David Anders <x0132446@xxxxxx> writes:
> The OMAP4 PandaBoard has EHCI port1 hooked up to an external
> SMSC3320 transciever. GPIO 1 is used to power on the transceiver
> and GPIO 62 for reset on the transceiver.
>
> Signed-off-by: David Anders <x0132446@xxxxxx>
> Signed-off-by: Anand Gadiyar <gadiyar@xxxxxx>
This one fails to apply to current l-o master.
Kevin
> ---
> arch/arm/mach-omap2/board-omap4panda.c | 54 ++++++++++++++++++++++++++++++++
> 1 files changed, 54 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
> index 94e819c..6163a59 100644
> --- a/arch/arm/mach-omap2/board-omap4panda.c
> +++ b/arch/arm/mach-omap2/board-omap4panda.c
> @@ -39,6 +39,8 @@
> #include <plat/mmc.h>
> #include "hsmmc.h"
>
> +#define GPIO_HUB_POWER 1
> +#define GPIO_HUB_NRESET 62
>
> static void __init omap4_panda_init_irq(void)
> {
> @@ -280,6 +282,57 @@ static int __init omap4_panda_i2c_init(void)
> omap_register_i2c_bus(4, 400, NULL, 0);
> return 0;
> }
> +
> +static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
> + .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
> + .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
> + .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
> + .phy_reset = false,
> + .reset_gpio_port[0] = -EINVAL,
> + .reset_gpio_port[1] = -EINVAL,
> + .reset_gpio_port[2] = -EINVAL
> +};
> +
> +static void __init omap4_ehci_init(void)
> +{
> + int ret;
> +
> +
> + /* disable the power to the usb hub prior to init */
> + ret = gpio_request(GPIO_HUB_POWER, "hub_power");
> + if (ret) {
> + pr_err("Cannot request GPIO %d\n", GPIO_HUB_POWER);
> + goto error1;
> + }
> + gpio_export(GPIO_HUB_POWER, 0);
> + gpio_direction_output(GPIO_HUB_POWER, 0);
> + gpio_set_value(GPIO_HUB_POWER, 0);
> +
> + /* reset phy+hub */
> + ret = gpio_request(GPIO_HUB_NRESET, "hub_nreset");
> + if (ret) {
> + pr_err("Cannot request GPIO %d\n", GPIO_HUB_NRESET);
> + goto error2;
> + }
> + gpio_export(GPIO_HUB_NRESET, 0);
> + gpio_direction_output(GPIO_HUB_NRESET, 0);
> + gpio_set_value(GPIO_HUB_NRESET, 0);
> + gpio_set_value(GPIO_HUB_NRESET, 1);
> +
> + usb_ehci_init(&ehci_pdata);
> +
> + /* enable power to hub */
> + gpio_set_value(GPIO_HUB_POWER, 1);
> + return;
> +
> +error2:
> + gpio_free(GPIO_HUB_POWER);
> +error1:
> + pr_err("Unable to initialize EHCI power/reset\n");
> + return;
> +
> +}
> +
> static void __init omap4_panda_init(void)
> {
> omap4_panda_i2c_init();
> @@ -287,6 +340,7 @@ static void __init omap4_panda_init(void)
> omap4_twl6030_hsmmc_init(mmc);
> /* OMAP4 Panda uses internal transceiver so register nop transceiver */
> usb_nop_xceiv_register();
> + omap4_ehci_init();
> /* FIXME: allow multi-omap to boot until musb is updated for omap4 */
> if (!cpu_is_omap44xx())
> usb_musb_init(&musb_board_data);
--
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