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https://github.com/antonblanchard/microwatt.git
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0fa14f6dec
That's how Linux expects it. This also simplifies the register access implementation since the bit fields now align properly regardless of the access size. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
32 lines
562 B
C
32 lines
562 B
C
#include <stdint.h>
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#include "microwatt_soc.h"
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#include "io.h"
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#define XICS_XIRR_POLL 0x0
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#define XICS_XIRR 0x4
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#define XICS_RESV 0x8
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#define XICS_MFRR 0xC
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#define bswap32(x) (uint32_t)__builtin_bswap32((uint32_t)(x))
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uint8_t xics_read8(int offset)
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{
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return readb(XICS_BASE + offset);
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}
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void xics_write8(int offset, uint8_t val)
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{
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writeb(val, XICS_BASE + offset);
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}
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uint32_t xics_read32(int offset)
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{
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return bswap32(readl(XICS_BASE + offset));
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}
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void xics_write32(int offset, uint32_t val)
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{
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writel(bswap32(val), XICS_BASE + offset);
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}
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