Re: UDMA with CS5530 using IBM Netvista N2200 (8363)

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> Booting with CONFIG_BLK_DEV_CS5530=n and CONFIG_PATA_CS5530=y and
> libdata_dma_mask=0
> kernel 2.6.24.7:
> ...
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> Driver 'sd' needs updating - please use bus_type methods
> scsi0: pata_cs5530
> scsi1: pata_cs5530
> ata1: PATA max UDMA/33 cmd 0x1f0 ctl 0x3f6 bmdma 0xfc00 irq 14
> ata2: PATA max UDMA/33 cmd 0x170 ctl 0x376 bmdma 0xfc08 irq 15
> ata1.00: ATA-5: SILICON POWER, 2.0, mas UDMA/66
> ata1.00: 2000880 sectors, multi 1: LBA
> ata1.00: configured for PIO4
> scsi 0:0:0:0: Direct-Access      ATA     SILICON POWER    2.0  PQ: 0 ANSI: 5
> sd 0:0:0:0: [sda] 2000880 512-byte hardware sectors (1024 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
> sd 0:0:0:0: [sda] 2000880 512-byte hardware sectors (1024 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
>  sda: sda1

And now it all works nicely

> Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,0)
> So PIO4 is now working. Great. But i am stuck with the root device.

I would suggest posting to linux-kernel on that and talking to H Peter
Anvin about possible ways to get a real boot loader on the box.
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