diff options
| author | Igor Grinberg <grinberg@compulab.co.il> | 2010-09-21 16:03:11 +0000 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-09-27 15:15:04 -0700 |
| commit | 525d75b31bc97354870b5991d57b2607d7b88602 (patch) | |
| tree | 334d74f3271764abdfcc68b5c67905cde1ab27a0 /arch/arm | |
| parent | 46893a56aad011764003703b06303515ea670c57 (diff) | |
omap3: cm-t3517: add support for usb host
add support for hsusb host ports 1, 2 and on-module usb hub.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap2/board-cm-t3517.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-cm-t3517.c b/arch/arm/mach-omap2/board-cm-t3517.c index 2b41c6de274..2c7082d6d77 100644 --- a/arch/arm/mach-omap2/board-cm-t3517.c +++ b/arch/arm/mach-omap2/board-cm-t3517.c @@ -25,6 +25,7 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> +#include <linux/delay.h> #include <linux/gpio.h> #include <linux/leds.h> #include <linux/rtc-v3020.h> @@ -36,6 +37,7 @@ #include <plat/board.h> #include <plat/common.h> #include <plat/control.h> +#include <plat/usb.h> #include "mux.h" @@ -100,6 +102,47 @@ static void __init cm_t3517_init_rtc(void) static inline void cm_t3517_init_rtc(void) {} #endif +#if defined(CONFIG_USB_EHCI_HCD) || defined(CONFIG_USB_EHCI_HCD_MODULE) +#define HSUSB1_RESET_GPIO (146) +#define HSUSB2_RESET_GPIO (147) +#define USB_HUB_RESET_GPIO (152) + +static struct ehci_hcd_omap_platform_data cm_t3517_ehci_pdata __initdata = { + .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY, + .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, + + .phy_reset = true, + .reset_gpio_port[0] = HSUSB1_RESET_GPIO, + .reset_gpio_port[1] = HSUSB2_RESET_GPIO, + .reset_gpio_port[2] = -EINVAL, +}; + +static int cm_t3517_init_usbh(void) +{ + int err; + + err = gpio_request(USB_HUB_RESET_GPIO, "usb hub rst"); + if (err) { + pr_err("CM-T3517: usb hub rst gpio request failed: %d\n", err); + } else { + gpio_direction_output(USB_HUB_RESET_GPIO, 0); + udelay(10); + gpio_set_value(USB_HUB_RESET_GPIO, 1); + msleep(1); + } + + usb_ehci_init(&cm_t3517_ehci_pdata); + + return 0; +} +#else +static inline int cm_t3517_init_usbh(void) +{ + return 0; +} +#endif + static struct omap_board_config_kernel cm_t3517_config[] __initdata = { }; @@ -121,6 +164,12 @@ static struct omap_board_mux board_mux[] __initdata = { OMAP3_MUX(MCBSP4_DX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP_CLKS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), OMAP3_MUX(UART3_CTS_RCTX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), + /* HSUSB1 RESET */ + OMAP3_MUX(UART2_TX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + /* HSUSB2 RESET */ + OMAP3_MUX(UART2_RX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), + /* CM-T3517 USB HUB nRESET */ + OMAP3_MUX(MCBSP4_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT), { .reg_offset = OMAP_MUX_TERMINATOR }, }; @@ -131,6 +180,7 @@ static void __init cm_t3517_init(void) omap_serial_init(); cm_t3517_init_leds(); cm_t3517_init_rtc(); + cm_t3517_init_usbh(); } MACHINE_START(CM_T3517, "Compulab CM-T3517") |