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colibri_vf: Enable board specific USB initialisation for USB pen gpio

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Add IOMUX for the pad used as USB pen. This needs to be driven low for
the Iris and Viola boards where it is pulled up high by default. This is
required for the USB host functionality to work on these boards. Use the
board specific weak initialisation function, to drive the pin low which
would be called on "usb start".

Signed-off-by: Sanchayan Maity <maitysanchayan@gmail.com>
This commit is contained in:
Sanchayan Maity 2015-06-01 18:37:25 +05:30 committed by Stefano Babic
parent 60ed286453
commit 09cfa8ee6a
2 changed files with 26 additions and 0 deletions
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1
arch/arm/include/asm/arch-vf610/iomux-vf610.h
View file

@ -131,6 +131,7 @@ enum {
VF610_PAD_PTD1__QSPI0_A_CS0 = IOMUX_PAD(0x0140, 0x0140, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),
VF610_PAD_PTD2__QSPI0_A_DATA3 = IOMUX_PAD(0x0144, 0x0144, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),
VF610_PAD_PTD3__QSPI0_A_DATA2 = IOMUX_PAD(0x0148, 0x0148, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),
VF610_PAD_PTD4__GPIO_83 = IOMUX_PAD(0x014C, 0x014C, 0, __NA_, 0, VF610_GPIO_PAD_CTRL),
VF610_PAD_PTD4__QSPI0_A_DATA1 = IOMUX_PAD(0x014c, 0x014c, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),
VF610_PAD_PTD5__QSPI0_A_DATA0 = IOMUX_PAD(0x0150, 0x0150, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),
VF610_PAD_PTD7__QSPI0_B_QSCK = IOMUX_PAD(0x0158, 0x0158, 1, __NA_, 0, VF610_QSPI_PAD_CTRL),

25
board/toradex/colibri_vf/colibri_vf.c
View file

@ -20,6 +20,7 @@
#include <netdev.h>
#include <i2c.h>
#include <g_dnl.h>
#include <asm/gpio.h>
DECLARE_GLOBAL_DATA_PTR;
@ -32,6 +33,12 @@ DECLARE_GLOBAL_DATA_PTR;
#define ENET_PAD_CTRL (PAD_CTL_PUS_47K_UP | PAD_CTL_SPEED_HIGH | \
PAD_CTL_DSE_50ohm | PAD_CTL_OBE_IBE_ENABLE)
#define USB_PEN_GPIO 83
static const iomux_v3_cfg_t usb_pads[] = {
VF610_PAD_PTD4__GPIO_83,
};
int dram_init(void)
{
static const struct ddr3_jedec_timings timings = {
@ -464,3 +471,21 @@ int g_dnl_bind_fixup(struct usb_device_descriptor *dev, const char *name)
return 0;
}
#ifdef CONFIG_USB_EHCI_VF
int board_ehci_hcd_init(int port)
{
imx_iomux_v3_setup_multiple_pads(usb_pads, ARRAY_SIZE(usb_pads));
switch (port) {
case 0:
/* USBC does not have PEN, also configured as USB client only */
break;
case 1:
gpio_request(USB_PEN_GPIO, "usb-pen-gpio");
gpio_direction_output(USB_PEN_GPIO, 0);
break;
}
return 0;
}
#endif