ARM: mach-shmobile: ap4evb: Add USB host support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 63 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index e7602945a6a5..d3b8ca5d4041 100644
--- a/arch/arm/mach-shmobile/board-ap4evb.c
+++ b/arch/arm/mach-shmobile/board-ap4evb.c
@@ -33,6 +33,7 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/input/sh_keysc.h>
+#include <linux/usb/r8a66597.h>
 #include <mach/common.h>
 #include <mach/sh7372.h>
 #include <asm/mach-types.h>
@@ -94,6 +95,15 @@
  * OFF          | KEY / IrDA / IRQ      | IRQ           |
  */
 
+/*
+ * USB
+ *
+ * J7 : 1-2  MAX3355E VBUS
+ *      2-3  DC 5.0V
+ *
+ * S39: bit2: off
+ */
+
 /* MTD */
 static struct mtd_partition nor_flash_partitions[] = {
         {
@@ -233,11 +243,53 @@ static struct platform_device sdhi0_device = {
         .id             = 0,
 };
 
+/* USB1 */
+void usb1_host_port_power(int port, int power)
+{
+        if (!power) /* only power-on supported for now */
+                return;
+
+        /* set VBOUT/PWEN and EXTLP1 in DVSTCTR */
+        __raw_writew(__raw_readw(0xE68B0008) | 0x600, 0xE68B0008);
+}
+
+static struct r8a66597_platdata usb1_host_data = {
+        .on_chip        = 1,
+        .port_power     = usb1_host_port_power,
+};
+
+static struct resource usb1_host_resources[] = {
+        [0] = {
+                .name   = "USBHS",
+                .start  = 0xE68B0000,
+                .end    = 0xE68B00E6 - 1,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = 215,
+                .end    = 215,
+                .flags  = IORESOURCE_IRQ,
+        },
+};
+
+static struct platform_device usb1_host_device = {
+        .name   = "r8a66597_hcd",
+        .id     = 1,
+        .dev = {
+                .dma_mask               = NULL,         /*  not use dma */
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &usb1_host_data,
+        },
+        .num_resources  = ARRAY_SIZE(usb1_host_resources),
+        .resource       = usb1_host_resources,
+};
+
 static struct platform_device *ap4evb_devices[] __initdata = {
         &nor_flash_device,
         &smc911x_device,
         &keysc_device,
         &sdhi0_device,
+        &usb1_host_device,
 };
 
 /* TouchScreen (Needs SW3 set to OFF) */
@@ -351,6 +403,17 @@ static void __init ap4evb_init(void)
         i2c_register_board_info(1, i2c1_devices,
                                 ARRAY_SIZE(i2c1_devices));
 
+        /* USB enable */
+        gpio_request(GPIO_FN_VBUS0_1,    NULL);
+        gpio_request(GPIO_FN_IDIN_1_18,  NULL);
+        gpio_request(GPIO_FN_PWEN_1_115, NULL);
+        gpio_request(GPIO_FN_OVCN_1_114, NULL);
+        gpio_request(GPIO_FN_EXTLP_1,    NULL);
+        gpio_request(GPIO_FN_OVCN2_1,    NULL);
+
+        /* setup USB phy */
+        __raw_writew(0x8a0a, 0xE6058130);       /* USBCR2 */
+
         sh7372_add_standard_devices();
 
         platform_add_devices(ap4evb_devices, ARRAY_SIZE(ap4evb_devices));