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authorLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-08-08 11:38:42 -0700
commit49b75b87ce2dfbd99e59a50c3681b154d07e3a22 (patch)
treef14e1da19a13d87a512f9043c2f37fd75dd122b3 /arch/arm/mach-clps7500/include/mach/io.h
parentf1c7f79b6ab4f7ada002a0fae47f462ede6b6857 (diff)
parent097d9eb537ff4d88b74c3fe67392e27c478ca3c5 (diff)
Merge branch 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus-merged' of master.kernel.org:/home/rmk/linux-2.6-arm: [ARM] 5177/1: arm/mach-sa1100/Makefile: remove CONFIG_SA1100_USB [ARM] 5166/1: magician: add MAINTAINERS entry [ARM] fix pnx4008 build errors [ARM] Fix SMP booting with non-zero PHYS_OFFSET [ARM] 5185/1: Fix spi num_chipselect for lubbock [ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach [ARM] Add support for arch/arm/mach-*/include and arch/arm/plat-*/include [ARM] Remove asm/hardware.h, use asm/arch/hardware.h instead [ARM] Eliminate useless includes of asm/mach-types.h [ARM] Fix circular include dependency with IRQ headers avr32: Use <mach/foo.h> instead of <asm/arch/foo.h> avr32: Introduce arch/avr32/mach-*/include/mach avr32: Move include/asm-avr32 to arch/avr32/include/asm [ARM] sa1100_wdt: use reset_status to remember watchdog reset status [ARM] pxa: introduce reset_status and clear_reset_status for driver's usage [ARM] pxa: introduce reset.h for reset specific header information
Diffstat (limited to 'arch/arm/mach-clps7500/include/mach/io.h')
-rw-r--r--arch/arm/mach-clps7500/include/mach/io.h255
1 files changed, 255 insertions, 0 deletions
diff --git a/arch/arm/mach-clps7500/include/mach/io.h b/arch/arm/mach-clps7500/include/mach/io.h
new file mode 100644
index 00000000000..2ff2860889e
--- /dev/null
+++ b/arch/arm/mach-clps7500/include/mach/io.h
@@ -0,0 +1,255 @@
+/*
+ * arch/arm/mach-clps7500/include/mach/io.h
+ * from arch/arm/mach-rpc/include/mach/io.h
+ *
+ * Copyright (C) 1997 Russell King
+ *
+ * Modifications:
+ * 06-Dec-1997 RMK Created.
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <mach/hardware.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * GCC is totally crap at loading/storing data. We try to persuade it
+ * to do the right thing by using these whereever possible instead of
+ * the above.
+ */
+#define __arch_base_getb(b,o) \
+ ({ \
+ unsigned int v, r = (b); \
+ __asm__ __volatile__( \
+ "ldrb %0, [%1, %2]" \
+ : "=r" (v) \
+ : "r" (r), "Ir" (o)); \
+ v; \
+ })
+
+#define __arch_base_getl(b,o) \
+ ({ \
+ unsigned int v, r = (b); \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2]" \
+ : "=r" (v) \
+ : "r" (r), "Ir" (o)); \
+ v; \
+ })
+
+#define __arch_base_putb(v,b,o) \
+ ({ \
+ unsigned int r = (b); \
+ __asm__ __volatile__( \
+ "strb %0, [%1, %2]" \
+ : \
+ : "r" (v), "r" (r), "Ir" (o)); \
+ })
+
+#define __arch_base_putl(v,b,o) \
+ ({ \
+ unsigned int r = (b); \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2]" \
+ : \
+ : "r" (v), "r" (r), "Ir" (o)); \
+ })
+
+/*
+ * 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. Note that all addresses are
+ * shifted left!
