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authorBecky Bruce <beckyb@kernel.crashing.org>2009-02-03 18:10:55 -0600
committerWolfgang Denk <wd@denx.de>2009-02-10 00:31:05 +0100
commit1785dbeed43599eed1d8875673c96912cd770141 (patch)
treef9c23e25ad9dcda073b714d8e64c922dc063c421
parentd591a80e74091e7a0658d165721e6c7de2ef0bcd (diff)
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drivers/block/ahci: Fix pci mapping bug
The code assumes that the pci bus address and the virtual address used to access a region are the same, but they might not be. Fix this assumption. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
-rw-r--r--drivers/block/ahci.c7
1 files changed, 2 insertions, 5 deletions
diff --git a/drivers/block/ahci.c b/drivers/block/ahci.c
index 2445e8c..e1b66fd 100644
--- a/drivers/block/ahci.c
+++ b/drivers/block/ahci.c
@@ -251,7 +251,6 @@ static void ahci_print_info(struct ahci_probe_ent *probe_ent)
static int ahci_init_one(pci_dev_t pdev)
{
- u32 iobase;
u16 vendor;
int rc;
@@ -261,9 +260,6 @@ static int ahci_init_one(pci_dev_t pdev)
memset(probe_ent, 0, sizeof(struct ahci_probe_ent));
probe_ent->dev = pdev;
- pci_read_config_dword(pdev, AHCI_PCI_BAR, &iobase);
- iobase &= ~0xf;
-
probe_ent->host_flags = ATA_FLAG_SATA
| ATA_FLAG_NO_LEGACY
| ATA_FLAG_MMIO
@@ -272,7 +268,8 @@ static int ahci_init_one(pci_dev_t pdev)
probe_ent->pio_mask = 0x1f;
probe_ent->udma_mask = 0x7f; /*Fixme,assume to support UDMA6 */
- probe_ent->mmio_base = iobase;
+ probe_ent->mmio_base = (u32)pci_map_bar(pdev, AHCI_PCI_BAR,
+ PCI_REGION_MEM);
/* Take from kernel:
* JMicron-specific fixup: