Add USB host support.
Tested by connecting a USB pen drive:
=> usb start
starting USB...
USB0: Port not available.
USB1: USB EHCI 1.00
scanning bus 1 for devices... 2 USB Device(s) found
scanning usb for storage devices... 1 Storage Device(s) found
Signed-off-by: Vanessa Maegima <vanessa.maeg...@nxp.com>
---
board/technexion/pico-imx6ul/pico-imx6ul.c | 24 +++++++++++++++++++++++-
include/configs/pico-imx6ul.h | 2 +-
2 files changed, 24 insertions(+), 2 deletions(-)
diff --git a/board/technexion/pico-imx6ul/pico-imx6ul.c
b/board/technexion/pico-imx6ul/pico-imx6ul.c
index c038d43..bdf32f4 100644
--- a/board/technexion/pico-imx6ul/pico-imx6ul.c
+++ b/board/technexion/pico-imx6ul/pico-imx6ul.c
@@ -59,6 +59,9 @@ static iomux_v3_cfg_t const usdhc1_pads[] = {
MX6_PAD_NAND_CLE__USDHC1_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
};
+#define USB_OTHERREGS_OFFSET 0x800
+#define UCTRL_PWR_POL (1 << 9)
+
static iomux_v3_cfg_t const usb_otg_pad[] = {
MX6_PAD_GPIO1_IO00__ANATOP_OTG1_ID | MUX_PAD_CTRL(OTG_ID_PAD_CTRL),
};
@@ -98,7 +101,26 @@ int board_early_init_f(void)
int board_usb_phy_mode(int port)
{
- return USB_INIT_DEVICE;
+ if (port == 1)
+ return USB_INIT_HOST;
+ else
+ return USB_INIT_DEVICE;
+}
+
+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;
}
int board_init(void)
diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h
index d848ead..01edc03 100644
--- a/include/configs/pico-imx6ul.h
+++ b/include/configs/pico-imx6ul.h
@@ -42,7 +42,7 @@
#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
#define CONFIG_MXC_USB_PORTSC (PORT_PTS_UTMI | PORT_PTS_PTW)
#define CONFIG_MXC_USB_FLAGS 0
-#define CONFIG_USB_MAX_CONTROLLER_COUNT 1 /* Only OTG1 port enabled */
+#define CONFIG_USB_MAX_CONTROLLER_COUNT 2
#define CONFIG_CI_UDC
#define CONFIG_USBD_HS
--
1.9.1
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
