Hi Marc, On 03/06/15 at 06:26 PM Marc Jones <marcj...@gmail.com> wrote: > Hi Varad, > > Welcome! It is great to hear that you are interested in coreboot GSoC. > > On Thu, Mar 5, 2015 at 8:44 AM Varad Gautam <varadgau...@gmail.com> wrote: > > Hi, > > > > I would like to participate in Google Summer of Code 2015 with coreboot to > > work on one of the following ideas: > > > > - Enable coreboot + Tianocore over an ARM board: The Ideas page mentions > > something similar [1], but I think the hardware details are to be > > finalized. I > > worked on adding BeagleBone Black support to Tianocore during GSoC-2014 > > with > > Linaro, and so have some experience with JTAG, ARM bringup and > > bootloaders. > > Which mainboard would be the intended target? I have a HiKey board > > (HiSilicon > > Kirin 6220 Cortex-A53 ARM64) [2] which could be used - I'm checking if > > coreboot already supports a similar SoC to base the port on. > > There are a number of ARM SOCs in development that are being merged from > chromium.org (chromebook). Take a look at src/soc and src/arch. This is a > pretty big task, but might be a good match if you have done some similar > work in past projects.
I will look into it, thanks. > > > - Eliminate Video BIOS requirement for AMD/ATI graphics init: I understand > > this would involve dumping AtomBIOS ROM and performing those > > initializations > > under coreboot. I came across atomdis [3] and am looking for a Video BIOS > > ROM > > I could try disassembling. I need some input on how I could go about the > > implementation of this idea - what hardware would be suitable / what the > > boot > > flow would be. Although I haven't worked with the Linux graphics stack > > yet, I > > would like to get my hands dirty. I am currently looking through the > > resources > > at [4]. > > You might look at Gizmo2. I dumped the BIOS binary for a Radeon GPU and am trying to make sense of it using the atombios kernel header [1] - are there any resources on ATOMBIOS internals I can use? I believe the GPU initialization can be done by tracing the dump contents as suggested in this thread [2], but cannot figure how new ATOMBIOS tables would be created and used. I also need to check the coreboot source to plan how this can be implemented. > > > I recently tried running coreboot + SeaBIOS + SYSLINUX under QEMU (as > > suggested on the Easy tasks page [5]), and it seems to work alright - but > > is > > it possible to find a SYSLINUX ELF image so I can eliminate SeaBIOS? > > I don't know if anyone has made a SYSLINUX elf. Any small kernelvmlinuz and > initrd could be used. > http://www.coreboot.org/QEMU_Build_Tutorial#Building_a_Linux_kernel_payload > > > I would be glad to have your suggestions on how I could get started. > > You can join #coreboot on IR and , start looking at the patches on Gerrit > and get a feel for what is being developed. > > Again, Welcome! > Marc > Thanks! Are there any 'easy' bugs / features I could implement to get familiar with the development process? [1] http://lxr.free-electrons.com/source/drivers/gpu/drm/radeon/atombios.h [2] http://www.coreboot.org/pipermail/coreboot/2013-March/075522.html Thanks, Varad > > [1] http://www.coreboot.org/Project_Ideas#coreboot_ARM_ > > SoC.27s_mainboard_port > > [2] https://www.96boards.org/products/hikey/ > > [3] > > http://www.phoronix.com/scan.php?page=article&item=amd_ > > atombios_dumper&num=1 > > [4] http://www.coreboot.org/Project_Ideas#Native_graphics_init > > [5] http://www.coreboot.org/Easy_projects#Add.2Ftest_new_ > > supported_payloads > > > > Thanks, > > Varad > > > > -- > > coreboot mailing list: coreboot@coreboot.org > > http://www.coreboot.org/mailman/listinfo/coreboot -- coreboot mailing list: coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot