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authorSascha Hauer <s.hauer@pengutronix.de>2009-10-28 10:10:56 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2009-10-28 10:10:56 +0100
commit40a5f3de4e19d43fd34ddd0d81542f73ec64a287 (patch)
tree0ecbebaaa9ddec5dce11382cfce8b473517b4ae6 /arch/ppc/include/asm/pci_io.h
parent5b28d03dbbfda2409a8bff4b77d5f38824a74782 (diff)
parentdaad436bf76ad8acdf66326b1cc3769434cca97f (diff)
downloadbarebox-40a5f3de4e19d43fd34ddd0d81542f73ec64a287.tar.gz
barebox-40a5f3de4e19d43fd34ddd0d81542f73ec64a287.tar.xz
Merge branch 'for-sascha' of git://uboot.jcrosoft.org/u-boot-v2 into from-jean
Conflicts: board/a9m2440/a9m2440.c board/pcm043/pcm043.c drivers/nand/nand_imx.c Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/ppc/include/asm/pci_io.h')
-rw-r--r--arch/ppc/include/asm/pci_io.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/ppc/include/asm/pci_io.h b/arch/ppc/include/asm/pci_io.h
new file mode 100644
index 0000000000..9b738c383f
--- /dev/null
+++ b/arch/ppc/include/asm/pci_io.h
@@ -0,0 +1,43 @@
+/* originally from linux source (asm-ppc/io.h).
+ * Sanity added by Rob Taylor, Flying Pig Systems, 2000
+ */
+#ifndef _PCI_IO_H_
+#define _PCI_IO_H_
+
+#include "io.h"
+
+
+#define pci_read_le16(addr, dest) \
+ __asm__ __volatile__("lhbrx %0,0,%1" : "=r" (dest) : \
+ "r" (addr), "m" (*addr));
+
+#define pci_write_le16(addr, val) \
+ __asm__ __volatile__("sthbrx %1,0,%2" : "=m" (*addr) : \
+ "r" (val), "r" (addr));
+
+
+#define pci_read_le32(addr, dest) \
+ __asm__ __volatile__("lwbrx %0,0,%1" : "=r" (dest) : \
+ "r" (addr), "m" (*addr));
+
+#define pci_write_le32(addr, val) \
+__asm__ __volatile__("stwbrx %1,0,%2" : "=m" (*addr) : \
+ "r" (val), "r" (addr));
+
+#define pci_readb(addr,b) ((b) = *(volatile u8 *) (addr))
+#define pci_writeb(b,addr) ((*(volatile u8 *) (addr)) = (b))
+
+#if !defined(__BIG_ENDIAN)
+#define pci_readw(addr,b) ((b) = *(volatile u16 *) (addr))
+#define pci_readl(addr,b) ((b) = *(volatile u32 *) (addr))
+#define pci_writew(b,addr) ((*(volatile u16 *) (addr)) = (b))
+#define pci_writel(b,addr) ((*(volatile u32 *) (addr)) = (b))
+#else
+#define pci_readw(addr,b) pci_read_le16((volatile u16 *)(addr),(b))
+#define pci_readl(addr,b) pci_read_le32((volatile u32 *)(addr),(b))
+#define pci_writew(b,addr) pci_write_le16((volatile u16 *)(addr),(b))
+#define pci_writel(b,addr) pci_write_le32((volatile u32 *)(addr),(b))
+#endif
+
+
+#endif /* _PCI_IO_H_ */