devexit jz_nand_remove(struct platform_device *pdev)
+ {
+ struct jz_nand *nand = platform_get_drvdata(pdev);
++ struct jz_nand_platform_data *pdata = pdev->dev.platform_data;
++ size_t i;
+
+ nand_release(&nand->mtd);
+
+ /* Deassert and disable all chips */
+ writel(0, nand->base + JZ_REG_NAND_CTRL);
+
+- iounmap(nand->bank_base);
+- release_mem_region(nand->bank_mem->start, resource_size(nand->bank_mem));
+- iounmap(nand->base);
+- release_mem_region(nand->mem->start, resource_size(nand->mem));
++ for (i = 0; i < JZ_NAND_NUM_BANKS; ++i) {
++ unsigned char bank = nand->banks[i];
++ if (bank != 0) {
++ jz_nand_iounmap_resource(nand->bank_mem[bank - 1],
++ nand->bank_base[bank - 1]);
++ gpio_free(JZ_GPIO_MEM_CS0 + bank - 1);
++ }
++ }
++ if (pdata && gpio_is_valid(pdata->busy_gpio))
++ gpio_free(pdata->busy_gpio);
++
++ jz_nand_iounmap_resource(nand->mem, nand->base);
+
+ platform_set_drvdata(pdev, NULL);
+ kfree(nand);
+--
+1.7.5.4
+
--- /dev/null
+From 2248fb9c47fe7e72c735d6c16aba27bf92e1673a Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sun, 1 Aug 2010 21:19:40 +0200
+Subject: [PATCH 07/21] Add ili8960 lcd driver
+
+---
+ drivers/video/backlight/Kconfig | 7 +
+ drivers/video/backlight/Makefile | 1 +
+ drivers/video/backlight/ili8960.c | 263 +++++++++++++++++++++++++++++++++++++
+ 3 files changed, 271 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/video/backlight/ili8960.c
+
+diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
+index 278aeaa..f617883 100644
+--- a/drivers/video/backlight/Kconfig
++++ b/drivers/video/backlight/Kconfig
+@@ -59,6 +59,13 @@ config LCD_LTV350QV
+
+ The LTV350QV panel is present on all ATSTK1000 boards.
+
++config LCD_ILI8960
++ tristate "Ilitek ili8960 LCD driver"
++ depends on LCD_CLASS_DEVICE && SPI
++ default n
++ help
++ Driver for the Ilitek ili8960 LCD controller chip.
++
+ config LCD_ILI9320
+ tristate
+ help
+diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
+index fdd1fc4..01ec378 100644
+--- a/drivers/video/backlight/Makefile
++++ b/drivers/video/backlight/Makefile
+@@ -6,6 +6,7 @@ obj-$(CONFIG_LCD_HP700) += jornada720_lcd.o
+ obj-$(CONFIG_LCD_L4F00242T03) += l4f00242t03.o
+ obj-$(CONFIG_LCD_LMS283GF05) += lms283gf05.o
+ obj-$(CONFIG_LCD_LTV350QV) += ltv350qv.o
++obj-$(CONFIG_LCD_ILI8960) += ili8960.o
+ obj-$(CONFIG_LCD_ILI9320) += ili9320.o
+ obj-$(CONFIG_LCD_PLATFORM) += platform_lcd.o
+ obj-$(CONFIG_LCD_VGG2432A4) += vgg2432a4.o
+diff --git a/drivers/video/backlight/ili8960.c b/drivers/video/backlight/ili8960.c
+new file mode 100644
+index 0000000..1438e92
+--- /dev/null
++++ b/drivers/video/backlight/ili8960.c
+@@ -0,0 +1,263 @@
++/*
++ * Copyright (C) 2009-2010, Lars-Peter Clausen <lars@metafoo.de>
++ * Driver for Ilitek ili8960 LCD
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/spi/spi.h>
++#include <linux/lcd.h>
++#include <linux/backlight.h>
++#include <linux/delay.h>
++
++struct ili8960 {
++ struct spi_device *spi;
++ struct lcd_device *lcd;
++ struct backlight_device *bl;
++ bool enabled;
++ unsigned int brightness;
++};
++
++#define ILI8960_REG_BRIGHTNESS 0x03
++#define ILI8960_REG_POWER 0x05
++#define ILI8960_REG_CONTRAST 0x0d
++
++static int ili8960_write_reg(struct spi_device *spi, uint8_t reg,
++ uint8_t data)
++{
++ uint8_t buf[2];
++ buf[0] = ((reg & 0x40) << 1) | (reg & 0x3f);
++ buf[1] = data;
++
++ return spi_write(spi, buf, sizeof(buf));
++}
++
++static int ili8960_programm_power(struct spi_device *spi, bool enabled)
++{
++ int ret;
++
++ if (enabled)
++ mdelay(20);
++
++ ret = ili8960_write_reg(spi, ILI8960_REG_POWER, enabled ? 0xc7 : 0xc6);
++
++ if (!enabled)
++ mdelay(20);
++
++ return ret;
++}
++
++static int ili8960_set_power(struct lcd_device *lcd, int power)
++{
++ struct ili8960 *ili8960 = lcd_get_data(lcd);
++
++ switch (power) {
++ case FB_BLANK_UNBLANK:
++ ili8960->enabled = true;
++ break;
++ default:
++ ili8960->enabled = false;
++ break;
++ }
++
++ return ili8960_programm_power(ili8960->spi, ili8960->enabled);
++}
++
++static int ili8960_get_power(struct lcd_device *lcd)
++{
++ struct ili8960 *ili8960 = lcd_get_data(lcd);
++ return ili8960->enabled ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
++}
++
++static int ili8960_set_contrast(struct lcd_device *lcd, int contrast)
++{
++ struct ili8960 *ili8960 = lcd_get_data(lcd);
++
++ return ili8960_write_reg(ili8960->spi, ILI8960_REG_CONTRAST, contrast);
++}
++
++static int ili8960_set_mode(struct lcd_device *lcd, struct fb_videomode *mode)
++{
++ if (mode->xres != 320 && mode->yres != 240)
++ return -EINVAL;
++
++ return 0;
++}
++
++static int ili8960_set_brightness(struct ili8960 *ili8960, int brightness)
++{
++ int ret;
++
++ ret = ili8960_write_reg(ili8960->spi, ILI8960_REG_BRIGHTNESS, brightness);
++
++ if (ret == 0)
++ ili8960->brightness = brightness;
++
++ return ret;
++}
++
++static ssize_t ili8960_show_brightness(struct device *dev,
++ struct device_attribute *attr, char *buf)
++{
++ struct lcd_device *ld = to_lcd_device(dev);
++ struct ili8960 *ili8960 = lcd_get_data(ld);
++
++ return sprintf(buf, "%u\n", ili8960->brightness);
++}
++
++static ssize_t ili8960_store_brightness(struct device *dev,
++ struct device_attribute *attr, const char *buf, size_t count)
++{
++ struct lcd_device *ld = to_lcd_device(dev);
++ struct ili8960 *ili8960 = lcd_get_data(ld);
++ unsigned long brightness;
++ int ret;
++
++ ret = strict_strtoul(buf, 0, &brightness);
++ if (ret)
++ return ret;
++
++ if (brightness > 255)
++ return -EINVAL;
++
++ ili8960_set_brightness(ili8960, brightness);
++
++ return count;
++}
++
++
++static DEVICE_ATTR(brightness, 0644, ili8960_show_brightness,
++ ili8960_store_brightness);
++
++static struct lcd_ops ili8960_lcd_ops = {
++ .set_power = ili8960_set_power,
++ .get_power = ili8960_get_power,
++ .set_contrast = ili8960_set_contrast,
++ .set_mode = ili8960_set_mode,
++};
++
++static int __devinit ili8960_probe(struct spi_device *spi)
++{
++ int ret;
++ struct ili8960 *ili8960;
++
++ ili8960 = kmalloc(sizeof(*ili8960), GFP_KERNEL);
++ if (!ili8960)
++ return -ENOMEM;
++
++ spi->bits_per_word = 8;
++ spi->mode = SPI_MODE_3;
++
++ ret = spi_setup(spi);
++ if (ret) {
++ dev_err(&spi->dev, "Failed to setup spi\n");
++ goto err_free_ili8960;
++ }
++
++ ili8960->spi = spi;
++
++ ili8960->lcd = lcd_device_register("ili8960-lcd", &spi->dev, ili8960,
++ &ili8960_lcd_ops);
++
++ if (IS_ERR(ili8960->lcd)) {
++ ret = PTR_ERR(ili8960->lcd);
++ dev_err(&spi->dev, "Failed to register lcd device: %d\n", ret);
++ goto err_free_ili8960;
++ }
++
++ ili8960->lcd->props.max_contrast = 255;
++
++ ret = device_create_file(&ili8960->lcd->dev, &dev_attr_brightness);
++ if (ret)
++ goto err_unregister_lcd;
++
++ ili8960_programm_power(ili8960->spi, true);
++ ili8960->enabled = true;
++
++ spi_set_drvdata(spi, ili8960);
++
++ ili8960_write_reg(spi, 0x13, 0x01);
++
++ return 0;
++err_unregister_lcd:
++ lcd_device_unregister(ili8960->lcd);
++err_free_ili8960:
++ kfree(ili8960);
++ return ret;
++}
++
++static int __devexit ili8960_remove(struct spi_device *spi)
++{
++ struct ili8960 *ili8960 = spi_get_drvdata(spi);
++
++ device_remove_file(&ili8960->lcd->dev, &dev_attr_brightness);
++ lcd_device_unregister(ili8960->lcd);
++
++ spi_set_drvdata(spi, NULL);
++ kfree(ili8960);
++ return 0;
++}
++
++#ifdef CONFIG_PM
++
++static int ili8960_suspend(struct spi_device *spi, pm_message_t state)
++{
++ struct ili8960 *ili8960 = spi_get_drvdata(spi);
++
++ if (ili8960->enabled)
++ ili8960_programm_power(ili8960->spi, false);
++
++ return 0;
++}
++
++static int ili8960_resume(struct spi_device *spi)
++{
++ struct ili8960 *ili8960 = spi_get_drvdata(spi);
++
++ if (ili8960->enabled)
++ ili8960_programm_power(ili8960->spi, true);
++
++ return 0;
++}
++
++#else
++#define ili8960_suspend NULL
++#define ili8960_resume NULL
++#endif
++
++static struct spi_driver ili8960_driver = {
++ .driver = {
++ .name = "ili8960",
++ .owner = THIS_MODULE,
++ },
++ .probe = ili8960_probe,
++ .remove = __devexit_p(ili8960_remove),
++ .suspend = ili8960_suspend,
++ .resume = ili8960_resume,
++};
++
++static int __init ili8960_init(void)
++{
++ return spi_register_driver(&ili8960_driver);
++}
++module_init(ili8960_init);
++
++static void __exit ili8960_exit(void)
++{
++ spi_unregister_driver(&ili8960_driver);
++}
++module_exit(ili8960_exit)
++
++MODULE_AUTHOR("Lars-Peter Clausen");
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("LCD driver for Ilitek ili8960");
++MODULE_ALIAS("spi:ili8960");
+--
+1.7.5.4
+
--- /dev/null
+From e5f25e25ed6c0478cbba7a32891b911e3183dad4 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Wed, 13 Oct 2010 01:17:24 +0200
+Subject: [PATCH 08/21] qi_lb60: Don't use 3-wire spi mode for the display for
+ now
+
+The spi_gpio driver does not support 3-wire mode.
