[PATCH 2/2] mtd: spinand: esmt: Extend IDs to 5 bytes

[Ezra Buehler]

From: Ezra Buehler <ezra.buehler@xxxxxxxxxxxxxxxxxx>

According to the datasheets, the ESMT chips in question will return a 5
byte long identification code where the last 3 bytes are the JEDEC
continuation codes (7Fh). Although, I would have expected 4 continuation
codes as Powerchip Semiconductor (C8h, corresponding to the parameter
page data) is located in bank 5 of the JEDEC database.

By matching the full 5 bytes we can avoid clashes with GigaDevice NAND
flashes.

This fix allows the MT7688-based GARDENA smart Gateway to boot again.

Fixes: aa08bf187f32 ("mtd: spinand: esmt: add support for F50D2G41KA")
Signed-off-by: Ezra Buehler <ezra.buehler@xxxxxxxxxxxxxxxxxx>
---
 drivers/mtd/nand/spi/esmt.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/spi/esmt.c b/drivers/mtd/nand/spi/esmt.c
index 31c439a557b1..4597a82de23a 100644
--- a/drivers/mtd/nand/spi/esmt.c
+++ b/drivers/mtd/nand/spi/esmt.c
@@ -104,7 +104,8 @@ static const struct mtd_ooblayout_ops f50l1g41lb_ooblayout = {
 
 static const struct spinand_info esmt_c8_spinand_table[] = {
 	SPINAND_INFO("F50L1G41LB",
-		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01),
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x01, 0x7f,
+				0x7f, 0x7f),
 		     NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(1, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
@@ -113,7 +114,8 @@ static const struct spinand_info esmt_c8_spinand_table[] = {
 		     0,
 		     SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)),
 	SPINAND_INFO("F50D1G41LB",
-		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11),
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x11, 0x7f,
+				0x7f, 0x7f),
 		     NAND_MEMORG(1, 2048, 64, 64, 1024, 20, 1, 1, 1),
 		     NAND_ECCREQ(1, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
@@ -122,7 +124,8 @@ static const struct spinand_info esmt_c8_spinand_table[] = {
 		     0,
 		     SPINAND_ECCINFO(&f50l1g41lb_ooblayout, NULL)),
 	SPINAND_INFO("F50D2G41KA",
-		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51),
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_ADDR, 0x51, 0x7f,
+				0x7f, 0x7f),
 		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
 		     NAND_ECCREQ(8, 512),
 		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants,
-- 
2.43.0