diff options
Diffstat (limited to 'arch/arm/mach-omap2/board-omap3evm.c')
| -rw-r--r-- | arch/arm/mach-omap2/board-omap3evm.c | 29 |
1 files changed, 26 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c index 149d45ca89a..010454f58e7 100644 --- a/arch/arm/mach-omap2/board-omap3evm.c +++ b/arch/arm/mach-omap2/board-omap3evm.c @@ -43,6 +43,8 @@ #include "mmc-twl4030.h" #define OMAP3_EVM_TS_GPIO 175 +#define OMAP3_EVM_EHCI_VBUS 22 +#define OMAP3_EVM_EHCI_SELECT 61 #define OMAP3EVM_ETHR_START 0x2c000000 #define OMAP3EVM_ETHR_SIZE 1024 @@ -347,8 +349,9 @@ static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, .phy_reset = true, + /* PHY reset GPIO will be runtime programmed based on EVM version */ .reset_gpio_port[0] = -EINVAL, - .reset_gpio_port[1] = 135, + .reset_gpio_port[1] = -EINVAL, .reset_gpio_port[2] = -EINVAL }; @@ -368,9 +371,29 @@ static void __init omap3_evm_init(void) /* OMAP3EVM uses ISP1504 phy and so register nop transceiver */ usb_nop_xceiv_register(); #endif + if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) { + /* enable EHCI VBUS using GPIO22 */ + omap_cfg_reg(AF9_34XX_GPIO22); + gpio_request(OMAP3_EVM_EHCI_VBUS, "enable EHCI VBUS"); + gpio_direction_output(OMAP3_EVM_EHCI_VBUS, 0); + gpio_set_value(OMAP3_EVM_EHCI_VBUS, 1); + + /* Select EHCI port on main board */ + omap_cfg_reg(U3_34XX_GPIO61); + gpio_request(OMAP3_EVM_EHCI_SELECT, "select EHCI port"); + gpio_direction_output(OMAP3_EVM_EHCI_SELECT, 0); + gpio_set_value(OMAP3_EVM_EHCI_SELECT, 0); + + /* setup EHCI phy reset config */ + omap_cfg_reg(AH14_34XX_GPIO21); + ehci_pdata.reset_gpio_port[1] = 21; + + } else { + /* setup EHCI phy reset on MDC */ + omap_cfg_reg(AF4_34XX_GPIO135_OUT); + ehci_pdata.reset_gpio_port[1] = 135; + } usb_musb_init(); - /* Setup EHCI phy reset padconfig */ - omap_cfg_reg(AF4_34XX_GPIO135_OUT); usb_ehci_init(&ehci_pdata); ads7846_dev_init(); } |