imx:mx6slevk add board level support for usb
Add pinmux settings, implement board_ehci_hcd_init, board_usb_phy_mode
There are two usb port on mx6slevk board:
1. otg port
2. host port
The following are the connection between usb controller and board usb
interface, host port has not ID pin set:
otg1 core <---> board otg port
otg2 core <---> board host port
In order to make host port work, board_usb_phy_mode return USB_INIT_HOST
to let host port work in host mode.
Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
Signed-off-by: Ye Li <B37916@freescale.com>
diff --git a/board/freescale/mx6slevk/mx6slevk.c b/board/freescale/mx6slevk/mx6slevk.c
index e76c343..3ae2c46 100644
--- a/board/freescale/mx6slevk/mx6slevk.c
+++ b/board/freescale/mx6slevk/mx6slevk.c
@@ -20,6 +20,8 @@
#include <fsl_esdhc.h>
#include <mmc.h>
#include <netdev.h>
+#include <usb.h>
+#include <usb/ehci-fsl.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -243,6 +245,48 @@
}
#endif
+#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[] = {
+ /* OTG1 */
+ MX6_PAD_KEY_COL4__USB_USBOTG1_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+ MX6_PAD_EPDC_PWRCOM__ANATOP_USBOTG1_ID | MUX_PAD_CTRL(NO_PAD_CTRL),
+ /* OTG2 */
+ MX6_PAD_KEY_COL5__USB_USBOTG2_PWR | 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));
+}
+
+int board_usb_phy_mode(int port)
+{
+ if (port == 1)
+ return USB_INIT_HOST;
+ else
+ return usb_phy_mode(port);
+}
+
+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);
+
+ /* Set Power polarity */
+ setbits_le32(usbnc_usb_ctrl, UCTRL_PWR_POL);
+
+ return 0;
+}
+#endif
int board_early_init_f(void)
{
@@ -261,6 +305,11 @@
#ifdef CONFIG_FEC_MXC
setup_fec();
#endif
+
+#ifdef CONFIG_USB_EHCI_MX6
+ setup_usb();
+#endif
+
return 0;
}