openwrt/target/linux/generic/backport-5.15/420-v5.19-04-mtd-spinand-gigadevice-add-support-for-GD5F-2-4-GQ5x.patch

From 194ec04b3a9e7fa97d1fbef296410631bc3cf1c8 Mon Sep 17 00:00:00 2001
From: Chuanhong Guo <[email protected]>
Date: Sun, 20 Mar 2022 18:00:00 +0800
Subject: [PATCH 4/5] mtd: spinand: gigadevice: add support for GD5F{2,
 4}GQ5xExxG

Add support for:
 GD5F2GQ5{U,R}ExxG
 GD5F4GQ6{U,R}ExxG

These chips uses 4 dummy bytes for quad io and 2 dummy bytes for dual io.
Besides that and memory layout, they are identical to their 1G variant.

Signed-off-by: Chuanhong Guo <[email protected]>
Signed-off-by: Miquel Raynal <[email protected]>
Link: https://lore.kernel.org/linux-mtd/[email protected]
---
 drivers/mtd/nand/spi/gigadevice.c | 48 +++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

--- a/drivers/mtd/nand/spi/gigadevice.c
+++ b/drivers/mtd/nand/spi/gigadevice.c
@@ -47,6 +47,14 @@ static SPINAND_OP_VARIANTS(read_cache_va
 		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
 		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
 
+static SPINAND_OP_VARIANTS(read_cache_variants_2gq5,
+		SPINAND_PAGE_READ_FROM_CACHE_QUADIO_OP(0, 4, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_X4_OP(0, 1, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_DUALIO_OP(0, 2, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_X2_OP(0, 1, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_OP(true, 0, 1, NULL, 0),
+		SPINAND_PAGE_READ_FROM_CACHE_OP(false, 0, 1, NULL, 0));
+
 static SPINAND_OP_VARIANTS(write_cache_variants,
 		SPINAND_PROG_LOAD_X4(true, 0, NULL, 0),
 		SPINAND_PROG_LOAD(true, 0, NULL, 0));
@@ -393,6 +401,46 @@ static const struct spinand_info gigadev
 					      &write_cache_variants,
 					      &update_cache_variants),
 		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+				     gd5fxgq5xexxg_ecc_get_status)),
+	SPINAND_INFO("GD5F2GQ5UExxG",
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x52),
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(4, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5,
+					      &write_cache_variants,
+					      &update_cache_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+				     gd5fxgq5xexxg_ecc_get_status)),
+	SPINAND_INFO("GD5F2GQ5RExxG",
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x42),
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 1, 1),
+		     NAND_ECCREQ(4, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5,
+					      &write_cache_variants,
+					      &update_cache_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+				     gd5fxgq5xexxg_ecc_get_status)),
+	SPINAND_INFO("GD5F4GQ6UExxG",
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x55),
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 2, 1),
+		     NAND_ECCREQ(4, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5,
+					      &write_cache_variants,
+					      &update_cache_variants),
+		     SPINAND_HAS_QE_BIT,
+		     SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
+				     gd5fxgq5xexxg_ecc_get_status)),
+	SPINAND_INFO("GD5F4GQ6RExxG",
+		     SPINAND_ID(SPINAND_READID_METHOD_OPCODE_DUMMY, 0x45),
+		     NAND_MEMORG(1, 2048, 128, 64, 2048, 40, 1, 2, 1),
+		     NAND_ECCREQ(4, 512),
+		     SPINAND_INFO_OP_VARIANTS(&read_cache_variants_2gq5,
+					      &write_cache_variants,
+					      &update_cache_variants),
+		     SPINAND_HAS_QE_BIT,
 		     SPINAND_ECCINFO(&gd5fxgqx_variant2_ooblayout,
 				     gd5fxgq5xexxg_ecc_get_status)),
 };