diff options
author | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2008-08-08 21:10:12 +0100 |
commit | af7a535688a758d15f06a98833e6a143b29af9de (patch) | |
tree | bac5ab210bbbbe276f0e44ed84194d7c8bb16aae /arch/arm/mach-ns9xxx/include/mach/hardware.h | |
parent | 0c17e4ceedd35c78b1c7413dbd16279a350be6bc (diff) | |
parent | c41107c2d4fd31924533f4dbc4c3428acc2b5894 (diff) |
Merge http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm into for-rmk
Diffstat (limited to 'arch/arm/mach-ns9xxx/include/mach/hardware.h')
-rw-r--r-- | arch/arm/mach-ns9xxx/include/mach/hardware.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm/mach-ns9xxx/include/mach/hardware.h b/arch/arm/mach-ns9xxx/include/mach/hardware.h new file mode 100644 index 00000000000..6dbb2030f56 --- /dev/null +++ b/arch/arm/mach-ns9xxx/include/mach/hardware.h @@ -0,0 +1,79 @@ +/* + * arch/arm/mach-ns9xxx/include/mach/hardware.h + * + * Copyright (C) 2006 by Digi International Inc. + * All rights reserved. + * + * 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 + +#include <asm/memory.h> + +/* + * NetSilicon NS9xxx internal mapping: + * + * physical <--> virtual + * 0x90000000 - 0x906fffff <--> 0xf9000000 - 0xf96fffff + * 0xa0100000 - 0xa0afffff <--> 0xfa100000 - 0xfaafffff + */ +#define io_p2v(x) (0xf0000000 \ + + (((x) & 0xf0000000) >> 4) \ + + ((x) & 0x00ffffff)) + +#define io_v2p(x) ((((x) & 0x0f000000) << 4) \ + + ((x) & 0x00ffffff)) + +#define __REGSHIFT(mask) ((mask) & (-(mask))) + +#define __REGBIT(bit) ((u32)1 << (bit)) +#define __REGBITS(hbit, lbit) ((((u32)1 << ((hbit) - (lbit) + 1)) - 1) << (lbit)) +#define __REGVAL(mask, value) (((value) * __REGSHIFT(mask)) & (mask)) + +#ifndef __ASSEMBLY__ + +# define __REG(x) ((void __iomem __force *)io_p2v((x))) +# define __REG2(x, y) ((void __iomem __force *)(io_p2v((x)) + 4 * (y))) + +# define __REGSET(var, field, value) \ + ((var) = (((var) & ~((field) & ~(value))) | (value))) + +# define REGSET(var, reg, field, value) \ + __REGSET(var, reg ## _ ## field, reg ## _ ## field ## _ ## value) + +# define REGSET_IDX(var, reg, field, idx, value) \ + __REGSET(var, reg ## _ ## field((idx)), reg ## _ ## field ## _ ## value((idx))) + +# define REGSETIM(var, reg, field, value) \ + __REGSET(var, reg ## _ ## field, __REGVAL(reg ## _ ## field, (value))) + +# define REGSETIM_IDX(var, reg, field, idx, value) \ + __REGSET(var, reg ## _ ## field((idx)), __REGVAL(reg ## _ ## field((idx)), (value))) + +# define __REGGET(var, field) \ + (((var) & (field))) + +# define REGGET(var, reg, field) \ + __REGGET(var, reg ## _ ## field) + +# define REGGET_IDX(var, reg, field, idx) \ + __REGGET(var, reg ## _ ## field((idx))) + +# define REGGETIM(var, reg, field) \ + __REGGET(var, reg ## _ ## field) / __REGSHIFT(reg ## _ ## field) + +# define REGGETIM_IDX(var, reg, field, idx) \ + __REGGET(var, reg ## _ ## field((idx))) / \ + __REGSHIFT(reg ## _ ## field((idx))) + +#else + +# define __REG(x) io_p2v(x) +# define __REG2(x, y) io_p2v((x) + 4 * (y)) + +#endif + +#endif /* ifndef __ASM_ARCH_HARDWARE_H */ |