[U-Boot] [PATCH v3 4/4] pico-imx7d: Add USB Host support

[Otavio Salvador]

From: Fabio Estevam <festevam at gmail.com>

USB OTG2 port is connected to the USB host connector.

Add support for it.

Signed-off-by: Fabio Estevam <festevam at gmail.com>
Signed-off-by: Otavio Salvador <otavio at ossystems.com.br>
---

Changes in v3:
- new patch

Changes in v2: None

 board/technexion/pico-imx7d/pico-imx7d.c | 29 +++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c
index 0767d0462f..53e14693a5 100644
--- a/board/technexion/pico-imx7d/pico-imx7d.c
+++ b/board/technexion/pico-imx7d/pico-imx7d.c
@@ -282,7 +282,34 @@ int checkboard(void)
 	return 0;
 }
 
+static iomux_v3_cfg_t const usb_otg2_pads[] = {
+	MX7D_PAD_UART3_CTS_B__USB_OTG2_PWR | MUX_PAD_CTRL(NO_PAD_CTRL),
+};
+
+int board_ehci_hcd_init(int port)
+{
+	switch (port) {
+	case 0:
+		break;
+	case 1:
+		imx_iomux_v3_setup_multiple_pads(usb_otg2_pads,
+						 ARRAY_SIZE(usb_otg2_pads));
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
 int board_usb_phy_mode(int port)
 {
-	return USB_INIT_DEVICE;
+	switch (port) {
+	case 0:
+		return USB_INIT_DEVICE;
+	case 1:
+		return USB_INIT_HOST;
+	default:
+		return -EINVAL;
+	}
+	return 0;
 }
-- 
2.19.0