foboot/sw/include/hw/common.h
Sean Cross 84d4b40897 foboot: move software stuff to sw directory
Signed-off-by: Sean Cross <sean@xobs.io>
2019-03-05 08:54:51 +08:00

53 lines
1.0 KiB
C

#ifndef __HW_COMMON_H
#define __HW_COMMON_H
#include <stdint.h>
/* To overwrite CSR accessors, define extern, non-inlined versions
* of csr_read[bwl]() and csr_write[bwl](), and define
* CSR_ACCESSORS_DEFINED.
*/
#ifndef CSR_ACCESSORS_DEFINED
#define CSR_ACCESSORS_DEFINED
#ifdef __ASSEMBLER__
#define MMPTR(x) x
#else /* ! __ASSEMBLER__ */
#define MMPTR(x) (*((volatile unsigned int *)(x)))
static inline void csr_writeb(uint8_t value, uint32_t addr)
{
*((volatile uint8_t *)addr) = value;
}
static inline uint8_t csr_readb(uint32_t addr)
{
return *(volatile uint8_t *)addr;
}
static inline void csr_writew(uint16_t value, uint32_t addr)
{
*((volatile uint16_t *)addr) = value;
}
static inline uint16_t csr_readw(uint32_t addr)
{
return *(volatile uint16_t *)addr;
}
static inline void csr_writel(uint32_t value, uint32_t addr)
{
*((volatile uint32_t *)addr) = value;
}
static inline uint32_t csr_readl(uint32_t addr)
{
return *(volatile uint32_t *)addr;
}
#endif /* ! __ASSEMBLER__ */
#endif /* ! CSR_ACCESSORS_DEFINED */
#endif /* __HW_COMMON_H */