target/linux/gemini/patches-3.18/130-usb-ehci-fot2g.patch

   1 --- a/arch/arm/mach-gemini/devices.c
   2 +++ b/arch/arm/mach-gemini/devices.c
   3 @@ -188,3 +188,64 @@ int platform_register_ethernet(struct ge
   4
   5         return platform_device_register(&ethernet_device);
   6  }
   7 +
   8 +static struct resource usb0_resources[] = {
   9 +       {
  10 +               .start  = GEMINI_USB0_BASE,
  11 +               .end    = GEMINI_USB0_BASE + 0xfff,
  12 +               .flags  = IORESOURCE_MEM,
  13 +       },
  14 +       {
  15 +               .start  = IRQ_USB0,
  16 +               .end    = IRQ_USB0,
  17 +               .flags  = IORESOURCE_IRQ,
  18 +       },
  19 +};
  20 +
  21 +static struct resource usb1_resources[] = {
  22 +       {
  23 +               .start  = GEMINI_USB1_BASE,
  24 +               .end    = GEMINI_USB1_BASE + 0xfff,
  25 +               .flags  = IORESOURCE_MEM,
  26 +       },
  27 +       {
  28 +               .start  = IRQ_USB1,
  29 +               .end    = IRQ_USB1,
  30 +               .flags  = IORESOURCE_IRQ,
  31 +       },
  32 +};
  33 +
  34 +static u64 usb0_dmamask = 0xffffffffUL;
  35 +static u64 usb1_dmamask = 0xffffffffUL;
  36 +
  37 +static struct platform_device usb_device[] = {
  38 +       {
  39 +               .name   = "ehci-fotg2",
  40 +               .id     = 0,
  41 +               .dev    = {
  42 +                       .dma_mask = &usb0_dmamask,
  43 +                       .coherent_dma_mask = 0xffffffff,
  44 +               },
  45 +               .num_resources  = ARRAY_SIZE(usb0_resources),
  46 +               .resource       = usb0_resources,
  47 +       },
  48 +       {
  49 +               .name   = "ehci-fotg2",
  50 +               .id     = 1,
  51 +               .dev    = {
  52 +                       .dma_mask = &usb1_dmamask,
  53 +                       .coherent_dma_mask = 0xffffffff,
  54 +               },
  55 +               .num_resources  = ARRAY_SIZE(usb1_resources),
  56 +               .resource       = usb1_resources,
  57 +       },
  58 +};
  59 +
  60 +int __init platform_register_usb(unsigned int id)
  61 +{
  62 +       if (id > 1)
  63 +               return -EINVAL;
  64 +
  65 +       return platform_device_register(&usb_device[id]);
  66 +}
  67 +
  68 --- a/arch/arm/mach-gemini/common.h
  69 +++ b/arch/arm/mach-gemini/common.h
  70 @@ -28,6 +28,7 @@ extern int platform_register_pflash(unsi
  71                                     unsigned int nr_parts);
  72  extern int platform_register_watchdog(void);
  73  extern int platform_register_ethernet(struct gemini_gmac_platform_data *pdata);
  74 +extern int platform_register_usb(unsigned int id);
  75
  76  extern void gemini_restart(enum reboot_mode mode, const char *cmd);
  77
  78 --- a/drivers/usb/host/ehci-hcd.c
  79 +++ b/drivers/usb/host/ehci-hcd.c
  80 @@ -346,11 +346,13 @@ static void ehci_silence_controller(stru
  81         ehci->rh_state = EHCI_RH_HALTED;
  82         ehci_turn_off_all_ports(ehci);
  83
  84 +#ifndef CONFIG_ARCH_GEMINI
  85         /* make BIOS/etc use companion controller during reboot */
  86         ehci_writel(ehci, 0, &ehci->regs->configured_flag);
  87
  88         /* unblock posted writes */
  89         ehci_readl(ehci, &ehci->regs->configured_flag);
  90 +#endif
  91         spin_unlock_irq(&ehci->lock);
  92  }
  93
  94 @@ -602,7 +604,9 @@ static int ehci_run (struct usb_hcd *hcd
  95         // Philips, Intel, and maybe others need CMD_RUN before the
  96         // root hub will detect new devices (why?); NEC doesn't
  97         ehci->command &= ~(CMD_LRESET|CMD_IAAD|CMD_PSE|CMD_ASE|CMD_RESET);
  98 +#ifndef CONFIG_ARCH_GEMINI
  99         ehci->command |= CMD_RUN;
 100 +#endif
 101         ehci_writel(ehci, ehci->command, &ehci->regs->command);
 102         dbg_cmd (ehci, "init", ehci->command);
 103
 104 @@ -622,9 +626,11 @@ static int ehci_run (struct usb_hcd *hcd
 105          */
 106         down_write(&ehci_cf_port_reset_rwsem);
 107         ehci->rh_state = EHCI_RH_RUNNING;
 108 +#ifndef CONFIG_ARCH_GEMINI