+---
+ arch/mips/jz4740/board-qi_lb60.c | 1 -
+ 1 files changed, 0 insertions(+), 1 deletions(-)
+
+diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
+index c3b04be..b622941 100644
+--- a/arch/mips/jz4740/board-qi_lb60.c
++++ b/arch/mips/jz4740/board-qi_lb60.c
+@@ -310,7 +310,6 @@ static struct spi_board_info qi_lb60_spi_board_info[] = {
+ .chip_select = 0,
+ .bus_num = 1,
+ .max_speed_hz = 30 * 1000,
+- .mode = SPI_3WIRE,
+ },
+ };
+
+--
+1.7.5.4
+
--- /dev/null
+From 4003b9a2c05f4d0d37535c3dffbf4a7b47d5c36c Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Wed, 8 Sep 2010 02:31:19 +0200
+Subject: [PATCH 09/21] /dev/mem: Add kernel config option to omit this
+ device.
+
+Omitting this device prevents software from accessing the hardware directly, which can cause trouble if the kernel accesses the same hardware.
+It also saves some space on embedded systems.
+---
+ arch/x86/Kconfig.debug | 1 +
+ drivers/char/Kconfig | 10 ++++++++++
+ drivers/char/mem.c | 17 +++++++++++++++++
+ 3 files changed, 28 insertions(+), 0 deletions(-)
+
+diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
+index bf56e17..0c97d51 100644
+--- a/arch/x86/Kconfig.debug
++++ b/arch/x86/Kconfig.debug
+@@ -7,6 +7,7 @@ source "lib/Kconfig.debug"
+
+ config STRICT_DEVMEM
+ bool "Filter access to /dev/mem"
++ depends on DEVMEM
+ ---help---
+ If this option is disabled, you allow userspace (root) access to all
+ of memory, including kernel and userspace memory. Accidental
+diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
+index 4364303..a2e462e 100644
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -6,6 +6,16 @@ menu "Character devices"
+
+ source "drivers/tty/Kconfig"
+
++config DEVMEM
++ bool "/dev/mem virtual device support"
++ default y
++ help
++ Say Y here if you want to support the /dev/mem device.
++ Some X server drivers access the video hardware using this device.
++ Accessing hardware directly from user space can be useful in some
++ cases, but it is not without risks.
++ When in doubt, say "N".
++
+ config DEVKMEM
+ bool "/dev/kmem virtual device support"
+ default y
+diff --git a/drivers/char/mem.c b/drivers/char/mem.c
+index 1451790..a6020ca 100644
+--- a/drivers/char/mem.c
++++ b/drivers/char/mem.c
+@@ -87,6 +87,8 @@ void __weak unxlate_dev_mem_ptr(unsigned long phys, void *addr)
+ {
+ }
+
++#ifdef CONFIG_DEVMEM
++
+ /*
+ * This funcion reads the *physical* memory. The f_pos points directly to the
+ * memory location.
+@@ -210,6 +212,10 @@ static ssize_t write_mem(struct file *file, const char __user *buf,
+ return written;
+ }
+
++#endif
++
++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM)
++
+ int __weak phys_mem_access_prot_allowed(struct file *file,
+ unsigned long pfn, unsigned long size, pgprot_t *vma_prot)
+ {
+@@ -331,6 +337,8 @@ static int mmap_mem(struct file *file, struct vm_area_struct *vma)
+ return 0;
+ }
+
++#endif
++
+ #ifdef CONFIG_DEVKMEM
+ static int mmap_kmem(struct file *file, struct vm_area_struct *vma)
+ {
+@@ -694,6 +702,7 @@ static loff_t null_lseek(struct file *file, loff_t offset, int orig)
+ return file->f_pos = 0;
+ }
+
++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM) || defined(CONFIG_DEVPORT)
+ /*
+ * The memory devices use the full 32/64 bits of the offset, and so we cannot
+ * check against negative addresses: they are ok. The return value is weird,
+@@ -726,11 +735,15 @@ static loff_t memory_lseek(struct file *file, loff_t offset, int orig)
+ mutex_unlock(&file->f_path.dentry->d_inode->i_mutex);
+ return ret;
+ }
++#endif
+
++#if defined(CONFIG_DEVMEM) || defined(CONFIG_DEVKMEM) || \
++ defined(CONFIG_DEVPORT) || defined(CONFIG_CRASH_DUMP)
+ static int open_port(struct inode * inode, struct file * filp)
+ {
+ return capable(CAP_SYS_RAWIO) ? 0 : -EPERM;
+ }
++#endif
+
+ #define zero_lseek null_lseek
+ #define full_lseek null_lseek
+@@ -740,6 +753,7 @@ static int open_port(struct inode * inode, struct file * filp)
+ #define open_kmem open_mem
+ #define open_oldmem open_mem
+
++#ifdef CONFIG_DEVMEM
+ static const struct file_operations mem_fops = {
+ .llseek = memory_lseek,
+ .read = read_mem,
+@@ -748,6 +762,7 @@ static const struct file_operations mem_fops = {
+ .open = open_mem,
+ .get_unmapped_area = get_unmapped_area_mem,
+ };
++#endif
+
+ #ifdef CONFIG_DEVKMEM
+ static const struct file_operations kmem_fops = {
+@@ -851,7 +866,9 @@ static const struct memdev {
+ const struct file_operations *fops;
+ struct backing_dev_info *dev_info;
+ } devlist[] = {
++#ifdef CONFIG_DEVMEM
+ [1] = { "mem", 0, &mem_fops, &directly_mappable_cdev_bdi },
++#endif
+ #ifdef CONFIG_DEVKMEM
+ [2] = { "kmem", 0, &kmem_fops, &directly_mappable_cdev_bdi },
+ #endif
+--
+1.7.5.4
+
--- /dev/null
+From ca40c7542f0cd0e0dfa074bd4ccefc04b8561427 Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Tue, 2 Aug 2011 10:26:09 +0200
+Subject: [PATCH 10/21] cpufreq_stats: Support runtime changes to frequency
+ table.
+
+---
+ drivers/cpufreq/cpufreq_stats.c | 161 ++++++++++++++++++++-------------------
+ 1 files changed, 83 insertions(+), 78 deletions(-)
+
+diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
+index c5072a9..95f6eb9 100644
+--- a/drivers/cpufreq/cpufreq_stats.c
++++ b/drivers/cpufreq/cpufreq_stats.c
+@@ -21,6 +21,7 @@
+ #include <linux/kobject.h>
+ #include <linux/spinlock.h>
+ #include <linux/notifier.h>
++#include <linux/string.h>
+ #include <asm/cputime.h>
+
+ static spinlock_t cpufreq_stats_lock;
+@@ -37,7 +38,7 @@ struct cpufreq_stats {
+ unsigned long long last_time;
+ unsigned int max_state;
+ unsigned int state_num;
+- unsigned int last_index;
++ int last_index;
+ cputime64_t *time_in_state;
+ unsigned int *freq_table;
+ #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
+@@ -60,7 +61,7 @@ static int cpufreq_stats_update(unsigned int cpu)
+ cur_time = get_jiffies_64();
+ spin_lock(&cpufreq_stats_lock);
+ stat = per_cpu(cpufreq_stats_table, cpu);
+- if (stat->time_in_state)
++ if (stat->time_in_state && stat->last_index != -1)
+ stat->time_in_state[stat->last_index] =
+ cputime64_add(stat->time_in_state[stat->last_index],
+ cputime_sub(cur_time, stat->last_time));
+@@ -83,7 +84,7 @@ static ssize_t show_time_in_state(struct cpufreq_policy *policy, char *buf)
+ ssize_t len = 0;
+ int i;
+ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
+- if (!stat)
++ if (!stat || !stat->time_in_state)
+ return 0;
+ cpufreq_stats_update(stat->cpu);
+ for (i = 0; i < stat->state_num; i++) {
+@@ -101,7 +102,7 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
+ int i, j;
+
+ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, policy->cpu);
+- if (!stat)
++ if (!stat || !stat->trans_table)
+ return 0;
+ cpufreq_stats_update(stat->cpu);
+ len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n");
+@@ -160,63 +161,35 @@ static struct attribute_group stats_attr_group = {
+ static int freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq)
+ {
+ int index;
+- for (index = 0; index < stat->max_state; index++)
+- if (stat->freq_table[index] == freq)
+- return index;
++ if (stat->freq_table)
++ for (index = 0; index < stat->max_state; index++)
++ if (stat->freq_table[index] == freq)
++ return index;
+ return -1;
+ }
+
+-/* should be called late in the CPU removal sequence so that the stats
+- * memory is still available in case someone tries to use it.
+- */
+ static void cpufreq_stats_free_table(unsigned int cpu)
+ {
+ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu);
++ struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
++ if (policy && policy->cpu == cpu)
++ sysfs_remove_group(&policy->kobj, &stats_attr_group);
+ if (stat) {
+ kfree(stat->time_in_state);
+ kfree(stat);
+ }
+ per_cpu(cpufreq_stats_table, cpu) = NULL;
+-}
+-
+-/* must be called early in the CPU removal sequence (before
+- * cpufreq_remove_dev) so that policy is still valid.
