sh: add r8a66597 usb0 host to the se7724 board

Add USB host support for port CN27 on the Solution Engine 7724
board. The r8a66597-hcd driver is hooked up as a platform device
and some registers are configured to enable the USB host function.
The hardware driving the USB port is the on-chip USB0 block in
the sh7724 processor configured as USB host controller.

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

diff --git a/arch/sh/boards/mach-se/7724/setup.c b/arch/sh/boards/mach-se/7724/setup.c
index c050a8d76dfd1c05d9ea19e3c52fd1bc6919dad1..8fed45a2fb8550dd4cf09f3f8844269194d613cd 100644 (file)
--- a/arch/sh/boards/mach-se/7724/setup.c
+++ b/arch/sh/boards/mach-se/7724/setup.c
@@ -19,6 +19,7 @@
 #include <linux/smc91x.h>
 #include <linux/gpio.h>
 #include <linux/input.h>
+#include <linux/usb/r8a66597.h>
 #include <video/sh_mobile_lcdc.h>
 #include <media/sh_mobile_ceu.h>
 #include <asm/io.h>
@@ -302,6 +303,34 @@ static struct platform_device sh_eth_device = {
        .resource = sh_eth_resources,
 };
 
+static struct r8a66597_platdata sh7724_usb0_host_data = {
+};
+
+static struct resource sh7724_usb0_host_resources[] = {
+       [0] = {
+               .start  = 0xa4d80000,
+               .end    = 0xa4d800ff,
+               .flags  = IORESOURCE_MEM,
+       },
+       [1] = {
+               .start  = 65,
+               .end    = 65,
+               .flags  = IORESOURCE_IRQ | IRQF_TRIGGER_LOW,
+       },
+};
+
+static struct platform_device sh7724_usb0_host_device = {
+       .name           = "r8a66597_hcd",
+       .id             = 0,
+       .dev = {
+               .dma_mask               = NULL,         /*  not use dma */
+               .coherent_dma_mask      = 0xffffffff,
+               .platform_data          = &sh7724_usb0_host_data,
+       },
+       .num_resources  = ARRAY_SIZE(sh7724_usb0_host_resources),
+       .resource       = sh7724_usb0_host_resources,
+};
+
 static struct platform_device *ms7724se_devices[] __initdata = {
        &heartbeat_device,
        &smc91x_eth_device,
@@ -311,6 +340,7 @@ static struct platform_device *ms7724se_devices[] __initdata = {
        &ceu1_device,
        &keysc_device,
        &sh_eth_device,
+       &sh7724_usb0_host_device,
 };
 
 #define EEPROM_OP   0xBA206000
@@ -364,6 +394,7 @@ static void __init sh_eth_init(void)
 #define SW4140    0xBA201000
 #define FPGA_OUT  0xBA200400
 #define PORT_HIZA 0xA4050158
+#define PORT_MSELCRB 0xA4050182
 
 #define SW41_A    0x0100
 #define SW41_B    0x0200
@@ -373,6 +404,7 @@ static void __init sh_eth_init(void)
 #define SW41_F    0x2000
 #define SW41_G    0x4000
 #define SW41_H    0x8000
+
 static int __init devices_setup(void)
 {
        u16 sw = ctrl_inw(SW4140); /* select camera, monitor */
@@ -385,6 +417,12 @@ static int __init devices_setup(void)
                    (1 << 14)), /* RMII */
                  FPGA_OUT);
 
+       /* turn on USB clocks, use external clock */
+       ctrl_outw((ctrl_inw(PORT_MSELCRB) & ~0xc000) | 0x8000, PORT_MSELCRB);
+
+       /* enable USB0 port */
+       ctrl_outw(0x0600, 0xa40501d4);
+
        /* enable IRQ 0,1,2 */
        gpio_request(GPIO_FN_INTC_IRQ0, NULL);
        gpio_request(GPIO_FN_INTC_IRQ1, NULL);