norflash: Add nor_erase() to NOR driver
NOR memory only supports setting bits to 1. To clear a bit, set to zero,
the NOR memory needs to be erased.
Change-Id: Ia82eb15a5af9a6d4fc7e5ea2b58e6db87226b351
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
diff --git a/include/plat/arm/board/common/drivers/norflash.h b/include/plat/arm/board/common/drivers/norflash.h
index 4b66e42..5763b36 100644
--- a/include/plat/arm/board/common/drivers/norflash.h
+++ b/include/plat/arm/board/common/drivers/norflash.h
@@ -19,6 +19,7 @@
#define NOR_CMD_WORD_PROGRAM 0x40
#define NOR_CMD_BLOCK_ERASE 0x20
#define NOR_CMD_LOCK_UNLOCK 0x60
+#define NOR_CMD_BLOCK_ERASE_ACK 0xD0
/* Second bus cycle */
#define NOR_LOCK_BLOCK 0x01
@@ -39,6 +40,7 @@
int nor_word_program(uintptr_t base_addr, unsigned long data);
int nor_lock(uintptr_t base_addr);
int nor_unlock(uintptr_t base_addr);
+int nor_erase(uintptr_t base_addr);
#endif /* __NORFLASH_H_ */