linux-kernel - [PATCH] mtd: spi-nor: let SFDP determine the flash and sector size

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Message-Id: <20230722045901.9872-1-tudor.ambarus@linaro.org>
Date:   Sat, 22 Jul 2023 07:59:01 +0300
From:   Tudor Ambarus <tudor.ambarus@...aro.org>
To:     tkuw584924@...il.com, takahiro.kuwano@...ineon.com,
        michael@...le.cc, pratyush@...nel.org
Cc:     linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org,
        bacem.daassi@...ineon.com, miquel.raynal@...tlin.com,
        richard@....at, Tudor Ambarus <tudor.ambarus@...aro.org>
Subject: [PATCH] mtd: spi-nor: let SFDP determine the flash and sector size

sector_size is used to determine the flash size and the erase size in
case of uniform erase. n_sectors is used to determine the flash_size.
But the flash size and the erase sizes are determined when parsing SFDP,
let SFDP determine them.

Signed-off-by: Tudor Ambarus <tudor.ambarus@...aro.org>
---
 drivers/mtd/spi-nor/spansion.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/spi-nor/spansion.c b/drivers/mtd/spi-nor/spansion.c
index 6b199112a533..5f2a76969c76 100644
--- a/drivers/mtd/spi-nor/spansion.c
+++ b/drivers/mtd/spi-nor/spansion.c
@@ -878,11 +878,11 @@ static const struct flash_info spansion_nor_parts[] = {
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s25fs256t_fixups },
-	{ "s25hl512t",  INFO6(0x342a1a, 0x0f0390, 256 * 1024, 256)
+	{ "s25hl512t",  INFO6(0x342a1a, 0x0f0390, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s25hx_t_fixups },
-	{ "s25hl01gt",  INFO6(0x342a1b, 0x0f0390, 256 * 1024, 512)
+	{ "s25hl01gt",  INFO6(0x342a1b, 0x0f0390, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s25hx_t_fixups },
@@ -891,11 +891,11 @@ static const struct flash_info spansion_nor_parts[] = {
 		MFR_FLAGS(USE_CLPEF)
 		FLAGS(NO_CHIP_ERASE)
 		.fixups = &s25hx_t_fixups },
-	{ "s25hs512t",  INFO6(0x342b1a, 0x0f0390, 256 * 1024, 256)
+	{ "s25hs512t",  INFO6(0x342b1a, 0x0f0390, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s25hx_t_fixups },
-	{ "s25hs01gt",  INFO6(0x342b1b, 0x0f0390, 256 * 1024, 512)
+	{ "s25hs01gt",  INFO6(0x342b1b, 0x0f0390, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s25hx_t_fixups },
@@ -906,22 +906,22 @@ static const struct flash_info spansion_nor_parts[] = {
 		.fixups = &s25hx_t_fixups },
 	{ "cy15x104q",  INFO6(0x042cc2, 0x7f7f7f, 512 * 1024, 1)
 		FLAGS(SPI_NOR_NO_ERASE) },
-	{ "s28hl512t",   INFO(0x345a1a,      0, 256 * 1024, 256)
+	{ "s28hl512t",   INFO(0x345a1a,      0, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s28hx_t_fixups,
 	},
-	{ "s28hl01gt",   INFO(0x345a1b,      0, 256 * 1024, 512)
+	{ "s28hl01gt",   INFO(0x345a1b,      0, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s28hx_t_fixups,
 	},
-	{ "s28hs512t",   INFO(0x345b1a,      0, 256 * 1024, 256)
+	{ "s28hs512t",   INFO(0x345b1a,      0, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s28hx_t_fixups,
 	},
-	{ "s28hs01gt",   INFO(0x345b1b,      0, 256 * 1024, 512)
+	{ "s28hs01gt",   INFO(0x345b1b,      0, 0, 0)
 		PARSE_SFDP
 		MFR_FLAGS(USE_CLPEF)
 		.fixups = &s28hx_t_fixups,
-- 
2.34.1