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>

diff --git a/arch/arm/mach-shmobile/board-ap4evb.c b/arch/arm/mach-shmobile/board-ap4evb.c
index e760294..d3b8ca5 100644 (file)
--- 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));