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1117c811a6
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Arnd Hannemann 1117c811a6 pata_atiixp: override cable detection on MSI E350DM-E33 
The mainboard MSI E350DM-E33 is advertised with 6 SATA ports.
As it turns out, two of them seem to be driven by on-board
SATA<->PATA converters. If a disk drive is connected to one
of them kernel uses UDMA/33 mode due to cable detection:

[   34.550823] scsi4 : pata_atiixp
[   34.555517] scsi5 : pata_atiixp
[   34.555942] ata5: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[   34.555948] ata6: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
...
[   35.040799] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[   35.040806] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[   35.040817] ata5.00: limited to UDMA/33 due to 40-wire cable
[   35.049166] ata5.00: configured for UDMA/33
[   35.049402] scsi 4:0:0:0: Direct-Access     ATA      WDC WD20EADS-00R 01.0 PQ: 0 ANSI: 5

This patch forces "short cable" mode on this board, as it seems clear that
the on-board SATA<->PATA "cable" is short.
With this patch the disk is configured for UDMA/100:

[    5.976756] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[    5.996434] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[    6.024787] ata5.00: configured for UDMA/100

Testing revealed no transfer issues.

Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2012-08-17 13:26:51 -04:00
..
accessibility
acpi Power management fixes for 3.6-rc2 2012-08-12 21:34:09 +03:00
amba Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-07-27 15:14:26 -07:00
ata pata_atiixp: override cable detection on MSI E350DM-E33 2012-08-17 13:26:51 -04:00
atm drivers/atm/iphase.c: fix error return code 2012-08-06 13:29:57 -07:00
auxdisplay
base PM: Make dev_pm_get_subsys_data() always return 0 on success 2012-08-08 20:49:33 +02:00
bcma bcma: BCM43228 support 2012-08-02 13:51:46 -04:00
block drbd: nuke pdflush from comments 2012-08-04 12:15:39 +04:00
bluetooth
cdrom
char Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux 2012-08-14 07:52:41 +03:00
clk clk: validate pointer in __clk_disable() 2012-07-30 17:25:13 -07:00
clocksource arm-soc: new SoC support 2012-07-23 16:31:31 -07:00
connector
cpufreq drivers/cpufreq/pcc-cpufreq.c: fix error return code 2012-08-08 20:49:25 +02:00
cpuidle Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-07-26 14:28:55 -07:00
crypto This patch series contains a major revamp of how we collect entropy 2012-07-31 19:07:42 -07:00
dca
devfreq
dio
dma dma: tegra: enable/disable dma clock 2012-08-13 10:15:22 +05:30
edac Merge branch 'devel' 2012-07-29 21:11:05 -03:00
eisa
extcon MFD bits for the 3.6 merge window. 2012-07-30 12:41:17 -07:00
firewire - Small fixes and optimizations. 2012-07-30 09:32:39 -07:00
firmware This patch series contains a major revamp of how we collect entropy 2012-07-31 19:07:42 -07:00
gpio GPIO: gpio-pxa: fix building without CONFIG_OF 2012-08-14 07:50:36 +03:00
gpu Merge branch 'drm-nouveau-fixes' of git://git.freedesktop.org/git/nouveau/linux-2.6 into drm-fixes 2012-08-15 20:31:22 +10:00
hid Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-07-31 18:47:44 -07:00
hsi
hv This patch series contains a major revamp of how we collect entropy 2012-07-31 19:07:42 -07:00
hwmon Merge branch 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging 2012-07-30 10:10:26 -07:00
hwspinlock
i2c This patch series contains a major revamp of how we collect entropy 2012-07-31 19:07:42 -07:00
ide