+ */
+#define __PORT_PCIO(x) (!((x) & 0x80000000))
+
+/*
+ * Dynamic IO functions - let the compiler
+ * optimize the expressions
+ */
+static inline void __outb (unsigned int value, unsigned int port)
+{
+ unsigned long temp;
+ __asm__ __volatile__(
+ "tst %2, #0x80000000\n\t"
+ "mov %0, %4\n\t"
+ "addeq %0, %0, %3\n\t"
+ "strb %1, [%0, %2, lsl #2] @ outb"
+ : "=&r" (temp)
+ : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
+ : "cc");
+}
+
+static inline void __outw (unsigned int value, unsigned int port)
+{
+ unsigned long temp;
+ __asm__ __volatile__(
+ "tst %2, #0x80000000\n\t"
+ "mov %0, %4\n\t"
+ "addeq %0, %0, %3\n\t"
+ "str %1, [%0, %2, lsl #2] @ outw"
+ : "=&r" (temp)
+ : "r" (value|value<<16), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
+ : "cc");
+}
+
+static inline void __outl (unsigned int value, unsigned int port)
+{
+ unsigned long temp;
+ __asm__ __volatile__(
+ "tst %2, #0x80000000\n\t"
+ "mov %0, %4\n\t"
+ "addeq %0, %0, %3\n\t"
+ "str %1, [%0, %2, lsl #2] @ outl"
+ : "=&r" (temp)
+ : "r" (value), "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE)
+ : "cc");
+}
+
+#define DECLARE_DYN_IN(sz,fnsuffix,instr) \
+static inline unsigned sz __in##fnsuffix (unsigned int port) \
+{ \
+ unsigned long temp, value; \
+ __asm__ __volatile__( \
+ "tst %2, #0x80000000\n\t" \
+ "mov %0, %4\n\t" \
+ "addeq %0, %0, %3\n\t" \
+ "ldr" instr " %1, [%0, %2, lsl #2] @ in" #fnsuffix \
+ : "=&r" (temp), "=r" (value) \
+ : "r" (port), "Ir" (PCIO_BASE - IO_BASE), "Ir" (IO_BASE) \
+ : "cc"); \
+ return (unsigned sz)value; \
+}
+
+static inline unsigned int __ioaddr (unsigned int port) \
+{ \
+ if (__PORT_PCIO(port)) \
+ return (unsigned int)(PCIO_BASE + (port << 2)); \
+ else \
+ return (unsigned int)(IO_BASE + (port << 2)); \
+}
+
+#define DECLARE_IO(sz,fnsuffix,instr) \
+ DECLARE_DYN_IN(sz,fnsuffix,instr)
+
+DECLARE_IO(char,b,"b")
+DECLARE_IO(short,w,"")
+DECLARE_IO(int,l,"")
+
+#undef DECLARE_IO
+#undef DECLARE_DYN_IN
+
+/*
+ * Constant address IO functions
+ *
+ * These have to be macros for the 'J' constraint to work -
+ * +/-4096 immediate operand.
+ */
+#define __outbc(value,port) \
+({ \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "strb %0, [%1, %2] @ outbc" \
+ : : "r" (value), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "strb %0, [%1, %2] @ outbc" \
+ : : "r" (value), "r" (IO_BASE), "r" ((port) << 2)); \
+})
+
+#define __inbc(port) \
+({ \
+ unsigned char result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldrb %0, [%1, %2] @ inbc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "ldrb %0, [%1, %2] @ inbc" \
+ : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
+ result; \
+})
+
+#define __outwc(value,port) \
+({ \
+ unsigned long v = value; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2] @ outwc" \
+ : : "r" (v|v<<16), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2] @ outwc" \
+ : : "r" (v|v<<16), "r" (IO_BASE), "r" ((port) << 2)); \
+})
+
+#define __inwc(port) \
+({ \
+ unsigned short result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inwc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inwc" \
+ : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
+ result & 0xffff; \
+})
+
+#define __outlc(value,port) \
+({ \
+ unsigned long v = value; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2] @ outlc" \
+ : : "r" (v), "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "str %0, [%1, %2] @ outlc" \
+ : : "r" (v), "r" (IO_BASE), "r" ((port) << 2)); \
+})
+
+#define __inlc(port) \
+({ \
+ unsigned long result; \
+ if (__PORT_PCIO((port))) \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inlc" \
+ : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port) << 2)); \
+ else \
+ __asm__ __volatile__( \
+ "ldr %0, [%1, %2] @ inlc" \
+ : "=r" (result) : "r" (IO_BASE), "r" ((port) << 2)); \
+ result; \
+})
+
+#define __ioaddrc(port) \
+ (__PORT_PCIO((port)) ? PCIO_BASE + ((port) << 2) : IO_BASE + ((port) << 2))
+
+#define inb(p) (__builtin_constant_p((p)) ? __inbc(p) : __inb(p))
+#define inw(p) (__builtin_constant_p((p)) ? __inwc(p) : __inw(p))
+#define inl(p) (__builtin_constant_p((p)) ? __inlc(p) : __inl(p))
+#define outb(v,p) (__builtin_constant_p((p)) ? __outbc(v,p) : __outb(v,p))
+#define outw(v,p) (__builtin_constant_p((p)) ? __outwc(v,p) : __outw(v,p))
+#define outl(v,p) (__builtin_constant_p((p)) ? __outlc(v,p) : __outl(v,p))
+#define __ioaddr(p) (__builtin_constant_p((p)) ? __ioaddr(p) : __ioaddrc(p))
+/* the following macro is deprecated */
+#define ioaddr(port) __ioaddr((port))
+
+#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l)
+#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l)
+
+#define outsb(p,d,l) __raw_writesb(__ioaddr(p),d,l)
+#define outsw(p,d,l) __raw_writesw(__ioaddr(p),d,l)
+
+/*
+ * 1:1 mapping for ioremapped regions.
+ */
+#define __mem_pci(x) (x)
+
+#endif