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pico-imx7d: Add USB Host support

USB OTG2 port is connected to the USB host connector.

Add support for it.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Fabio Estevam 5 years ago
parent
commit
780e31e93f
1 changed files with 28 additions and 1 deletions
  1. 28 1
      board/technexion/pico-imx7d/pico-imx7d.c

+ 28 - 1
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;
 }