X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/6936562161eb76de44dc0a8dc1017fcad3db49ba..33334db9dc0d1a10132ddd4d7fcafe375f428328:/target/linux/generic/patches-2.6.39/025-bcma_backport.patch

diff --git a/target/linux/generic/patches-2.6.39/025-bcma_backport.patch b/target/linux/generic/patches-2.6.39/025-bcma_backport.patch
index 07b278e8c..b36bb5f8e 100644
--- a/target/linux/generic/patches-2.6.39/025-bcma_backport.patch
+++ b/target/linux/generic/patches-2.6.39/025-bcma_backport.patch
@@ -71,7 +71,7 @@
  obj-$(CONFIG_STAGING)		+= staging/
 --- /dev/null
 +++ b/drivers/bcma/Kconfig
-@@ -0,0 +1,38 @@
+@@ -0,0 +1,44 @@
 +config BCMA_POSSIBLE
 +	bool
 +	depends on HAS_IOMEM && HAS_DMA
@@ -101,6 +101,12 @@
 +	bool "Support for BCMA on PCI-host bus"
 +	depends on BCMA_HOST_PCI_POSSIBLE
 +
++config BCMA_DRIVER_PCI_HOSTMODE
++	bool "Driver for PCI core working in hostmode"
++	depends on BCMA && MIPS
++	help
++	  PCI core hostmode operation (external PCI bus).
++
 +config BCMA_DEBUG
 +	bool "BCMA debugging"
 +	depends on BCMA
@@ -112,10 +118,11 @@
 +endmenu
 --- /dev/null
 +++ b/drivers/bcma/Makefile
-@@ -0,0 +1,7 @@
+@@ -0,0 +1,8 @@
 +bcma-y					+= main.o scan.o core.o sprom.o
 +bcma-y					+= driver_chipcommon.o driver_chipcommon_pmu.o
 +bcma-y					+= driver_pci.o
++bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE)	+= driver_pci_host.o
 +bcma-$(CONFIG_BCMA_HOST_PCI)		+= host_pci.o
 +obj-$(CONFIG_BCMA)			+= bcma.o
 +
@@ -150,7 +157,7 @@
 +- Create kernel Documentation (use info from README)
 --- /dev/null
 +++ b/drivers/bcma/bcma_private.h
-@@ -0,0 +1,31 @@
+@@ -0,0 +1,35 @@
 +#ifndef LINUX_BCMA_PRIVATE_H_
 +#define LINUX_BCMA_PRIVATE_H_
 +
@@ -181,10 +188,14 @@
 +extern void __exit bcma_host_pci_exit(void);
 +#endif /* CONFIG_BCMA_HOST_PCI */
 +
++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
++void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc);
++#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
++
 +#endif
 --- /dev/null
 +++ b/drivers/bcma/core.c
-@@ -0,0 +1,52 @@
+@@ -0,0 +1,124 @@
 +/*
 + * Broadcom specific AMBA
 + * Core ops
@@ -237,9 +248,81 @@
 +	return 0;
 +}
 +EXPORT_SYMBOL_GPL(bcma_core_enable);
++
++void bcma_core_set_clockmode(struct bcma_device *core,
++			     enum bcma_clkmode clkmode)
++{
++	u16 i;
++
++	WARN_ON(core->id.id != BCMA_CORE_CHIPCOMMON &&
++		core->id.id != BCMA_CORE_PCIE &&
++		core->id.id != BCMA_CORE_80211);
++
++	switch (clkmode) {
++	case BCMA_CLKMODE_FAST:
++		bcma_set32(core, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
++		udelay(64);
++		for (i = 0; i < 1500; i++) {
