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authorIngo Molnar <mingo@elte.hu>2008-08-11 11:19:20 +0200
committerIngo Molnar <mingo@elte.hu>2008-08-11 11:19:20 +0200
commit8067794bec1cc5de1431102cf0a6a1c7ce75cd85 (patch)
tree2bfa0fba060d253bbd972282b29a3d60c3e7cb7f /arch/arm/mach-shark/include/mach/io.h
parent7ab6af7ab69df8c9c5fbc380004fb81187742096 (diff)
parent796aadeb1b2db9b5d463946766c5bbfd7717158c (diff)
Merge branch 'linus' into x86/x2apic
Conflicts: arch/x86/kernel/genapic_64.c Manual merge: arch/x86/kernel/genx2apic_uv_x.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/arm/mach-shark/include/mach/io.h')
-rw-r--r--arch/arm/mach-shark/include/mach/io.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm/mach-shark/include/mach/io.h b/arch/arm/mach-shark/include/mach/io.h
new file mode 100644
index 00000000000..92475922c06
--- /dev/null
+++ b/arch/arm/mach-shark/include/mach/io.h
@@ -0,0 +1,56 @@
+/*
+ * arch/arm/mach-shark/include/mach/io.h
+ *
+ * by Alexander Schulz
+ *
+ * derived from:
+ * arch/arm/mach-ebsa110/include/mach/io.h
+ * Copyright (C) 1997,1998 Russell King
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <mach/hardware.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * We use two different types of addressing - PC style addresses, and ARM
+ * addresses. PC style accesses the PC hardware with the normal PC IO
+ * addresses, eg 0x3f8 for serial#1. ARM addresses are 0x80000000+
+ * and are translated to the start of IO.
+ */
+#define __PORT_PCIO(x) (!((x) & 0x80000000))
+
+#define __io(a) ((void __iomem *)(PCIO_BASE + (a)))
+
+
+static inline unsigned int __ioaddr (unsigned int port) \
+{ \
+ if (__PORT_PCIO(port)) \
+ return (unsigned int)(PCIO_BASE + (port)); \
+ else \
+ return (unsigned int)(IO_BASE + (port)); \
+}
+
+#define __mem_pci(addr) (addr)
+
+/*
+ * Translated address IO functions
+ *
+ * IO address has already been translated to a virtual address
+ */
+#define outb_t(v,p) \
+ (*(volatile unsigned char *)(p) = (v))
+
+#define inb_t(p) \
+ (*(volatile unsigned char *)(p))
+
+#define outl_t(v,p) \
+ (*(volatile unsigned long *)(p) = (v))
+
+#define inl_t(p) \
+ (*(volatile unsigned long *)(p))
+
+#endif