target/linux/ar71xx/patches-3.2/013-MIPS-ath79-add-AR933X-specific-USB-platform-device-r.patch

   1 From 1355a27c85ae89225e738b9016656a406542ed1b Mon Sep 17 00:00:00 2001
   2 From: Gabor Juhos <juhosg@openwrt.org>
   3 Date: Mon, 20 Jun 2011 21:26:10 +0200
   4 Subject: [PATCH 13/27] MIPS: ath79: add AR933X specific USB platform device registration
   5
   6 Also select the USB_ARCH_HAS_EHCI symbol in order to make the
   7 EHCI driver available.
   8
   9 Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
  10 Cc: linux-mips@linux-mips.org
  11 Cc: Kathy Giori <kgiori@qca.qualcomm.com>
  12 Cc: "Luis R.  Rodriguez" <rodrigue@qca.qualcomm.com>
  13 Patchwork: https://patchwork.linux-mips.org/patch/2527/
  14 Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
  15 ---
  16  arch/mips/ath79/Kconfig                        |    1 +
  17  arch/mips/ath79/dev-usb.c                      |   19 +++++++++++++++++++
  18  arch/mips/include/asm/mach-ath79/ar71xx_regs.h |    7 +++++++
  19  3 files changed, 27 insertions(+), 0 deletions(-)
  20
  21 --- a/arch/mips/ath79/Kconfig
  22 +++ b/arch/mips/ath79/Kconfig
  23 @@ -42,6 +42,7 @@ config SOC_AR913X
  24         def_bool n
  25
  26  config SOC_AR933X
  27 +       select USB_ARCH_HAS_EHCI
  28         def_bool n
  29
  30  config ATH79_DEV_AR913X_WMAC
  31 --- a/arch/mips/ath79/dev-usb.c
  32 +++ b/arch/mips/ath79/dev-usb.c
  33 @@ -163,6 +163,23 @@ static void __init ar913x_usb_setup(void
  34         platform_device_register(&ath79_ehci_device);
  35  }
  36
  37 +static void __init ar933x_usb_setup(void)
  38 +{
  39 +       ath79_device_reset_set(AR933X_RESET_USBSUS_OVERRIDE);
  40 +       mdelay(10);
  41 +
  42 +       ath79_device_reset_clear(AR933X_RESET_USB_HOST);
  43 +       mdelay(10);
  44 +
  45 +       ath79_device_reset_clear(AR933X_RESET_USB_PHY);
  46 +       mdelay(10);
  47 +
  48 +       ath79_ehci_resources[0].start = AR933X_EHCI_BASE;
  49 +       ath79_ehci_resources[0].end = AR933X_EHCI_BASE + AR933X_EHCI_SIZE - 1;
  50 +       ath79_ehci_device.name = "ar933x-ehci";
  51 +       platform_device_register(&ath79_ehci_device);
  52 +}
  53 +
  54  void __init ath79_register_usb(void)
  55  {
  56         if (soc_is_ar71xx())
  57 @@ -173,6 +190,8 @@ void __init ath79_register_usb(void)
  58                 ar724x_usb_setup();
  59         else if (soc_is_ar913x())
  60                 ar913x_usb_setup();
  61 +       else if (soc_is_ar933x())
  62 +               ar933x_usb_setup();
  63         else
  64                 BUG();
  65  }
  66 --- a/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
  67 +++ b/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
  68 @@ -56,6 +56,9 @@
  69  #define AR933X_UART_BASE       (AR71XX_APB_BASE + 0x00020000)
  70  #define AR933X_UART_SIZE       0x14
  71
  72 +#define AR933X_EHCI_BASE       0x1b000000
  73 +#define AR933X_EHCI_SIZE       0x1000
  74 +
  75  /*
  76   * DDR_CTRL block
  77   */
  78 @@ -230,6 +233,10 @@
  79  #define AR913X_RESET_USB_HOST          BIT(5)
  80  #define AR913X_RESET_USB_PHY           BIT(4)
  81
  82 +#define AR933X_RESET_USB_HOST          BIT(5)
  83 +#define AR933X_RESET_USB_PHY           BIT(4)
  84 +#define AR933X_RESET_USBSUS_OVERRIDE   BIT(3)
  85 +
  86  #define AR933X_BOOTSTRAP_REF_CLK_40    BIT(0)
  87
  88  #define REV_ID_MAJOR_MASK              0xfff0