[PATCH 5/5] mtd: spi-nor: spansion: Add S28HS02GT ID and fixups

[tkuw584924 at gmail.com]

From: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>

Infineon S28HS02GT is 2Gb, multi-chip package, Octal SPI Flash. This patch
adds ID table, fix params->n_dice value, and replace params->ready() with
MCP version.

Signed-off-by: Takahiro Kuwano <Takahiro.Kuwano at infineon.com>
---
 drivers/mtd/spi-nor/spansion.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index 8b8512402639..88dc849a63b3 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -720,6 +720,10 @@ static int s28hx_t_post_sfdp_fixup(struct spi_nor *nor)
 	 */
 	nor->params->rdsr_addr_nbytes = 4;
 
+	/* The 2 Gb parts duplicate info and advertise 4 dice instead of 2. */
+	if (nor->params->size == SZ_256M)
+		nor->params->n_dice = 2;
+
 	return cypress_nor_get_page_size(nor);
 }
 
@@ -738,8 +742,15 @@ static int s28hx_t_post_bfpt_fixup(struct spi_nor *nor,
 
 static void s28hx_t_late_init(struct spi_nor *nor)
 {
-	nor->params->octal_dtr_enable = cypress_nor_octal_dtr_enable;
+	struct spi_nor_flash_parameter *params = nor->params;
+
+	params->octal_dtr_enable = cypress_nor_octal_dtr_enable;
+
 	cypress_nor_ecc_init(nor);
+
+	/* Replace ready() with multi die version */
+	if (params->n_dice)
+		params->ready = cypress_nor_sr_ready_and_clear;
 }
 
 static const struct spi_nor_fixups s28hx_t_fixups = {
@@ -913,6 +924,11 @@ static const struct flash_info spansion_nor_parts[] = {
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s28hx_t_fixups,
 	},
+	{ "s28hs02gt",   INFO(0x345b1c,      0, 256 * 1024, 1024)
+		PARSE_SFDP
+		MFR_FLAGS(USE_CLPEF)
+		.fixups = &s28hx_t_fixups,
+	},
 };
 
 /**
-- 
2.34.1