target/linux/brcm63xx/patches-2.6.37/008-usb-ehci-support.patch

   1 The bcm63xx SOC has an integrated EHCI controller, this patch adds
   2 platform device registration and change board code to register
   3 EHCI device when necessary.
   4
   5 Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
   6 ---
   7  arch/mips/bcm63xx/Kconfig                          |    2 +
   8  arch/mips/bcm63xx/Makefile                         |    2 +-
   9  arch/mips/bcm63xx/boards/board_bcm963xx.c          |    4 ++
  10  arch/mips/bcm63xx/dev-usb-ehci.c                   |   49 ++++++++++++++++++++
  11  .../asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h        |    6 ++
  12  5 files changed, 62 insertions(+), 1 deletions(-)
  13  create mode 100644 arch/mips/bcm63xx/dev-usb-ehci.c
  14  create mode 100644 arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
  15
  16 --- a/arch/mips/bcm63xx/Kconfig
  17 +++ b/arch/mips/bcm63xx/Kconfig
  18 @@ -26,6 +26,8 @@ config BCM63XX_CPU_6358
  19         select USB_ARCH_HAS_OHCI
  20         select USB_OHCI_BIG_ENDIAN_DESC
  21         select USB_OHCI_BIG_ENDIAN_MMIO
  22 +       select USB_ARCH_HAS_EHCI
  23 +       select USB_EHCI_BIG_ENDIAN_MMIO
  24  endmenu
  25
  26  source "arch/mips/bcm63xx/boards/Kconfig"
  27 --- a/arch/mips/bcm63xx/Makefile
  28 +++ b/arch/mips/bcm63xx/Makefile
  29 @@ -1,6 +1,6 @@
  30  obj-y          += clk.o cpu.o cs.o gpio.o irq.o prom.o setup.o timer.o \
  31                    dev-dsp.o dev-enet.o dev-pcmcia.o dev-uart.o dev-wdt.o \
  32 -                  dev-usb-ohci.o
  33 +                  dev-usb-ohci.o dev-usb-ehci.o
  34  obj-$(CONFIG_EARLY_PRINTK)     += early_printk.o
  35
  36  obj-y          += boards/
  37 --- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
  38 +++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
  39 @@ -26,6 +26,7 @@
  40  #include <bcm63xx_dev_dsp.h>
  41  #include <bcm63xx_dev_pcmcia.h>
  42  #include <bcm63xx_dev_usb_ohci.h>
  43 +#include <bcm63xx_dev_usb_ehci.h>
  44  #include <board_bcm963xx.h>
  45
  46  #define PFX    "board_bcm963xx: "
  47 @@ -878,6 +879,9 @@ int __init board_register_devices(void)
  48             !board_get_mac_address(board.enet1.mac_addr))
  49                 bcm63xx_enet_register(1, &board.enet1);
  50
  51 +       if (board.has_ehci0)
  52 +               bcm63xx_ehci_register();
  53 +
  54         if (board.has_ohci0)
  55                 bcm63xx_ohci_register();
  56
  57 --- /dev/null
  58 +++ b/arch/mips/bcm63xx/dev-usb-ehci.c
  59 @@ -0,0 +1,49 @@
  60 +/*
  61 + * This file is subject to the terms and conditions of the GNU General Public
  62 + * License.  See the file "COPYING" in the main directory of this archive
  63 + * for more details.
  64 + *
  65 + * Copyright (C) 2010 Maxime Bizon <mbizon@freebox.fr>
  66 + */
  67 +
  68 +#include <linux/init.h>
  69 +#include <linux/kernel.h>
  70 +#include <linux/platform_device.h>
  71 +#include <bcm63xx_cpu.h>
  72 +#include <bcm63xx_dev_usb_ehci.h>
  73 +
  74 +static struct resource ehci_resources[] = {
  75 +       {
  76 +               /* start & end filled at runtime */
  77 +               .flags          = IORESOURCE_MEM,
  78 +       },
  79 +       {
  80 +               /* start filled at runtime */
  81 +               .flags          = IORESOURCE_IRQ,
  82 +       },
  83 +};
  84 +
  85 +static u64 ehci_dmamask = ~(u32)0;
  86 +
  87 +static struct platform_device bcm63xx_ehci_device = {
  88 +       .name           = "bcm63xx_ehci",
  89 +       .id             = 0,
  90 +       .num_resources  = ARRAY_SIZE(ehci_resources),
  91 +       .resource       = ehci_resources,
  92 +       .dev            = {
  93 +               .dma_mask               = &ehci_dmamask,
  94 +               .coherent_dma_mask      = 0xffffffff,
  95 +       },
  96 +};
  97 +
  98 +int __init bcm63xx_ehci_register(void)
  99 +{
 100 +       if (!BCMCPU_IS_6358())
 101 +               return 0;
 102 +
 103 +       ehci_resources[0].start = bcm63xx_regset_address(RSET_EHCI0);
 104 +       ehci_resources[0].end = ehci_resources[0].start;
 105 +       ehci_resources[0].end += RSET_EHCI_SIZE - 1;
 106 +       ehci_resources[1].start = bcm63xx_get_irq_number(IRQ_EHCI0);
 107 +       return platform_device_register(&bcm63xx_ehci_device);
 108 +}
 109 --- /dev/null
 110 +++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_usb_ehci.h
 111 @@ -0,0 +1,6 @@
 112 +#ifndef BCM63XX_DEV_USB_EHCI_H_
 113 +#define BCM63XX_DEV_USB_EHCI_H_
 114 +
 115 +int bcm63xx_ehci_register(void);
 116 +
 117 +#endif /* BCM63XX_DEV_USB_EHCI_H_ */