From ca103e09960cb09a0501e558bfa9c921fb61d0bc Mon Sep 17 00:00:00 2001 From: Vanessa Maegima Date: Mon, 13 Jun 2016 13:01:38 -0300 Subject: [PATCH] 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 Reviewed-by: Fabio Estevam --- 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 fc746ec965..b0b8f054c1 100644 --- a/board/technexion/pico-imx6ul/pico-imx6ul.c +++ b/board/technexion/pico-imx6ul/pico-imx6ul.c @@ -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) diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h index f8fe2306ae..f9fc263d99 100644 --- a/include/configs/pico-imx6ul.h +++ b/include/configs/pico-imx6ul.h @@ -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 -- 2.39.5