linux-sg2042/drivers/firmware
Shane Huang 58a09b38cf [libata] ahci: Restore SB600 SATA controller 64 bit DMA
Community reported one SB600 SATA issue(BZ #9412), which led to 64 bit
DMA disablement for all SB600 revisions by driver maintainers with
commits c7a42156d9 and
4cde32fc4b.

But the root cause is ASUS M2A-VM system BIOS bug in old revisions
like 0901, while forcing into 32bit DMA happens to work as workaround.
Now it's time to withdraw 4cde32fc4b
so as to restore the SB600 SATA 64bit DMA capability.
This patch is also adding the workaround for M2A-VM old BIOS revisions,
but users are suggested to upgrade their system BIOS to the latest one
if they meet this issue.

Signed-off-by: Shane Huang <shane.huang@amd.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2009-06-10 11:05:00 -04:00
..
Kconfig sysfs: add /sys/firmware/memmap 2008-07-08 17:55:41 +02:00
Makefile sysfs: add /sys/firmware/memmap 2008-07-08 17:55:41 +02:00
dcdbas.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
dcdbas.h dcdbas: export functionality for use in other drivers 2009-01-08 08:31:12 -08:00
dell_rbu.c dell_rbu: use scnprintf() instead of less secure sprintf() 2009-01-17 14:27:18 -08:00
dmi-id.c dmi: struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-06 10:44:42 -08:00
dmi_scan.c [libata] ahci: Restore SB600 SATA controller 64 bit DMA 2009-06-10 11:05:00 -04:00
edd.c edd: fix incorrect return of 1 from module_init 2008-06-06 11:29:09 -07:00
efivars.c Kobject: convert drivers/* from kobject_unregister() to kobject_put() 2008-01-24 20:40:40 -08:00
iscsi_ibft.c ibft: fix the display of a few fields in the NIC attribute structure in sysfs 2009-05-02 15:36:10 -07:00
iscsi_ibft_find.c iscsi_ibft_find: fix modpost warning 2008-07-30 09:41:44 -07:00
memmap.c Bernhard has moved 2009-02-18 15:37:56 -08:00
pcdp.c serial: convert early_uart to earlycon for 8250 2007-07-16 09:05:35 -07:00
pcdp.h [IA64] Make PCDP work again. 2005-07-13 11:56:32 -07:00