Hi Geert,
On 23/08/23 21:10, Geert Uytterhoeven wrote:
On Wed, Aug 23, 2023 at 11:10 AM Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
On Wed, Aug 23, 2023 at 12:14 AM Michael Schmitz <schmitzmic@xxxxxxxxx> wrote:
Some users of pata_falcon on Q40 have IDE disks in default
IDE little endian byte order, whereas legacy disks use
host-native big-endian byte order as on the Atari Falcon.
Add module parameter 'data_swab' to allow connecting drives
with non-native data byte order. Drives selected by the
data_swap bit mask will have their user data byte-swapped to
host byte order, i.e. 'pata_falcon.data_swab=2' will byte-swap
all user data on drive B, leaving data on drive A in native
byte order. On Q40, drives on a second IDE interface may be
added to the bit mask as bits 2 and 3.
Default setting is no byte swapping, i.e. compatibility with
the native Falcon or Q40 operating system disk format.
Cc: William R Sowerbutts <will@xxxxxxxxxxxxxx>
Cc: Finn Thain <fthain@xxxxxxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Tested-by: William R Sowerbutts <will@xxxxxxxxxxxxxx>
Signed-off-by: Michael Schmitz <schmitzmic@xxxxxxxxx>
---
Changes since v2:
Geert Uytterhoeven:
- only shift swap bitmask if pdev->id > 0
Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Oops, I meant
Reviewed-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
But it never hurts to have more review tags ;-)
Thanks - I can pretty much type that one blind ...
Cheers,
Michael
Gr{oetje,eeting}s,
Geert
