diff options
Diffstat (limited to 'payloads/libpayload')
| -rw-r--r-- | payloads/libpayload/include/armv7/arch/io.h | 46 |
1 files changed, 40 insertions, 6 deletions
diff --git a/payloads/libpayload/include/armv7/arch/io.h b/payloads/libpayload/include/armv7/arch/io.h index 807dc1d2fb..8948e133ef 100644 --- a/payloads/libpayload/include/armv7/arch/io.h +++ b/payloads/libpayload/include/armv7/arch/io.h @@ -31,12 +31,46 @@ #ifndef _ARCH_IO_H #define _ARCH_IO_H -#define readb(_a) (*(volatile unsigned char *) (_a)) -#define readw(_a) (*(volatile unsigned short *) (_a)) -#define readl(_a) (*(volatile unsigned int *) (_a)) +#include <stdint.h> +#include <arch/cache.h> -#define writeb(_v, _a) (*(volatile unsigned char *) (_a) = (_v)) -#define writew(_v, _a) (*(volatile unsigned short *) (_a) = (_v)) -#define writel(_v, _a) (*(volatile unsigned int *) (_a) = (_v)) +static inline uint8_t readb(volatile void *_a) +{ + dmb(); + return *(volatile uint8_t *)_a; +} + +static inline uint16_t readw(volatile void *_a) +{ + dmb(); + return *(volatile uint16_t *)_a; +} + +static inline uint32_t readl(volatile void *_a) +{ + dmb(); + return *(volatile uint32_t *)_a; +} + +static inline void writeb(uint8_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint8_t *)_a = _v; + dmb(); +} + +static inline void writew(uint16_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint16_t *)_a = _v; + dmb(); +} + +static inline void writel(uint32_t _v, volatile void *_a) +{ + dmb(); + *(volatile uint32_t *)_a = _v; + dmb(); +} #endif |