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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
..
Kconfig pata_ns87415: Initial cut at 87415/87560 IDE support 2007-10-12 14:55:43 -04:00
Makefile libata-pmp: implement Port Multiplier support 2007-10-12 14:55:44 -04:00
ahci.c ahci: Add MCP79 support to AHCI driver 2007-10-12 14:55:45 -04:00
ata_generic.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
ata_piix.c [libata] ata_piix: add HP compaq laptop to short cable list 2007-10-12 14:55:43 -04:00
libata-acpi.c libata: Integrate ACPI-based PATA/SATA hotplug - version 5 2007-10-12 14:55:45 -04:00
libata-core.c libata: correct handling of SRST reset sequences 2007-10-12 14:55:45 -04:00
libata-eh.c libata: add human-readable error value decoding 2007-10-12 14:55:45 -04:00
libata-pmp.c libata-pmp: implement qc_defer for command switching PMP support 2007-10-12 14:55:44 -04:00
libata-scsi.c libata-pmp-prep: implement sata_async_notification() 2007-10-12 14:55:42 -04:00
libata-sff.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
libata.h libata-pmp: extend ACPI support to cover PMP 2007-10-12 14:55:44 -04:00
pata_ali.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_amd.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_artop.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_at32.c AVR32 PATA driver 2007-10-12 14:55:37 -04:00
pata_atiixp.c pata_atiixp: Audit notes on locking 2007-10-12 14:55:42 -04:00
pata_bf54x.c libata driver for bf548 on chip ATAPI controller. 2007-10-12 14:55:37 -04:00
pata_cmd64x.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
pata_cmd640.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cs5520.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_cs5530.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cs5535.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_cypress.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_efar.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt3x2n.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt3x3.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_hpt37x.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_hpt366.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_icside.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_isapnp.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_it821x.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_it8213.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_ixp4xx_cf.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_jmicron.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
pata_legacy.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_marvell.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_mpc52xx.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_mpiix.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_netcell.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_ns87410.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_ns87415.c pata_ns87415: Initial cut at 87415/87560 IDE support 2007-10-12 14:55:43 -04:00
pata_oldpiix.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_opti.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_optidma.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_pcmcia.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_pdc202xx_old.c pata_pdc202xx_old MWDMA fixes, and notes 2007-10-12 14:55:42 -04:00
pata_pdc2027x.c pdc2027x: Switch properly to ioread/iowrite 2007-10-12 14:55:38 -04:00
pata_platform.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_qdi.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pata_radisys.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_rz1000.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sc1200.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_scc.c libata: Fix build failure on ppc64 drivers/ata/pata_scc.c 2007-10-12 14:55:42 -04:00
pata_serverworks.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sil680.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sis.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_sl82c105.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_triflex.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_via.c libata: Switch most of the remaining SFF drivers to ata_sff_port_start 2007-10-12 14:55:36 -04:00
pata_winbond.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
pdc_adma.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_inic162x.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_mv.c libata: update ata_dev_try_classify() arguments 2007-10-12 14:55:39 -04:00
sata_nv.c libata-pmp-prep: implement ops->qc_defer() 2007-10-12 14:55:41 -04:00
sata_promise.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_promise.h Move libata to drivers/ata. 2006-08-10 07:31:37 -04:00
sata_qstor.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sil.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sil24.c sata_sil24: implement PORT_RST 2007-10-12 14:55:44 -04:00
sata_sis.c [libata] Remove ->port_disable() hook 2007-10-12 14:55:35 -04:00
sata_svw.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_sx4.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_uli.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sata_via.c sata_via: kill SATA_PATA_SHARING register handling 2007-10-12 14:55:42 -04:00
sata_vsc.c libata: implement and use ata_port_desc() to report port configuration 2007-10-12 14:55:37 -04:00
sis.h libata: PATA-mode fixes for sis_sata 2007-07-02 10:17:42 -04:00