++			if (bcma_read32(core, BCMA_CLKCTLST) &
++			    BCMA_CLKCTLST_HAVEHT) {
++				i = 0;
++				break;
++			}
++			udelay(10);
++		}
++		if (i)
++			pr_err("HT force timeout\n");
++		break;
++	case BCMA_CLKMODE_DYNAMIC:
++		pr_warn("Dynamic clockmode not supported yet!\n");
++		break;
++	}
++}
++EXPORT_SYMBOL_GPL(bcma_core_set_clockmode);
++
++void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status, bool on)
++{
++	u16 i;
++
++	WARN_ON(req & ~BCMA_CLKCTLST_EXTRESREQ);
++	WARN_ON(status & ~BCMA_CLKCTLST_EXTRESST);
++
++	if (on) {
++		bcma_set32(core, BCMA_CLKCTLST, req);
++		for (i = 0; i < 10000; i++) {
++			if ((bcma_read32(core, BCMA_CLKCTLST) & status) ==
++			    status) {
++				i = 0;
++				break;
++			}
++			udelay(10);
++		}
++		if (i)
++			pr_err("PLL enable timeout\n");
++	} else {
++		pr_warn("Disabling PLL not supported yet!\n");
++	}
++}
++EXPORT_SYMBOL_GPL(bcma_core_pll_ctl);
++
++u32 bcma_core_dma_translation(struct bcma_device *core)
++{
++	switch (core->bus->hosttype) {
++	case BCMA_HOSTTYPE_PCI:
++		if (bcma_aread32(core, BCMA_IOST) & BCMA_IOST_DMA64)
++			return BCMA_DMA_TRANSLATION_DMA64_CMT;
++		else
++			return BCMA_DMA_TRANSLATION_DMA32_CMT;
++	default:
++		pr_err("DMA translation unknown for host %d\n",
++		       core->bus->hosttype);
++	}
++	return BCMA_DMA_TRANSLATION_NONE;
++}
++EXPORT_SYMBOL(bcma_core_dma_translation);
 --- /dev/null
 +++ b/drivers/bcma/driver_chipcommon.c
-@@ -0,0 +1,89 @@
+@@ -0,0 +1,103 @@
 +/*
 + * Broadcom specific AMBA
 + * ChipCommon core driver
@@ -265,6 +348,9 @@
 +
 +void bcma_core_chipcommon_init(struct bcma_drv_cc *cc)
 +{
++	u32 leddc_on = 10;
++	u32 leddc_off = 90;
++
 +	if (cc->core->id.rev >= 11)
 +		cc->status = bcma_cc_read32(cc, BCMA_CC_CHIPSTAT);
 +	cc->capabilities = bcma_cc_read32(cc, BCMA_CC_CAP);
@@ -280,6 +366,17 @@
 +		bcma_pmu_init(cc);
 +	if (cc->capabilities & BCMA_CC_CAP_PCTL)
 +		pr_err("Power control not implemented!\n");
++
++	if (cc->core->id.rev >= 16) {
++		if (cc->core->bus->sprom.leddc_on_time &&
++		    cc->core->bus->sprom.leddc_off_time) {
++			leddc_on = cc->core->bus->sprom.leddc_on_time;
++			leddc_off = cc->core->bus->sprom.leddc_off_time;
++		}
++		bcma_cc_write32(cc, BCMA_CC_GPIOTIMER,
++			((leddc_on << BCMA_CC_GPIOTIMER_ONTIME_SHIFT) |
++			 (leddc_off << BCMA_CC_GPIOTIMER_OFFTIME_SHIFT)));
++	}
 +}
 +
 +/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
@@ -472,7 +569,7 @@
 +}
 --- /dev/null
 +++ b/drivers/bcma/driver_pci.c
-@@ -0,0 +1,187 @@
+@@ -0,0 +1,223 @@
 +/*
 + * Broadcom specific AMBA
 + * PCI Core
@@ -632,11 +729,47 @@
 + * Init.
