target/linux/ramips/patches-3.10/0019-USB-add-OHCI-EHCI-OF-binding.patch

   1 From 40b9d3026ed0b3bcd59f90391195df5b2adabad2 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Sun, 14 Jul 2013 23:34:53 +0200
   4 Subject: [PATCH 19/33] USB: add OHCI/EHCI OF binding
   5
   6 based on f3bc64d6d1f21c1b92d75f233a37b75d77af6963
   7
   8 Signed-off-by: John Crispin <blogic@openwrt.org>
   9 ---
  10  arch/mips/ralink/Kconfig         |    2 ++
  11  drivers/usb/Makefile             |    3 ++-
  12  drivers/usb/host/ehci-platform.c |   19 +++++++++++++++----
  13  drivers/usb/host/ohci-platform.c |   37 ++++++++++++++++++++++++++++++++-----
  14  4 files changed, 51 insertions(+), 10 deletions(-)
  15
  16 Index: linux-3.10.1/arch/mips/ralink/Kconfig
  17 ===================================================================
  18 --- linux-3.10.1.orig/arch/mips/ralink/Kconfig  2013-07-15 17:35:28.021178556 +0200
  19 +++ linux-3.10.1/arch/mips/ralink/Kconfig       2013-07-15 20:00:19.501385660 +0200
  20 @@ -24,6 +24,8 @@
  21
  22         config SOC_MT7620
  23                 bool "MT7620"
  24 +               select USB_ARCH_HAS_OHCI
  25 +               select USB_ARCH_HAS_EHCI
  26                 select HW_HAS_PCI
  27
  28  endchoice
  29 Index: linux-3.10.1/drivers/usb/Makefile
  30 ===================================================================
  31 --- linux-3.10.1.orig/drivers/usb/Makefile      2013-07-13 20:42:41.000000000 +0200
  32 +++ linux-3.10.1/drivers/usb/Makefile   2013-07-15 19:47:26.725367249 +0200
  33 @@ -10,6 +10,8 @@
  34
  35  obj-$(CONFIG_USB_MON)          += mon/
  36
  37 +obj-$(CONFIG_USB_PHY)          += phy/
  38 +
  39  obj-$(CONFIG_PCI)              += host/
  40  obj-$(CONFIG_USB_EHCI_HCD)     += host/
  41  obj-$(CONFIG_USB_ISP116X_HCD)  += host/
  42 @@ -44,7 +46,6 @@
  43  obj-$(CONFIG_USB_SERIAL)       += serial/
  44
  45  obj-$(CONFIG_USB)              += misc/
  46 -obj-$(CONFIG_USB_PHY)          += phy/
  47  obj-$(CONFIG_EARLY_PRINTK_DBGP)        += early/
  48
  49  obj-$(CONFIG_USB_ATM)          += atm/
  50 Index: linux-3.10.1/drivers/usb/host/ehci-platform.c
  51 ===================================================================
  52 --- linux-3.10.1.orig/drivers/usb/host/ehci-platform.c  2013-07-15 17:35:22.761178428 +0200
  53 +++ linux-3.10.1/drivers/usb/host/ehci-platform.c       2013-07-15 19:47:14.525366961 +0200
  54 @@ -29,6 +29,8 @@
  55  #include <linux/usb.h>
  56  #include <linux/usb/hcd.h>
  57  #include <linux/usb/ehci_pdriver.h>
  58 +#include <linux/usb/phy.h>
  59 +#include <linux/usb/otg.h>
  60
  61  #include "ehci.h"
  62
  63 @@ -118,6 +120,15 @@
  64         hcd->rsrc_start = res_mem->start;
  65         hcd->rsrc_len = resource_size(res_mem);
  66
  67 +#ifdef CONFIG_USB_PHY
  68 +       hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
  69 +       if (!IS_ERR_OR_NULL(hcd->phy)) {
  70 +               otg_set_host(hcd->phy->otg,
  71 +                               &hcd->self);
  72 +               usb_phy_init(hcd->phy);
  73 +       }
  74 +#endif
  75 +
  76         hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
  77         if (IS_ERR(hcd->regs)) {
  78                 err = PTR_ERR(hcd->regs);
  79 @@ -155,6 +166,9 @@
  80         if (pdata == &ehci_platform_defaults)
  81                 dev->dev.platform_data = NULL;
  82
  83 +       if (pdata == &ehci_platform_defaults)
  84 +               dev->dev.platform_data = NULL;
  85 +
  86         return 0;
  87  }
  88
  89 @@ -199,9 +213,8 @@
  90  #define ehci_platform_resume   NULL
  91  #endif /* CONFIG_PM */
  92
  93 -static const struct of_device_id vt8500_ehci_ids[] = {
