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Alan Cox 681c80b5d9 libata: correct handling of SRST reset sequences 
Correct handling of SRST reset sequences.  After an SRST it is undefined
whether the drive has gone back to PIO0.  In order to talk safely we should
talk slowly and carefully until we know.

Thus when we do the reset if the controller has a pio setup method we call it
to flip back to PIO 0 and a known state.  After the reset completes the
identify will then be done at the safe speed and the drive/controller will
pick suitable faster modes and reconfigure the controller to these timings.

As a side effect it means we force the controller to PIO 0 as we bring it up
which fixes funnies on a few systems where the BIOS firmware leaves us in an
interesting choice of modes, or embedded boxes with no firmware which come up
in random states.

For smart controllers there is nothing to do - they know about this
internally.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
 		2007-10-12 14:55:45 -04:00
..
acorn/char Remove the arm26 port 2007-07-31 15:39:39 -07:00
acpi Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2007-10-11 19:20:44 -07:00
amba
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ata libata: correct handling of SRST reset sequences 2007-10-12 14:55:45 -04:00
atm [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
auxdisplay cfag12864b fix 2007-08-22 19:52:46 -07:00
base Driver core: fix SYSF_DEPRECATED breakage for nested classdevs 2007-10-07 16:42:22 -07:00
block Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
bluetooth [Bluetooth] Add missing stat.byte_rx counter modification 2007-09-09 08:39:27 +02:00
cdrom [POWERPC] iSeries: Move detection of virtual cdroms 2007-10-11 20:40:47 +10:00
char Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
clocksource
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connector [NET]: make netlink user -> kernel interface synchronious 2007-10-10 21:15:29 -07:00
cpufreq
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crypto [CRYPTO] sha: Add header file for SHA definitions 2007-10-10 16:55:50 -07:00
dio
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dma [IOAT]: ioatdma needs to to play nice in a multi-dma-client world 2007-08-26 18:35:40 -07:00
edac drivers/edac: fix e752x correct return code 2007-09-11 17:21:19 -07:00
eisa
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fc4
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firewire firewire: point to migration document 2007-10-07 13:48:41 +02:00
firmware drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
hid Add some help texts to recently-introduced kconfig items 2007-08-18 09:52:50 -07:00
hwmon drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
i2c i2c-algo-bit: Read block data bugfix 2007-09-09 22:29:14 +02:00
ide Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6 2007-10-11 19:20:44 -07:00
ieee1394 [NET]: Move hardware header operations out of netdevice. 2007-10-10 16:52:52 -07:00
infiniband Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2007-10-11 19:43:13 -07:00
input drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
isdn [ISDN]: Change I4L to use alloc_netdev(). 2007-10-10 16:54:57 -07:00
kvm KVM: Fix virtualization menu help text 2007-09-22 12:55:18 -07:00
leds leds: Update Cobalt Qube series front LED support 2007-10-11 22:24:00 +01:00
lguest fix modules oopsing in lguest guests 2007-09-25 08:51:04 -07:00
macintosh [POWERPC] adbhid: Enable KEY_FN key reporting 2007-09-22 14:49:21 +10:00
mca
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md Drop 'size' argument from bio_endio and bi_end_io 2007-10-10 09:25:57 +02:00
media Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
message [NET]: Nuke SET_MODULE_OWNER macro. 2007-10-10 16:51:13 -07:00
mfd
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misc Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
mmc mmc: don't use weight32() 2007-10-11 19:09:08 +02:00
mtd [POWERPC] Cleanups for physmap_of.c (v2) 2007-09-20 07:37:16 -05:00
net [TG3]: Fix APE induced regression 2007-10-11 22:17:20 -07:00
nubus
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of
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oprofile
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parisc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
parport parport_pc locking fix 2007-07-31 15:39:37 -07:00
pci i386: move pci 2007-10-11 11:16:36 +02:00
pcmcia pcmcia: give socket time to power down 2007-07-31 15:39:38 -07:00
pnp drivers/firmware: const-ify DMI API and internals 2007-10-09 20:22:20 -04:00
power [PATCH] missing null termination in power supply uevent 2007-09-21 01:22:23 +04:00
ps3
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rapidio
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rtc rtc: rtc-ds1553.c should use resource_size_t for base address 2007-09-19 11:24:17 -07:00
s390 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
sbus Videopix Frame Grabber: Fix unreleased lock in vfc_debug() 2007-07-31 15:39:43 -07:00
scsi [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
sh
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sn
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spi spi_mpc83xx: hang fix 2007-09-11 17:21:19 -07:00
ssb [SSB]: Sparse fixes. 2007-10-10 16:52:21 -07:00
tc
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telephony
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uio
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usb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2007-10-11 19:40:14 -07:00
video Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-10-11 21:55:47 -07:00
w1 missing null termination in one wire uevent 2007-09-25 08:51:04 -07:00
xen
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zorro zorro: Make sysfs config attribute read-only 2007-08-22 19:52:45 -07:00
Kconfig [SSB]: add Sonics Silicon Backplane bus support 2007-10-10 16:51:36 -07:00
Makefile [SSB]: add Sonics Silicon Backplane bus support 2007-10-10 16:51:36 -07:00