 + **************************************************/
 +
-+void bcma_core_pci_init(struct bcma_drv_pci *pc)
++static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
 +{
 +	bcma_pcicore_serdes_workaround(pc);
 +}
 +
++static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
++{
++	struct bcma_bus *bus = pc->core->bus;
++	u16 chipid_top;
++
++	chipid_top = (bus->chipinfo.id & 0xFF00);
++	if (chipid_top != 0x4700 &&
++	    chipid_top != 0x5300)
++		return false;
++
++	if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
++		return false;
++
++#if 0
++	/* TODO: on BCMA we use address from EROM instead of magic formula */
++	u32 tmp;
++	return !mips_busprobe32(tmp, (bus->mmio +
++		(pc->core->core_index * BCMA_CORE_SIZE)));
++#endif
++
++	return true;
++}
++
++void bcma_core_pci_init(struct bcma_drv_pci *pc)
++{
++	if (bcma_core_pci_is_in_hostmode(pc)) {
++#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
++		bcma_core_pci_hostmode_init(pc);
++#else
++		pr_err("Driver compiled without support for hostmode PCI\n");
++#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
++	} else {
++		bcma_core_pci_clientmode_init(pc);
++	}
++}
++
 +int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
 +			  bool enable)
 +{
@@ -916,7 +1049,7 @@
 +}
 --- /dev/null
 +++ b/drivers/bcma/main.c
-@@ -0,0 +1,255 @@
+@@ -0,0 +1,257 @@
 +/*
 + * Broadcom specific AMBA
 + * Bus subsystem
@@ -1068,7 +1201,9 @@
 +
 +	/* Try to get SPROM */
 +	err = bcma_sprom_get(bus);
-+	if (err) {
++	if (err == -ENOENT) {
++		pr_err("No SPROM available\n");
++	} else if (err) {
 +		pr_err("Failed to get SPROM: %d\n", err);
 +		return -ENOENT;
 +	}
@@ -1596,7 +1731,7 @@
 +#endif /* BCMA_SCAN_H_ */
 --- /dev/null
 +++ b/include/linux/bcma/bcma.h
-@@ -0,0 +1,250 @@
+@@ -0,0 +1,271 @@
 +#ifndef LINUX_BCMA_H_
 +#define LINUX_BCMA_H_
 +
@@ -1624,6 +1759,11 @@
 +	u8 pkg;
 +};
 +
++enum bcma_clkmode {
++	BCMA_CLKMODE_FAST,
++	BCMA_CLKMODE_DYNAMIC,
++};
++
 +struct bcma_host_ops {
 +	u8 (*read8)(struct bcma_device *core, u16 offset);
 +	u16 (*read16)(struct bcma_device *core, u16 offset);
@@ -1842,14 +1982,30 @@
 +	core->bus->ops->awrite32(core, offset, value);
 +}
 +
++#define bcma_mask32(cc, offset, mask) \
++	bcma_write32(cc, offset, bcma_read32(cc, offset) & (mask))
++#define bcma_set32(cc, offset, set) \
++	bcma_write32(cc, offset, bcma_read32(cc, offset) | (set))
++#define bcma_maskset32(cc, offset, mask, set) \
++	bcma_write32(cc, offset, (bcma_read32(cc, offset) & (mask)) | (set))
++
 +extern bool bcma_core_is_enabled(struct bcma_device *core);
 +extern void bcma_core_disable(struct bcma_device *core, u32 flags);
 +extern int bcma_core_enable(struct bcma_device *core, u32 flags);
++extern void bcma_core_set_clockmode(struct bcma_device *core,
++				    enum bcma_clkmode clkmode);
++extern void bcma_core_pll_ctl(struct bcma_device *core, u32 req, u32 status,
++			      bool on);
++#define BCMA_DMA_TRANSLATION_MASK	0xC0000000
++#define  BCMA_DMA_TRANSLATION_NONE	0x00000000
++#define  BCMA_DMA_TRANSLATION_DMA32_CMT	0x40000000 /* Client Mode Translation for 32-bit DMA */
++#define  BCMA_DMA_TRANSLATION_DMA64_CMT	0x80000000 /* Client Mode Translation for 64-bit DMA */
++extern u32 bcma_core_dma_translation(struct bcma_device *core);
 +
 +#endif /* LINUX_BCMA_H_ */
 --- /dev/null
 +++ b/include/linux/bcma/bcma_driver_chipcommon.h
-@@ -0,0 +1,303 @@
+@@ -0,0 +1,296 @@
 +#ifndef LINUX_BCMA_DRIVER_CC_H_
 +#define LINUX_BCMA_DRIVER_CC_H_
 +
@@ -2031,15 +2187,7 @@
 +#define BCMA_CC_PROG_WAITCNT		0x0124
 +#define BCMA_CC_FLASH_CFG		0x0128
 +#define BCMA_CC_FLASH_WAITCNT		0x012C
-+#define BCMA_CC_CLKCTLST		0x01E0 /* Clock control and status (rev >= 20) */
-+#define  BCMA_CC_CLKCTLST_FORCEALP	0x00000001 /* Force ALP request */
-+#define  BCMA_CC_CLKCTLST_FORCEHT	0x00000002 /* Force HT request */
-+#define  BCMA_CC_CLKCTLST_FORCEILP	0x00000004 /* Force ILP request */
-+#define  BCMA_CC_CLKCTLST_HAVEALPREQ	0x00000008 /* ALP available request */
-+#define  BCMA_CC_CLKCTLST_HAVEHTREQ	0x00000010 /* HT available request */
-+#define  BCMA_CC_CLKCTLST_HWCROFF	0x00000020 /* Force HW clock request off */
-+#define  BCMA_CC_CLKCTLST_HAVEHT	0x00010000 /* HT available */
-+#define  BCMA_CC_CLKCTLST_HAVEALP	0x00020000 /* APL available */
++/* 0x1E0 is defined as shared BCMA_CLKCTLST */
 +#define BCMA_CC_HW_WORKAROUND		0x01E4 /* Hardware workaround (rev >= 20) */
 +#define BCMA_CC_UART0_DATA		0x0300
 +#define BCMA_CC_UART0_IMR		0x0304
@@ -2096,7 +2244,8 @@
 +#define BCMA_CC_REGCTL_DATA		0x065C
 +#define BCMA_CC_PLLCTL_ADDR		0x0660
 +#define BCMA_CC_PLLCTL_DATA		0x0664
-+#define BCMA_CC_SPROM			0x0830 /* SPROM beginning */
++#define BCMA_CC_SPROM			0x0800 /* SPROM beginning */
++#define BCMA_CC_SPROM_PCIE6		0x0830 /* SPROM beginning on PCIe rev >= 6 */
 +
 +/* Data for the PMU, if available.
 + * Check availability with ((struct bcma_chipcommon)->capabilities & BCMA_CC_CAP_PMU)
@@ -2249,17 +2398,42 @@
 +#endif /* LINUX_BCMA_DRIVER_PCI_H_ */
 --- /dev/null
 +++ b/include/linux/bcma/bcma_regs.h
-@@ -0,0 +1,34 @@
+@@ -0,0 +1,59 @@
 +#ifndef LINUX_BCMA_REGS_H_
 +#define LINUX_BCMA_REGS_H_
 +
++/* Some single registers are shared between many cores */
++/* BCMA_CLKCTLST: ChipCommon (rev >= 20), PCIe, 80211 */
++#define BCMA_CLKCTLST			0x01E0 /* Clock control and status */
++#define  BCMA_CLKCTLST_FORCEALP		0x00000001 /* Force ALP request */
++#define  BCMA_CLKCTLST_FORCEHT		0x00000002 /* Force HT request */
++#define  BCMA_CLKCTLST_FORCEILP		0x00000004 /* Force ILP request */
++#define  BCMA_CLKCTLST_HAVEALPREQ	0x00000008 /* ALP available request */
++#define  BCMA_CLKCTLST_HAVEHTREQ	0x00000010 /* HT available request */
++#define  BCMA_CLKCTLST_HWCROFF		0x00000020 /* Force HW clock request off */
++#define  BCMA_CLKCTLST_EXTRESREQ	0x00000700 /* Mask of external resource requests */
++#define  BCMA_CLKCTLST_HAVEALP		0x00010000 /* ALP available */
++#define  BCMA_CLKCTLST_HAVEHT		0x00020000 /* HT available */
++#define  BCMA_CLKCTLST_BP_ON_ALP	0x00040000 /* RO: running on ALP clock */
++#define  BCMA_CLKCTLST_BP_ON_HT		0x00080000 /* RO: running on HT clock */
