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| author | Peng Fan <Peng.Fan@freescale.com> | 2014-12-02 09:55:27 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-12-19 15:32:13 +0100 |
| commit | 5a3d63c5cdd839d938a535555d9d57448d212ad9 (patch) | |
| tree | 7b88126480c59a3fd7eb94075165dfffa81ce601 /board | |
| parent | eb412d79e476e871374ed1b8e561287746609018 (diff) | |
| download | u-boot-imx-5a3d63c5cdd839d938a535555d9d57448d212ad9.zip u-boot-imx-5a3d63c5cdd839d938a535555d9d57448d212ad9.tar.gz u-boot-imx-5a3d63c5cdd839d938a535555d9d57448d212ad9.tar.bz2 | |
imx:mx6sabresd add board level support for usb
Add pinmux settings, implement board_ehci_hcd_init and board_ehci_power
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/freescale/mx6sabresd/mx6sabresd.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/board/freescale/mx6sabresd/mx6sabresd.c b/board/freescale/mx6sabresd/mx6sabresd.c index ac3757f..2f7198d 100644 --- a/board/freescale/mx6sabresd/mx6sabresd.c +++ b/board/freescale/mx6sabresd/mx6sabresd.c @@ -29,6 +29,7 @@ #include <power/pfuze100_pmic.h> #include "../common/pfuze.h" #include <asm/arch/mx6-ddr.h> +#include <usb.h> DECLARE_GLOBAL_DATA_PTR; @@ -537,6 +538,69 @@ int board_eth_init(bd_t *bis) return cpu_eth_init(bis); } +#ifdef CONFIG_USB_EHCI_MX6 +#define USB_OTHERREGS_OFFSET 0x800 +#define UCTRL_PWR_POL (1 << 9) + +static iomux_v3_cfg_t const usb_otg_pads[] = { + MX6_PAD_EIM_D22__USB_OTG_PWR | MUX_PAD_CTRL(NO_PAD_CTRL), + MX6_PAD_ENET_RX_ER__USB_OTG_ID | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static iomux_v3_cfg_t const usb_hc1_pads[] = { + MX6_PAD_ENET_TXD1__GPIO1_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL), +}; + +static void setup_usb(void) +{ + imx_iomux_v3_setup_multiple_pads(usb_otg_pads, + ARRAY_SIZE(usb_otg_pads)); + + /* + * set daisy chain for otg_pin_id on 6q. + * for 6dl, this bit is reserved + */ + imx_iomux_set_gpr_register(1, 13, 1, 0); + + imx_iomux_v3_setup_multiple_pads(usb_hc1_pads, + ARRAY_SIZE(usb_hc1_pads)); +} + +int board_ehci_hcd_init(int port) +{ + u32 *usbnc_usb_ctrl; + + if (port > 1) + return -EINVAL; + + usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + + port * 4); + + setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); + + return 0; +} + +int board_ehci_power(int port, int on) +{ + switch (port) { + case 0: + break; + case 1: + if (on) + gpio_direction_output(IMX_GPIO_NR(1, 29), 1); + else + gpio_direction_output(IMX_GPIO_NR(1, 29), 0); + break; + default: + printf("MXC USB port %d not yet supported\n", port); + return -EINVAL; + } + + return 0; +} +#endif + int board_early_init_f(void) { setup_iomux_uart(); @@ -557,6 +621,10 @@ int board_init(void) #endif setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); +#ifdef CONFIG_USB_EHCI_MX6 + setup_usb(); +#endif + return 0; } |