diff options
Diffstat (limited to 'include/spi_flash.h')
| -rw-r--r-- | include/spi_flash.h | 31 |
1 files changed, 30 insertions, 1 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h index 85cae32cc7..3d747c925b 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -35,6 +35,19 @@ struct dm_spi_flash_ops { int (*write)(struct udevice *dev, u32 offset, size_t len, const void *buf); int (*erase)(struct udevice *dev, u32 offset, size_t len); + /** + * get_sw_write_prot() - Check state of software write-protect feature + * + * SPI flash chips can lock a region of the flash defined by a + * 'protected area'. This function checks if this protected area is + * defined. + * + * @dev: SPI flash device + * @return 0 if no region is write-protected, 1 if a region is + * write-protected, -ENOSYS if the driver does not implement this, + * other -ve value on error + */ + int (*get_sw_write_prot)(struct udevice *dev); }; /* Access the serial operations for a device */ @@ -77,6 +90,20 @@ int spi_flash_write_dm(struct udevice *dev, u32 offset, size_t len, int spi_flash_erase_dm(struct udevice *dev, u32 offset, size_t len); /** + * spl_flash_get_sw_write_prot() - Check state of software write-protect feature + * + * SPI flash chips can lock a region of the flash defined by a + * 'protected area'. This function checks if this protected area is + * defined. + * + * @dev: SPI flash device + * @return 0 if no region is write-protected, 1 if a region is + * write-protected, -ENOSYS if the driver does not implement this, + * other -ve value on error + */ +int spl_flash_get_sw_write_prot(struct udevice *dev); + +/** * spi_flash_std_probe() - Probe a SPI flash device * * This is the standard internal method for probing a SPI flash device to @@ -97,7 +124,9 @@ struct spi_flash *spi_flash_probe(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int spi_mode); /* Compatibility function - this is the old U-Boot API */ -void spi_flash_free(struct spi_flash *flash); +static inline void spi_flash_free(struct spi_flash *flash) +{ +} static inline int spi_flash_read(struct spi_flash *flash, u32 offset, size_t len, void *buf) |