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pico-imx6ul: Add USB Host support 

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.maegima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
This commit is contained in:
Vanessa Maegima 2016-06-13 13:01:38 -03:00 committed by Stefano Babic
parent d0daec670f
commit ca103e0996
2 changed files with 24 additions and 2 deletions
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24
board/technexion/pico-imx6ul/pico-imx6ul.c
View File

@ -142,6 +142,9 @@ 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),
};
@ -181,7 +184,26 @@ 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)

2
include/configs/pico-imx6ul.h
View File

@ -52,7 +52,7 @@
#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