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authorFinn Thain <fthain@telegraphics.com.au>2018-05-25 17:34:36 +1000
committerGeert Uytterhoeven <geert@linux-m68k.org>2018-07-23 15:07:12 +0200
commitcf85d89562f39cc7ae73de54639f1915a9195b7a (patch)
tree80da05c8af890fee15fb8d89775088e5d3a82964 /arch/m68k/mac
parentd72e90f33aa4709ebecc5005562f52335e106a60 (diff)
downloadlinux-cf85d89562f39cc7ae73de54639f1915a9195b7a.tar.bz2
m68k/mac: Enable PDMA for PowerBook 500 series
I can confirm that mac_scsi PDMA now works on these machines. This increases sequential read throughput by a factor of 4.5. Signed-off-by: Finn Thain <fthain@telegraphics.com.au> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'arch/m68k/mac')
-rw-r--r--arch/m68k/mac/config.c19
1 files changed, 1 insertions, 18 deletions
diff --git a/arch/m68k/mac/config.c b/arch/m68k/mac/config.c
index e522307db47c..d468a9d467a0 100644
--- a/arch/m68k/mac/config.c
+++ b/arch/m68k/mac/config.c
@@ -709,7 +709,7 @@ static struct mac_model mac_data_table[] = {
.name = "PowerBook 520",
.adb_type = MAC_ADB_PB2,
.via_type = MAC_VIA_QUADRA,
- .scsi_type = MAC_SCSI_LATE,
+ .scsi_type = MAC_SCSI_OLD,
.scc_type = MAC_SCC_QUADRA,
.ether_type = MAC_ETHER_SONIC,
.floppy_type = MAC_FLOPPY_SWIM_ADDR2,
@@ -943,18 +943,6 @@ static const struct resource mac_scsi_old_rsrc[] __initconst = {
},
};
-static const struct resource mac_scsi_late_rsrc[] __initconst = {
- {
- .flags = IORESOURCE_IRQ,
- .start = IRQ_MAC_SCSI,
- .end = IRQ_MAC_SCSI,
- }, {
- .flags = IORESOURCE_MEM,
- .start = 0x50010000,
- .end = 0x50011FFF,
- },
-};
-
static const struct resource mac_scsi_ccl_rsrc[] __initconst = {
{
.flags = IORESOURCE_IRQ,
@@ -1064,11 +1052,6 @@ int __init mac_platform_init(void)
platform_device_register_simple("mac_scsi", 0,
mac_scsi_old_rsrc, ARRAY_SIZE(mac_scsi_old_rsrc));
break;
- case MAC_SCSI_LATE:
- /* 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;
case MAC_SCSI_LC:
/* Addresses from Mac LC data in Designing Cards & Drivers 3ed.
* Also from the Developer Notes for Classic II, LC III,