[U-Boot] [PATCH] beagleboard: enable HUB power on all variants of the BeagleBoard

Marek Vasut marek.vasut at gmail.com
Thu Aug 25 05:22:09 CEST 2011


On Thursday, August 25, 2011 12:47:41 AM Joel A Fernandes wrote:
> From: Christian Spielberger <c.spielberger at bct-electronic.com>
> 
> Signed-off-by: Joel A Fernandes <joelagnel at ti.com>
> Cc: "Eric Bأ�nard" <eric at eukrea.com>
> Cc: "Christian Spielberger" <c.spielberger at bct-electronic.com>
> ---
> Pushing this patch myself as no one else did.
> 
> Previous discussions:
> http://article.gmane.org/gmane.comp.boot-loaders.u-boot/105663/
> http://article.gmane.org/gmane.comp.boot-loaders.u-boot/101540/
> 
>  board/ti/beagle/beagle.c |   10 +++++++++-
>  1 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
> index 13fe39b..9d65e9e 100644
> --- a/board/ti/beagle/beagle.c
> +++ b/board/ti/beagle/beagle.c
> @@ -332,7 +332,15 @@ int misc_init_r(void)
>  		setenv(expansion_config.env_var, expansion_config.env_setting);
> 
>  	twl4030_power_init();
> -	twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
> +	switch (get_board_revision()) {
> +	case REVISION_XM_C:
> +	case REVISION_C4:
> +		twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
> +		break;
> +	default:
> +		twl4030_led_init(TWL4030_LED_LEDEN_LEDBON);
> +		break;
> +	}

Am I just too sleepy or the Subject doesn't correlate with what the patch does 
...

My understanding of Subject is that it enables power on HUB ... USB HUB ? But 
the patch enables some LEDs ?

I might be wrong.

CHeers
> 
>  	/* Set GPIO states before they are made outputs */
>  	writel(GPIO23 | GPIO10 | GPIO8 | GPIO2 | GPIO1,


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