RPI graphic text console test invitation

[Joel Sherrill]

On July 11, 2015 10:34:08 AM CDT, QIAO YANG <yangqiao0505 at me.com> wrote:
>I've finally found out that if we don't use u-boot to load the image,
>and just use the bare metal to load the kernel binary, it works well.
>Anyway I can't tell the reason .

The boot monitor is doing some initialization you need to override. You are depending on something being in the default state after a reset. 

So you are missing a piece of initialization. Review Uboot in the area you are having problems in and see if you spot a register being touched that you missed.

>On Jul 07, 2015, at 07:55 PM, QIAO YANG <yangqiao0505 at me.com> wrote:
>
>
>Hi all mentors and rpi bap student developers ,
>
>
>First of all, I’ve written a blog to explicite how I to use the mailbox
>interfaces, and I would like to invite other students to try it out. If
>anyone need the mailbox related functions that I didn’t implement, you
>can ask me for them. 
>
>
>https://yangqiao.wordpress.com/2015/07/05/rtems-board-support-packages-raspberry-pi-mailbox-and-framebuffer-implementation/
>
> 
>
>
>As Pavel Pisa reported to me that he didn’t managed to get the video
>console to display, I would like to invite you to try it out and report
>the status to me. The setup of memory table might need to update, I’ve
>explained in the last paragraph of the blog. It’s just a quick test and
>the feedback will help me a lot. Thanks everyone in advance :).
>
>Here is a blog about how to setup the graphic console, where is the
>code source and which version to test:
>
>https://yangqiao.wordpress.com/2015/07/05/rtems-bsp-raspberry-pi-graphic-text-console-with-frame-buffer/
>
>
>I've got the graphic output work with my rpi B and samsung 27" display.
>But I've found something wired that in serial console mode, my serial
>console stoped early:
>
> 
>The word Corporation isn't event displayed completely.
>
>While in graphic console mode, the output stopped at :
> 
>
>It bothers me and I'm trying to figure out the bug. But for the moment
>I've got no idea and how to debug it. 
>But anyway the display should work and display something.
>
>Since I can’t test it with different display by my self. I would be
>glad if you can join me to test the driver and send me feedback, so
>that I can improve it .
>
>Thank you in advance!
>
>
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--joel