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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2011-10-11 20:04:05 +0200
committerJeff Garzik <jgarzik@redhat.com>2011-10-14 13:08:05 -0400
commit73222c2ddf5e2da2223d0b7329bad85c7e6ae1f8 (patch)
treedcea643e37026c9033f6649d2237723f4132c70b /drivers/ata/pata_cs5535.c
parentf4c6ae50209a4405b2b0bc99eb449060877eef42 (diff)
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pata_cs5535: no need to program PIO0 timings during device init
Core libata code takes care of it nowadays. Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/ata/pata_cs5535.c')
-rw-r--r--drivers/ata/pata_cs5535.c12
1 files changed, 0 insertions, 12 deletions
diff --git a/drivers/ata/pata_cs5535.c b/drivers/ata/pata_cs5535.c
index 697a3edd38c3..a0b4640125ae 100644
--- a/drivers/ata/pata_cs5535.c
+++ b/drivers/ata/pata_cs5535.c
@@ -67,8 +67,6 @@
#define CS5535_CABLE_DETECT 0x48
-#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL)==0x00009172 )
-
/**
* cs5535_cable_detect - detect cable type
* @ap: Port to detect on
@@ -188,16 +186,6 @@ static int cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id)
};
const struct ata_port_info *ppi[] = { &info, &ata_dummy_port_info };
- u32 timings, dummy;
-
- /* Check the BIOS set the initial timing clock. If not set the
- timings for PIO0 */
- rdmsr(ATAC_CH0D0_PIO, timings, dummy);
- if (CS5535_BAD_PIO(timings))
- wrmsr(ATAC_CH0D0_PIO, 0xF7F4F7F4UL, 0);
- rdmsr(ATAC_CH0D1_PIO, timings, dummy);
- if (CS5535_BAD_PIO(timings))
- wrmsr(ATAC_CH0D1_PIO, 0xF7F4F7F4UL, 0);
return ata_pci_bmdma_init_one(dev, ppi, &cs5535_sht, NULL, 0);
}