I would like to say the first public mainboard porting has already successfully been done. The whole work also including fintek f71863fg superio supporting. I would like to see the linux login shell shows on the screen. The vgabios is still working under the coreboot and payload process. But it always caused blank or flashing some nonsense character. I really did not know why. the VGA is extracted from the AMI bios. the strange things in that original vbios has an different device id with (1002,9611). it is (1002,9610). As is known, 0x960 is the 780 vbios (HD3200), but Jetway PA78VM5 has an 780v(HD3100)vbios. I changed the vbios’s device id to make coreboot can load it correctly. it worked, but seems did not work very fine.
the other ongoing progress is digging the coreboot fam10 problems. the latest coreboot can not run very well with most of 780 family mainboard which including mahogany. So i should dig into the code to check out the which revision caused it.
In the next week, i will begin my next mainboard porting which is got from L84Supper. Thanks to him for sending me the board. After i know that shinner coreboot code can not be released, i should trying much more public mainboard porting.
i am glad to say that the Jetway PA78VM5 mainboard can run coreboot sucessfully. The configuration of Jetway PA78VM5 can be found at PA78VM5.the coreboot+filo can work fine. The kernel began booting, but the only problem is after kernel shows”jumping to **” the serial port stoped showing anything. And i have already set the kernel parameter with “console=ttyS0,115200”
First of all thank olsen provide me this mainboard.
The mainboard have an SPI flash W25X80A, my SF100+testchip SO08 can detect the flash type, but can not erase the flash correctly. After contacted with dediprog engineer. i remove the flash from the board, it seems fine, the programming is fine, but i can not use it with the mainboard unless i can bear removing the flash chip every time i need to rebuild the coreboot. After that, i replace that flash chip with an sst 080b. it worked pretty fine.
another problem is while the coreboot booting, it stoped while corebooting trying to extract the cbfs files. i debugged this for a long time, finally thanks to patrick, i take his advice remove the $(CBFS_COMPRESS_FLAG).it worked.
the latest problem is that amd famlily10 may have much problem with the current build version.
i should find out what difference between btdc and coreboot public version caused problems.
my next step may focus on this things merge the code, and find out why the kernel did not show the booting message.
i am so glad that coreboot can finally booting the Jetway PA78VM5
firstly, thanks to Scott Olsen for supporting the mainboard. PA78VM5 is 780/700/ddr2.
The superio which it used is fintek f71863fg. I have already make all of the code done. but at last i found that i do not have the serial port convert which make me can connect to it.
The following week may be used to 1)extract the vbios. 2)make the linux booting…
i am pretty looking forward that.
It is my second year to join GSOC. In this year, i will take in charge of AMD RS780+SB700 mass porting. I would like to write down each progress here between this summer.
Today, the dediprog ISP-Testclip-SO8 has arrived. although it’s pretty expensive, but it seems pretty cute. I have already tested in in BTDC lab, hope it can helps me much more.