+- */
+-static void cpufreq_stats_free_sysfs(unsigned int cpu)
+-{
+- struct cpufreq_policy *policy = cpufreq_cpu_get(cpu);
+- if (policy && policy->cpu == cpu)
+- sysfs_remove_group(&policy->kobj, &stats_attr_group);
+ if (policy)
+ cpufreq_cpu_put(policy);
+ }
+
+-static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
++static int cpufreq_stats_update_table(struct cpufreq_policy *policy,
+ struct cpufreq_frequency_table *table)
+ {
+- unsigned int i, j, count = 0, ret = 0;
+- struct cpufreq_stats *stat;
+- struct cpufreq_policy *data;
++ unsigned int i, j, count = 0;
+ unsigned int alloc_size;
+ unsigned int cpu = policy->cpu;
+- if (per_cpu(cpufreq_stats_table, cpu))
+- return -EBUSY;
+- stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL);
+- if ((stat) == NULL)
+- return -ENOMEM;
+-
+- data = cpufreq_cpu_get(cpu);
+- if (data == NULL) {
+- ret = -EINVAL;
+- goto error_get_fail;
+- }
+-
+- ret = sysfs_create_group(&data->kobj, &stats_attr_group);
+- if (ret)
+- goto error_out;
+-
+- stat->cpu = cpu;
+- per_cpu(cpufreq_stats_table, cpu) = stat;
++ struct cpufreq_stats *stat = per_cpu(cpufreq_stats_table, cpu);
+
+ for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+ unsigned int freq = table[i].frequency;
+@@ -225,40 +198,73 @@ static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
+ count++;
+ }
+
++ if (stat->max_state != count) {
++ stat->max_state = count;
++ kfree(stat->time_in_state);
++ stat->time_in_state = NULL;
++ }
+ alloc_size = count * sizeof(int) + count * sizeof(cputime64_t);
+-
+ #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
+ alloc_size += count * count * sizeof(int);
+ #endif
+- stat->max_state = count;
+- stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
+- if (!stat->time_in_state) {
+- ret = -ENOMEM;
+- goto error_out;
+- }
+- stat->freq_table = (unsigned int *)(stat->time_in_state + count);
+-
++ if (stat->time_in_state) {
++ memset(stat->time_in_state, 0, alloc_size);
++ } else {
++ stat->time_in_state = kzalloc(alloc_size, GFP_KERNEL);
++ if (!stat->time_in_state)
++ return -ENOMEM;
++ stat->freq_table = (unsigned int *)(
++ stat->time_in_state + count);
+ #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
+- stat->trans_table = stat->freq_table + count;
++ stat->trans_table = stat->freq_table + count;
+ #endif
++ }
++
+ j = 0;
+- for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
+- unsigned int freq = table[i].frequency;
+- if (freq == CPUFREQ_ENTRY_INVALID)
+- continue;
+- if (freq_table_get_index(stat, freq) == -1)
+- stat->freq_table[j++] = freq;
++ if (stat->freq_table) {
++ for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
++ unsigned int freq = table[i].frequency;
++ if (freq == CPUFREQ_ENTRY_INVALID)
++ continue;
++ if (freq_table_get_index(stat, freq) == -1)
++ stat->freq_table[j++] = freq;
++ }
+ }
+ stat->state_num = j;
+ spin_lock(&cpufreq_stats_lock);
+ stat->last_time = get_jiffies_64();
+ stat->last_index = freq_table_get_index(stat, policy->cur);
+ spin_unlock(&cpufreq_stats_lock);
++ return 0;
++}
++
++static int cpufreq_stats_create_table(struct cpufreq_policy *policy,
++ struct cpufreq_frequency_table *table)
++{
++ unsigned int ret = 0;
++ struct cpufreq_stats *stat;
++ struct cpufreq_policy *data;
++ unsigned int cpu = policy->cpu;
++
++ stat = kzalloc(sizeof(struct cpufreq_stats), GFP_KERNEL);
++ if ((stat) == NULL)
++ return -ENOMEM;
++
++ data = cpufreq_cpu_get(cpu);
++ if (data == NULL) {
++ ret = -EINVAL;
++ goto error_out;
++ }
++ ret = sysfs_create_group(&data->kobj, &stats_attr_group);
+ cpufreq_cpu_put(data);
++ if (ret)
++ goto error_out;
++
++ stat->cpu = cpu;
++ per_cpu(cpufreq_stats_table, cpu) = stat;
++
+ return 0;
+ error_out:
+- cpufreq_cpu_put(data);
+-error_get_fail:
+ kfree(stat);
+ per_cpu(cpufreq_stats_table, cpu) = NULL;
+ return ret;
+@@ -276,10 +282,12 @@ static int cpufreq_stat_notifier_policy(struct notifier_block *nb,
+ table = cpufreq_frequency_get_table(cpu);
+ if (!table)
+ return 0;
+- ret = cpufreq_stats_create_table(policy, table);
+- if (ret)
+- return ret;
+- return 0;
++ if (!per_cpu(cpufreq_stats_table, cpu)) {
++ ret = cpufreq_stats_create_table(policy, table);
++ if (ret)
++ return ret;
++ }
++ return cpufreq_stats_update_table(policy, table);
+ }
+
+ static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
+@@ -299,21 +307,23 @@ static int cpufreq_stat_notifier_trans(struct notifier_block *nb,
+ old_index = stat->last_index;
+ new_index = freq_table_get_index(stat, freq->new);
+
+- /* We can't do stat->time_in_state[-1]= .. */
+- if (old_index == -1 || new_index == -1)
+- return 0;
+-
+ cpufreq_stats_update(freq->cpu);
+-
+ if (old_index == new_index)
+ return 0;
+
++ if (new_index == -1)
++ return 0;
++
+ spin_lock(&cpufreq_stats_lock);
+ stat->last_index = new_index;
++ if (old_index != -1) {
+ #ifdef CONFIG_CPU_FREQ_STAT_DETAILS
+- stat->trans_table[old_index * stat->max_state + new_index]++;
++ if (stat->trans_table)
++ stat->trans_table[old_index * stat->max_state +
++ new_index]++;
+ #endif
+- stat->total_trans++;
++ stat->total_trans++;
++ }
+ spin_unlock(&cpufreq_stats_lock);
+ return 0;
+ }
+@@ -329,9 +339,6 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
+ case CPU_ONLINE_FROZEN:
+ cpufreq_update_policy(cpu);
+ break;
+- case CPU_DOWN_PREPARE:
+- cpufreq_stats_free_sysfs(cpu);
+- break;
+ case CPU_DEAD:
+ case CPU_DEAD_FROZEN:
+ cpufreq_stats_free_table(cpu);
+@@ -340,10 +347,9 @@ static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb,
+ return NOTIFY_OK;
+ }
+
+-/* priority=1 so this will get called before cpufreq_remove_dev */
+-static struct notifier_block cpufreq_stat_cpu_notifier __refdata = {
++static struct notifier_block cpufreq_stat_cpu_notifier __refdata =
++{
+ .notifier_call = cpufreq_stat_cpu_callback,
+- .priority = 1,
+ };
+
+ static struct notifier_block notifier_policy_block = {
+@@ -390,7 +396,6 @@ static void __exit cpufreq_stats_exit(void)
+ unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier);
+ for_each_online_cpu(cpu) {
+ cpufreq_stats_free_table(cpu);
+- cpufreq_stats_free_sysfs(cpu);
+ }
+ }
+
+--
+1.7.5.4
+
--- /dev/null
+From 27ff621cd9a5347efda4be502abbef13a99146ce Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Sun, 29 Aug 2010 08:11:00 +0200
+Subject: [PATCH 11/21] MIPS: JZ4740: Added setting of PLL rate and main
+ dividers.
+
+This functionality makes a cpufreq driver possible.
+Squashed version of the development done in the jz-2.6.39 branch.
+---
+ arch/mips/jz4740/clock.c | 230 ++++++++++++++++++++++++++++++++++++++++++++--
+ arch/mips/jz4740/clock.h | 4 +
+ 2 files changed, 224 insertions(+), 10 deletions(-)
+
+diff --git a/arch/mips/jz4740/clock.c b/arch/mips/jz4740/clock.c
+index 118a8a5..da423d1 100644
+--- a/arch/mips/jz4740/clock.c
++++ b/arch/mips/jz4740/clock.c
+@@ -1,5 +1,8 @@
+ /*
++ * Copyright (c) 2006-2007, Ingenic Semiconductor Inc.
+ * Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
++ * Copyright (c) 2010, Ulrich Hecht <ulrich.hecht@gmail.com>
++ * Copyright (c) 2010, Maarten ter Huurne <maarten@treewalker.org>
+ * JZ4740 SoC clock support
+ *
+ * This program is free software; you can redistribute it and/or modify it
+@@ -41,16 +44,20 @@
+ #define JZ_CLOCK_CTRL_I2S_SRC_PLL BIT(31)
+ #define JZ_CLOCK_CTRL_KO_ENABLE BIT(30)
+ #define JZ_CLOCK_CTRL_UDC_SRC_PLL BIT(29)
+-#define JZ_CLOCK_CTRL_UDIV_MASK 0x1f800000
+ #define JZ_CLOCK_CTRL_CHANGE_ENABLE BIT(22)
+ #define JZ_CLOCK_CTRL_PLL_HALF BIT(21)
+-#define JZ_CLOCK_CTRL_LDIV_MASK 0x001f0000
+ #define JZ_CLOCK_CTRL_UDIV_OFFSET 23
+ #define JZ_CLOCK_CTRL_LDIV_OFFSET 16
+ #define JZ_CLOCK_CTRL_MDIV_OFFSET 12
+ #define JZ_CLOCK_CTRL_PDIV_OFFSET 8
+ #define JZ_CLOCK_CTRL_HDIV_OFFSET 4
+ #define JZ_CLOCK_CTRL_CDIV_OFFSET 0
++#define JZ_CLOCK_CTRL_UDIV_MASK (0x3f << JZ_CLOCK_CTRL_UDIV_OFFSET)
++#define JZ_CLOCK_CTRL_LDIV_MASK (0x1f << JZ_CLOCK_CTRL_LDIV_OFFSET)
++#define JZ_CLOCK_CTRL_MDIV_MASK (0x0f << JZ_CLOCK_CTRL_MDIV_OFFSET)
++#define JZ_CLOCK_CTRL_PDIV_MASK (0x0f << JZ_CLOCK_CTRL_PDIV_OFFSET)
++#define JZ_CLOCK_CTRL_HDIV_MASK (0x0f << JZ_CLOCK_CTRL_HDIV_OFFSET)
++#define JZ_CLOCK_CTRL_CDIV_MASK (0x0f << JZ_CLOCK_CTRL_CDIV_OFFSET)
+
+ #define JZ_CLOCK_GATE_UART0 BIT(0)
+ #define JZ_CLOCK_GATE_TCU BIT(1)
+@@ -90,6 +97,7 @@
+ #define JZ_CLOCK_PLL_M_OFFSET 23
+ #define JZ_CLOCK_PLL_N_OFFSET 18
+ #define JZ_CLOCK_PLL_OD_OFFSET 16
++#define JZ_CLOCK_PLL_STABILIZE_OFFSET 0
+
+ #define JZ_CLOCK_LOW_POWER_MODE_DOZE BIT(2)
+ #define JZ_CLOCK_LOW_POWER_MODE_SLEEP BIT(0)
+@@ -97,10 +105,15 @@
+ #define JZ_CLOCK_SLEEP_CTRL_SUSPEND_UHC BIT(7)
+ #define JZ_CLOCK_SLEEP_CTRL_ENABLE_UDC BIT(6)
+
++#define JZ_REG_EMC_RTCNT 0x88
++#define JZ_REG_EMC_RTCOR 0x8C
++
+ static void __iomem *jz_clock_base;
+ static spinlock_t jz_clock_lock;
+ static LIST_HEAD(jz_clocks);
+
++static void __iomem *jz_emc_base;
++
+ struct main_clk {
+ struct clk clk;
+ uint32_t div_offset;
+@@ -204,25 +217,88 @@ static int jz_clk_ko_is_enabled(struct clk *clk)
+ return !!(jz_clk_reg_read(JZ_REG_CLOCK_CTRL) & JZ_CLOCK_CTRL_KO_ENABLE);
+ }
+
++static struct static_clk jz_clk_ext;
++
++static unsigned long jz_clk_pll_calc_rate(
++ unsigned int in_div, unsigned int feedback, unsigned int out_div)
++{
++ return ((jz_clk_ext.rate / in_div) * feedback) / out_div;
++}
++
++static void jz_clk_pll_calc_dividers(unsigned long rate,
++ unsigned int *in_div, unsigned int *feedback, unsigned int *out_div)
++{
++ unsigned int target;
++
++ /* The frequency after the input divider must be between 1 and 15 MHz.
++ The highest divider yields the best resolution. */
++ *in_div = jz_clk_ext.rate / 1000000;
++ if (*in_div >= 34)
++ *in_div = 33;
++
++ /* The frequency before the output divider must be between 100 and
++ 500 MHz. The lowest target rate is more energy efficient. */
++ if (rate < 25000000) {
++ *out_div = 4;
++ target = 25000000 * 4;
++ } else if (rate <= 50000000) {
++ *out_div = 4;
++ target = rate * 4;
++ } else if (rate <= 100000000) {
++ *out_div = 2;
++ target = rate * 2;
++ } else if (rate <= 500000000) {
++ *out_div = 1;
++ target = rate;
++ } else {
++ *out_div = 1;
++ target = 500000000;
++ }
++
++ /* Compute the feedback divider.
++ Since the divided input is at least 1 MHz and the target frequency
++ at most 500 MHz, the feedback will be at most 500 and will therefore
++ always fit in the 9-bit register.
++ Similarly, the divided input is at most 15 MHz and the target
++ frequency at least 100 MHz, so the feedback will be at least 6
++ where the minimum supported value is 2. */
++ *feedback = ((target / 1000) * *in_div) / (jz_clk_ext.rate / 1000);
++}
++
++static unsigned long jz_clk_pll_round_rate(struct clk *clk, unsigned long rate)
++{
++ unsigned int in_div, feedback, out_div;
++ /* The PLL frequency must be a multiple of 24 MHz, since the LCD pixel
++ * clock must be exactly 12 MHz for the TV-out to work.
++ * TODO: A multiple of 12 MHz for the PLL would work if the PLL would
++ * not be divided by 2 before being passed to the set of derived
++ * clocks that includes the LCD pixel clock.
++ * TODO: Systemwide decisions like this should be made by the board
++ * support code, so add some kind of hook for that.
++ */
++ unsigned long rate24 = (rate / 24000000) * 24000000;
++
++ jz_clk_pll_calc_dividers(rate24, &in_div, &feedback, &out_div);
++ return jz_clk_pll_calc_rate(in_div, feedback, out_div);
++}
++
+ static const int pllno[] = {1, 2, 2, 4};
+
+ static unsigned long jz_clk_pll_get_rate(struct clk *clk)
+ {
+ uint32_t val;
+- int m;
+- int n;
+- int od;
++ unsigned int in_div, feedback, out_div;
+
+ val = jz_clk_reg_read(JZ_REG_CLOCK_PLL);
+
+ if (val & JZ_CLOCK_PLL_BYPASS)
+ return clk_get_rate(clk->parent);
+
+- m = ((val >> 23) & 0x1ff) + 2;
+- n = ((val >> 18) & 0x1f) + 2;
+- od = (val >> 16) & 0x3;
++ feedback = ((val >> 23) & 0x1ff) + 2;
++ in_div = ((val >> 18) & 0x1f) + 2;
++ out_div = pllno[(val >> 16) & 0x3];
+
+- return ((clk_get_rate(clk->parent) / n) * m) / pllno[od];
++ return jz_clk_pll_calc_rate(in_div, feedback, out_div);
+ }
+
+ static unsigned long jz_clk_pll_half_get_rate(struct clk *clk)
+@@ -235,7 +311,77 @@ static unsigned long jz_clk_pll_half_get_rate(struct clk *clk)
+ return jz_clk_pll_get_rate(clk->parent) >> 1;
+ }
+
+-static const int jz_clk_main_divs[] = {1, 2, 3, 4, 6, 8, 12, 16, 24, 32};
++#define SDRAM_TREF 15625 /* Refresh period: 4096 refresh cycles/64ms */
++
++static void sdram_set_pll(unsigned int pllin)
++{
++ unsigned int ns, sdramclock;
++
++ ns = 1000000000 / pllin;
++ sdramclock = (SDRAM_TREF / ns) / 64 + 1;
++ if (sdramclock > 0xff) sdramclock = 0xff;
++ /* Set refresh registers */
++ writew(sdramclock, jz_emc_base + JZ_REG_EMC_RTCOR);
++ writew(sdramclock, jz_emc_base + JZ_REG_EMC_RTCNT);
++}
++
++static int jz_clk_pll_set_rate(struct clk *clk, unsigned long rate)
++{
++ unsigned int ctrl, plcr1;
++ unsigned int feedback, in_div, out_div, pllout, pllout2;
++
++ jz_clk_pll_calc_dividers(rate, &in_div, &feedback, &out_div);
++
++ ctrl = jz_clk_reg_read(JZ_REG_CLOCK_CTRL);
++ pllout = jz_clk_pll_calc_rate(in_div, feedback, out_div);
++ pllout2 = (ctrl & JZ_CLOCK_CTRL_PLL_HALF) ? pllout : (pllout / 2);
++
++ /* Init UHC clock */
++ writel(pllout2 / 48000000 - 1, jz_clock_base + JZ_REG_CLOCK_UHC);
++
++ plcr1 = ((feedback - 2) << JZ_CLOCK_PLL_M_OFFSET) |
++ ((in_div - 2) << JZ_CLOCK_PLL_N_OFFSET) |
++ ((out_div - 1) << JZ_CLOCK_PLL_OD_OFFSET) |
++ (0x20 << JZ_CLOCK_PLL_STABILIZE_OFFSET) |
++ JZ_CLOCK_PLL_ENABLED;
++
++ sdram_set_pll(pllout);
++
++ /* LCD pixclock */
++ writel(pllout2 / 12000000 - 1, jz_clock_base + JZ_REG_CLOCK_LCD);
++
++ /* configure PLL */
++ __asm__ __volatile__(
++ ".set noreorder\n\t"
++ ".align 5\n"
++ "sw %1,0(%0)\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ ".set reorder\n\t"
++ :
++ : "r" (jz_clock_base + JZ_REG_CLOCK_PLL), "r" (plcr1));
++
++ /* MtH: For some reason the MSC will have problems if this flag is not
++ restored, even though the MSC is supposedly the only divider
++ that is not affected by this flag. */
++ jz_clk_reg_set_bits(JZ_REG_CLOCK_CTRL, JZ_CLOCK_CTRL_CHANGE_ENABLE);
++
++ return 0;
++}
++
++static const unsigned int jz_clk_main_divs[] = {
++ 1, 2, 3, 4, 6, 8, 12, 16, 24, 32
++};
++static const unsigned int jz_clk_main_divs_inv[] = {
++ -1, 0, 1, 2, 3, -1, 4, -1, 5, -1, -1, -1, 6, -1, -1, -1,
++ 7, -1, -1, -1, -1, -1, -1, -1, 8, -1, -1, -1, -1, -1, -1, -1,
++ 9
++};
+
+ static unsigned long jz_clk_main_round_rate(struct clk *clk, unsigned long rate)
+ {
+@@ -290,6 +436,64 @@ static int jz_clk_main_set_rate(struct clk *clk, unsigned long rate)
+ return 0;
+ }
+
++static struct main_clk jz_clk_cpu;
++
++int clk_main_set_dividers(bool immediate, unsigned int cdiv, unsigned int hdiv,
++ unsigned int mdiv, unsigned int pdiv)
++{
++ unsigned int cdiv_enc, hdiv_enc, mdiv_enc, pdiv_enc;
++ unsigned int ctrl;
++ unsigned int tmp, wait;
++
++ if (cdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) ||
++ hdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) ||
++ mdiv >= ARRAY_SIZE(jz_clk_main_divs_inv) ||
++ pdiv >= ARRAY_SIZE(jz_clk_main_divs_inv))
++ return -EINVAL;
++ cdiv_enc = jz_clk_main_divs_inv[cdiv];
++ hdiv_enc = jz_clk_main_divs_inv[hdiv];
++ mdiv_enc = jz_clk_main_divs_inv[mdiv];
++ pdiv_enc = jz_clk_main_divs_inv[pdiv];
++ if (cdiv_enc == (unsigned int)-1 ||
++ hdiv_enc == (unsigned int)-1 ||
++ mdiv_enc == (unsigned int)-1 ||
++ pdiv_enc == (unsigned int)-1)
++ return -EINVAL;
++
++ ctrl = jz_clk_reg_read(JZ_REG_CLOCK_CTRL);
++ ctrl &= ~(JZ_CLOCK_CTRL_CHANGE_ENABLE |
++ JZ_CLOCK_CTRL_CDIV_MASK | JZ_CLOCK_CTRL_HDIV_MASK |
++ JZ_CLOCK_CTRL_MDIV_MASK | JZ_CLOCK_CTRL_PDIV_MASK);
++ if (immediate) ctrl |= JZ_CLOCK_CTRL_CHANGE_ENABLE;
++ ctrl |= (cdiv_enc << JZ_CLOCK_CTRL_CDIV_OFFSET) |
++ (hdiv_enc << JZ_CLOCK_CTRL_HDIV_OFFSET) |
++ (mdiv_enc << JZ_CLOCK_CTRL_MDIV_OFFSET) |
++ (pdiv_enc << JZ_CLOCK_CTRL_PDIV_OFFSET);
++
++ /* set dividers */
++ /* delay loops lifted from the old Ingenic cpufreq driver */
++ wait = ((clk_get_rate(&jz_clk_cpu.clk) / 1000000) * 500) / 1000;
++ __asm__ __volatile__(
++ ".set noreorder\n\t"
++ ".align 5\n"
++ "sw %2,0(%1)\n\t"
++ "li %0,0\n\t"
++ "1:\n\t"
++ "bne %0,%3,1b\n\t"
++ "addi %0, 1\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ "nop\n\t"
++ ".set reorder\n\t"
++ : "=r" (tmp)
++ : "r" (jz_clock_base + JZ_REG_CLOCK_CTRL), "r" (ctrl),
++ "r" (wait));
++
++ return 0;
++}
++EXPORT_SYMBOL_GPL(clk_main_set_dividers);
++
+ static struct clk_ops jz_clk_static_ops = {
+ .get_rate = jz_clk_static_get_rate,
+ .enable = jz_clk_enable_gating,
+@@ -307,6 +511,8 @@ static struct static_clk jz_clk_ext = {
+
+ static struct clk_ops jz_clk_pll_ops = {
+ .get_rate = jz_clk_pll_get_rate,
++ .set_rate = jz_clk_pll_set_rate,
++ .round_rate = jz_clk_pll_round_rate,
+ };
+
+ static struct clk jz_clk_pll = {
+@@ -897,6 +1103,10 @@ static int jz4740_clock_init(void)
+ if (!jz_clock_base)
+ return -EBUSY;
+
++ jz_emc_base = ioremap(JZ4740_EMC_BASE_ADDR, 0x100);
++ if (!jz_emc_base)
++ return -EBUSY;
++
+ spin_lock_init(&jz_clock_lock);
+
+ jz_clk_ext.rate = jz4740_clock_bdata.ext_rate;
+diff --git a/arch/mips/jz4740/clock.h b/arch/mips/jz4740/clock.h
+index 5d07499..cc8d1db 100644
+--- a/arch/mips/jz4740/clock.h
++++ b/arch/mips/jz4740/clock.h
+@@ -17,6 +17,7 @@
+ #define __MIPS_JZ4740_CLOCK_H__
+
+ #include <linux/list.h>
++#include <linux/types.h>
+
+ struct jz4740_clock_board_data {
+ unsigned long ext_rate;
+@@ -63,6 +64,9 @@ struct clk {
+
+ int clk_is_enabled(struct clk *clk);
+
++int clk_main_set_dividers(bool immediate, unsigned int cdiv, unsigned int hdiv,
++ unsigned int mdiv, unsigned int pdiv);
++
+ #ifdef CONFIG_DEBUG_FS
+ void jz4740_clock_debugfs_init(void);
+ void jz4740_clock_debugfs_add_clk(struct clk *clk);
+--
+1.7.5.4
+
--- /dev/null
+From d0f0d5739a31c12d349980ed05a670fa1e84696d Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Wed, 16 Mar 2011 03:16:04 +0100
+Subject: [PATCH 12/21] MIPS: JZ4740: Add cpufreq support.
