From fb00bda705cd983bc261fba66ca4b7f5f056fdeb Mon Sep 17 00:00:00 2001 From: Peng Fan Date: Tue, 2 Dec 2014 09:55:28 +0800 Subject: imx:mx6qarm2 add board level support for usb Add pinmux settings and implement board_ehci_hcd_init Signed-off-by: Peng Fan --- board/freescale/mx6qarm2/mx6qarm2.c | 42 +++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) (limited to 'board/freescale/mx6qarm2/mx6qarm2.c') 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 #include #include +#include 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; } -- cgit v1.2.1