coreboot January 2006

coreboot@coreboot.org

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64 discussions

[LinuxBIOS] Tyan Tiger 100 S1832
by Mark Longridge 03 Jan '06

03 Jan '06

Hi folks, I've heard interesting things about linux bios so I figured I'd ask about my motherboard. I have a Tyan Tiger 100 S1832 board with two P3 550 cpus. Some specs: ·Intel 440BX AGPset. ·Intel PIIX4e controller. ·National 309 Super I/O chipset. Guess it's pretty old but I'd still like to try to put a linux bios on it. I have a pdf of the manual so if there's any other info needed please let me know. Thanks, Mark

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Re: [LinuxBIOS] [Etherboot-developers] Universal boot disk etc...
by Lu, Yinghai 03 Jan '06

03 Jan '06

Memory limitation? We can set _RAMBASE to 1M above. I wonder if Etherboot can put the code in RAM above 1M... Otherway for universal boot: Tiny kernel with all driver need ---- ramdisk or initramfs to kexec other kernel.... YH

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[LinuxBIOS] Fwd: [Linux-fbdev-devel] gx1fb: (try to) play nicer with various BIOSes
by Richard Smith 03 Jan '06

03 Jan '06

This came across the linux-fb-dev list. I know some people are using the GX1 so I'm posting it here. ---------- Forwarded message ---------- From: David Vrabel <dvrabel(a)arcom.com> Date: Jan 3, 2006 10:18 AM Subject: [Linux-fbdev-devel] gx1fb: (try to) play nicer with various BIOSes To: linux-fbdev-devel list <linux-fbdev-devel(a)lists.sourceforge.net> Hi, Seems that the CS5530A chip used in Geode GX1 systems has some crazy feature that causes SMI traps when accessing the PCI configuration space of the video device. Various GX1 BIOSes seem to use this 'feature' to hide the real BARs of the device. This patch disables these traps (in an early PCI fixup) so that Linux sees the real, physical BARs and not the virtual ones provided by the BIOS. This should allow the GX1 framebuffer driver to work on more systems that have different BIOSes as the driver no longer guesses at what the virtual BARs mean. I'm not entirely sure it the correct solution as I can neither test regular VGA console nor the X's 'cyrix' video driver so there might be some breakage there -- probably best to get some more testers before applying it. David Vrabel -- David Vrabel, Design Engineer Arcom, Clifton Road Tel: +44 (0)1223 411200 ext. 3233 Cambridge CB1 7EA, UK Web: http://www.arcom.com/ Index: linux-2.6-working/arch/i386/pci/fixup.c =================================================================== --- linux-2.6-working.orig/arch/i386/pci/fixup.c 2006-01-03 08:46:51.000000000 +0000 +++ linux-2.6-working/arch/i386/pci/fixup.c 2006-01-03 15:59:54.000000000 +0000 @@ -442,3 +442,19 @@ } DECLARE_PCI_FIXUP_ENABLE(PCI_VENDOR_ID_TI, 0x8032, pci_post_fixup_toshiba_ohci1394); + + +/* + * Prevent the BIOS trapping accesses to the Cyrix CS5530A video device + * configuration space. + */ +static void __devinit pci_early_fixup_cyrix_5530(struct pci_dev *dev) +{ + u8 r; + /* clear 'F4 Video Configuration Trap' bit */ + pci_read_config_byte(dev, 0x42, &r); + r &= 0xfd; + pci_write_config_byte(dev, 0x42, r); +} +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_CYRIX, PCI_DEVICE_ID_CYRIX_5530_LEGACY, + pci_early_fixup_cyrix_5530); Index: linux-2.6-working/drivers/video/geode/gx1fb_core.c =================================================================== --- linux-2.6-working.orig/drivers/video/geode/gx1fb_core.c 2006-01-03 08:46:54.000000000 +0000 +++ linux-2.6-working/drivers/video/geode/gx1fb_core.c 2006-01-03 16:00:43.000000000 +0000 @@ -215,11 +215,11 @@ if (ret < 0) return ret; - ret = pci_request_region(dev, 1, "gx1fb (video)"); + ret = pci_request_region(dev, 0, "gx1fb (video)"); if (ret < 0) return ret; - par->vid_regs = ioremap(pci_resource_start(dev, 1), - pci_resource_len(dev, 1)); + par->vid_regs = ioremap(pci_resource_start(dev, 0), + pci_resource_len(dev, 0)); if (!par->vid_regs) return -ENOMEM; @@ -229,12 +229,9 @@ if (!par->dc_regs) return -ENOMEM; - ret = pci_request_region(dev, 0, "gx1fb (frame buffer)"); - if (ret < 0 ) - return -EBUSY; if ((fb_len = gx1_frame_buffer_size()) < 0) return -ENOMEM; - info->fix.smem_start = pci_resource_start(dev, 0); + info->fix.smem_start = gx_base + 0x800000; info->fix.smem_len = fb_len; info->screen_base = ioremap(info->fix.smem_start, info->fix.smem_len); if (!info->screen_base) -- Richard A. Smith

