linux-toradex.git/drivers/ata/pata_cmd64x.c, branch v3.4.2

pata_cmd64x: implement sff_irq_check() method

2012-03-13T20:43:11+00:00

Implement sff_irq_check() method for both old and new chips.

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Jeff Garzik

pata_cmd64x: implement sff_irq_clear() method

2012-03-13T20:43:04+00:00

Convert the driver's two bmdma_stop() methods into sff_irq_clear() methods --
they shouldn't have been bothering with clearing interrupts from the very start;
the driver will now use the standard bmdma_stop() method implementation (where
appropriate).

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Jeff Garzik

pata_cmd64x: use interrupt status from MRDMODE register

2012-03-13T20:42:54+00:00

Start using faster version of the bmdma_stop() method for the PCI0646U and newer
chips that have the duplicate interrupt status  bits  in  the I/O mapped MRDMODE
register. Use the old, slow bmdma_stop() method on the older chips,  taking into
account that the interrupt bits are not coupled to DMA and that's enough to read
the register to clear the interrupt (on the older chips).  Determine what method
to use at the driver load time.

Fix kernel-doc of the bmdma_stop() methods, while at it.

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Jeff Garzik

pata_cmd64x: turn string of if statements into switch

2012-03-13T20:41:31+00:00

Convert string of the *if* statements all checking 'pdev->revision' into more
natural *switch* statement. While at it, somewhat clarify the comments there...

Increment the driver version, accounting for the patches that neglected to do
this in the past.

Signed-off-by: Sergei Shtylyov 
Signed-off-by: Jeff Garzik

pata_cmd64x: documentation fix

2011-10-14T17:10:46+00:00

Acked-by: Alan Cox 
Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Jeff Garzik

pata_cmd64x: add cmd64x_fixup()

2011-10-14T17:07:52+00:00

Factor out common code from cmd64x_[re]init_one() to cmd64x_fixup().

Remove stale comment and fix a minor CodingStyle issue while at it.

Signed-off-by: Bartlomiej Zolnierkiewicz 
Signed-off-by: Jeff Garzik

pata_cm64x: fix boot crash on parisc

2011-05-14T18:59:15+00:00

The old IDE cmd64x checks the status of the CNTRL register to see if
the ports are enabled before probing them.  pata_cmd64x doesn't do
this, which causes a HPMC on parisc when it tries to poke at the
secondary port because apparently the BAR isn't wired up (and a
non-responding piece of memory causes a HPMC).

Fix this by porting the CNTRL register port detection logic from IDE
cmd64x.  In addition, following converns from Alan Cox, add a check to
see if a mobility electronics bridge is the immediate parent and forgo
the check if it is (prevents problems on hotplug controllers).

Signed-off-by: James Bottomley 
Signed-off-by: Jeff Garzik

pata_cmd64x: revert commit d62f5576

2010-08-25T23:24:15+00:00

Commit d62f5576 (pata_cmd64x: fix handling of address setup timings)
incorrectly called ata_timing_compute() on UDMA mode on 0 @UT leading
to devide by zero fault.  Revert it until better fix is available.
This is reported in bko#16607 by Milan Kocian who also root caused it.

  https://bugzilla.kernel.org/show_bug.cgi?id=16607

Signed-off-by: Tejun Heo 
Reported-and-root-caused-by: Milan Kocian 
Cc: Bartlomiej Zolnierkiewicz 
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik

libata-sff: separate out BMDMA init

2010-05-25T23:40:30+00:00

Separate out ata_pci_bmdma_prepare_host() and ata_pci_bmdma_init_one()
from their SFF counterparts.  SFF ones no longer try to initialize
BMDMA or set PCI master.

Signed-off-by: Tejun Heo 
Signed-off-by: Jeff Garzik

libata: Pass host flags into the pci helper

2010-03-01T19:58:46+00:00

This allows parallel scan and the like to be set without having to stop
using the existing full helper functions. This patch merely adds the argument
and fixes up the callers. It doesn't undo the special cases already in the
tree or add any new parallel callers.

Signed-off-by: Alan Cox 
Signed-off-by: Jeff Garzik