diff options
Diffstat (limited to 'include/spi_flash.h')
| -rw-r--r-- | include/spi_flash.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h index 4312d3d..0ae0062 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -54,6 +54,9 @@ struct spi_slave; * @write_cmd: Write cmd - page and quad program. * @dummy_byte: Dummy cycles for read operation. * @memory_map: Address of read-only SPI flash access + * @flash_lock: lock a region of the SPI Flash + * @flash_unlock: unlock a region of the SPI Flash + * @flash_is_locked: check if a region of the SPI Flash is completely locked * @read: Flash read ops: Read len bytes at offset into buf * Supported cmds: Fast Array Read * @write: Flash write ops: Write len bytes from buf into offset @@ -87,6 +90,10 @@ struct spi_flash { u8 dummy_byte; void *memory_map; + + int (*flash_lock)(struct spi_flash *flash, u32 ofs, size_t len); + int (*flash_unlock)(struct spi_flash *flash, u32 ofs, size_t len); + int (*flash_is_locked)(struct spi_flash *flash, u32 ofs, size_t len); #ifndef CONFIG_DM_SPI_FLASH /* * These are not strictly needed for driver model, but keep them here @@ -227,6 +234,18 @@ static inline int spi_flash_erase(struct spi_flash *flash, u32 offset, } #endif +static inline int spi_flash_protect(struct spi_flash *flash, u32 ofs, u32 len, + bool prot) +{ + if (!flash->flash_lock) + return -EOPNOTSUPP; + + if (prot) + return flash->flash_lock(flash, ofs, len); + else + return flash->flash_unlock(flash, ofs, len); +} + void spi_boot(void) __noreturn; void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst); |