[flashrom] [PATCH] Avoid transaction errors on ICH SPI
Stefan Reinauer
stefan.reinauer at coresystems.de
Fri May 28 17:43:09 CEST 2010
On 5/28/10 5:04 PM, Carl-Daniel Hailfinger wrote:
> On 28.05.2010 16:32, Carl-Daniel Hailfinger wrote:
>
>> ICH SPI can enforces address restrictions for all accesses which take an
>> address (well, it could if the chipset implementation was not broken).
>> Since exploiting the broken implementation is harder than conforming to
>> the address restrictions wherever possible, conform to the address
>> restrictions instead.
>> This patch will eliminate a lot of transaction errors people were seeing
>> (for probe, anyway).
>>
>>
> New patch.
> Added feature:
> Explicitly check for invalid addresses in the ichspi driver and abort
> early with SPI_INVALID_ADDRESS.
>
> Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
>
Acked-by: Stefan Reinauer <stepan at coresystems.de>
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