Hi, 1, mainstream kernel has only basic Loongson-3 support, not full-functional, something has missing. 2, Unfortunately, no VESA driver on Loongson... Huacai ------------------ Original ------------------ From: "YunQiang Su"<wzssyqa@xxxxxxxxx>; Date: Tue, Nov 4, 2014 10:36 PM To: "陈华才"<chenhc@xxxxxxxxxx>; Cc: "linux-mips"<linux-mips@xxxxxxxxxxxxxx>; "Aurelien Jarno"<aurelien@xxxxxxxxxxx>; Subject: Re: Problems of kernel of Loongson 3 On Tue, Nov 4, 2014 at 10:24 PM, 陈华才 <chenhc@xxxxxxxxxx> wrote: > Hi, > > 1, You can try 3.16 from master branch here: > http://dev.lemote.com/cgit/linux-official.git/ OK, I will try it. Even though, we still need a patch to make it can use on Lemote machiens. > > 2, Since 3.14, radeon cannot support non-firmware display. This is confirmed by drm maintainers. How can x86 machines display something when firmwares are missing? Use something like vesa when firmwares are lost? > > Huacai > > ------------------ Original ------------------ > From: "YunQiang Su"<wzssyqa@xxxxxxxxx>; > Date: Tue, Nov 4, 2014 09:40 PM > To: "陈华才"<chenhc@xxxxxxxxxx>; > Cc: "linux-mips"<linux-mips@xxxxxxxxxxxxxx>; "Aurelien Jarno"<aurelien@xxxxxxxxxxx>; > Subject: Problems of kernel of Loongson 3 > > > I have tested the kernel 3.16, and 3.17 of Debian on loongson 3. > I met 2 major problems: > > 1. On the Lemote 6100 and Yeeloong 8133, load command hangs > > PMON> load (wd0,0)/vmlinux-3.16-3-loongson-3 > Loading file: (wd0,0)/vmlinux-3.16-3-loongson-3 > (elf64) > 0x80200000/9171584 + 0x80abf280/34201152(z) > > It also hangs on the dev board from Lemote. > While it can boot on dev boards from Loongson. > > 3.15 kernel works fine on both boards. > > 2. If without radeon non-free firmware in initrd/vmlinux, > the screen can display nothing. > It makes us difficult to patch debian-install to support Loongson 3. > A automatic fallback may be needed when nonfree firmware is not available. > > -- > YunQiang Su -- YunQiang Su