++#define  BCMA_CLKCTLST_EXTRESST		0x07000000 /* Mask of external resource status */
++/* Is there any BCM4328 on BCMA bus? */
++#define  BCMA_CLKCTLST_4328A0_HAVEHT	0x00010000 /* 4328a0 has reversed bits */
++#define  BCMA_CLKCTLST_4328A0_HAVEALP	0x00020000 /* 4328a0 has reversed bits */
++
 +/* Agent registers (common for every core) */
-+#define BCMA_IOCTL			0x0408
++#define BCMA_IOCTL			0x0408 /* IO control */
 +#define  BCMA_IOCTL_CLK			0x0001
 +#define  BCMA_IOCTL_FGC			0x0002
 +#define  BCMA_IOCTL_CORE_BITS		0x3FFC
 +#define  BCMA_IOCTL_PME_EN		0x4000
 +#define  BCMA_IOCTL_BIST_EN		0x8000
++#define BCMA_IOST			0x0500 /* IO status */
++#define  BCMA_IOST_CORE_BITS		0x0FFF
++#define  BCMA_IOST_DMA64		0x1000
++#define  BCMA_IOST_GATED_CLK		0x2000
++#define  BCMA_IOST_BIST_ERROR		0x4000
++#define  BCMA_IOST_BIST_DONE		0x8000
 +#define BCMA_RESET_CTL			0x0800
 +#define  BCMA_RESET_CTL_RESET		0x0001
 +
@@ -2350,7 +2524,7 @@
  			 sizeof(struct virtio_device_id), "virtio",
 --- /dev/null
 +++ b/drivers/bcma/sprom.c
-@@ -0,0 +1,162 @@
+@@ -0,0 +1,171 @@
 +/*
 + * Broadcom specific AMBA
 + * SPROM reading
@@ -2373,12 +2547,12 @@
 + * R/W ops.
 + **************************************************/
 +
-+static void bcma_sprom_read(struct bcma_bus *bus, u16 *sprom)
++static void bcma_sprom_read(struct bcma_bus *bus, u16 offset, u16 *sprom)
 +{
 +	int i;
 +	for (i = 0; i < SSB_SPROMSIZE_WORDS_R4; i++)
 +		sprom[i] = bcma_read16(bus->drv_cc.core,
-+				       BCMA_CC_SPROM + (i * 2));
++				       offset + (i * 2));
 +}
 +
 +/**************************************************
@@ -2465,7 +2639,7 @@
 +		return err;
 +
 +	revision = sprom[SSB_SPROMSIZE_WORDS_R4 - 1] & SSB_SPROM_REVISION_REV;
-+	if (revision != 8) {
++	if (revision != 8 && revision != 9) {
 +		pr_err("Unsupported SPROM revision: %d\n", revision);
 +		return -ENOENT;
 +	}
@@ -2490,18 +2664,27 @@
 +
 +int bcma_sprom_get(struct bcma_bus *bus)
 +{
++	u16 offset;
 +	u16 *sprom;
 +	int err = 0;
 +
 +	if (!bus->drv_cc.core)
 +		return -EOPNOTSUPP;
 +
++	if (!(bus->drv_cc.capabilities & BCMA_CC_CAP_SPROM))
++		return -ENOENT;
++
 +	sprom = kcalloc(SSB_SPROMSIZE_WORDS_R4, sizeof(u16),
 +			GFP_KERNEL);
 +	if (!sprom)
 +		return -ENOMEM;
 +
-+	bcma_sprom_read(bus, sprom);
++	/* Most cards have SPROM moved by additional offset 0x30 (48 dwords).
++	 * According to brcm80211 this applies to cards with PCIe rev >= 6
++	 * TODO: understand this condition and use it */
++	offset = (bus->chipinfo.id == 0x4331) ? BCMA_CC_SPROM :
++		BCMA_CC_SPROM_PCIE6;
++	bcma_sprom_read(bus, offset, sprom);
 +
 +	err = bcma_sprom_valid(sprom);
 +	if (err)
@@ -2513,3 +2696,20 @@
 +	kfree(sprom);
 +	return err;
 +}
+--- /dev/null
++++ b/drivers/bcma/driver_pci_host.c
+@@ -0,0 +1,14 @@
++/*
++ * Broadcom specific AMBA
++ * PCI Core in hostmode
++ *
++ * Licensed under the GNU/GPL. See COPYING for details.
++ */
++
++#include "bcma_private.h"
++#include <linux/bcma/bcma.h>
++
++void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
++{
++	pr_err("No support for PCI core in hostmode yet\n");
++}