diff options
| author | Peng Fan <Peng.Fan@freescale.com> | 2014-12-02 09:55:28 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2014-12-19 15:32:13 +0100 |
| commit | fb00bda705cd983bc261fba66ca4b7f5f056fdeb (patch) | |
| tree | 75df0a886b859d786edae3ff69176c7aa7ab5ef0 /board/freescale | |
| parent | 5a3d63c5cdd839d938a535555d9d57448d212ad9 (diff) | |
imx:mx6qarm2 add board level support for usb
Add pinmux settings and implement board_ehci_hcd_init
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Diffstat (limited to 'board/freescale')
| -rw-r--r-- | board/freescale/mx6qarm2/mx6qarm2.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/board/freescale/mx6qarm2/mx6qarm2.c b/board/freescale/mx6qarm2/mx6qarm2.c index 3a5b26dde7..98ccdb785b 100644 --- a/board/freescale/mx6qarm2/mx6qarm2.c +++ b/board/freescale/mx6qarm2/mx6qarm2.c @@ -16,6 +16,7 @@ #include <fsl_esdhc.h> #include <miiphy.h> #include <netdev.h> +#include <usb.h> DECLARE_GLOBAL_DATA_PTR; @@ -213,6 +214,43 @@ int board_eth_init(bd_t *bis) return 0; } +#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_GPIO_1__USB_OTG_ID | 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, 1); +} + +int board_ehci_hcd_init(int port) +{ + u32 *usbnc_usb_ctrl; + + if (port > 0) + return -EINVAL; + + usbnc_usb_ctrl = (u32 *)(USB_BASE_ADDR + USB_OTHERREGS_OFFSET + + port * 4); + + setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL); + + return 0; +} +#endif + int board_early_init_f(void) { setup_iomux_uart(); @@ -226,6 +264,10 @@ int board_init(void) /* address of boot parameters */ gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; +#ifdef CONFIG_USB_EHCI_MX6 + setup_usb(); +#endif + return 0; } |