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56 lines
1.0 KiB
C
56 lines
1.0 KiB
C
// swizzlin
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#ifndef __SYSTEM_H
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#define __SYSTEM_H
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#include <stdint.h>
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/*
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void flush_l2_cache(void) {
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}
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*/
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static void flush_cpu_icache(void);
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static void flush_cpu_dcache(void);
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static void flush_cpu_icache(void) {
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}
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static void flush_cpu_dcache(void) {
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}
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#define CSR_ACCESSORS_DEFINED
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#ifdef __ASSEMBLER__
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#define MMPTR(x) x
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#else /* ! __ASSEMBLER__ */
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#include <generated/soc.h>
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#if !defined(CONFIG_CSR_DATA_WIDTH)
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#error CSR_DATA_WIDTH MUST be set before including this file!
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#endif
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#define MMPTR(a) (*((volatile uint32_t *)(a)))
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static inline unsigned long swizzle(unsigned long v);
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static inline unsigned long swizzle(unsigned long v) {
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return ((v & 0x000000FF) << 24) | ((v & 0x0000FF00) << 8) | ((v & 0x00FF0000) >> 8) | ((v & 0xFF000000) >> 24);
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//return v;
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}
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static inline void csr_write_simple(unsigned long v, unsigned long a)
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{
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//MMPTR(a) = v;
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MMPTR(a) = swizzle(v);
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}
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static inline unsigned long csr_read_simple(unsigned long a)
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{
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//return MMPTR(a);
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return swizzle(MMPTR(a));
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}
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#endif /* ! __ASSEMBLER__ */
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#endif /* __SYSTEM_H */
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