Signed-off-by: Alexander Gordeev <agordeev@xxxxxxxxxx>
---
lib/x86/asm/pci.h | 23 +++++++++++++++++++++--
1 file changed, 21 insertions(+), 2 deletions(-)
diff --git a/lib/x86/asm/pci.h b/lib/x86/asm/pci.h
index d10a32c38dd5..917da19ac36c 100644
--- a/lib/x86/asm/pci.h
+++ b/lib/x86/asm/pci.h
@@ -9,11 +9,30 @@
#include "pci.h"
#include "x86/io.h"
+#define PCI_CONF1_ADDRESS(dev, reg) ((0x1 << 31) | (dev << 8) | reg)
+
static inline uint32_t pci_config_readl(pcidevaddr_t dev, uint8_t reg)
{
- uint32_t index = reg | (dev << 8) | (0x1 << 31);
- outl(index, 0xCF8);
+ outl(PCI_CONF1_ADDRESS(dev, reg), 0xCF8);
return inl(0xCFC);
}
+static inline uint8_t pci_config_readb(pcidevaddr_t dev, uint8_t reg)
+{
+ outl(PCI_CONF1_ADDRESS(dev, reg), 0xCF8);
+ return inb(0xCFC);
+}
+
+static inline uint16_t pci_config_readw(pcidevaddr_t dev, uint8_t reg)
+{
+ outl(PCI_CONF1_ADDRESS(dev, reg), 0xCF8);
+ return inw(0xCFC);
+}
+
+static inline void pci_config_writel(pcidevaddr_t dev, uint8_t reg, uint32_t val)
+{
+ outl(PCI_CONF1_ADDRESS(dev, reg), 0xCF8);
+ outl(val, 0xCFC);
+}
+
#endif
--
1.8.3.1
--
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