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>

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;
 }
 

include/configs/mx6qarm2.h

@@ -189,4 +189,18 @@
 #define CONFIG_OF_LIBFDT
 #define CONFIG_CMD_BOOTZ
 
+/* USB Configs */
+#define CONFIG_CMD_USB
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_MX6
+#define CONFIG_USB_STORAGE
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_ASIX
+#define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CONFIG_MXC_USB_FLAGS		0
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	1
+#endif
+
 #endif				/* __CONFIG_H */