Messages in this thread |  | | Subject | Promise IDE on Alpha | From | (Måns Rullgård) | Date | 06 May 2002 16:31:15 +0200 |
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Hello,
I have a Promise PDC20268 IDE controller in a PWS433au Alpha machine.
With kernel 2.4.18 it works, but only at UDMA3 which must be forced with hdparm. UDMA4/5 can be set with hdparm, but at any disk access there are some errors and the mode is dropped to UDMA3.
I tried 2.4.19-pre8 in the hope that it would work better. It does correctly detect the drive as UDMA capable but only UDMA2. The higher modes can't be set with hdparm. I found out that this was because a udma_four flag in some struct wasn't set. I changed pdc2026xx.c and set this flag and could set UDMA3. The better modes were still broken.
Is this Alpha specific or a generic driver problem?
dmesg output with original 2.4.19-pre8: Linux version 2.4.19-pre8 (mru@zaphod) (gcc version 3.0.4) #1 Sun May 5 11:44:45 CEST 2002 Booting on Miata using machine vector Miata from SRM [snip] Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CMD646: IDE controller on PCI bus 00 dev 20 CMD646: detected chipset, but driver not compiled in! CMD646: chipset revision 1 CMD646: not 100% native mode: will probe irqs later ide0: BM-DMA at 0x8080-0x8087, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0x8088-0x808f, BIOS settings: hdc:pio, hdd:pio PDC20268: IDE controller on PCI bus 00 dev 60 PDC20268: chipset revision 2 PDC20268: not 100% native mode: will probe irqs later PDC20268: ROM enabled at 0x09074000 ide2: BM-DMA at 0x8090-0x8097, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0x8098-0x809f, BIOS settings: hdg:pio, hdh:pio hde: ST340810A, ATA DISK drive hdg: SAMSUNG COMBO SM-304B, ATAPI CD/DVD-ROM drive ide2 at 0x80a0-0x80a7,0x80b2 on irq 32 ide3 at 0x80a8-0x80af,0x80b6 on irq 32 hde: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63, UDMA(33) Partition check: /dev/ide/host2/bus0/target0/lun0: unknown partition table [snip] ide2: Speed warnings UDMA 3/4/5 is not functional. << Caused by hdparm
dmesg output with my changes: Linux version 2.4.19-pre8 (mru@zaphod) (gcc version 3.0.4) #2 Sun May 5 17:54:12 CEST 2002 Booting on Miata using machine vector Miata from SRM [snip] pci: passed tb register update test pci: passed sg loopback i/o read test pci: passed pte write cache snoop test pci: failed valid tag invalid pte reload test (mcheck; workaround available) pci: passed pci machine check test pci: tbia workaround enabled pci: pyxis 8K boundary dma bug - sg dma disabled [snip] Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx CMD646: IDE controller on PCI bus 00 dev 20 CMD646: detected chipset, but driver not compiled in! CMD646: chipset revision 1 CMD646: not 100% native mode: will probe irqs later ide0: BM-DMA at 0x8080-0x8087, BIOS settings: hda:pio, hdb:pio ide1: BM-DMA at 0x8088-0x808f, BIOS settings: hdc:pio, hdd:pio PDC20268: IDE controller on PCI bus 00 dev 60 PDC20268: chipset revision 2 PDC20268: not 100% native mode: will probe irqs later PDC20268: ROM enabled at 0x09074000 ide2: BM-DMA at 0x8090-0x8097, BIOS settings: hde:pio, hdf:pio ide3: BM-DMA at 0x8098-0x809f, BIOS settings: hdg:pio, hdh:pio hde: ST340810A, ATA DISK drive hdg: SAMSUNG COMBO SM-304B, ATAPI CD/DVD-ROM drive ide2 at 0x80a0-0x80a7,0x80b2 on irq 32 ide3 at 0x80a8-0x80af,0x80b6 on irq 32 hde: 78165360 sectors (40021 MB) w/2048KiB Cache, CHS=77545/16/63, UDMA(100) Partition check: /dev/ide/host2/bus0/target0/lun0:hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } PDC202XX: Primary channel reset. ide2: reset: success hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } hde: dma_intr: status=0x51 { DriveReady SeekComplete Error } hde: dma_intr: error=0x84 { DriveStatusError BadCRC } PDC202XX: Primary channel reset. ide2: reset: success unknown partition table
-- Måns Rullgård mru@users.sf.net - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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