Daniel J Blueman wrote:
> The ICH8 south-bridge I have is the mobile variant and does come
> equipped with native parallel IDE - see page 447:
> http://download.intel.com/design/chipsets/datashts/31305603.pdf . I do
> see 35MB/s with DMA enabled from my CF on the 1 in 15 times the
> libata-kernel does work.
>
> I can dump off and decode the configuration registers for the timing
> and bus master registers in the working and non-working libata cases,
> and the legacy ATA working case and see what's different.
Does the attached patch change anything?
--
tejun
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index ad07086..47a344b 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -436,7 +436,7 @@ static const struct piix_map_db ich8_map_db = {
/* PM PS SM SS MAP */
{ P0, P2, P1, P3 }, /* 00b (hardwired when in AHCI) */
{ RV, RV, RV, RV },
- { IDE, IDE, NA, NA }, /* 10b (IDE mode) */
+ { P0, P2, IDE, IDE }, /* 10b (IDE mode) */
{ RV, RV, RV, RV },
},
};