idle Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux 2012-07-26 14:28:55 -07:00
ieee802154
iio
infiniband Merge branches 'cma', 'ipoib', 'ocrdma' and 'qib' into for-next 2012-07-30 07:47:27 -07:00
input Input: eeti_ts: pass gpio value instead of IRQ 2012-08-09 15:16:41 +02:00
iommu iommu/amd: Fix ACS path checking 2012-08-06 18:10:04 +02:00
isdn mISDN: Bugfix for layer2 fixed TEI mode 2012-08-06 13:22:50 -07:00
leds leds: renesas: fix error handling 2012-08-13 14:34:02 +08:00
lguest
macintosh
md Additional md update for 3.6 2012-08-02 11:34:40 -07:00
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-07-31 18:47:44 -07:00
memory
memstick
message drivers/message/i2o/i2o_config.c: bound allocation 2012-07-30 17:25:17 -07:00
mfd Merge branch 'testing/new-warnings' into fixes 2012-08-10 12:28:57 +02:00
misc Merge branch 'akpm' (Andrew's patch-bomb) 2012-07-30 17:25:34 -07:00
mmc Merge branch 'dmaengine' of git://git.linaro.org/people/rmk/linux-arm 2012-08-01 16:41:07 -07:00
mtd arm-soc: bug fixes for v3.6-rc2 2012-08-12 21:31:44 +03:00
net bnx2x: Fix compiler warnings 2012-08-12 13:42:18 -07:00
nfc
nubus
of Devicetree updates for 3.6 2012-07-24 14:07:22 -07:00
oprofile
parisc PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
parport
pci PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
pcmcia Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 2012-07-27 15:14:26 -07:00
pinctrl drivers/pinctrl/pinctrl-nomadik.c: drop devm_kfree of devm_kzalloc'd data 2012-08-07 14:34:12 +02:00
platform platform / x86 / PM: Fix unused function warnings for CONFIG_PM_SLEEP 2012-08-10 14:29:43 +02:00
pnp
power Merge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc 2012-08-02 11:52:39 -07:00
pps pps: return PTR_ERR on error in device_create 2012-07-30 17:25:21 -07:00
ps3
ptp
pwm pwm: pwm-tiehrpwm: PWM driver support for EHRPWM 2012-07-26 07:45:20 +02:00
rapidio
regulator regulator: Fix an s5m8767 build failure 2012-07-31 00:51:09 +02:00
remoteproc A batch of remoteproc patches for 3.6: 2012-07-26 16:19:08 -07:00
rpmsg A batch of remoteproc patches for 3.6: 2012-07-26 16:19:08 -07:00
rtc RTC: Avoid races between RTC alarm wakeup and suspend. 2012-08-08 20:49:16 +02:00
s390 s390/sclp_sdias: Add missing break and "fall through" 2012-08-08 07:32:55 -07:00
sbus
scsi Merge branch 'for-3.6/core' of git://git.kernel.dk/linux-block 2012-08-01 09:02:41 -07:00
sfi
sh sh: intc: Handle domain association for sparseirq pre-allocated vectors. 2012-08-09 13:21:05 +09:00
sn
spi spi/s3c64xx: improve error handling 2012-08-10 12:27:47 +02:00
ssb
staging Merge branch 'for-linus-3.6' of git://dev.laptop.org/users/dilinger/linux-olpc 2012-08-02 11:52:39 -07:00
target Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-08-01 10:26:23 -07:00
tc
thermal The tag contains just a few battery-related changes for v3.6. It's is 2012-07-31 18:08:25 -07:00
tty serial: sh-sci: fix compilation breakage, when DMA is enabled 2012-08-01 13:48:54 +09:00
uio
usb arm-soc: bug fixes for v3.6-rc2 2012-08-12 21:31:44 +03:00
uwb
vfio vfio: Add PCI device driver 2012-07-31 08:16:24 -06:00
vhost tcm_vhost: Initial merge for vhost level target fabric driver 2012-07-29 13:49:10 -07:00
video fbdev updates for 3.6 2012-08-01 10:45:12 -07:00
virt
virtio
vlynq
vme
w1 Driver core merge for 3.6-rc1 2012-07-26 11:25:33 -07:00
watchdog ARM: arm-soc Marvell Orion device-tree updates 2012-08-02 11:50:24 -07:00
xen PCI changes for the 3.6 merge window: 2012-07-24 16:17:07 -07:00
zorro
Kconfig vfio: VFIO core 2012-07-31 08:16:22 -06:00
Makefile vfio: VFIO core 2012-07-31 08:16:22 -06:00