Re: [fedora-arm] A10s-OlinuXino-MICRO with Rawhide
Thanks!
Craig
On Sat, 2015-02-07 at 09:33 +0100, Hans de Goede wrote:
Hi,
On 02/07/2015 12:32 AM, Craig Lanning wrote:
> Does Rawhide have any code to deal with the LDC panel for Olimex boards
> (Allwinner A10s CPU)?
>
> I thought I saw somewhere that it has some early support for the LCD
> panel.
>
> I downloaded the Xfce rawhide image (in hopes that it would use the
> LCD), wrote it to an SD card, installed the uboot image, and booted it.
>
> It started running through its boot messages on the console. Asked me
> the Setup questions. Finally it continued to a login prompt on the
> console. I logged in and can use the console. I looked through the
> output from "dmesg" but didn't see anything about the LCD.
>
> I have a 7 inch LCD (800x480) and an HDMI port that I could hook to an
> HD monitor (1920x1080). I am glad that even though I used a "graphical"
> image, when it didn't find a display device, it used the console.
>
> Was I mistaken about it doing anything with the LCD panel, or is there
> some additional configuration that I need to do for it to work?
>
> If it doesn't support the LCD, does it support the HDMI port?
Rawhide as of today supports the hdmi port with 1024x768, once
rawhide gets u-boot v2015.04-rc1 it will also support EDID and use
your monitors native resolution.
The LCD will work, but you need to build your own u-boot:
dnf install gcc-arm-linux-gnu
git clone https://github.com/jwrdegoede/u-boot-sunxi.git
cd u-boot-sunxi
git checkout -B sunxi-wip origin/sunxi-wip
Then edit configs/A10s-OLinuXino-M_defconfig and configs/A13-OLinuXino_defconfig
in the latter you will find a number of CONFIG_VIDEO_LCD_... lines in there,
copy those over to the configs/A10s-OLinuXino-M_defconfig file.
Then replace CONFIG_VIDEO_LCD_POWER="AXP0-0" with
CONFIG_VIDEO_LCD_POWER="PB9"
And then do the following to build / install:
make -j4 CROSS_COMPILE=arm-linux-gnu- A10s-OLinuXino-M_defconfig
make -j4 CROSS_COMPILE=arm-linux-gnu-
sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/mmcblk0 bs=1024 seek=8
You will also need an updated dtb, I've attached it for you, simply
drop the .dtb file into the dtb-3.... dir on the boot partition.
After this u-boot should light up the lcd showin the u-boot tux
on gray waterdrop background and some boot messages, and the kernel
should take over the lcd framebuffer.
Regards,
Hans