Hi All, On Tue, Dec 2, 2014 at 2:00 AM, Simon Glass <s...@chromium.org> wrote: > Hi Sjoerd, > > On 1 December 2014 at 13:25, Sjoerd Simons > <sjoerd.sim...@collabora.co.uk> wrote: >> On Mon, 2014-12-01 at 13:09 -0700, Simon Glass wrote: >>> +Akshay >>> >>> Hi Sjoerd, >>> >>> On 1 December 2014 at 03:03, Sjoerd Simons >>> <sjoerd.sim...@collabora.co.uk> wrote: >>> > Hey Simon, >>> > >>> > On Sun, 2014-11-30 at 11:56 -0700, Simon Glass wrote: >>> >> On 27 November 2014 at 08:08, Sjoerd Simons >>> >> <sjoerd.sim...@collabora.co.uk> wrote: >>> >> > Unlike the Peach-Pit board, there is no parade edp to lvds bridge on >>> >> > the >>> >> > Pi. So drop it from device-tree >>> >> > >>> >> > Signed-off-by: Sjoerd Simons <sjoerd.sim...@collabora.co.uk> >>> >> > --- >>> >> > Changes since v1: Only modify the DTB >>> >> > >>> >> > arch/arm/dts/exynos5800-peach-pi.dts | 5 ----- >>> >> > 1 file changed, 5 deletions(-) >>> >> >>> >> Acked-by: Simon Glass <s...@chromium.org> >>> >> >>> >> Tested on snow, pit, pi (display does not yet work on Pi). >>> > >>> > Just to be clear, in your testing does the display not work on Pi? It >>> > seems to be ok here (with u-boot starting chainloaded from one of the >>> > KERN partitions) >>> >>> That's right, not in U-Boot. I think this is because some GPIOs need >>> to be enabled to turn on the backlight etc. Maybe you have an EC which >>> turns these on automatically? >>> >>> If current mainline is supposed to make the display work on Pi then I >>> need to do some debugging. Please let me know. >> >> It does work on my machine, so i was wondering if it's a setup >> difference. I'm using the chained u-boot method (iotw the standard >> chromeos u-boot in flash starts main-line u-boot from mmc/SD), which >> might well mean that the GPIOs you're referring to are still turned on >> by the first u-boot (which it has to do to show me the unverified boot >> warning screen)? > > Yes that's right. Maybe Akshay / Ajay have ideas, or otherwise I can > add this. I think it is two GPIOs, but it might be TPSCHROME also. Now, I have added support for peach_pi display in u-boot. Kindly check the patches.
Ajay _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
