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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-11 16:38:33 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-11 16:38:33 -0700 |
| commit | 86373435d2299b722ec87c416005953215f049c1 (patch) | |
| tree | 40d9c8e8bdf2f48b9c69c3423cdad3c0feded67e /drivers/ata/sata_sil.c | |
| parent | 483e3cd6a34ad2d7e41100bc1b98614ac42a4567 (diff) | |
| parent | c984123c7a888731b7e971e1c878b6f2b716b292 (diff) | |
Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (25 commits)
pata_rz1000: use printk_once
ahci: kill @force_restart and refine CLO for ahci_kick_engine()
pata_cs5535: add pci id for AMD based CS5535 controllers
ahci: Add AMD SB900 SATA/IDE controller device IDs
drivers/ata: use resource_size
sata_fsl: Defer non-ncq commands when ncq commands active
libata: add SATA PMP revision information for spec 1.2
libata: fix off-by-one error in ata_tf_read_block()
ahci: Gigabyte GA-MA69VM-S2 can't do 64bit DMA
ahci: make ahci_asus_m2a_vm_32bit_only() quirk more generic
dmi: extend dmi_get_year() to dmi_get_date()
dmi: fix date handling in dmi_get_year()
libata: unbreak TPM filtering by reorganizing ata_scsi_pass_thru()
sata_sis: convert to slave_link
sata_sil24: always set protocol override for non-ATAPI data commands
libata: Export AHCI capabilities
libata: Delegate nonrot flag setting to SCSI
[libata] Add pata_rdc driver for RDC ATA devices
drivers/ata: Remove unnecessary semicolons
libata: remove spindown skipping and warning
...
Diffstat (limited to 'drivers/ata/sata_sil.c')
| -rw-r--r-- | drivers/ata/sata_sil.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/ata/sata_sil.c b/drivers/ata/sata_sil.c index 35bd5cc7f28..3cb69d5fb81 100644 --- a/drivers/ata/sata_sil.c +++ b/drivers/ata/sata_sil.c @@ -565,6 +565,19 @@ static void sil_freeze(struct ata_port *ap) tmp |= SIL_MASK_IDE0_INT << ap->port_no; writel(tmp, mmio_base + SIL_SYSCFG); readl(mmio_base + SIL_SYSCFG); /* flush */ + + /* Ensure DMA_ENABLE is off. + * + * This is because the controller will not give us access to the + * taskfile registers while a DMA is in progress + */ + iowrite8(ioread8(ap->ioaddr.bmdma_addr) & ~SIL_DMA_ENABLE, + ap->ioaddr.bmdma_addr); + + /* According to ata_bmdma_stop, an HDMA transition requires + * on PIO cycle. But we can't read a taskfile register. + */ + ioread8(ap->ioaddr.bmdma_addr); } static void sil_thaw(struct ata_port *ap) |