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colibri_imx7: implement board level USB PHY mode 

Implement board level USB PHY mode callback. On USB OTG Port 1
the Colibri standard foresees GPIO USBC_DET to decide whether the
port should run in Host or Device mode.

Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
This commit is contained in:
Stefan Agner 2017-03-09 17:17:52 -08:00 committed by Stefano Babic
parent 9af131e355
commit 5a986dfeef
1 changed files with 28 additions and 0 deletions
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28
board/toradex/colibri_imx7/colibri_imx7.c
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@ -23,6 +23,7 @@
#include <netdev.h>
#include <power/pmic.h>
#include <power/rn5t567_pmic.h>
#include <usb.h>
#include <usb/ehci-ci.h>
#include "../common/tdx-common.h"
@ -46,6 +47,8 @@ DECLARE_GLOBAL_DATA_PTR;
#define NAND_PAD_READY0_CTRL (PAD_CTL_DSE_3P3V_49OHM | PAD_CTL_PUS_PU5KOHM)
#define USB_CDET_GPIO IMX_GPIO_NR(7, 14)
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)PHYS_SDRAM, PHYS_SDRAM_SIZE);
@ -71,6 +74,12 @@ static iomux_v3_cfg_t const usdhc1_pads[] = {
MX7D_PAD_GPIO1_IO00__GPIO1_IO0 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#ifdef CONFIG_USB_EHCI_MX7
static iomux_v3_cfg_t const usb_cdet_pads[] = {
MX7D_PAD_ENET1_CRS__GPIO7_IO14 | MUX_PAD_CTRL(NO_PAD_CTRL),
};
#endif
#ifdef CONFIG_NAND_MXS
static iomux_v3_cfg_t const gpmi_pads[] = {
MX7D_PAD_SD3_DATA0__NAND_DATA00 | MUX_PAD_CTRL(NAND_PAD_CTRL),
@ -319,6 +328,11 @@ int board_init(void)
setup_lcd();
#endif
#ifdef CONFIG_USB_EHCI_MX7
imx_iomux_v3_setup_multiple_pads(usb_cdet_pads, ARRAY_SIZE(usb_cdet_pads));
gpio_request(USB_CDET_GPIO, "usb-cdet-gpio");
#endif
return 0;
}
@ -417,4 +431,18 @@ int board_ehci_hcd_init(int port)
}
return 0;
}
int board_usb_phy_mode(int port)
{
switch (port) {
case 0:
if (gpio_get_value(USB_CDET_GPIO))
return USB_INIT_DEVICE;
else
return USB_INIT_HOST;
case 1:
default:
return USB_INIT_HOST;
}
}
#endif