target/linux/ar71xx/patches-4.4/525-MIPS-ath79-enable-qca-usb-quirks.patch

   1 --- a/arch/mips/ath79/dev-usb.c
   2 +++ b/arch/mips/ath79/dev-usb.c
   3 @@ -37,6 +37,8 @@ static struct usb_ehci_pdata ath79_ehci_
   4  static struct usb_ehci_pdata ath79_ehci_pdata_v2 = {
   5         .caps_offset            = 0x100,
   6         .has_tt                 = 1,
   7 +       .qca_force_host_mode    = 1,
   8 +       .qca_force_16bit_ptw    = 1,
   9  };
  10
  11  static void __init ath79_usb_register(const char *name, int id,
  12 @@ -159,6 +161,9 @@ static void __init ar913x_usb_setup(void
  13         ath79_device_reset_clear(AR913X_RESET_USB_PHY);
  14         mdelay(10);
  15
  16 +       ath79_ehci_pdata_v2.qca_force_host_mode = 0;
  17 +       ath79_ehci_pdata_v2.qca_force_16bit_ptw = 0;
  18 +
  19         ath79_usb_register("ehci-platform", -1,
  20                            AR913X_EHCI_BASE, AR913X_EHCI_SIZE,
  21                            ATH79_CPU_IRQ(3),
  22 @@ -182,14 +187,34 @@ static void __init ar933x_usb_setup(void
  23                            &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
  24  }
  25
  26 -static void __init ar934x_usb_setup(void)
  27 +static void enable_tx_tx_idp_violation_fix(unsigned base)
  28  {
  29 -       u32 bootstrap;
  30 +       void __iomem *phy_reg;
  31 +       u32 t;
  32 +
  33 +       phy_reg = ioremap(base, 4);
  34 +       if (!phy_reg)
  35 +               return;
  36 +
  37 +       t = ioread32(phy_reg);
  38 +       t &= ~0xff;
  39 +       t |= 0x58;
  40 +       iowrite32(t, phy_reg);
  41 +
  42 +       iounmap(phy_reg);
  43 +}
  44
  45 -       bootstrap = ath79_reset_rr(AR934X_RESET_REG_BOOTSTRAP);
  46 -       if (bootstrap & AR934X_BOOTSTRAP_USB_MODE_DEVICE)
  47 +static void ar934x_usb_reset_notifier(struct platform_device *pdev)
  48 +{
  49 +       if (pdev->id != -1)
  50                 return;
  51
  52 +       enable_tx_tx_idp_violation_fix(0x18116c94);
  53 +       dev_info(&pdev->dev, "TX-TX IDP fix enabled\n");
  54 +}
  55 +
  56 +static void __init ar934x_usb_setup(void)
  57 +{
  58         ath79_device_reset_set(AR934X_RESET_USBSUS_OVERRIDE);
  59         udelay(1000);
  60
  61 @@ -202,14 +227,40 @@ static void __init ar934x_usb_setup(void
  62         ath79_device_reset_clear(AR934X_RESET_USB_HOST);
  63         udelay(1000);
  64
  65 +       if (ath79_soc_rev >= 3)
  66 +               ath79_ehci_pdata_v2.reset_notifier = ar934x_usb_reset_notifier;
  67 +
  68         ath79_usb_register("ehci-platform", -1,
  69                            AR934X_EHCI_BASE, AR934X_EHCI_SIZE,
  70                            ATH79_CPU_IRQ(3),
  71                            &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
  72  }
  73
  74 +static void qca955x_usb_reset_notifier(struct platform_device *pdev)
  75 +{
  76 +       u32 base;
  77 +
  78 +       switch (pdev->id) {
  79 +       case 0:
  80 +               base = 0x18116c94;
  81 +               break;
  82 +
  83 +       case 1:
  84 +               base = 0x18116e54;
  85 +               break;
  86 +
  87 +       default:
  88 +               return;
  89 +       }
  90 +
  91 +       enable_tx_tx_idp_violation_fix(base);
  92 +       dev_info(&pdev->dev, "TX-TX IDP fix enabled\n");
  93 +}
  94 +
  95  static void __init qca955x_usb_setup(void)
  96  {
  97 +       ath79_ehci_pdata_v2.reset_notifier = qca955x_usb_reset_notifier;
  98 +
  99         ath79_usb_register("ehci-platform", 0,
 100                            QCA955X_EHCI0_BASE, QCA955X_EHCI_SIZE,
 101                            ATH79_IP3_IRQ(0),