[poky] [PATCH] linux-2.6-windriver: omap3: beaglexm: fix EHCI power up GPIO dir

[Koen Kooi]

Op 21 jan 2011, om 20:45 heeft Darren Hart het volgende geschreven:

> The following patch from Koen's angstrom-linux repository fixes initialization
> of the Beagleboard xM's on-board USB hub and makes it possible to use the
> on-board network port.

FWIW, that patch will be in 2.6.38rc1 :)


> 
> Please merge contrib/dvhart/beagleboard-standard with beagleboard-standard.
> 
> Pull URL: git://git.pokylinux.org/linux-2.6-windriver-contrib.git
>  Branch: dvhart/beagleboard-standard
>  Browse: http://git.pokylinux.org/cgit.cgi/linux-2.6-windriver-contrib/log/?h=dvhart/beagleboard-standard
> 
> Thanks,
>    Darren Hart <dvhart at linux.intel.com>
> 
> 
> From 23a104853de8cdb351b7747af799463215dc4d8c Mon Sep 17 00:00:00 2001
> From: Koen Kooi <koen at beagleboard.org>
> Date: Tue, 11 Jan 2011 17:13:35 +0000
> Subject: [PATCH] omap3: beaglexm: fix EHCI power up GPIO dir
> 
> commit a5624323866c06156ca548b8515d9347fdd5188e angstrom-linux
> 
> EHCI enable power pin is inverted (active high) in comparison
> to vanilla beagle which is active low. Handle this case conditionally.
> 
> Without this fix, Beagle XM 4 port EHCI will not function and no
> networking will be available
> 
> [nm at ti.com: split up, added descriptive changelogs]
> Signed-off-by: Nishanth Menon <nm at ti.com>
> Signed-off-by: Koen Kooi <koen at beagleboard.org>
> Signed-off-by: Tony Lindgren <tony at atomide.com>
> ---
> arch/arm/mach-omap2/board-omap3beagle.c |   10 ++++++++--
> 1 files changed, 8 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
> index 5bcf6ee..80c203c 100644
> --- a/arch/arm/mach-omap2/board-omap3beagle.c
> +++ b/arch/arm/mach-omap2/board-omap3beagle.c
> @@ -250,9 +250,15 @@ static int beagle_twl_gpio_setup(struct device *dev,
> 	gpio_request(gpio + 1, "EHCI_nOC");
> 	gpio_direction_input(gpio + 1);
> 
> -	/* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
> +	/*
> +	 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
> +	 * high / others active low)
> +	 */
> 	gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
> -	gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
> +	if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
> +		gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
> +	else
> +		gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
> 
> 	/* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
> 	gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
> -- 
> 1.7.1
> -- 
> Darren Hart
> Intel Open Source Technology Center
> Yocto Project - Linux Kernel
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