From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 11 Feb 2021 12:05:47 +0000 (+0100)
Subject: mtd: nand: spi: Only one dummy byte in QUADIO
X-Git-Url: http://git.dujemihanovic.xyz/%22http:/www.sics.se/static/git-favicon.png?a=commitdiff_plain;h=12926f46fdf443144451416939074c688b2c43a4;p=u-boot.git

mtd: nand: spi: Only one dummy byte in QUADIO

The datasheet only lists one dummy byte in the 0xEB operation for the
following chips:
* GD5F1GQ4xExxG
* GD5F1GQ4xFxxG
* GD5F1GQ4UAYIG
* GD5F4GQ4UAYIG

Reto Schneider:
- Linux patch ported to U-Boot
- Checked for compatibility with GD5F1GQ4xBxxG
- Fixed operation code in original commit message (0xEH -> 0xEB)

Signed-off-by: Reto Schneider <reto.schneider@husqvarnagroup.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Acked-by: Jagan Teki <jagan@amarulasolutions.com>
---

diff --git a/drivers/mtd/nand/spi/gigadevice.c b/drivers/mtd/nand/spi/gigadevice.c
index 0b228dcb5b..5de0ebbb7b 100644
--- a/drivers/mtd/nand/spi/gigadevice.c
+++ b/drivers/mtd/nand/spi/gigadevice.c
@@ -20,7 +20,7 @@
 #define GD5FXGQ4XEXXG_REG_STATUS2		0xf0
 
 static SPINAND_OP_VARIANTS(read_cache_variants,
-		SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 2, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 1, NULL, 0),
 		SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
 		SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 1, NULL, 0),
 		SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),