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authorYinghai Lu <yhlu.kernel@gmail.com>2008-05-22 14:35:21 -0700
committerJesse Barnes <jbarnes@virtuousgeek.org>2008-06-10 10:59:51 -0700
commite7891c733f9b26c851edde50cf886a30bd133dbd (patch)
tree586fcf54403d2d2b04e62f1665b33abc58bb09c1
parent25e18499e08cb097cbbfeab5de25d094d5312ee5 (diff)
PCI/x86: write_pci_config_byte fix offset
also add write_pci_config_16 Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
-rw-r--r--arch/x86/pci/early.c9
-rw-r--r--include/asm-x86/pci-direct.h1
2 files changed, 9 insertions, 1 deletions
diff --git a/arch/x86/pci/early.c b/arch/x86/pci/early.c
index 42df4b6606df..8e2821e8dac5 100644
--- a/arch/x86/pci/early.c
+++ b/arch/x86/pci/early.c
@@ -49,7 +49,14 @@ void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val)
{
PDprintk("%x writing to %x: %x\n", slot, offset, val);
outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
- outb(val, 0xcfc);
+ outb(val, 0xcfc + (offset&3));
+}
+
+void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val)
+{
+ PDprintk("%x writing to %x: %x\n", slot, offset, val);
+ outl(0x80000000 | (bus<<16) | (slot<<11) | (func<<8) | offset, 0xcf8);
+ outw(val, 0xcfc + (offset&2));
}
int early_pci_allowed(void)
diff --git a/include/asm-x86/pci-direct.h b/include/asm-x86/pci-direct.h
index 5b21485be573..7bd40b4de751 100644
--- a/include/asm-x86/pci-direct.h
+++ b/include/asm-x86/pci-direct.h
@@ -11,6 +11,7 @@ extern u8 read_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset);
extern u16 read_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset);
extern void write_pci_config(u8 bus, u8 slot, u8 func, u8 offset, u32 val);
extern void write_pci_config_byte(u8 bus, u8 slot, u8 func, u8 offset, u8 val);
+extern void write_pci_config_16(u8 bus, u8 slot, u8 func, u8 offset, u16 val);
extern int early_pci_allowed(void);