ARM: mach-shmobile: mackerel: Add USB1(Host) support

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

1 files changed, 68 insertions, 1 deletions

diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c
index e6407cc6fec7..f9418e72900b 100644
--- a/arch/arm/mach-shmobile/board-mackerel.c
+++ b/arch/arm/mach-shmobile/board-mackerel.c
@@ -33,6 +33,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/smsc911x.h>
+#include <linux/usb/r8a66597.h>
 
 #include <video/sh_mobile_lcdc.h>
 
@@ -114,8 +115,22 @@
  * IRQ9  | ICR2A.IRQ9SA=0010  | KEY(TCA6408)       | Low
  * IRQ21 | ICR4A.IRQ21SA=0011 | Sensor(ADXL345)    | High
  * IRQ22 | ICR4A.IRQ22SA=0011 | Sensor(AK8975)     | High
+ */
 
-*/
+/*
+ * USB
+ *
+ * USB0 : CN22 : Function
+ * USB1 : CN31 : Function/Host *1
+ *
+ * J30 (for CN31) *1
+ * ----------+---------------+-------------
+ * 1-2 short | VBUS 5V       | Host
+ * open      | external VBUS | Function
+ *
+ * *1
+ * CN31 is used as Host in Linux.
+ */
 
 /* MTD */
 static struct mtd_partition nor_flash_partitions[] = {
@@ -254,10 +269,51 @@ static struct platform_device lcdc_device = {
         },
 };
 
+/* USB1 (Host) */
+static void usb1_host_port_power(int port, int power)
+{
+        if (!power) /* only power-on is 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  = evt2irq(0x1ce0) /* USB1_USB1I0 */,
+                .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 *mackerel_devices[] __initdata = {
         &nor_flash_device,
         &smc911x_device,
         &lcdc_device,
+        &usb1_host_device,
 };
 
 static struct map_desc mackerel_io_desc[] __initdata = {
@@ -327,6 +383,17 @@ static void __init mackerel_init(void)
         gpio_request(GPIO_PORT151, NULL); /* LCDDON */
         gpio_direction_output(GPIO_PORT151, 1);
 
+        /* 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();