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Diffstat (limited to 'src/drivers/spi/spi_flash.c')
-rw-r--r--src/drivers/spi/spi_flash.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/src/drivers/spi/spi_flash.c b/src/drivers/spi/spi_flash.c
index f2714791db..c4840886bb 100644
--- a/src/drivers/spi/spi_flash.c
+++ b/src/drivers/spi/spi_flash.c
@@ -432,6 +432,28 @@ int spi_flash_status(const struct spi_flash *flash, u8 *reg)
return -1;
}
+int spi_flash_is_write_protected(const struct spi_flash *flash,
+ const struct region *region)
+{
+ struct region flash_region = { 0 };
+
+ if (!flash || !region)
+ return -1;
+
+ flash_region.size = flash->size;
+
+ if (!region_is_subregion(&flash_region, region))
+ return -1;
+
+ if (!flash->ops->get_write_protection) {
+ printk(BIOS_WARNING, "SPI: Write-protection gathering not "
+ "implemented for this vendor.\n");
+ return 0;
+ }
+
+ return flash->ops->get_write_protection(flash, region);
+}
+
static uint32_t volatile_group_count CAR_GLOBAL;
int spi_flash_volatile_group_begin(const struct spi_flash *flash)