diff options
| author | Jagan Teki <jagan@amarulasolutions.com> | 2020-05-13 18:16:39 +0530 |
|---|---|---|
| committer | Jagan Teki <jagan@amarulasolutions.com> | 2020-06-01 17:55:24 +0530 |
| commit | f12f96cfaf53d47aa58eb640744542446aac44dd (patch) | |
| tree | e070bd9a91c4b50f9a509ead487315c6cfbf9616 /include/spi_flash.h | |
| parent | 3ee152b965a13c43f9251d40e4c49486c71e5dac (diff) | |
| download | u-boot-f12f96cfaf53d47aa58eb640744542446aac44dd.tar.gz | |
sf: Drop spl_flash_get_sw_write_prot
The get_sw_write_prot API is used to get the write-protected
bits of flash by reading the status register and other wards
it's API for reading register bits.
1) This kind of requirement can be achieved using existing
flash operations and flash locking API calls instead of
making a separate flash API.
2) Technically there is no real hardware user for this API to
use in the source tree.
3) Having a flash operations API for simple register read bits
also make difficult to extend the flash operations.
4) Instead of touching generic code, it is possible to have
this functionality inside spinor operations in the form of
flash hooks or fixups for associated flash chips.
Considering all these points, this patch drops the get_sw_write_prot
and associated code bases.
Cc: Simon Glass <sjg@chromium.org>
Cc: Vignesh R <vigneshr@ti.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Diffstat (limited to 'include/spi_flash.h')
| -rw-r--r-- | include/spi_flash.h | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/include/spi_flash.h b/include/spi_flash.h index 0b23f57a71..d9b2af856c 100644 --- a/include/spi_flash.h +++ b/include/spi_flash.h @@ -34,19 +34,6 @@ 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 */ @@ -89,20 +76,6 @@ 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 |