Re: [PATCH] libata:pata_atiixp: Don't use unconnected secondary port on SB600

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On Sun, Dec 31, 2017 at 09:11:05PM +0000, Darren Stevens wrote:
>     The AMD SB600 southbridge has an PATA IDE interface, but the
>     secondary port has no physical connections, so is disabled in
>     the PCI header which makes it appear as a legacy port.
>     
>     On most systems this causes no trouble, but the Amigaone X1000 has
>     an SB600 connected to a PowerPC SoC PCI-e root port, with an
>     emulated ISA bus. On this system a kernel panic occurs at boot
>     time during device attach for the secondary port.
>     
>     Mark the port as 'dummy' to prevent this. As a bonus, disabling
>     this will slightly speed up booting on PC systems using an
>     SB600 as they will now skip 2 known empty ports.
>     
>     Signed-off-by: Darren Stevens <Darren@xxxxxxxxxxxxxxxx>

Applied to libata/for-4.16.

Thanks.

-- 
tejun
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