Troubles with VIA VX900 chipset

[Alexandre Martins]

I forget to attach patches

Le jeudi 24 octobre 2013 15:56:15 Alexandre Martins a écrit :
> Dear,
> 
> We have seen some issues with the VIA VX900 chipset. The main trouble is
> that some SATA hard drive are not seen by the kernel (BIOS and boot-loader
> are OK).
> 
> After investigations, it seems that during the initialisation of the
> controler, some reset commands are send via "ata_via_sata_reset" fonction.
> Into the chipset documentation, there is a warning about successive reset
> commands, and software must waiting the "BUSY" flag is clear, before send
> another reset. I have added a "DELAY(10000)" between the second call of
> "ata_sata_phy_reset" and the call of "ata_generic_reset" and the problem
> disapear.
> 
> I also made a more complex fix which check the "BUSY" flag.
> 
> Which fix of delai checking is the better one ?
> 
> Best Regards
-- 
Alexandre Martins
NETASQ -- We secure IT

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