Any successful installs on a Broadcom HT1000 chipset?

[Travis Mikalson]

Søren Schmidt wrote:
> Yep, I'm not convinced there are "generic" DMA problems with that 
> chipset, but the ATA part definitively has trouble, I'm (slowly) working 
> my way through the different results here to try pinpoint the problem 
> more precisely.
> I'm also going to try a Marvell ctlr later today, more news later...

Ah, very good, I was going to ask if you needed a Marvell PCI-X controller.

You're by far the expert compared to me in this arena, but I was having 
the exact same issue (including the memory corruption) when booting from 
the Marvell PCI-X SATA  controller... smells like a somewhat generic 
HT1000 barfing-on-DMA problem to my inexperienced nose :)

>> I also see this isn't first and only chipset to have the exact same 
>> dma max_iosize limit imposed :)
> Right, the usual need for this limit is that the 64K size means that the 
> count reg is set to zero, and some HW designers just didn't get that right.
> 
> In this case its different as it does not always fail, but I havn't 
> found the combo that makes it fail yet. However the workaround seems to 
> be quite solid, but there might be a better / more correct way to solve 
> it still.

Perhaps something could be devised involving a kernel option that works 
around the errata? Wouldn't be the first time. options 
HT1000_WORKAROUND... would suck if it involved making an ifdef for every 
ata driver :(

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