target/linux/ar71xx/patches-3.3/134-MIPS-ath79-add-USB-platform-setup-code-for-AR934X.patch

   1 From 635d5a2ac8aa483c3a0635c60bff8ea8978ff6a7 Mon Sep 17 00:00:00 2001
   2 From: Gabor Juhos <juhosg@openwrt.org>
   3 Date: Sun, 11 Dec 2011 18:34:13 +0100
   4 Subject: [PATCH 39/47] MIPS: ath79: add USB platform setup code for AR934X
   5
   6 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
   7 ---
   8  arch/mips/ath79/dev-usb.c                      |   28 ++++++++++++++++++++++++
   9  arch/mips/include/asm/mach-ath79/ar71xx_regs.h |    7 ++++++
  10  2 files changed, 35 insertions(+), 0 deletions(-)
  11
  12 --- a/arch/mips/ath79/dev-usb.c
  13 +++ b/arch/mips/ath79/dev-usb.c
  14 @@ -193,6 +193,32 @@ static void __init ar933x_usb_setup(void
  15         platform_device_register(&ath79_ehci_device);
  16  }
  17
  18 +static void __init ar934x_usb_setup(void)
  19 +{
  20 +       u32 bootstrap;
  21 +
  22 +       bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
  23 +       if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
  24 +               return;
  25 +
  26 +       ath79_device_reset_set(AR934X_RESET_USBSUS_OVERRIDE);
  27 +       udelay(1000);
  28 +
  29 +       ath79_device_reset_clear(AR934X_RESET_USB_PHY);
  30 +       udelay(1000);
  31 +
  32 +       ath79_device_reset_clear(AR934X_RESET_USB_PHY_ANALOG);
  33 +       udelay(1000);
  34 +
  35 +       ath79_device_reset_clear(AR934X_RESET_USB_HOST);
  36 +       udelay(1000);
  37 +
  38 +       ath79_usb_init_resource(ath79_ehci_resources, AR934X_EHCI_BASE,
  39 +                               AR934X_EHCI_SIZE, ATH79_CPU_IRQ_USB);
  40 +       ath79_ehci_device.dev.platform_data = &ath79_ehci_pdata_v2;
  41 +       platform_device_register(&ath79_ehci_device);
  42 +}
  43 +
  44  void __init ath79_register_usb(void)
  45  {
  46         if (soc_is_ar71xx())
  47 @@ -205,6 +231,8 @@ void __init ath79_register_usb(void)
  48                 ar913x_usb_setup();
  49         else if (soc_is_ar933x())
  50                 ar933x_usb_setup();
  51 +       else if (soc_is_ar934x())
  52 +               ar934x_usb_setup();
  53         else
  54                 BUG();
  55  }
  56 --- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
  57 +++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
  58 @@ -63,6 +63,8 @@
  59
  60  #define AR934X_WMAC_BASE       (AR71XX_APB_BASE + 0x00100000)
  61  #define AR934X_WMAC_SIZE       0x20000
  62 +#define AR934X_EHCI_BASE       0x1b000000
  63 +#define AR934X_EHCI_SIZE       0x1000
  64
  65  /*
  66   * DDR_CTRL block
  67 @@ -288,6 +290,11 @@
  68  #define AR933X_RESET_USB_PHY           BIT(4)
  69  #define AR933X_RESET_USBSUS_OVERRIDE   BIT(3)
  70
  71 +#define AR934X_RESET_USB_PHY_ANALOG    BIT(11)
  72 +#define AR934X_RESET_USB_HOST          BIT(5)
  73 +#define AR934X_RESET_USB_PHY           BIT(4)
  74 +#define AR934X_RESET_USBSUS_OVERRIDE   BIT(3)
  75 +
  76  #define AR933X_BOOTSTRAP_REF_CLK_40    BIT(0)
  77
  78  #define AR934X_BOOTSTRAP_SW_OPTION8    BIT(23)