Blackfin: unify MMR helpers
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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@ -25,62 +25,30 @@
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# define NOP_PAD_ANOMALY_05000198
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#endif
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#define bfin_read8(addr) ({ \
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uint32_t __v; \
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#define _bfin_readX(addr, size, asm_size, asm_ext) ({ \
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u32 __v; \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"%0 = b[%1] (z);" \
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"%0 = " #asm_size "[%1]" #asm_ext ";" \
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: "=d" (__v) \
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: "a" (addr) \
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); \
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__v; })
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#define bfin_read16(addr) ({ \
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uint32_t __v; \
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#define _bfin_writeX(addr, val, size, asm_size) \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"%0 = w[%1] (z);" \
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: "=d" (__v) \
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: "a" (addr) \
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); \
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__v; })
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#define bfin_read32(addr) ({ \
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uint32_t __v; \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"%0 = [%1];" \
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: "=d" (__v) \
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: "a" (addr) \
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); \
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__v; })
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#define bfin_write8(addr, val) \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"b[%0] = %1;" \
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#asm_size "[%0] = %1;" \
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: \
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: "a" (addr), "d" ((uint8_t)(val)) \
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: "a" (addr), "d" ((u##size)(val)) \
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: "memory" \
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)
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#define bfin_write16(addr, val) \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"w[%0] = %1;" \
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: \
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: "a" (addr), "d" ((uint16_t)(val)) \
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: "memory" \
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)
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#define bfin_write32(addr, val) \
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__asm__ __volatile__( \
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NOP_PAD_ANOMALY_05000198 \
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"[%0] = %1;" \
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: \
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: "a" (addr), "d" (val) \
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: "memory" \
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)
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#define bfin_read8(addr) _bfin_readX(addr, 8, b, (z))
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#define bfin_read16(addr) _bfin_readX(addr, 16, w, (z))
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#define bfin_read32(addr) _bfin_readX(addr, 32, , )
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#define bfin_write8(addr, val) _bfin_writeX(addr, val, 8, b)
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#define bfin_write16(addr, val) _bfin_writeX(addr, val, 16, w)
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#define bfin_write32(addr, val) _bfin_writeX(addr, val, 32, )
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#endif /* __ASSEMBLY__ */
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