On 2015-06-01 10:51, Bhuvanchandra DV wrote:
> From: Sanchayan Maity <maitysancha...@gmail.com>
>
> 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 <maitysancha...@gmail.com>
> ---
> arch/arm/include/asm/arch-vf610/iomux-vf610.h | 1 +
> board/toradex/colibri_vf/colibri_vf.c | 25 +++++++++++++++++++++++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/arch/arm/include/asm/arch-vf610/iomux-vf610.h
> b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
> index b8b22b1..019307b 100644
> --- a/arch/arm/include/asm/arch-vf610/iomux-vf610.h
> +++ b/arch/arm/include/asm/arch-vf610/iomux-vf610.h
> @@ -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),
> diff --git a/board/toradex/colibri_vf/colibri_vf.c
> b/board/toradex/colibri_vf/colibri_vf.c
> index 7173022..8618fd0 100644
> --- a/board/toradex/colibri_vf/colibri_vf.c
> +++ b/board/toradex/colibri_vf/colibri_vf.c
> @@ -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
Acked-by: Stefan Agner <ste...@agner.ch>
--
Stefan
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