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[LinuxBIOS] Is my Geode GX1 support?
by unknown user 01 Jan '06

01 Jan '06

CPU: National Semiconductor Geode GX1 266Mhz Mainboard Chipset: National Semiconductor CS5530A I dunno what chipset use in SuperIO chipset. Sorry. root@xxxx:~# lspci -vvv 0000:00:00.0 Host bridge: Cyrix Corporation PCI Master Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 0000:00:0e.0 Ethernet controller: National Semiconductor Corporation DP83815 (MacPhyter) Ethernet Controller Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B+ Status: Cap+ 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64 (63750ns min, 63750ns max) Interrupt: pin A routed to IRQ 15 Region 0: I/O ports at f800 [size=256] Region 1: Memory at fedff000 (32-bit, non-prefetchable) [size=4K] Expansion ROM at <unassigned> [disabled] [size=64K] Capabilities: [40] Power Management version 2 Flags: PMEClk- DSI+ D1+ D2+ AuxCurrent=320mA PME(D0+,D1+,D2+,D3hot+,D3cold+) Status: D0 PME-Enable- DSel=0 DScale=0 PME+ 0000:00:12.0 ISA bridge: Cyrix Corporation 5530 Legacy [Kahlua] (rev 30) Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 64, Cache Line Size: 0x04 (16 bytes) 0000:00:12.1 Bridge: Cyrix Corporation 5530 SMI [Kahlua] Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Region 0: Memory at 40012000 (32-bit, non-prefetchable) [size=256] 0000:00:12.2 IDE interface: Cyrix Corporation 5530 IDE [Kahlua] (prog-if 80 [Master]) Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Region 4: I/O ports at fc00 [size=16] 0000:00:12.3 Multimedia audio controller: Cyrix Corporation 5530 Audio [Kahlua] Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 0 Region 0: Memory at 40011000 (32-bit, non-prefetchable) [size=128] 0000:00:12.4 VGA compatible controller: Cyrix Corporation 5530 Video [Kahlua] (prog-if 00 [VGA]) Subsystem: Cyrix Corporation: Unknown device 0001 Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Region 0: Memory at 40800000 (32-bit, non-prefetchable) [size=8M] 0000:00:13.0 USB Controller: Compaq Computer Corporation ZFMicro Chipset USB (rev 06) (prog-if 10 [OHCI]) Subsystem: Compaq Computer Corporation ZFMicro Chipset USB Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV+ VGASnoop- ParErr- Stepping- SERR- FastB2B- Status: Cap- 66MHz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Interrupt: pin A routed to IRQ 11 Region 0: Memory at fedfe000 (32-bit, non-prefetchable) [size=4K] here is more infomation http://kil13r.info/hardware.html (crowled by lshw util) sorry for my poor english. - Chae Jong-bin

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coreboot January 2006