diff options
| -rw-r--r-- | board/emulation/qemu-arm/qemu-arm.c | 45 | ||||
| -rw-r--r-- | include/configs/qemu-arm.h | 1 |
2 files changed, 46 insertions, 0 deletions
diff --git a/board/emulation/qemu-arm/qemu-arm.c b/board/emulation/qemu-arm/qemu-arm.c index 1b0d543b93..f18f2ed7da 100644 --- a/board/emulation/qemu-arm/qemu-arm.c +++ b/board/emulation/qemu-arm/qemu-arm.c @@ -142,3 +142,48 @@ efi_status_t platform_get_rng_device(struct udevice **dev) return EFI_SUCCESS; } #endif /* CONFIG_EFI_RNG_PROTOCOL */ + +#ifdef CONFIG_ARM64 +#define __W "w" +#else +#define __W +#endif + +u8 flash_read8(void *addr) +{ + u8 ret; + + asm("ldrb %" __W "0, %1" : "=r"(ret) : "m"(*(u8 *)addr)); + return ret; +} + +u16 flash_read16(void *addr) +{ + u16 ret; + + asm("ldrh %" __W "0, %1" : "=r"(ret) : "m"(*(u16 *)addr)); + return ret; +} + +u32 flash_read32(void *addr) +{ + u32 ret; + + asm("ldr %" __W "0, %1" : "=r"(ret) : "m"(*(u32 *)addr)); + return ret; +} + +void flash_write8(u8 value, void *addr) +{ + asm("strb %" __W "1, %0" : "=m"(*(u8 *)addr) : "r"(value)); +} + +void flash_write16(u16 value, void *addr) +{ + asm("strh %" __W "1, %0" : "=m"(*(u16 *)addr) : "r"(value)); +} + +void flash_write32(u32 value, void *addr) +{ + asm("str %" __W "1, %0" : "=m"(*(u32 *)addr) : "r"(value)); +} diff --git a/include/configs/qemu-arm.h b/include/configs/qemu-arm.h index 1ef75a8783..bc8b7c5c12 100644 --- a/include/configs/qemu-arm.h +++ b/include/configs/qemu-arm.h @@ -53,5 +53,6 @@ #define CONFIG_SYS_MAX_FLASH_BANKS 2 #endif #define CONFIG_SYS_MAX_FLASH_SECT 256 /* Sector: 256K, Bank: 64M */ +#define CONFIG_CFI_FLASH_USE_WEAK_ACCESSORS #endif /* __CONFIG_H */ |