target/linux/brcm63xx/patches-3.1/007-usb-ohci-support.patch

   1 The bcm63xx SOC has an integrated OHCI controller, this patch adds
   2 platform device registration and change board code to register ohci
   3 device when necessary.
   4
   5 Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
   6 ---
   7  arch/mips/bcm63xx/Kconfig                          |    6 ++
   8  arch/mips/bcm63xx/Makefile                         |    3 +-
   9  arch/mips/bcm63xx/boards/board_bcm963xx.c          |    4 ++
  10  arch/mips/bcm63xx/dev-usb-ohci.c                   |   49 ++++++++++++++++++++
  11  .../asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h        |    6 ++
  12  5 files changed, 67 insertions(+), 1 deletions(-)
  13  create mode 100644 arch/mips/bcm63xx/dev-usb-ohci.c
  14  create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
  15
  16 --- a/arch/mips/bcm63xx/Kconfig
  17 +++ b/arch/mips/bcm63xx/Kconfig
  18 @@ -16,10 +16,16 @@ config BCM63XX_CPU_6345
  19  config BCM63XX_CPU_6348
  20         bool "support 6348 CPU"
  21         select HW_HAS_PCI
  22 +       select USB_ARCH_HAS_OHCI
  23 +       select USB_OHCI_BIG_ENDIAN_DESC
  24 +       select USB_OHCI_BIG_ENDIAN_MMIO
  25
  26  config BCM63XX_CPU_6358
  27         bool "support 6358 CPU"
  28         select HW_HAS_PCI
  29 +       select USB_ARCH_HAS_OHCI
  30 +       select USB_OHCI_BIG_ENDIAN_DESC
  31 +       select USB_OHCI_BIG_ENDIAN_MMIO
  32  endmenu
  33
  34  source "arch/mips/bcm63xx/boards/Kconfig"
  35 --- a/arch/mips/bcm63xx/Makefile
  36 +++ b/arch/mips/bcm63xx/Makefile
  37 @@ -1,5 +1,6 @@
  38  obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
  39 -                  dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o
  40 +                  dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
  41 +                  dev-usb-ohci.o
  42  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
  43
  44  obj-y          += boards/
  45 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
  46 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
  47 @@ -25,6 +25,7 @@
  48  #include <bcm63xx_dev_enet.h>
  49  #include <bcm63xx_dev_dsp.h>
  50  #include <bcm63xx_dev_pcmcia.h>
  51 +#include <bcm63xx_dev_usb_ohci.h>
  52  #include <board_bcm963xx.h>
  53
  54  #define PFX    "board_bcm963xx: "
  55 @@ -883,6 +884,9 @@ int __init board_register_devices(void)
  56             !board_get_mac_address(board.enet1.mac_addr))
  57                 bcm63xx_enet_register(1, &board.enet1);
  58
  59 +       if (board.has_ohci0)
  60 +               bcm63xx_ohci_register();
  61 +
  62         if (board.has_dsp)
  63                 bcm63xx_dsp_register(&board.dsp);
  64
  65 --- /dev/null
  66 +++ b/arch/mips/bcm63xx/dev-usb-ohci.c
  67 @@ -0,0 +1,49 @@
  68 +/*
  69 + * This file is subject to the terms and conditions of the GNU General Public
  70 + * License.  See the file "COPYING" in the main directory of this archive
  71 + * for more details.
  72 + *
  73 + * Copyright (C) 2010 Maxime Bizon <mbizon@freebox.fr>
  74 + */
  75 +
  76 +#include <linux/init.h>
  77 +#include <linux/kernel.h>
  78 +#include <linux/platform_device.h>
  79 +#include <bcm63xx_cpu.h>
  80 +#include <bcm63xx_dev_usb_ohci.h>
  81 +
  82 +static struct resource ohci_resources[] = {
  83 +       {
  84 +               /* start & end filled at runtime */
  85 +               .flags          = IORESOURCE_MEM,
  86 +       },
  87 +       {
  88 +               /* start filled at runtime */
  89 +               .flags          = IORESOURCE_IRQ,
  90 +       },
  91 +};
  92 +
  93 +static u64 ohci_dmamask = ~(u32)0;
  94 +
  95 +static struct platform_device bcm63xx_ohci_device = {
  96 +       .name           = "bcm63xx_ohci",
  97 +       .id             = 0,
  98 +       .num_resources  = ARRAY_SIZE(ohci_resources),
  99 +       .resource       = ohci_resources,
 100 +       .dev            = {
 101 +               .dma_mask               = &ohci_dmamask,
 102 +               .coherent_dma_mask      = 0xffffffff,
 103 +       },
 104 +};
 105 +
 106 +int __init bcm63xx_ohci_register(void)
 107 +{
 108 +       if (!BCMCPU_IS_6348() && !BCMCPU_IS_6358())
 109 +               return 0;
 110 +
 111 +       ohci_resources[0].start = bcm63xx_regset_address(RSET_OHCI0);
 112 +       ohci_resources[0].end = ohci_resources[0].start;
 113 +       ohci_resources[0].end += RSET_OHCI_SIZE - 1;
 114 +       ohci_resources[1].start = bcm63xx_get_irq_number(IRQ_OHCI0);
 115 +       return platform_device_register(&bcm63xx_ohci_device);
 116 +}
 117 --- /dev/null
 118 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ohci.h
 119 @@ -0,0 +1,6 @@
 120 +#ifndef BCM63XX_DEV_USB_OHCI_H_
 121 +#define BCM63XX_DEV_USB_OHCI_H_
 122 +
 123 +int bcm63xx_ohci_register(void);
 124 +
 125 +#endif /* BCM63XX_DEV_USB_OHCI_H_ */