+
+This is a squashed version of Uli's driver that was further developed in the opendingux-kernel repository.
+---
+ arch/mips/Kconfig | 1 +
+ arch/mips/jz4740/Makefile | 1 +
+ arch/mips/jz4740/cpufreq.c | 226 ++++++++++++++++++++++++++++++++++++++
+ arch/mips/kernel/cpufreq/Kconfig | 13 ++-
+ 4 files changed, 240 insertions(+), 1 deletions(-)
+ create mode 100644 arch/mips/jz4740/cpufreq.c
+
+diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
+index d46f1da..8128df7 100644
+--- a/arch/mips/Kconfig
++++ b/arch/mips/Kconfig
+@@ -209,6 +209,7 @@ config MACH_JZ4740
+ select HAVE_PWM
+ select HAVE_CLK
+ select GENERIC_IRQ_CHIP
++ select CPU_SUPPORTS_CPUFREQ
+
+ config LANTIQ
+ bool "Lantiq based platforms"
+diff --git a/arch/mips/jz4740/Makefile b/arch/mips/jz4740/Makefile
+index a9dff33..15f828e 100644
+--- a/arch/mips/jz4740/Makefile
++++ b/arch/mips/jz4740/Makefile
+@@ -16,5 +16,6 @@ obj-$(CONFIG_JZ4740_QI_LB60) += board-qi_lb60.o
+ # PM support
+
+ obj-$(CONFIG_PM) += pm.o
++obj-$(CONFIG_CPU_FREQ_JZ) += cpufreq.o
+
+ ccflags-y := -Werror -Wall
+diff --git a/arch/mips/jz4740/cpufreq.c b/arch/mips/jz4740/cpufreq.c
+new file mode 100644
+index 0000000..aa41e9f
+--- /dev/null
++++ b/arch/mips/jz4740/cpufreq.c
+@@ -0,0 +1,226 @@
++/*
++ * linux/arch/mips/jz4740/cpufreq.c
++ *
++ * cpufreq driver for JZ4740
++ *
++ * Copyright (c) 2010 Ulrich Hecht <ulrich.hecht@gmail.com>
++ * Copyright (c) 2010 Maarten ter Huurne <maarten@treewalker.org>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/err.h>
++
++#include <linux/cpufreq.h>
++
++#include <linux/clk.h>
++#include <asm/mach-jz4740/base.h>
++
++#include "clock.h"
++
++#define DEBUG_CPUFREQ
++
++#ifdef DEBUG_CPUFREQ
++#define dprintk(X...) printk(KERN_INFO X)
++#else
++#define dprintk(X...) do { } while(0)
++#endif
++
++#define HCLK_MIN 30000
++/* TODO: The maximum MCLK most likely depends on the SDRAM chips used,
++ so it is board-specific. */
++#define MCLK_MAX 140000
++
++/* Same as jz_clk_main_divs, but with 24 and 32 removed because the hardware
++ spec states those dividers must not be used for CCLK or HCLK. */
++static const unsigned int jz4740_freq_cpu_divs[] = {1, 2, 3, 4, 6, 8, 12, 16};
++
++struct jz4740_freq_percpu_info {
++ unsigned int pll_rate;
++ struct cpufreq_frequency_table table[
++ ARRAY_SIZE(jz4740_freq_cpu_divs) + 1];
++};
++
++static struct clk *pll;
++static struct clk *cclk;
++
++static struct jz4740_freq_percpu_info jz4740_freq_info;
++
++static struct cpufreq_driver cpufreq_jz4740_driver;
++
++static void jz4740_freq_fill_table(struct cpufreq_policy *policy,
++ unsigned int pll_rate)
++{
++ struct cpufreq_frequency_table *table = &jz4740_freq_info.table[0];
++ int i;
++
++#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
++ /* for showing /sys/devices/system/cpu/cpuX/cpufreq/stats/ */
++ static bool init = false;
++ if (init)
++ cpufreq_frequency_table_put_attr(policy->cpu);
++ else
++ init = true;
++#endif
++
++ jz4740_freq_info.pll_rate = pll_rate;
++
++ for (i = 0; i < ARRAY_SIZE(jz4740_freq_cpu_divs); i++) {
++ unsigned int freq = pll_rate / jz4740_freq_cpu_divs[i];
++ if (freq < HCLK_MIN) break;
++ table[i].index = i;
++ table[i].frequency = freq;
++ }
++ table[i].index = i;
++ table[i].frequency = CPUFREQ_TABLE_END;
++
++ policy->min = table[i - 1].frequency;
++ policy->max = table[0].frequency;
++
++#ifdef CONFIG_CPU_FREQ_STAT_DETAILS
++ cpufreq_frequency_table_get_attr(table, policy->cpu);
++#endif
++}
++
++static unsigned int jz4740_freq_get(unsigned int cpu)
++{
++ return clk_get_rate(cclk) / 1000;
++}
++
++static int jz4740_freq_verify(struct cpufreq_policy *policy)
++{
++ unsigned int new_pll;
++
++ cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
++ policy->cpuinfo.max_freq);
++
++ new_pll = clk_round_rate(pll, policy->max * 1000) / 1000;
++ if (jz4740_freq_info.pll_rate != new_pll)
++ jz4740_freq_fill_table(policy, new_pll);
++
++ return 0;
++}
++
++static int jz4740_freq_target(struct cpufreq_policy *policy,
++ unsigned int target_freq,
++ unsigned int relation)
++{
++ struct cpufreq_frequency_table *table = &jz4740_freq_info.table[0];
++ struct cpufreq_freqs freqs;
++ unsigned int new_index = 0;
++ unsigned int old_pll = clk_get_rate(pll) / 1000;
++ unsigned int new_pll = jz4740_freq_info.pll_rate;
++ int ret = 0;
++
++ if (cpufreq_frequency_table_target(policy, table,
++ target_freq, relation, &new_index))
++ return -EINVAL;
++ freqs = (struct cpufreq_freqs) {
++ .old = jz4740_freq_get(policy->cpu),
++ .new = table[new_index].frequency,
++ .cpu = policy->cpu,
++ .flags = cpufreq_jz4740_driver.flags,
++ };
++ if (freqs.new != freqs.old || new_pll != old_pll) {
++ unsigned int cdiv, hdiv, mdiv, pdiv;
++ cdiv = jz4740_freq_cpu_divs[new_index];
++ hdiv = (cdiv == 3 || cdiv == 6) ? cdiv * 2 : cdiv * 3;
++ while (new_pll < HCLK_MIN * hdiv)
++ hdiv -= cdiv;
++ mdiv = hdiv;
++ if (new_pll > MCLK_MAX * mdiv) {
++ /* 4,4 performs better than 3,6 */
++ if (new_pll > MCLK_MAX * 4)
++ mdiv *= 2;
++ else
++ hdiv = mdiv = cdiv * 4;
++ }
++ pdiv = mdiv;
++ dprintk(KERN_INFO "%s: cclk %p, setting from %d to %d, "
++ "dividers %d, %d, %d, %d\n",
++ __FUNCTION__, cclk, freqs.old, freqs.new,
++ cdiv, hdiv, mdiv, pdiv);
++ cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
++ ret = clk_main_set_dividers(new_pll == old_pll,
++ cdiv, hdiv, mdiv, pdiv);
++ if (ret) {
++ dprintk(KERN_INFO "failed to set dividers\n");
++ } else if (new_pll != old_pll) {
++ dprintk(KERN_INFO "%s: pll %p, setting from %d to %d\n",
++ __FUNCTION__, pll, old_pll, new_pll);
++ ret = clk_set_rate(pll, new_pll * 1000);
++ }
++ cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
++ }
++
++ return ret;
++}
++
++static int jz4740_cpufreq_driver_init(struct cpufreq_policy *policy)
++{
++ int ret;
++
++ dprintk(KERN_INFO "Jz4740 cpufreq driver\n");
++
++ if (policy->cpu != 0)
++ return -EINVAL;
++
++ pll = clk_get(NULL, "pll");
++ if (IS_ERR(pll)) {
++ ret = PTR_ERR(pll);
++ goto err_exit;
++ }
++
++ cclk = clk_get(NULL, "cclk");
++ if (IS_ERR(cclk)) {
++ ret = PTR_ERR(cclk);
++ goto err_clk_put_pll;
++ }
++
++ policy->cpuinfo.min_freq = HCLK_MIN;
++ policy->cpuinfo.max_freq = 500000;
++ policy->cpuinfo.transition_latency = 100000; /* in nanoseconds */
++ policy->cur = jz4740_freq_get(policy->cpu);
++ policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
++ /* min and max are set by jz4740_freq_fill_table() */
++
++ jz4740_freq_fill_table(policy, clk_get_rate(pll) / 1000 /* in kHz */);
++
++ return 0;
++
++err_clk_put_pll:
++ clk_put(pll);
++err_exit:
++ return ret;
++}
++
++static struct cpufreq_driver cpufreq_jz4740_driver = {
++ .init = jz4740_cpufreq_driver_init,
++ .verify = jz4740_freq_verify,
++ .target = jz4740_freq_target,
++ .get = jz4740_freq_get,
++ .name = "jz4740",
++};
++
++static int __init jz4740_cpufreq_init(void)
++{
++ return cpufreq_register_driver(&cpufreq_jz4740_driver);
++}
++
++static void __exit jz4740_cpufreq_exit(void)
++{
++ cpufreq_unregister_driver(&cpufreq_jz4740_driver);
++}
++
++module_init(jz4740_cpufreq_init);
++module_exit(jz4740_cpufreq_exit);
++
++MODULE_AUTHOR("Ulrich Hecht <ulrich.hecht@gmail.com>, "
++ "Maarten ter Huurne <maarten@treewalker.org>");
++MODULE_DESCRIPTION("cpufreq driver for Jz4740");
++MODULE_LICENSE("GPL");
+diff --git a/arch/mips/kernel/cpufreq/Kconfig b/arch/mips/kernel/cpufreq/Kconfig
+index 58c601e..11af8e8 100644
+--- a/arch/mips/kernel/cpufreq/Kconfig
++++ b/arch/mips/kernel/cpufreq/Kconfig
+@@ -8,7 +8,7 @@ config MIPS_EXTERNAL_TIMER
+ config MIPS_CPUFREQ
+ bool
+ default y
+- depends on CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
++ depends on CPU_SUPPORTS_CPUFREQ
+
+ if MIPS_CPUFREQ
+
+@@ -24,6 +24,7 @@ config LOONGSON2_CPUFREQ
+ tristate "Loongson2 CPUFreq Driver"
+ select CPU_FREQ_TABLE
+ depends on MIPS_CPUFREQ
++ depends on MIPS_EXTERNAL_TIMER
+ help
+ This option adds a CPUFreq driver for loongson processors which
+ support software configurable cpu frequency.
