Am Freitag 20 März 2009 11:51:11 schrieb Detlev Zundel: > Hi Eduard, > > > Am Mittwoch 18 März 2009 00:05:00 schrieb Benjamin Herrenschmidt: > >> On Tue, 2009-03-17 at 16:30 +0100, Eduard Fuchs wrote: > >> > Hi all, > >> > > >> > since several days I'm trying to run an ATI 9250 (PCI) graphic card > >> > under Linux Kernel 2.6.27.19. Nevertheless without success. The kernel > >> > shows the following message: > >> > > >> > videoboot: Booting PCI video card bus 0, function 0, device 7 > >> > biosEmu: undefined interrupt 15h called! > >> > biosEmu/bios.int42: unknown function AH=0x0, AL=0x7, BL=0x0 > >> > >> The above comes from some patches you added to the kernel ? You should > >> probably do the softboot in the firmware instead... > > > > Yes. I'm using the videoboot-2.6x.patch (this patch contain also the > > xf86emu from www.scitechsoft.com). With this pach the radeon card work > > properly with 2.6.12 kernel version. On the 2.6.27 kernel the "videoboot" > > fetch the bios from the video card and start them in the xf86emu. > > > > Can I initialize the video card in uboot too? > > Yes, indeed you can. In a recent version of U-Boot, search for > 'CONFIG_BIOSEMU' in include/configs/*. We tested this on a sequoia > board, so include/configs/sequoia.h should be a good start for this.
Thanks. I tried to include BIOSEMU and RADEON_FB in my u-boot. Bios emulator seems to be properly loaded, but when u-boot attempt to read or write Radeon's registers, the board freezes. What means exactly the value of "VIDEO_IO_OFFSET" in the config file? There is a u-boot's output when I init the VIDEO_IO_OFFSET with PCI's I/O base address: INFO : PCI0_IO : base - 0xd8000000 size - 1M bytes INFO : PCI0_MEM0: base - 0x80000000 size - 1024M bytes INFO : PCI0_MEM1: base - 0xc0000000 size - 128M bytes INFO : PCI0_MEM2: base - 0xc8000000 size - 128M bytes INFO : PCI0_MEM3: base - 0xd0000000 size - 128M bytes ..... PCI Scan: Found Bus 0, Device 7, Function 0 PCI Scan: Found Bus 0, Device 7, Function 1 PCI Scan: Found Bus 0, Device 9, Function 0 PCI Scan: Found Bus 0, Device 10, Function 0 Video: ATI Radeon video card (1002, 5960) found @(0:7:0) videoboot: Booting PCI video card bus 0, function 0, device 7 E 0000 0 F00P0F000NI00PMS0EG 0F00 and after that follows board reset. Best regards. Eduard Fuchs _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
