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- /*
- * 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 */
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