Hi Hans, On 22 December 2014 at 09:45, Hans de Goede <hdego...@redhat.com> wrote: > Hi, > > On 21-12-14 19:52, Simon Glass wrote: >> >> Hi, >> >> I ran up a banana PI and noticed that HDMI works in U-Boot. Great! >> >> Scrolling seems very slow though - is the L2 cache disabled perhaps? > > > I don't think so, but it could be, I think the scrolling code is just > very inefficient. Feel free to poke things a bit around this, ARM > cache management is not my forte.
I think it need ssomething like the code in exynos/soc.c - see v7_outer_cache_enable(). Even with the 7 inch it's very slow. > >> Also are there instructions for getting an LCD running in U-Boot? I >> have an Olimex A20-OLinuxion-MICRO (what a mouthful!) with a 7 inch >> display if that matters. I can't find any useful information so far. > > > He he, your in luck I've been working on LCD support the last few days, > and I just got the olimex 7" lcd running on olimex boards :) > > If you use my current wip tree: > > https://github.com/jwrdegoede/u-boot-sunxi/tree/sunxi-wip > > And build for the A20-OLinuXino_MICRO-lcd7_defconfig things should > just work, assuming you are using the standard olimex 7" lcd with > a standard 40 pins pata cable. > > Note in order for the kernel to take over the fb you need a small > kernel patch on top of 3.19, I've attached the patch. That's great, yes it works! Looking at the patches, rather than adding new board configs and CONFIGs I think it should be device-tree-controlled. Maybe an environment variable could hold the display type? Regards, Simon _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
