1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* include/asm-arm/arch-lh7a40x/hardware.h
|
|
*
|
|
* Copyright (C) 2004 Coastal Environmental Systems
|
|
*
|
|
* [ Substantially cribbed from include/asm-arm/arch-pxa/hardware.h ]
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License
|
|
* version 2 as published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
#ifndef __ASM_ARCH_HARDWARE_H
|
|
#define __ASM_ARCH_HARDWARE_H
|
|
|
|
#define io_p2v(x) (0xf0000000 | (((x) & 0xfff00000) >> 4) | ((x) & 0x0000ffff))
|
|
#define io_v2p(x) ( (((x) & 0x0fff0000) << 4) | ((x) & 0x0000ffff))
|
|
|
|
#ifdef __ASSEMBLY__
|
|
|
|
# define __REG(x) io_p2v(x)
|
|
# define __PREG(x) io_v2p(x)
|
|
|
|
#else
|
|
|
|
# if 0
|
|
# define __REG(x) (*((volatile u32 *)io_p2v(x)))
|
|
# else
|
|
/*
|
|
* This __REG() version gives the same results as the one above, except
|
|
* that we are fooling gcc somehow so it generates far better and smaller
|
|
* assembly code for access to contigous registers. It's a shame that gcc
|
|
* doesn't guess this by itself.
|
|
*/
|
|
#include <asm/types.h>
|
|
typedef struct { volatile u32 offset[4096]; } __regbase;
|
|
# define __REGP(x) ((__regbase *)((x)&~4095))->offset[((x)&4095)>>2]
|
|
# define __REG(x) __REGP(io_p2v(x))
|
|
typedef struct { volatile u16 offset[4096]; } __regbase16;
|
|
# define __REGP16(x) ((__regbase16 *)((x)&~4095))->offset[((x)&4095)>>1]
|
|
# define __REG16(x) __REGP16(io_p2v(x))
|
|
typedef struct { volatile u8 offset[4096]; } __regbase8;
|
|
# define __REGP8(x) ((__regbase8 *)((x)&~4095))->offset[(x)&4095]
|
|
# define __REG8(x) __REGP8(io_p2v(x))
|
|
#endif
|
|
|
|
/* Let's kick gcc's ass again... */
|
|
# define __REG2(x,y) \
|
|
( __builtin_constant_p(y) ? (__REG((x) + (y))) \
|
|
: (*(volatile u32 *)((u32)&__REG(x) + (y))) )
|
|
|
|
# define __PREG(x) (io_v2p((u32)&(x)))
|
|
|
|
#endif
|
|
|
|
#include "registers.h"
|
|
|
|
#endif /* _ASM_ARCH_HARDWARE_H */
|