17 lines
405 B
C
17 lines
405 B
C
#ifndef _ARM_IO_H_
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#define _ARM_IO_H_
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#ifndef __ASSEMBLY__
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#include <sys/types.h>
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/* Access memory-mapped I/O devices */
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#define mmio_read(a) (*(volatile u32_t *)(a))
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#define mmio_write(a,v) (*(volatile u32_t *)(a) = (v))
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#define mmio_set(a,v) mmio_write((a), mmio_read((a)) | (v))
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#define mmio_clear(a,v) mmio_write((a), mmio_read((a)) & ~(v))
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#endif /* __ASSEMBLY__ */
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#endif /* _ARM_IO_H_ */
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