diff options
| author | Finn Thain | 2018-01-27 18:51:40 -0500 |
|---|---|---|
| committer | Geert Uytterhoeven | 2018-03-19 10:22:59 +0100 |
| commit | e5f0d2e2a153b18dcf31e1a633e210c37829d759 (patch) | |
| tree | ddc62ec6a9d18f6e1df82fa50eae84dbd550ebfb /arch/m68k | |
| parent | 0c8efd610b58cb23cefdfa12015799079aef94ae (diff) | |
m68k/mac: Enable PDMA support for PowerBook 190
Stan's tests showed that PDMA improves sequential read performance by
a factor of 5 on a PowerBook 190. Last time I tried this on a
PowerBook 520 it didn't work, so let's not enable it there until
it can be tested with the present mac_scsi driver.
Tested-by: Stan Johnson <userm57@yahoo.com>
Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k')
| -rw-r--r-- | arch/m68k/mac/config.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c index d3d435248a24..7890a8425710 100644 --- a/arch/m68k/mac/config.c +++ b/arch/m68k/mac/config.c @@ -699,7 +699,7 @@ static struct mac_model mac_data_table[] = { .name = "PowerBook 190", .adb_type = MAC_ADB_PB2, .via_type = MAC_VIA_QUADRA, - .scsi_type = MAC_SCSI_LATE, + .scsi_type = MAC_SCSI_OLD, .ide_type = MAC_IDE_BABOON, .scc_type = MAC_SCC_QUADRA, .floppy_type = MAC_FLOPPY_SWIM_ADDR2, @@ -1061,9 +1061,7 @@ int __init mac_platform_init(void) mac_scsi_old_rsrc, ARRAY_SIZE(mac_scsi_old_rsrc)); break; case MAC_SCSI_LATE: - /* PDMA logic in 68040 PowerBooks is somehow different to - * '030 models. It's probably more like Quadras (see mac_esp). - */ + /* XXX PDMA support for PowerBook 500 series needs testing */ platform_device_register_simple("mac_scsi", 0, mac_scsi_late_rsrc, ARRAY_SIZE(mac_scsi_late_rsrc)); break; |