diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-27 16:03:32 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-27 16:03:32 -0700 |
commit | d61b7a572b292e2be409e13b4b3adf475f18fb29 (patch) | |
tree | e9d30390860147136c05e66abf1edda1bc5b0562 /arch/arm/mach-s3c24xx/include/mach/io.h | |
parent | 18d9946bc7e2252fe3c0f2f609ac383c627edefd (diff) | |
parent | f4e2467bad53023589cbff18dd1ab6e0aa3f004c (diff) |
Merge tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull "ARM: global cleanups" from Arnd Bergmann:
"Quite a bit of code gets removed, and some stuff moved around, mostly
the old samsung s3c24xx stuff. There should be no functional changes
in this series otherwise. Some cleanups have dependencies on other
arm-soc branches and will be sent in the second round.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>"
Fixed up trivial conflicts mainly due to #include's being changes on
both sides.
* tag 'cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (121 commits)
ep93xx: Remove unnecessary includes of ep93xx-regs.h
ep93xx: Move EP93XX_SYSCON defines to SoC private header
ep93xx: Move crunch code to mach-ep93xx directory
ep93xx: Make syscon access functions private to SoC
ep93xx: Configure GPIO ports in core code
ep93xx: Move peripheral defines to local SoC header
ep93xx: Convert the watchdog driver into a platform device.
ep93xx: Use ioremap for backlight driver
ep93xx: Move GPIO defines to gpio-ep93xx.h
ep93xx: Don't use system controller defines in audio drivers
ep93xx: Move PHYS_BASE defines to local SoC header file
ARM: EXYNOS: Add clock register addresses for EXYNOS4X12 bus devfreq driver
ARM: EXYNOS: add clock registers for exynos4x12-cpufreq
PM / devfreq: update the name of EXYNOS clock registers that were omitted
PM / devfreq: update the name of EXYNOS clock register
ARM: EXYNOS: change the prefix S5P_ to EXYNOS4_ for clock
ARM: EXYNOS: use static declaration on regarding clock
ARM: EXYNOS: replace clock.c for other new EXYNOS SoCs
ARM: OMAP2+: Fix build error after merge
ARM: S3C24XX: remove call to s3c24xx_setup_clocks
...
Diffstat (limited to 'arch/arm/mach-s3c24xx/include/mach/io.h')
-rw-r--r-- | arch/arm/mach-s3c24xx/include/mach/io.h | 216 |
1 files changed, 216 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c24xx/include/mach/io.h b/arch/arm/mach-s3c24xx/include/mach/io.h new file mode 100644 index 000000000000..118749f37c4c --- /dev/null +++ b/arch/arm/mach-s3c24xx/include/mach/io.h @@ -0,0 +1,216 @@ +/* + * arch/arm/mach-s3c2410/include/mach/io.h + * from arch/arm/mach-rpc/include/mach/io.h + * + * Copyright (C) 1997 Russell King + * (C) 2003 Simtec Electronics +*/ + +#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 above A28 + * and are translated to the start of IO. Note that all addresses are + * not shifted left! + */ + +#define __PORT_PCIO(x) ((x) < (1<<28)) + +#define PCIO_BASE (S3C24XX_VA_ISA_WORD) +#define PCIO_BASE_b (S3C24XX_VA_ISA_BYTE) +#define PCIO_BASE_w (S3C24XX_VA_ISA_WORD) +#define PCIO_BASE_l (S3C24XX_VA_ISA_WORD) +/* + * Dynamic IO functions - let the compiler + * optimize the expressions + */ + +#define DECLARE_DYN_OUT(sz,fnsuffix,instr) \ +static inline void __out##fnsuffix (unsigned int val, unsigned int port) \ +{ \ + unsigned long temp; \ + __asm__ __volatile__( \ + "cmp %2, #(1<<28)\n\t" \ + "mov %0, %2\n\t" \ + "addcc %0, %0, %3\n\t" \ + "str" instr " %1, [%0, #0 ] @ out" #fnsuffix \ + : "=&r" (temp) \ + : "r" (val), "r" (port), "Ir" (PCIO_BASE_##fnsuffix) \ + : "cc"); \ +} + + +#define DECLARE_DYN_IN(sz,fnsuffix,instr) \ +static inline unsigned sz __in##fnsuffix (unsigned int port) \ +{ \ + unsigned long temp, value; \ + __asm__ __volatile__( \ + "cmp %2, #(1<<28)\n\t" \ + "mov %0, %2\n\t" \ + "addcc %0, %0, %3\n\t" \ + "ldr" instr " %1, [%0, #0 ] @ in" #fnsuffix \ + : "=&r" (temp), "=r" (value) \ + : "r" (port), "Ir" (PCIO_BASE_##fnsuffix) \ + : "cc"); \ + return (unsigned sz)value; \ +} + +static inline void __iomem *__ioaddr (unsigned long port) +{ + return __PORT_PCIO(port) ? (PCIO_BASE + port) : (void __iomem *)port; +} + +#define DECLARE_IO(sz,fnsuffix,instr) \ + DECLARE_DYN_IN(sz,fnsuffix,instr) \ + DECLARE_DYN_OUT(sz,fnsuffix,instr) + +DECLARE_IO(char,b,"b") +DECLARE_IO(short,w,"h") +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))); \ + else \ + __asm__ __volatile__( \ + "strb %0, [%1, #0] @ outbc" \ + : : "r" (value), "r" ((port))); \ +}) + +#define __inbc(port) \ +({ \ + unsigned char result; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "ldrb %0, [%1, %2] @ inbc" \ + : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port))); \ + else \ + __asm__ __volatile__( \ + "ldrb %0, [%1, #0] @ inbc" \ + : "=r" (result) : "r" ((port))); \ + result; \ +}) + +#define __outwc(value,port) \ +({ \ + unsigned long v = value; \ + if (__PORT_PCIO((port))) { \ + if ((port) < 256 && (port) > -256) \ + __asm__ __volatile__( \ + "strh %0, [%1, %2] @ outwc" \ + : : "r" (v), "r" (PCIO_BASE), "Jr" ((port))); \ + else if ((port) > 0) \ + __asm__ __volatile__( \ + "strh %0, [%1, %2] @ outwc" \ + : : "r" (v), \ + "r" (PCIO_BASE + ((port) & ~0xff)), \ + "Jr" (((port) & 0xff))); \ + else \ + __asm__ __volatile__( \ + "strh %0, [%1, #0] @ outwc" \ + : : "r" (v), \ + "r" (PCIO_BASE + (port))); \ + } else \ + __asm__ __volatile__( \ + "strh %0, [%1, #0] @ outwc" \ + : : "r" (v), "r" ((port))); \ +}) + +#define __inwc(port) \ +({ \ + unsigned short result; \ + if (__PORT_PCIO((port))) { \ + if ((port) < 256 && (port) > -256 ) \ + __asm__ __volatile__( \ + "ldrh %0, [%1, %2] @ inwc" \ + : "=r" (result) \ + : "r" (PCIO_BASE), \ + "Jr" ((port))); \ + else if ((port) > 0) \ + __asm__ __volatile__( \ + "ldrh %0, [%1, %2] @ inwc" \ + : "=r" (result) \ + : "r" (PCIO_BASE + ((port) & ~0xff)), \ + "Jr" (((port) & 0xff))); \ + else \ + __asm__ __volatile__( \ + "ldrh %0, [%1, #0] @ inwc" \ + : "=r" (result) \ + : "r" (PCIO_BASE + ((port)))); \ + } else \ + __asm__ __volatile__( \ + "ldrh %0, [%1, #0] @ inwc" \ + : "=r" (result) : "r" ((port))); \ + result; \ +}) + +#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))); \ + else \ + __asm__ __volatile__( \ + "str %0, [%1, #0] @ outlc" \ + : : "r" (v), "r" ((port))); \ +}) + +#define __inlc(port) \ +({ \ + unsigned long result; \ + if (__PORT_PCIO((port))) \ + __asm__ __volatile__( \ + "ldr %0, [%1, %2] @ inlc" \ + : "=r" (result) : "r" (PCIO_BASE), "Jr" ((port))); \ + else \ + __asm__ __volatile__( \ + "ldr %0, [%1, #0] @ inlc" \ + : "=r" (result) : "r" ((port))); \ + result; \ +}) + +#define __ioaddrc(port) ((__PORT_PCIO(port) ? PCIO_BASE + (port) : (void __iomem *)(port))) + +#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)) + +#define insb(p,d,l) __raw_readsb(__ioaddr(p),d,l) +#define insw(p,d,l) __raw_readsw(__ioaddr(p),d,l) +#define insl(p,d,l) __raw_readsl(__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) +#define outsl(p,d,l) __raw_writesl(__ioaddr(p),d,l) + +/* + * 1:1 mapping for ioremapped regions. + */ +#define __mem_pci(x) (x) + +#endif |