+@@ -34,6 +35,16 @@ config LOONGSON2_CPUFREQ
+
+ If in doubt, say N.
+
++config CPU_FREQ_JZ
++ tristate "CPUfreq driver for JZ CPUs"
++ select CPU_FREQ_TABLE
++ depends on MACH_JZ4740
++ default n
++ help
++ This enables the CPUfreq driver for JZ CPUs.
++
++ If in doubt, say N.
++
+ endif # CPU_FREQ
+
+ endmenu
+--
+1.7.5.4
+
--- /dev/null
+From b95144c1b702f98c7902c75beb83f323701eb7c5 Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Sun, 19 Jun 2011 10:57:18 +0200
+Subject: [PATCH 13/21] MMC: JZ4740: Added support for CPU frequency changing.
+
+The MSC device clock is stopped before the frequency change.
+After the change a new divider is computed and the clock is restarted.
+Also the frequency change is postponed if an I/O operation is in progress.
+---
+ drivers/mmc/host/jz4740_mmc.c | 69 +++++++++++++++++++++++++++++++++++++++-
+ 1 files changed, 67 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
+index 74218ad..6e40f1b 100644
+--- a/drivers/mmc/host/jz4740_mmc.c
++++ b/drivers/mmc/host/jz4740_mmc.c
+@@ -23,6 +23,7 @@
+ #include <linux/delay.h>
+ #include <linux/scatterlist.h>
+ #include <linux/clk.h>
++#include <linux/cpufreq.h>
+
+ #include <linux/bitops.h>
+ #include <linux/gpio.h>
+@@ -685,6 +686,60 @@ static void jz4740_mmc_enable_sdio_irq(struct mmc_host *mmc, int enable)
+ jz4740_mmc_set_irq_enabled(host, JZ_MMC_IRQ_SDIO, enable);
+ }
+
++#ifdef CONFIG_CPU_FREQ
++
++static struct jz4740_mmc_host *cpufreq_host;
++
++static int jz4740_mmc_cpufreq_transition(struct notifier_block *nb,
++ unsigned long val, void *data)
++{
++ /* TODO: We only have to take action when the PLL freq changes:
++ the main dividers have no influence on the MSC device clock. */
++
++ if (val == CPUFREQ_PRECHANGE) {
++ mmc_claim_host(cpufreq_host->mmc);
++ clk_disable(cpufreq_host->clk);
++ } else if (val == CPUFREQ_POSTCHANGE) {
++ struct mmc_ios *ios = &cpufreq_host->mmc->ios;
++ if (ios->clock)
++ jz4740_mmc_set_clock_rate(cpufreq_host, ios->clock);
++ if (ios->power_mode != MMC_POWER_OFF)
++ clk_enable(cpufreq_host->clk);
++ mmc_release_host(cpufreq_host->mmc);
++ }
++ return 0;
++}
++
++static struct notifier_block jz4740_mmc_cpufreq_nb = {
++ .notifier_call = jz4740_mmc_cpufreq_transition,
++};
++
++static inline int jz4740_mmc_cpufreq_register(struct jz4740_mmc_host *host)
++{
++ cpufreq_host = host;
++ return cpufreq_register_notifier(&jz4740_mmc_cpufreq_nb,
++ CPUFREQ_TRANSITION_NOTIFIER);
++}
++
++static inline void jz4740_mmc_cpufreq_unregister(void)
++{
++ cpufreq_unregister_notifier(&jz4740_mmc_cpufreq_nb,
++ CPUFREQ_TRANSITION_NOTIFIER);
++}
++
++#else
++
++static inline int jz4740_mmc_cpufreq_register(struct jz4740_mmc_host *host)
++{
++ return 0;
++}
++
++static inline void jz4740_mmc_cpufreq_unregister(void)
++{
++}
++
++#endif
++
+ static const struct mmc_host_ops jz4740_mmc_ops = {
+ .request = jz4740_mmc_request,
+ .set_ios = jz4740_mmc_set_ios,
+@@ -834,11 +889,18 @@ static int __devinit jz4740_mmc_probe(struct platform_device* pdev)
+ goto err_free_host;
+ }
+
++ ret = jz4740_mmc_cpufreq_register(host);
++ if (ret) {
++ dev_err(&pdev->dev,
++ "Failed to register cpufreq transition notifier\n");
++ goto err_clk_put;
++ }
++
+ host->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!host->mem) {
+ ret = -ENOENT;
+ dev_err(&pdev->dev, "Failed to get base platform memory\n");
+- goto err_clk_put;
++ goto err_cpufreq_unreg;
+ }
+
+ host->mem = request_mem_region(host->mem->start,
+@@ -846,7 +908,7 @@ static int __devinit jz4740_mmc_probe(struct platform_device* pdev)
+ if (!host->mem) {
+ ret = -EBUSY;
+ dev_err(&pdev->dev, "Failed to request base memory region\n");
+- goto err_clk_put;
++ goto err_cpufreq_unreg;
+ }
+
+ host->base = ioremap_nocache(host->mem->start, resource_size(host->mem));
+@@ -929,6 +991,8 @@ err_iounmap:
+ iounmap(host->base);
+ err_release_mem_region:
+ release_mem_region(host->mem->start, resource_size(host->mem));
++err_cpufreq_unreg:
++ jz4740_mmc_cpufreq_unregister();
+ err_clk_put:
+ clk_put(host->clk);
+ err_free_host:
+@@ -958,6 +1022,7 @@ static int __devexit jz4740_mmc_remove(struct platform_device *pdev)
+ iounmap(host->base);
+ release_mem_region(host->mem->start, resource_size(host->mem));
+
++ jz4740_mmc_cpufreq_unregister();
+ clk_put(host->clk);
+
+ platform_set_drvdata(pdev, NULL);
+--
+1.7.5.4
+
--- /dev/null
+From 2dcb0ca66d0bffc23d5f001fad81fb1a7a2c371b Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Tue, 28 Jun 2011 22:28:59 +0200
+Subject: [PATCH 14/21] MIPS: JZ4740: reset: Initialize hibernate wakeup
+ counters.
+
+In hibernation mode only the wakeup logic and the RTC are left running,
+so this is what users perceive as power down.
+
+If the counters are not initialized, the corresponding pin (typically
+connected to the power button) has to be asserted for two seconds
+before the device wakes up. Most users expect a shorter wakeup time.
+
+I took the timing values of 100 ms and 60 ms from BouKiCHi's patch for
+the Dingoo A320 kernel.
+---
+ arch/mips/jz4740/reset.c | 46 ++++++++++++++++++++++++++++++++++++++++------
+ 1 files changed, 40 insertions(+), 6 deletions(-)
+
+diff --git a/arch/mips/jz4740/reset.c b/arch/mips/jz4740/reset.c
+index 5f1fb95..e6d1d7b 100644
+--- a/arch/mips/jz4740/reset.c
++++ b/arch/mips/jz4740/reset.c
+@@ -21,6 +21,9 @@
+ #include <asm/mach-jz4740/base.h>
+ #include <asm/mach-jz4740/timer.h>
+
++#include "reset.h"
++#include "clock.h"
++
+ static void jz4740_halt(void)
+ {
+ while (1) {
+@@ -53,21 +56,52 @@ static void jz4740_restart(char *command)
+ jz4740_halt();
+ }
+
+-#define JZ_REG_RTC_CTRL 0x00
+-#define JZ_REG_RTC_HIBERNATE 0x20
++#define JZ_REG_RTC_CTRL 0x00
++#define JZ_REG_RTC_HIBERNATE 0x20
++#define JZ_REG_RTC_WAKEUP_FILTER 0x24
++#define JZ_REG_RTC_RESET_COUNTER 0x28
+
+-#define JZ_RTC_CTRL_WRDY BIT(7)
++#define JZ_RTC_CTRL_WRDY BIT(7)
++#define JZ_RTC_WAKEUP_FILTER_MASK 0x0000FFE0
++#define JZ_RTC_RESET_COUNTER_MASK 0x00000FE0
+
+-static void jz4740_power_off(void)
++static inline void jz4740_rtc_wait_ready(void __iomem *rtc_base)
+ {
+- void __iomem *rtc_base = ioremap(JZ4740_RTC_BASE_ADDR, 0x24);
+ uint32_t ctrl;
+-
+ do {
+ ctrl = readl(rtc_base + JZ_REG_RTC_CTRL);
+ } while (!(ctrl & JZ_RTC_CTRL_WRDY));
++}
+
++static void jz4740_power_off(void)
++{
++ void __iomem *rtc_base = ioremap(JZ4740_RTC_BASE_ADDR, 0x38);
++ unsigned long long wakeup_filter_ticks;
++ unsigned long long reset_counter_ticks;
++
++ /* Set minimum wakeup pin assertion time: 100 ms.
++ Range is 0 to 2 sec if RTC is clocked at 32 kHz. */
++ wakeup_filter_ticks = (100 * jz4740_clock_bdata.rtc_rate) / 1000;
++ if (wakeup_filter_ticks < JZ_RTC_WAKEUP_FILTER_MASK)
++ wakeup_filter_ticks &= JZ_RTC_WAKEUP_FILTER_MASK;
++ else
++ wakeup_filter_ticks = JZ_RTC_WAKEUP_FILTER_MASK;
++ jz4740_rtc_wait_ready(rtc_base);
++ writel(wakeup_filter_ticks, rtc_base + JZ_REG_RTC_WAKEUP_FILTER);
++
++ /* Set reset pin low-level assertion time after wakeup: 60 ms.
++ Range is 0 to 125 ms if RTC is clocked at 32 kHz. */
++ reset_counter_ticks = (60 * jz4740_clock_bdata.rtc_rate) / 1000;
++ if (reset_counter_ticks < JZ_RTC_RESET_COUNTER_MASK)
++ reset_counter_ticks &= JZ_RTC_RESET_COUNTER_MASK;
++ else
++ reset_counter_ticks = JZ_RTC_RESET_COUNTER_MASK;
++ jz4740_rtc_wait_ready(rtc_base);
++ writel(reset_counter_ticks, rtc_base + JZ_REG_RTC_RESET_COUNTER);
++
++ jz4740_rtc_wait_ready(rtc_base);
+ writel(1, rtc_base + JZ_REG_RTC_HIBERNATE);
++
+ jz4740_halt();
+ }
+
+--
+1.7.5.4
+
--- /dev/null
+From 515f8006c03e1065bf98c9148a9ea787e2d120d3 Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Wed, 10 Aug 2011 00:20:16 +0200
+Subject: [PATCH 15/21] ASoC: JZ4740: Replaced comma operators with
+ semicolons.
