target/linux/ar71xx/patches-4.4/920-usb-chipidea-AR933x-platform-support.patch

   1 Index: linux-4.4.4/arch/mips/include/asm/mach-ath79/ar71xx_regs.h
   2 ===================================================================
   3 --- linux-4.4.4.orig/arch/mips/include/asm/mach-ath79/ar71xx_regs.h     2016-03-31 21:43:10.595132564 +0300
   4 +++ linux-4.4.4/arch/mips/include/asm/mach-ath79/ar71xx_regs.h  2016-03-31 21:56:21.463152017 +0300
   5 @@ -641,6 +641,7 @@
   6
   7  #define AR933X_BOOTSTRAP_MDIO_GPIO_EN  BIT(18)
   8  #define AR933X_BOOTSTRAP_EEPBUSY       BIT(4)
   9 +#define AR933X_BOOTSTRAP_USB_MODE_HOST BIT(3)
  10  #define AR933X_BOOTSTRAP_REF_CLK_40    BIT(0)
  11
  12  #define AR934X_BOOTSTRAP_SW_OPTION8    BIT(23)
  13 @@ -670,6 +671,8 @@
  14
  15  #define QCA956X_BOOTSTRAP_REF_CLK_40   BIT(2)
  16
  17 +#define AR933X_USB_CONFIG_HOST_ONLY   BIT(8)
  18 +
  19  #define AR934X_PCIE_WMAC_INT_WMAC_MISC         BIT(0)
  20  #define AR934X_PCIE_WMAC_INT_WMAC_TX           BIT(1)
  21  #define AR934X_PCIE_WMAC_INT_WMAC_RXLP         BIT(2)
  22 Index: linux-4.4.4/arch/mips/ath79/dev-usb.c
  23 ===================================================================
  24 --- linux-4.4.4.orig/arch/mips/ath79/dev-usb.c  2016-03-31 21:43:10.407132560 +0300
  25 +++ linux-4.4.4/arch/mips/ath79/dev-usb.c       2016-03-31 21:43:10.707132567 +0300
  26 @@ -19,6 +19,9 @@
  27  #include <linux/platform_device.h>
  28  #include <linux/usb/ehci_pdriver.h>
  29  #include <linux/usb/ohci_pdriver.h>
  30 +#include <linux/usb/otg.h>
  31 +#include <linux/usb/chipidea.h>
  32 +#include <linux/usb/usb_phy_generic.h>
  33
  34  #include <asm/mach-ath79/ath79.h>
  35  #include <asm/mach-ath79/ar71xx_regs.h>
  36 @@ -170,6 +173,54 @@
  37                            &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
  38  }
  39
  40 +static void __init ar933x_usb_setup_ctrl_config(void)
  41 +{
  42 +       void __iomem *usb_ctrl_base, *usb_config_reg;
  43 +       u32 usb_config;
  44 +
  45 +       usb_ctrl_base = ioremap(AR71XX_USB_CTRL_BASE, AR71XX_USB_CTRL_SIZE);
  46 +       usb_config_reg = usb_ctrl_base + AR71XX_USB_CTRL_REG_CONFIG;
  47 +       usb_config = __raw_readl(usb_config_reg);
  48 +       usb_config &= ~AR933X_USB_CONFIG_HOST_ONLY;
  49 +       __raw_writel(usb_config, usb_config_reg);
  50 +       iounmap(usb_ctrl_base);
  51 +}
  52 +
  53 +static void __init ar933x_ci_usb_setup(void)
  54 +{
  55 +       u32 bootstrap;
  56 +       enum usb_dr_mode dr_mode;
  57 +       struct ci_hdrc_platform_data ci_pdata;
  58 +       struct platform_device *phy;
  59 +
  60 +       bootstrap = ath79_reset_rr(AR933X_RESET_REG_BOOTSTRAP);
  61 +       if (bootstrap & AR933X_BOOTSTRAP_USB_MODE_HOST) {
  62 +               dr_mode = USB_DR_MODE_HOST;
  63 +       } else {
  64 +               dr_mode = USB_DR_MODE_PERIPHERAL;
  65 +               ar933x_usb_setup_ctrl_config();
  66 +       }
  67 +
  68 +       memset(&ci_pdata, 0, sizeof(ci_pdata));
  69 +       ci_pdata.name = "ci_hdrc_ar933x";
  70 +       ci_pdata.capoffset = DEF_CAPOFFSET;
  71 +       ci_pdata.dr_mode = dr_mode;
  72 +       ci_pdata.flags = CI_HDRC_DUAL_ROLE_NOT_OTG | CI_HDRC_DP_ALWAYS_PULLUP;
  73 +       ci_pdata.vbus_extcon.edev = ERR_PTR(-ENODEV);
  74 +       ci_pdata.id_extcon.edev = ERR_PTR(-ENODEV);
  75 +       ci_pdata.itc_setting = 1;
  76 +
  77 +       /* register a nop PHY */
  78 +       phy = usb_phy_generic_register();
  79 +       if (IS_ERR(phy))
  80 +               return;
  81 +
  82 +       ath79_usb_register("ci_hdrc", -1,
  83 +                          AR933X_EHCI_BASE, AR933X_EHCI_SIZE,
  84 +                          ATH79_CPU_IRQ(3),
  85 +                          &ci_pdata, sizeof(ci_pdata));
  86 +}
  87 +
  88  static void __init ar933x_usb_setup(void)
  89  {
  90         ath79_device_reset_set(AR933X_RESET_USBSUS_OVERRIDE);
  91 @@ -185,6 +236,8 @@
  92                            AR933X_EHCI_BASE, AR933X_EHCI_SIZE,
  93                            ATH79_CPU_IRQ(3),
  94                            &ath79_ehci_pdata_v2, sizeof(ath79_ehci_pdata_v2));
  95 +
  96 +       ar933x_ci_usb_setup();
  97  }
  98
  99  static void enable_tx_tx_idp_violation_fix(unsigned base)