Re: [loongson-dev] Fuloong liberated

[Roman Mamedov]

On Mon, 16 May 2011 11:12:42 +0200
Vladimir 'φ-coder/phcoder' Serbinenko <address@hidden> wrote:

> Hello all. As you all probably know the Floong as shipped by lemote uses
> a 64K binary blob to initialize the video which makes it non-free.
> Fortunately now there is an alternative: GRUB2.

Hello,

So you are replacing PMON with GRUB2, but are you sure the video BIOS is also
removed by this operation? And then, is it GRUB2 that initializes the video
chip instead of SiS BIOS, setting up VRAM timings, the video output, screen
mode, etc? Does it actually have special code for bringing up the SiS 315E?

> To generate firmware
> image do:
> bzr branch http://bzr.savannah.gnu.org/r/grub/trunk/grub
> cd grub
> ./configure --target=mipsel --with-platform=loongson
> make
> ./grub-mkimage -C xz -O mipsel-fuloong-flash -o grub.img -d grub-core/
> normal linux ata usb_keyboard ohci part_msdos ext2 xfs part_gpt ls halt
> reboot usbms gzio

Can you perhaps post a compiled firmware somewhere.

> The resulting grub.img can be flashed using flashrom
> http://flashrom.org/Flashrom. Be sure to have backup chip before
> flashing.

Also I believe it should be possible to chain-load this image from PMON for
testing, via the "load <filename>" command, and then "g".

-- 
With respect,
Roman

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