1 files changed, 99 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c
index be526746e01e..747b9dedab88 100644
--- a/arch/arm/mach-at91/at91cap9_devices.c
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -84,6 +84,105 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data) {}
 
 
 /* --------------------------------------------------------------------
+ *  USB HS Device (Gadget)
+ * -------------------------------------------------------------------- */
+
+#if defined(CONFIG_USB_GADGET_ATMEL_USBA) || defined(CONFIG_USB_GADGET_ATMEL_USBA_MODULE)
+
+static struct resource usba_udc_resources[] = {
+        [0] = {
+                .start  = AT91CAP9_UDPHS_FIFO,
+                .end    = AT91CAP9_UDPHS_FIFO + SZ_512K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = AT91CAP9_BASE_UDPHS,
+                .end    = AT91CAP9_BASE_UDPHS + SZ_1K - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [2] = {
+                .start  = AT91CAP9_ID_UDPHS,
+                .end    = AT91CAP9_ID_UDPHS,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+#define EP(nam, idx, maxpkt, maxbk, dma, isoc)                  \
+        [idx] = {                                               \
+                .name           = nam,                          \
+                .index          = idx,                          \
+                .fifo_size      = maxpkt,                       \
+                .nr_banks       = maxbk,                        \
+                .can_dma        = dma,                          \
+                .can_isoc       = isoc,                         \
+        }
+
+static struct usba_ep_data usba_udc_ep[] = {
+        EP("ep0", 0,   64, 1, 0, 0),
+        EP("ep1", 1, 1024, 3, 1, 1),
+        EP("ep2", 2, 1024, 3, 1, 1),
+        EP("ep3", 3, 1024, 2, 1, 1),
+        EP("ep4", 4, 1024, 2, 1, 1),
+        EP("ep5", 5, 1024, 2, 1, 0),
+        EP("ep6", 6, 1024, 2, 1, 0),
+        EP("ep7", 7, 1024, 2, 0, 0),
+};
+
+#undef EP
+
+/*
+ * pdata doesn't have room for any endpoints, so we need to
+ * append room for the ones we need right after it.
+ */
+static struct {
+        struct usba_platform_data pdata;
+        struct usba_ep_data ep[8];
+} usba_udc_data;
+
+static struct platform_device at91_usba_udc_device = {
+        .name           = "atmel_usba_udc",
+        .id             = -1,
+        .dev            = {
+                                .platform_data  = &usba_udc_data.pdata,
+        },
+        .resource       = usba_udc_resources,
+        .num_resources  = ARRAY_SIZE(usba_udc_resources),
+};
+
+void __init at91_add_device_usba(struct usba_platform_data *data)
+{
+        at91_sys_write(AT91_MATRIX_UDPHS, AT91_MATRIX_SELECT_UDPHS |
+                                          AT91_MATRIX_UDPHS_BYPASS_LOCK);
+
+        /*
+         * Invalid pins are 0 on AT91, but the usba driver is shared
+         * with AVR32, which use negative values instead. Once/if
+         * gpio_is_valid() is ported to AT91, revisit this code.
+         */
+        usba_udc_data.pdata.vbus_pin = -EINVAL;
+        usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
+        memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));;
+
+        if (data && data->vbus_pin > 0) {
+                at91_set_gpio_input(data->vbus_pin, 0);
+                at91_set_deglitch(data->vbus_pin, 1);
+                usba_udc_data.pdata.vbus_pin = data->vbus_pin;
+        }
+
+        /* Pullup pin is handled internally by USB device peripheral */
+
+        /* Clocks */
+        at91_clock_associate("utmi_clk", &at91_usba_udc_device.dev, "hclk");
+        at91_clock_associate("udphs_clk", &at91_usba_udc_device.dev, "pclk");
+
+        platform_device_register(&at91_usba_udc_device);
+}
+#else
+void __init at91_add_device_usba(struct usba_platform_data *data) {}
+#endif
+
+
+/* --------------------------------------------------------------------
  *  Ethernet
  * -------------------------------------------------------------------- */