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 c050a8d..8fed45a 100644
--- 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 @@
.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 @@
&ceu1_device,
&keysc_device,
&sh_eth_device,
+ &sh7724_usb0_host_device,
};
#define EEPROM_OP 0xBA206000
@@ -364,6 +394,7 @@
#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 @@
#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 @@
(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);
