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From: <Tudor.Ambarus@microchip.com>
To: <js07.lee@samsung.com>, <michael@walle.cc>, <vigneshr@ti.com>
Cc: linux-mtd@lists.infradead.org, Tudor.Ambarus@microchip.com
Subject: [PATCH v3 5/5] mtd: spi-nor: Enable locking for n25q512ax3/n25q512a
Date: Mon, 23 Mar 2020 09:24:36 +0000	[thread overview]
Message-ID: <20200323092430.1466234-7-tudor.ambarus@microchip.com> (raw)
In-Reply-To: <20200323092430.1466234-1-tudor.ambarus@microchip.com>

From: Jungseung Lee <js07.lee@samsung.com>

Some Micron models are known to have lock/unlock support,
and that also support 4bit block protection (BP0-3).

This patch support lock/unlock feature on the flashes.
Tested on n25q512ax3. The other is modified following the datasheet.

Signed-off-by: Jungseung Lee <js07.lee@samsung.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
---
 drivers/mtd/spi-nor/micron-st.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/spi-nor/micron-st.c b/drivers/mtd/spi-nor/micron-st.c
index 3874a62d8b47..6c034b9718e2 100644
--- a/drivers/mtd/spi-nor/micron-st.c
+++ b/drivers/mtd/spi-nor/micron-st.c
@@ -47,12 +47,16 @@ static const struct flash_info st_parts[] = {
 			       SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
 			       SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 	{ "n25q512ax3",  INFO(0x20ba20, 0, 64 * 1024, 1024,
-			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
+			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
+			      SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB |
+			      SPI_NOR_4BIT_BP | SPI_NOR_BP3_SR_BIT6) },
 	{ "mt25qu512a",  INFO6(0x20bb20, 0x104400, 64 * 1024, 1024,
 			       SECT_4K | USE_FSR | SPI_NOR_DUAL_READ |
 			       SPI_NOR_QUAD_READ | SPI_NOR_4B_OPCODES) },
 	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024,
-			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ) },
+			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
+			      SPI_NOR_HAS_LOCK | SPI_NOR_HAS_TB |
+			      SPI_NOR_4BIT_BP | SPI_NOR_BP3_SR_BIT6) },
 	{ "n25q00",      INFO(0x20ba21, 0, 64 * 1024, 2048,
 			      SECT_4K | USE_FSR | SPI_NOR_QUAD_READ |
 			      NO_CHIP_ERASE) },
-- 
2.23.0

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      parent reply	other threads:[~2020-03-23  9:25 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-03-23  9:24 [PATCH v3 0/5] mtd: spi-nor: Add SR 4bit block protection support Tudor.Ambarus
2020-03-23  9:24 ` [PATCH v3 2/5] mtd: spi-nor: Set all BP bits to one when lock_len == mtd->size Tudor.Ambarus
2020-03-23 14:08   ` Jungseung Lee
2020-03-23 18:28   ` Michael Walle
2020-03-23  9:24 ` [PATCH v3 1/5] mtd: spi-nor: Fix gap in SR block protection locking Tudor.Ambarus
2020-03-23 18:27   ` Michael Walle
2020-03-23 19:20     ` Tudor.Ambarus
2020-03-23 19:54       ` Michael Walle
2020-03-23 20:26         ` Tudor.Ambarus
2020-03-23 21:14           ` Michael Walle
2020-03-23 21:30             ` Tudor.Ambarus
2020-03-23 21:33               ` Tudor.Ambarus
2020-03-23 22:35               ` Michael Walle
2020-03-24  5:37                 ` Tudor.Ambarus
2020-03-24  3:52   ` Jungseung Lee
2020-03-25  9:44   ` Tudor.Ambarus
2020-03-23  9:24 ` [PATCH v3 3/5] mtd: spi-nor: Add new formula for SR block protection handling Tudor.Ambarus
     [not found]   ` <000001d600ff$063a8fd0$12afaf70$@samsung.com>
2020-03-23 13:32     ` Jungseung Lee
2020-03-23  9:24 ` [PATCH v3 4/5] mtd: spi-nor: Add 4bit SR block protection support Tudor.Ambarus
2020-03-23  9:46   ` Tudor.Ambarus
2020-03-23  9:24 ` [PATCH v3 4/5] mtd: spi-nor: Add SR 4bit " Tudor.Ambarus
2020-03-23 12:43   ` Jungseung Lee
2020-03-23 12:55     ` Tudor.Ambarus
2020-03-23 13:16       ` Jungseung Lee
2020-03-23 18:33   ` Michael Walle
2020-03-23 18:51     ` Tudor.Ambarus
2020-03-23  9:24 ` Tudor.Ambarus [this message]

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