+
+They were harmless but also unnecessary, probably a leftover from earlier code.
+---
+ sound/soc/jz4740/jz4740-i2s.c | 4 ++--
+ 1 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/sound/soc/jz4740/jz4740-i2s.c b/sound/soc/jz4740/jz4740-i2s.c
+index cd22a54..d28b4cc 100644
+--- a/sound/soc/jz4740/jz4740-i2s.c
++++ b/sound/soc/jz4740/jz4740-i2s.c
+@@ -346,7 +346,7 @@ static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
+
+ /* Playback */
+ dma_config = &i2s->pcm_config_playback.dma_config;
+- dma_config->src_width = JZ4740_DMA_WIDTH_32BIT,
++ dma_config->src_width = JZ4740_DMA_WIDTH_32BIT;
+ dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
+ dma_config->request_type = JZ4740_DMA_TYPE_AIC_TRANSMIT;
+ dma_config->flags = JZ4740_DMA_SRC_AUTOINC;
+@@ -355,7 +355,7 @@ static void jz4740_i2c_init_pcm_config(struct jz4740_i2s *i2s)
+
+ /* Capture */
+ dma_config = &i2s->pcm_config_capture.dma_config;
+- dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT,
++ dma_config->dst_width = JZ4740_DMA_WIDTH_32BIT;
+ dma_config->transfer_size = JZ4740_DMA_TRANSFER_SIZE_16BYTE;
+ dma_config->request_type = JZ4740_DMA_TYPE_AIC_RECEIVE;
+ dma_config->flags = JZ4740_DMA_DST_AUTOINC;
+--
+1.7.5.4
+
--- /dev/null
+From 8a5087fe59e31efb8641e704058328997c3c8ff1 Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Wed, 10 Aug 2011 00:25:11 +0200
+Subject: [PATCH 16/21] ASoC: JZ4740: Support buffer size that is not a
+ multiple of period size.
+
+This fixes glitches triggered by libao, which sets time-based intervals
+instead of byte-based intervals like SDL does.
+
+Thanks to Paul Cercueil for figuring out that the buffer size was causing
+the glitches and to Lars Clausen for helping me write the fix.
+---
+ sound/soc/jz4740/jz4740-pcm.c | 21 ++++++++++++++++++---
+ 1 files changed, 18 insertions(+), 3 deletions(-)
+
+diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
+index d1989cd..1f9a005 100644
+--- a/sound/soc/jz4740/jz4740-pcm.c
++++ b/sound/soc/jz4740/jz4740-pcm.c
+@@ -31,6 +31,7 @@
+
+ struct jz4740_runtime_data {
+ unsigned long dma_period;
++ unsigned long dma_period_left;
+ dma_addr_t dma_start;
+ dma_addr_t dma_pos;
+ dma_addr_t dma_end;
+@@ -67,10 +68,13 @@ static void jz4740_pcm_start_transfer(struct jz4740_runtime_data *prtd,
+ if (prtd->dma_pos == prtd->dma_end)
+ prtd->dma_pos = prtd->dma_start;
+
+- if (prtd->dma_pos + prtd->dma_period > prtd->dma_end)
++ if (prtd->dma_period_left == 0)
++ prtd->dma_period_left = prtd->dma_period;
++
++ if (prtd->dma_pos + prtd->dma_period_left > prtd->dma_end)
+ count = prtd->dma_end - prtd->dma_pos;
+ else
+- count = prtd->dma_period;
++ count = prtd->dma_period_left;
+
+ jz4740_dma_disable(prtd->dma);
+
+@@ -85,6 +89,7 @@ static void jz4740_pcm_start_transfer(struct jz4740_runtime_data *prtd,
+ jz4740_dma_set_transfer_count(prtd->dma, count);
+
+ prtd->dma_pos += count;
++ prtd->dma_period_left -= count;
+
+ jz4740_dma_enable(prtd->dma);
+ }
+@@ -96,7 +101,8 @@ static void jz4740_pcm_dma_transfer_done(struct jz4740_dma_chan *dma, int err,
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct jz4740_runtime_data *prtd = runtime->private_data;
+
+- snd_pcm_period_elapsed(substream);
++ if (prtd->dma_period_left == 0)
++ snd_pcm_period_elapsed(substream);
+
+ jz4740_pcm_start_transfer(prtd, substream);
+ }
+@@ -133,6 +139,7 @@ static int jz4740_pcm_hw_params(struct snd_pcm_substream *substream,
+ runtime->dma_bytes = params_buffer_bytes(params);
+
+ prtd->dma_period = params_period_bytes(params);
++ prtd->dma_period_left = 0;
+ prtd->dma_start = runtime->dma_addr;
+ prtd->dma_pos = prtd->dma_start;
+ prtd->dma_end = prtd->dma_start + runtime->dma_bytes;
+@@ -160,6 +167,7 @@ static int jz4740_pcm_prepare(struct snd_pcm_substream *substream)
+ if (!prtd->dma)
+ return -EBUSY;
+
++ prtd->dma_period_left = 0;
+ prtd->dma_pos = prtd->dma_start;
+
+ return 0;
+@@ -219,6 +227,13 @@ static int jz4740_pcm_open(struct snd_pcm_substream *substream)
+ if (prtd == NULL)
+ return -ENOMEM;
+
++ /* Force period and buffer size to be a multiple of the DMA transfer
++ * size, which is 16 bytes. */
++ snd_pcm_hw_constraint_step(runtime, 0,
++ SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 16);
++ snd_pcm_hw_constraint_step(runtime, 0,
++ SNDRV_PCM_HW_PARAM_BUFFER_BYTES, 16);
++
+ snd_soc_set_runtime_hwparams(substream, &jz4740_pcm_hardware);
+
+ runtime->private_data = prtd;
+--
+1.7.5.4
+
--- /dev/null
+From cdb15b56aa9517a8cdbd14724088227514622a1b Mon Sep 17 00:00:00 2001
+From: Maarten ter Huurne <maarten@treewalker.org>
+Date: Wed, 11 Jan 2012 22:36:03 +0100
+Subject: [PATCH 17/21] MIPS: JZ4740: qi_lb60: Look for NAND chip in bank 1.
+
+All NanoNotes have their NAND in bank 1.
+Specifying the bank is required since commit e7ca5a665877a030.
+---
+ arch/mips/jz4740/board-qi_lb60.c | 1 +
+ 1 files changed, 1 insertions(+), 0 deletions(-)
+
+diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
+index b622941..f2d94c1 100644
+--- a/arch/mips/jz4740/board-qi_lb60.c
++++ b/arch/mips/jz4740/board-qi_lb60.c
+@@ -140,6 +140,7 @@ static void qi_lb60_nand_ident(struct platform_device *pdev,
+ static struct jz_nand_platform_data qi_lb60_nand_pdata = {
+ .ident_callback = qi_lb60_nand_ident,
+ .busy_gpio = 94,
++ .banks = { 1 },
+ };
+
+ /* Keyboard*/
+--
+1.7.5.4
+
--- /dev/null
+From 94f2b91d2a42854a8869d54a758bc88757d7f6d9 Mon Sep 17 00:00:00 2001
+From: Axel Lin <axel.lin@gmail.com>
+Date: Fri, 6 Jan 2012 11:30:10 +0800
+Subject: [PATCH 18/21] ASoC: jz4740: Convert qi_lb60 to use
+ snd_soc_register_card()
+
+Use snd_soc_register_card() instead of creating a "soc-audio" platform device.
+
+Signed-off-by: Axel Lin <axel.lin@gmail.com>
+---
+ arch/mips/jz4740/board-qi_lb60.c | 6 ++++
+ sound/soc/jz4740/qi_lb60.c | 56 +++++++++++++++++--------------------
+ 2 files changed, 32 insertions(+), 30 deletions(-)
+
+diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
+index f2d94c1..be14dfb 100644
+--- a/arch/mips/jz4740/board-qi_lb60.c
++++ b/arch/mips/jz4740/board-qi_lb60.c
+@@ -418,6 +418,11 @@ static struct platform_device qi_lb60_charger_device = {
+ },
+ };
+
++/* audio */
++static struct platform_device qi_lb60_audio_device = {
++ .name = "qi-lb60-audio",
++ .id = -1,
++};
+
+ static struct platform_device *jz_platform_devices[] __initdata = {
+ &jz4740_udc_device,
+@@ -434,6 +439,7 @@ static struct platform_device *jz_platform_devices[] __initdata = {
+ &qi_lb60_gpio_keys,
+ &qi_lb60_pwm_beeper,
+ &qi_lb60_charger_device,
++ &qi_lb60_audio_device,
+ };
+
+ static void __init board_gpio_setup(void)
+diff --git a/sound/soc/jz4740/qi_lb60.c b/sound/soc/jz4740/qi_lb60.c
+index c5fc339..67ddbdd 100644
+--- a/sound/soc/jz4740/qi_lb60.c
++++ b/sound/soc/jz4740/qi_lb60.c
+@@ -90,56 +90,52 @@ static struct snd_soc_card qi_lb60 = {
+ .num_dapm_routes = ARRAY_SIZE(qi_lb60_routes),
+ };
+
+-static struct platform_device *qi_lb60_snd_device;
+-
+ static const struct gpio qi_lb60_gpios[] = {
+ { QI_LB60_SND_GPIO, GPIOF_OUT_INIT_LOW, "SND" },
+ { QI_LB60_AMP_GPIO, GPIOF_OUT_INIT_LOW, "AMP" },
+ };
+
+-static int __init qi_lb60_init(void)
++static int __devinit qi_lb60_probe(struct platform_device *pdev)
+ {
++ struct snd_soc_card *card = &qi_lb60;
+ int ret;
+
+- qi_lb60_snd_device = platform_device_alloc("soc-audio", -1);
+-
+- if (!qi_lb60_snd_device)
+- return -ENOMEM;
+-
+ ret = gpio_request_array(qi_lb60_gpios, ARRAY_SIZE(qi_lb60_gpios));
+- if (ret) {
+- pr_err("qi_lb60 snd: Failed to request gpios: %d\n", ret);
+- goto err_device_put;
+- }
++ if (ret)
++ return ret;
+
+- platform_set_drvdata(qi_lb60_snd_device, &qi_lb60);
++ card->dev = &pdev->dev;
+
+- ret = platform_device_add(qi_lb60_snd_device);
++ ret = snd_soc_register_card(card);
+ if (ret) {
+- pr_err("qi_lb60 snd: Failed to add snd soc device: %d\n", ret);