  94 -       { .compatible = "via,vt8500-ehci", },
  95 -       { .compatible = "wm,prizm-ehci", },
  96 +static const struct of_device_id ralink_ehci_ids[] = {
  97 +       { .compatible = "ralink,rt3xxx-ehci", },
  98         {}
  99  };
 100
 101 @@ -225,7 +238,7 @@
 102                 .owner  = THIS_MODULE,
 103                 .name   = "ehci-platform",
 104                 .pm     = &ehci_platform_pm_ops,
 105 -               .of_match_table = of_match_ptr(vt8500_ehci_ids),
 106 +               .of_match_table = of_match_ptr(ralink_ehci_ids),
 107         }
 108  };
 109
 110 Index: linux-3.10.1/drivers/usb/host/ohci-platform.c
 111 ===================================================================
 112 --- linux-3.10.1.orig/drivers/usb/host/ohci-platform.c  2013-07-13 20:42:41.000000000 +0200
 113 +++ linux-3.10.1/drivers/usb/host/ohci-platform.c       2013-07-15 19:55:15.913378428 +0200
 114 @@ -16,6 +16,10 @@
 115  #include <linux/err.h>
 116  #include <linux/platform_device.h>
 117  #include <linux/usb/ohci_pdriver.h>
 118 +#include <linux/dma-mapping.h>
 119 +#include <linux/of.h>
 120 +
 121 +static struct usb_ohci_pdata ohci_platform_defaults;
 122
 123  static int ohci_platform_reset(struct usb_hcd *hcd)
 124  {
 125 @@ -88,14 +92,22 @@
 126  {
 127         struct usb_hcd *hcd;
 128         struct resource *res_mem;
 129 -       struct usb_ohci_pdata *pdata = dev->dev.platform_data;
 130 +       struct usb_ohci_pdata *pdata;
 131         int irq;
 132         int err = -ENOMEM;
 133
 134 -       if (!pdata) {
 135 -               WARN_ON(1);
 136 -               return -ENODEV;
 137 -       }
 138 +       /*
 139 +        * use reasonable defaults so platforms don't have to provide these.
 140 +        * with DT probing on ARM, none of these are set.
 141 +        */
 142 +       if (!dev->dev.platform_data)
 143 +               dev->dev.platform_data = &ohci_platform_defaults;
 144 +       if (!dev->dev.dma_mask)
 145 +               dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
 146 +       if (!dev->dev.coherent_dma_mask)
 147 +               dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 148 +
 149 +       pdata = dev->dev.platform_data;
 150
 151         if (usb_disabled())
 152                 return -ENODEV;
 153 @@ -128,6 +140,12 @@
 154         hcd->rsrc_start = res_mem->start;
 155         hcd->rsrc_len = resource_size(res_mem);
 156
 157 +#ifdef CONFIG_USB_PHY
 158 +       hcd->phy = devm_usb_get_phy(&dev->dev, USB_PHY_TYPE_USB2);
 159 +       if (!IS_ERR_OR_NULL(hcd->phy))
 160 +               usb_phy_init(hcd->phy);
 161 +#endif
 162 +
 163         hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
 164         if (IS_ERR(hcd->regs)) {
 165                 err = PTR_ERR(hcd->regs);
 166 @@ -162,6 +180,9 @@
 167         if (pdata->power_off)
 168                 pdata->power_off(dev);
 169
 170 +       if (pdata == &ohci_platform_defaults)
 171 +               dev->dev.platform_data = NULL;
 172 +
 173         return 0;
 174  }
 175
 176 @@ -201,6 +222,11 @@
 177  #define ohci_platform_resume   NULL
 178  #endif /* CONFIG_PM */
 179
 180 +static const struct of_device_id ralink_ohci_ids[] = {
 181 +       { .compatible = "ralink,rt3xxx-ohci", },
 182 +       {}
 183 +};
 184 +
 185  static const struct platform_device_id ohci_platform_table[] = {
 186         { "ohci-platform", 0 },
 187         { }
 188 @@ -221,5 +247,6 @@
 189                 .owner  = THIS_MODULE,
 190                 .name   = "ohci-platform",
 191                 .pm     = &ohci_platform_pm_ops,
 192 +               .of_match_table = of_match_ptr(ralink_ohci_ids),
 193         }
 194  };