sh: add r8a66597 usb1 gadget to the se7724 board

Add USB gadget support for port CN26 on the Solution Engine 7724
board. The r8a66597-udc driver is hooked up as a platform device
and some registers are configured to enable the USB in gadget mode.
The hardware driving the USB port is the on-chip USB1 block in
the sh7724 processor configured as USB gadget controller.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 33 insertions, 0 deletions

diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index c04e134474d8..e6bd09f2e14a 100644
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -341,6 +341,35 @@ static struct platform_device sh7724_usb0_host_device = {
         .resource       = sh7724_usb0_host_resources,
 };
 
+static struct r8a66597_platdata sh7724_usb1_gadget_data = {
+        .on_chip = 1,
+};
+
+static struct resource sh7724_usb1_gadget_resources[] = {
+        [0] = {
+                .start  = 0xa4d90000,
+                .end    = 0xa4d90123,
+                .flags  = IORESOURCE_MEM,
+        },
+        [1] = {
+                .start  = 66,
+                .end    = 66,
+                .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
+        },
+};
+
+static struct platform_device sh7724_usb1_gadget_device = {
+        .name           = "r8a66597_udc",
+        .id             = 1, /* USB1 */
+        .dev = {
+                .dma_mask               = NULL,         /*  not use dma */
+                .coherent_dma_mask      = 0xffffffff,
+                .platform_data          = &sh7724_usb1_gadget_data,
+        },
+        .num_resources  = ARRAY_SIZE(sh7724_usb1_gadget_resources),
+        .resource       = sh7724_usb1_gadget_resources,
+};
+
 static struct platform_device *ms7724se_devices[] __initdata = {
         &heartbeat_device,
         &smc91x_eth_device,
@@ -351,6 +380,7 @@ static struct platform_device *ms7724se_devices[] __initdata = {
         &keysc_device,
         &sh_eth_device,
         &sh7724_usb0_host_device,
+        &sh7724_usb1_gadget_device,
 };
 
 #define EEPROM_OP   0xBA206000
@@ -459,6 +489,9 @@ static int __init devices_setup(void)
         /* enable USB0 port */
         ctrl_outw(0x0600, 0xa40501d4);
 
+        /* enable USB1 port */
+        ctrl_outw(0x0600, 0xa4050192);
+
         /* enable IRQ 0,1,2 */
         gpio_request(GPIO_FN_INTC_IRQ0, NULL);
         gpio_request(GPIO_FN_INTC_IRQ1, NULL);