+- goto err_unset_pdata;
++ dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
++ ret);
++ gpio_free_array(qi_lb60_gpios, ARRAY_SIZE(qi_lb60_gpios));
+ }
+-
+- return 0;
+-
+-err_unset_pdata:
+- platform_set_drvdata(qi_lb60_snd_device, NULL);
+-/*err_gpio_free_array:*/
+- gpio_free_array(qi_lb60_gpios, ARRAY_SIZE(qi_lb60_gpios));
+-err_device_put:
+- platform_device_put(qi_lb60_snd_device);
+-
+ return ret;
+ }
+-module_init(qi_lb60_init);
+
+-static void __exit qi_lb60_exit(void)
++static int __devexit qi_lb60_remove(struct platform_device *pdev)
+ {
+- platform_device_unregister(qi_lb60_snd_device);
++ struct snd_soc_card *card = platform_get_drvdata(pdev);
++
++ snd_soc_unregister_card(card);
+ gpio_free_array(qi_lb60_gpios, ARRAY_SIZE(qi_lb60_gpios));
++ return 0;
+ }
+-module_exit(qi_lb60_exit);
++
++static struct platform_driver qi_lb60_driver = {
++ .driver = {
++ .name = "qi-lb60-audio",
++ .owner = THIS_MODULE,
++ },
++ .probe = qi_lb60_probe,
++ .remove = __devexit_p(qi_lb60_remove),
++};
++
++module_platform_driver(qi_lb60_driver);
+
+ MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+ MODULE_DESCRIPTION("ALSA SoC QI LB60 Audio support");
+ MODULE_LICENSE("GPL v2");
++MODULE_ALIAS("platform:qi-lb60-audio");
+--
+1.7.5.4
+
--- /dev/null
+From 159c4d81899db05a57bc4a0d55083e484c3d8a43 Mon Sep 17 00:00:00 2001
+From: Lars-Peter Clausen <lars@metafoo.de>
+Date: Sat, 24 Apr 2010 12:23:28 +0200
+Subject: [PATCH 19/21] Framebuffer notifier: Call notifier callbacks prior to
+ blanking the screen
+
+---
+ drivers/video/fbmem.c | 8 ++++++--
+ 1 files changed, 6 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
+index ad93629..e13e6bf 100644
+--- a/drivers/video/fbmem.c
++++ b/drivers/video/fbmem.c
+@@ -1032,12 +1032,12 @@ fb_set_var(struct fb_info *info, struct fb_var_screeninfo *var)
+ int
+ fb_blank(struct fb_info *info, int blank)
+ {
+- int ret = -EINVAL;
++ int ret = 0;
+
+ if (blank > FB_BLANK_POWERDOWN)
+ blank = FB_BLANK_POWERDOWN;
+
+- if (info->fbops->fb_blank)
++ if (info->fbops->fb_blank && blank == FB_BLANK_UNBLANK)
+ ret = info->fbops->fb_blank(blank, info);
+
+ if (!ret) {
+@@ -1048,6 +1048,10 @@ fb_blank(struct fb_info *info, int blank)
+ fb_notifier_call_chain(FB_EVENT_BLANK, &event);
+ }
+
++ if (info->fbops->fb_blank && blank != FB_BLANK_UNBLANK)
++ ret = info->fbops->fb_blank(blank, info);
++
++
+ return ret;
+ }
+
+--
+1.7.5.4
+
--- /dev/null
+From 1d7ef3445db5aebf48c90b20e18630633623c750 Mon Sep 17 00:00:00 2001
+From: Xiangfu Liu <xiangfu@macbook.(none)>
+Date: Fri, 19 Aug 2011 15:46:52 +0800
+Subject: [PATCH 20/21] qi_lb60: NAND: add data partition
+
+---
+ arch/mips/jz4740/board-qi_lb60.c | 7 ++++++-
+ 1 files changed, 6 insertions(+), 1 deletions(-)
+
+diff --git a/arch/mips/jz4740/board-qi_lb60.c b/arch/mips/jz4740/board-qi_lb60.c
+index be14dfb..4e24b95 100644
+--- a/arch/mips/jz4740/board-qi_lb60.c
++++ b/arch/mips/jz4740/board-qi_lb60.c
+@@ -118,8 +118,13 @@ static struct mtd_partition qi_lb60_partitions_2gb[] = {
+ {
+ .name = "NAND ROOTFS partition",
+ .offset = 8 * 0x100000,
+- .size = (504 + 512 + 1024) * 0x100000,
++ .size = 512 * 0x100000,
+ },
++ {
++ .name = "NAND DATA partition",
++ .offset = 520 * 0x100000,
++ .size = 1528 * 0x100000,
++ },
+ };
+
+ static void qi_lb60_nand_ident(struct platform_device *pdev,
+--
+1.7.5.4
+
--- /dev/null
+From a37ca6eb8cb52d620feff3323a3be4da24f5bee8 Mon Sep 17 00:00:00 2001
+From: Xiangfu <xiangfu@openmobilefree.net>
+Date: Fri, 16 Mar 2012 17:48:45 +0800
+Subject: [PATCH 21/21] rtc: jz4740 fix hwclock give time out
+
+---
+ drivers/rtc/rtc-jz4740.c | 2 ++
+ 1 files changed, 2 insertions(+), 0 deletions(-)
+
+diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
+index b647363..50c5df0 100644
+--- a/drivers/rtc/rtc-jz4740.c
++++ b/drivers/rtc/rtc-jz4740.c
+@@ -280,6 +280,8 @@ static int __devinit jz4740_rtc_probe(struct platform_device *pdev)
+ }
+ }
+
++ jz4740_rtc_ctrl_set_bits(rtc, JZ_RTC_CTRL_1HZ_IRQ, 1);
++
+ return 0;
+
+ err_free_irq:
+--
+1.7.5.4
+
+++ /dev/null
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
-CONFIG_FB_JZ4740=y
-# CONFIG_FB_TMIO is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_INPUT_PWM_BEEPER=y
-CONFIG_JZ4740_QI_LB60=y
-CONFIG_KEYBOARD_GPIO=y
-CONFIG_KEYBOARD_MATRIX=y
-CONFIG_LCD_CLASS_DEVICE=y
-CONFIG_LCD_ILI8960=y
-CONFIG_LOGO=y
-CONFIG_MFD_CORE=y
-CONFIG_MFD_JZ4740_ADC=y
-CONFIG_SPI=y
-CONFIG_SPI_BITBANG=y
-CONFIG_SPI_GPIO=y
-CONFIG_SPI_MASTER=y
+++ /dev/null
-CONFIG_BACKLIGHT_LCD_SUPPORT=y
-CONFIG_FB_JZ4740=y
-# CONFIG_FB_TMIO is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_INPUT_PWM_BEEPER=y
-CONFIG_JZ4740_QI_LB60=y
-CONFIG_KEYBOARD_GPIO=y
-CONFIG_KEYBOARD_MATRIX=y
-CONFIG_LCD_CLASS_DEVICE=y
-CONFIG_LCD_ILI8960=y
-CONFIG_LOGO=y
-CONFIG_MFD_CORE=y
-CONFIG_MFD_JZ4740_ADC=y
-CONFIG_SPI=y
-CONFIG_SPI_BITBANG=y
-CONFIG_SPI_GPIO=y
-CONFIG_SPI_MASTER=y
--- /dev/null
+CONFIG_DEVMEM=y
+CONFIG_FB_JZ4740=y
+# CONFIG_FB_TMIO is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_INPUT_PWM_BEEPER=y
+CONFIG_JZ4740_QI_LB60=y
+CONFIG_KEYBOARD_GPIO=y
+CONFIG_KEYBOARD_MATRIX=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+# CONFIG_LOGO_OPENWRT_CLUT224 is not set
+CONFIG_LOGO_NANONOTE_CLUT224=y
+CONFIG_SPI=y
+CONFIG_SPI_BITBANG=y
+CONFIG_SPI_GPIO=y
+CONFIG_SPI_MASTER=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_TIMER=y
+CONFIG_SND_PCM=y
+CONFIG_SND_HWDEP=y
+CONFIG_SND_SEQUENCER=y
+CONFIG_SND_SEQ_DUMMY=y
+CONFIG_SND_MIXER_OSS=y
+CONFIG_SND_PCM_OSS=y
+# CONFIG_SND_RAWMIDI_SEQ is not set
+CONFIG_SND_SOC=y
+CONFIG_SND_JZ4740_SOC=y
+CONFIG_SND_JZ4740_SOC_QI_LB60=y
+CONFIG_SND_JZ4740_SOC_I2S=y
+CONFIG_SND_SOC_I2C_AND_SPI=y
+CONFIG_SND_SOC_JZCODEC=y
+CONFIG_REGMAP=y
+CONFIG_REGMAP_I2C=y
+CONFIG_REGMAP_SPI=y
+# CONFIG_SND_VIRMIDI is not set
+CONFIG_SOUND_OSS_CORE_PRECLAIM=y
+# CONFIG_SND_SEQUENCER_OSS is not set
+
+# CONFIG_IEEE802154 is not set
+# CONFIG_IEEE802154_6LOWPAN is not set
+# CONFIG_MAC802154 is not set
+# CONFIG_MAC802154_DEBUG is not set
+# CONFIG_IEEE802154_DRIVER_DEBUG is not set
+# CONFIG_IEEE802154_DRIVER is not set
+# CONFIG_IEEE802154_SERIAL is not set
+# CONFIG_SPI_ATUSB is not set
+# CONFIG_SPI_ATBEN is not set
+# CONFIG_IEEE802154_AT86RF230 is not set
+# CONFIG_IEEE802154_FAKEHARD is not set
+# CONFIG_IEEE802154_FAKELB is not set
+# CONFIG_IEEE802154_CC2420 is not set
+# CONFIG_IEEE802154_ADF7242 is not set
+
+# CONFIG_SENSORS_JZ4740 is not set
+
+CONFIG_LCD_CLASS_DEVICE=y
+# CONFIG_LCD_L4F00242T03 is not set
+# CONFIG_LCD_LMS283GF05 is not set
+# CONFIG_LCD_LTV350QV is not set
+CONFIG_LCD_ILI8960=y
+
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
+# CONFIG_BACKLIGHT_GENERIC is not set
+# CONFIG_BACKLIGHT_PWM is not set
+# CONFIG_BACKLIGHT_ADP8860 is not set
+# CONFIG_BACKLIGHT_ADP8870 is not set
+
+# CONFIG_LCD_TDO24M is not set
+# CONFIG_LCD_VGG2432A4 is not set
+# CONFIG_LCD_PLATFORM is not set
+
+# CONFIG_USB_RENESAS_USBHS is not set
+
+CONFIG_USB_GADGET=y
+# CONFIG_USB_GADGET_DEBUG is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+# CONFIG_USB_GADGET_DEBUG_FS is not set
+CONFIG_USB_GADGET_VBUS_DRAW=2
+CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS=2
+# CONFIG_USB_FUSB300 is not set
+CONFIG_USB_JZ4740=y
+# CONFIG_USB_R8A66597 is not set
+# CONFIG_USB_M66592 is not set
+# CONFIG_USB_NET2272 is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+# CONFIG_USB_ZERO is not set
+# CONFIG_USB_AUDIO is not set
+CONFIG_USB_ETH=y
+# CONFIG_USB_ETH_EEM is not set
+# CONFIG_USB_ETH_RNDIS is not set
BOARDNAME:=QI Ben Nanonote (qi_lb60)
-DEFAULT_PACKAGES += \
- kmod-sound-core \
- kmod-sound-soc-core \
- kmod-sound-soc-jz4740 \
- kmod-sound-soc-jz4740-codec \
- kmod-sound-soc-qilb60 \
-
projects / openwrt.git / commitdiff