From 72151ad10f8dcc3c86084259b227a7d70cc79473 Mon Sep 17 00:00:00 2001 From: Takahiro Kuwano Date: Tue, 29 Jun 2021 15:01:02 +0900 Subject: mtd: spi-nor-core: Add Cypress manufacturer ID in set_4byte Cypress chips support SPINOR_OP_EN4B(B7h) to enable 4-byte addressing mode. Cypress chips support B8h to disable 4-byte addressing mode instead of SPINOR_OP_EX4B(E9h). This patch defines new opcode and updates set_4byte() to support enable/disable 4-byte addressing mode for Cypress chips. Signed-off-by: Takahiro Kuwano Reviewed-by: Jagan Teki --- include/linux/mtd/spi-nor.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/mtd/spi-nor.h b/include/linux/mtd/spi-nor.h index b9d66458a06..6df82bde942 100644 --- a/include/linux/mtd/spi-nor.h +++ b/include/linux/mtd/spi-nor.h @@ -123,6 +123,7 @@ #define SPINOR_OP_BRWR 0x17 /* Bank register write */ #define SPINOR_OP_BRRD 0x16 /* Bank register read */ #define SPINOR_OP_CLSR 0x30 /* Clear status register 1 */ +#define SPINOR_OP_EX4B_CYPRESS 0xB8 /* Exit 4-byte mode */ #define SPINOR_OP_RDAR 0x65 /* Read any register */ #define SPINOR_OP_WRAR 0x71 /* Write any register */ #define SPINOR_REG_ADDR_STR1V 0x00800000 -- cgit v1.2.3