diff options
Diffstat (limited to 'boards/base/RaspberryPi/example-FreeRTOS/Drivers/mmio.h')
-rw-r--r-- | boards/base/RaspberryPi/example-FreeRTOS/Drivers/mmio.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/boards/base/RaspberryPi/example-FreeRTOS/Drivers/mmio.h b/boards/base/RaspberryPi/example-FreeRTOS/Drivers/mmio.h deleted file mode 100644 index 89bea700..00000000 --- a/boards/base/RaspberryPi/example-FreeRTOS/Drivers/mmio.h +++ /dev/null @@ -1,24 +0,0 @@ -/* mmio.h - access to MMIO registers */ - -#ifndef MMIO_H -#define MMIO_H - -#include <stdint.h> - -// write to MMIO register -static inline void mmio_write(uint32_t reg, uint32_t data) { - uint32_t *ptr = (uint32_t*)reg; - asm volatile("str %[data], [%[reg]]" - : : [reg]"r"(ptr), [data]"r"(data)); -} - -// read from MMIO register -static inline uint32_t mmio_read(uint32_t reg) { - uint32_t *ptr = (uint32_t*)reg; - uint32_t data; - asm volatile("ldr %[data], [%[reg]]" - : [data]"=r"(data) : [reg]"r"(ptr)); - return data; -} - -#endif // #ifndef MMIO_H |