 109         ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
 110         ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
 111         msleep(5);
 112 +#endif
 113         up_write(&ehci_cf_port_reset_rwsem);
 114         ehci->last_periodic_enable = ktime_get_real();
 115
 116 @@ -762,9 +768,10 @@ static irqreturn_t ehci_irq (struct usb_
 117                 pcd_status = status;
 118
 119                 /* resume root hub? */
 120 +#ifndef CONFIG_ARCH_GEMINI
 121                 if (ehci->rh_state == EHCI_RH_SUSPENDED)
 122                         usb_hcd_resume_root_hub(hcd);
 123 -
 124 +#endif
 125                 /* get per-port change detect bits */
 126                 if (ehci->has_ppcd)
 127                         ppcd = status >> 16;
 128 @@ -1243,6 +1250,11 @@ MODULE_DESCRIPTION(DRIVER_DESC);
 129  MODULE_AUTHOR (DRIVER_AUTHOR);
 130  MODULE_LICENSE ("GPL");
 131
 132 +#ifdef CONFIG_ARCH_GEMINI
 133 +#include "ehci-fotg2.c"
 134 +#define PLATFORM_DRIVER                ehci_fotg2_driver
 135 +#endif
 136 +
 137  #ifdef CONFIG_USB_EHCI_FSL
 138  #include "ehci-fsl.c"
 139  #define        PLATFORM_DRIVER         ehci_fsl_driver
 140 --- a/drivers/usb/host/ehci-timer.c
 141 +++ b/drivers/usb/host/ehci-timer.c
 142 @@ -208,7 +208,9 @@ static void ehci_handle_controller_death
 143
 144         /* Clean up the mess */
 145         ehci->rh_state = EHCI_RH_HALTED;
 146 +#ifndef CONFIG_ARCH_GEMINI
 147         ehci_writel(ehci, 0, &ehci->regs->configured_flag);
 148 +#endif
 149         ehci_writel(ehci, 0, &ehci->regs->intr_enable);
 150         ehci_work(ehci);
 151         end_unlink_async(ehci);
 152 --- a/drivers/usb/host/ehci.h
 153 +++ b/drivers/usb/host/ehci.h
 154 @@ -656,7 +656,12 @@ static inline unsigned int
 155  ehci_port_speed(struct ehci_hcd *ehci, unsigned int portsc)
 156  {
 157         if (ehci_is_TDI(ehci)) {
 158 -               switch ((portsc >> (ehci->has_hostpc ? 25 : 26)) & 3) {
 159 +#ifdef CONFIG_ARCH_GEMINI
 160 +               portsc = readl(ehci_to_hcd(ehci)->regs + 0x80);
 161 +               switch ((portsc>>22)&3) {
 162 +#else
 163 +               switch ((portsc>>26)&3) {
 164 +#endif
 165                 case 0:
 166                         return 0;
 167                 case 1:
 168 --- a/drivers/usb/host/ehci-hub.c
 169 +++ b/drivers/usb/host/ehci-hub.c
 170 @@ -1075,6 +1075,11 @@ int ehci_hub_control(
 171                         /* see what we found out */
 172                         temp = check_reset_complete (ehci, wIndex, status_reg,
 173                                         ehci_readl(ehci, status_reg));
 174 +#ifdef CONFIG_ARCH_GEMINI
 175 +                       /* restart schedule */
 176 +                       ehci->command |= CMD_RUN;
 177 +                       ehci_writel(ehci, ehci->command, &ehci->regs->command);
 178 +#endif
 179                 }
 180
 181                 /* transfer dedicated ports to the companion hc */
 182 --- a/include/linux/usb/ehci_def.h
 183 +++ b/include/linux/usb/ehci_def.h
 184 @@ -110,8 +110,13 @@ struct ehci_regs {
 185         u32             frame_list;     /* points to periodic list */
 186         /* ASYNCLISTADDR: offset 0x18 */
 187         u32             async_next;     /* address of next async queue head */
 188 -
 189 +#ifndef CONFIG_ARCH_GEMINI
 190         u32             reserved1[2];
 191 +#else
 192 +       u32             reserved1;
 193 +       /* PORTSC: offset 0x20 for Faraday OTG */
 194 +       u32             port_status[1];
 195 +#endif
 196
 197         /* TXFILLTUNING: offset 0x24 */
 198         u32             txfill_tuning;  /* TX FIFO Tuning register */
 199 @@ -123,8 +128,11 @@ struct ehci_regs {
 200         u32             configured_flag;
 201  #define FLAG_CF                (1<<0)          /* true: we'll support "high speed" */
 202
 203 +#ifndef CONFIG_ARCH_GEMINI
 204         /* PORTSC: offset 0x44 */
 205         u32             port_status[0]; /* up to N_PORTS */
 206 +#endif
 207 +
 208  /* EHCI 1.1 addendum */
 209  #define PORTSC_SUSPEND_STS_ACK 0
 210  #define PORTSC_SUSPEND_STS_NYET 1