diff options
| author | NISHIMOTO Hiroki <nishimoto.hiroki@renesas.com> | 2010-02-12 08:11:18 +0000 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2010-02-15 13:43:41 +0900 |
| commit | aa18ef609b65a76e4531b09dd0c196be3e04eb94 (patch) | |
| tree | 49c5b933843a85c7ca48aad88506d319ff336033 /arch | |
| parent | 276b4f623cfd30320c004269725683ba8f262bb6 (diff) | |
| download | linux-aa18ef609b65a76e4531b09dd0c196be3e04eb94.tar.gz linux-aa18ef609b65a76e4531b09dd0c196be3e04eb94.tar.bz2 linux-aa18ef609b65a76e4531b09dd0c196be3e04eb94.zip | |
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>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-shmobile/board-g4evm.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-g4evm.c b/arch/arm/mach-shmobile/board-g4evm.c index ef4b0f59af49..5acd623f93e7 100644 --- a/arch/arm/mach-shmobile/board-g4evm.c +++ b/arch/arm/mach-shmobile/board-g4evm.c @@ -26,6 +26,7 @@ #include <linux/mtd/mtd.h> #include <linux/mtd/partitions.h> #include <linux/mtd/physmap.h> +#include <linux/usb/r8a66597.h> #include <linux/io.h> #include <linux/gpio.h> #include <mach/sh7377.h> @@ -86,9 +87,50 @@ static struct platform_device nor_flash_device = { .resource = nor_flash_resources, }; +/* USBHS */ +void usb_host_port_power(int port, int power) +{ + if (!power) /* only power-on supported for now */ + return; + + /* set VBOUT/PWEN and EXTLP0 in DVSTCTR */ + __raw_writew(__raw_readw(0xe6890008) | 0x600, 0xe6890008); +} + +static struct r8a66597_platdata usb_host_data = { + .on_chip = 1, + .port_power = usb_host_port_power, +}; + +static struct resource usb_host_resources[] = { + [0] = { + .name = "USBHS", + .start = 0xe6890000, + .end = 0xe68900e5, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = 65, + .end = 65, + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device usb_host_device = { + .name = "r8a66597_hcd", + .id = 0, + .dev = { + .platform_data = &usb_host_data, + .dma_mask = NULL, + .coherent_dma_mask = 0xffffffff, + }, + .num_resources = ARRAY_SIZE(usb_host_resources), + .resource = usb_host_resources, +}; static struct platform_device *g4evm_devices[] __initdata = { &nor_flash_device, + &usb_host_device, }; static struct map_desc g4evm_io_desc[] __initdata = { @@ -137,6 +179,23 @@ static void __init g4evm_init(void) gpio_direction_output(GPIO_PORT113, 1); gpio_export(GPIO_PORT113, 1); + /* USBHS */ + gpio_request(GPIO_FN_VBUS_0, NULL); + gpio_request(GPIO_FN_PWEN, NULL); + gpio_request(GPIO_FN_OVCN, NULL); + gpio_request(GPIO_FN_OVCN2, NULL); + gpio_request(GPIO_FN_EXTLP, NULL); + gpio_request(GPIO_FN_IDIN, NULL); + + /* enable clock in SMSTPCR3 */ + __raw_writel(__raw_readl(0xe615013c) & ~(1 << 22), 0xe615013c); + + /* setup USB phy */ + __raw_writew(0x0200, 0xe605810a); /* USBCR1 */ + __raw_writew(0x00e0, 0xe60581c0); /* CPFCH */ + __raw_writew(0x6010, 0xe60581c6); /* CGPOSR */ + __raw_writew(0x8a0a, 0xe605810c); /* USBCR2 */ + sh7377_add_standard_devices(); platform_add_devices(g4evm_devices, ARRAY_SIZE(g4evm_devices)); |