From 8bf2ce6ea4ee840b70f55a27f80e1cd308051b13 Mon Sep 17 00:00:00 2001 From: Nick Hainke Date: Mon, 27 Dec 2021 00:38:13 +0100 Subject: [PATCH 1/2] mtd: spi-nor: locking support for MX25L6405D Macronix MX25L6405D supports locking with four block-protection bits. Currently, the driver only sets three bits. If the bootloader does not sustain the flash chip in an unlocked state, the flash might be non-writeable. Add the corresponding flag to enable locking support with four bits in the status register. Tested on Nanostation M2 XM. Similar to commit 7ea40b54e83b ("mtd: spi-nor: enable locking support for MX25L12805D") Signed-off-by: David Bauer Signed-off-by: Nick Hainke --- drivers/mtd/spi-nor/macronix.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) --- a/drivers/mtd/spi-nor/macronix.c +++ b/drivers/mtd/spi-nor/macronix.c @@ -48,6 +48,7 @@ static const struct flash_info macronix_ { "mx25l3255e", INFO(0xc29e16, 0, 64 * 1024, 64) NO_SFDP_FLAGS(SECT_4K) }, { "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128) + FLAGS(SPI_NOR_HAS_LOCK | SPI_NOR_4BIT_BP) NO_SFDP_FLAGS(SECT_4K) }, { "mx25u2033e", INFO(0xc22532, 0, 64 * 1024, 4) NO_SFDP_FLAGS(SECT_4K) },