ARM: mach-shmobile: G4EVM USBHS support
Add G4EVM platform data and a magic setup sequence to initialize the r8a66597 block aka USBHS in sh7377. Signed-off-by: NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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@ -26,6 +26,7 @@
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/mtd/physmap.h>
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#include <linux/usb/r8a66597.h>
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#include <linux/io.h>
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#include <linux/gpio.h>
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#include <mach/sh7377.h>
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@ -86,9 +87,50 @@ static struct platform_device nor_flash_device = {
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.resource = nor_flash_resources,
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};
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/* USBHS */
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void usb_host_port_power(int port, int power)
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{
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if (!power) /* only power-on supported for now */
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return;
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/* set VBOUT/PWEN and EXTLP0 in DVSTCTR */
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__raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008);
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}
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static struct r8a66597_platdata usb_host_data = {
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.on_chip = 1,
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.port_power = usb_host_port_power,
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};
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static struct resource usb_host_resources[] = {
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[0] = {
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.name = "USBHS",
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.start = 0xe6890000,
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.end = 0xe68900e5,
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.flags = IORESOURCE_MEM,
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},
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[1] = {
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.start = 65,
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.end = 65,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device usb_host_device = {
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.name = "r8a66597_hcd",
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.id = 0,
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.dev = {
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.platform_data = &usb_host_data,
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.dma_mask = NULL,
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.coherent_dma_mask = 0xffffffff,
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},
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.num_resources = ARRAY_SIZE(usb_host_resources),
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.resource = usb_host_resources,
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};
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static struct platform_device *g4evm_devices[] __initdata = {
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&nor_flash_device,
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&usb_host_device,
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};
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static struct map_desc g4evm_io_desc[] __initdata = {
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@ -137,6 +179,23 @@ static void __init g4evm_init(void)
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gpio_direction_output(GPIO_PORT113, 1);
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gpio_export(GPIO_PORT113, 1);
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/* USBHS */
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gpio_request(GPIO_FN_VBUS_0, NULL);
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gpio_request(GPIO_FN_PWEN, NULL);
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gpio_request(GPIO_FN_OVCN, NULL);
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gpio_request(GPIO_FN_OVCN2, NULL);
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gpio_request(GPIO_FN_EXTLP, NULL);
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gpio_request(GPIO_FN_IDIN, NULL);
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/* enable clock in SMSTPCR3 */
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__raw_writel(__raw_readl(0xe615013c) & ~(1 << 22), 0xe615013c);
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/* setup USB phy */
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__raw_writew(0x0200, 0xe605810a); /* USBCR1 */
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__raw_writew(0x00e0, 0xe60581c0); /* CPFCH */
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__raw_writew(0x6010, 0xe60581c6); /* CGPOSR */
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__raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */
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sh7377_add_standard_devices();
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platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices));
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