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f0f35fdac1
This reverts commit d7f21940bc.
Winbond W25Q256FV and W25Q256JV both uses 0xef4019 as JEDEC ID,
but only the latter has proper 4B_OPCODES support.
W25Q256FV has all 4B read instructions but it lacks a 4B page program
instruction, causing the entire flash to be read-only.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
43 lines
1.8 KiB
Diff
43 lines
1.8 KiB
Diff
From patchwork Thu Feb 6 17:19:41 2020
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Content-Type: text/plain; charset="utf-8"
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MIME-Version: 1.0
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Content-Transfer-Encoding: 7bit
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X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
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X-Patchwork-Id: 1234465
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Date: Thu, 6 Feb 2020 19:19:41 +0200
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From: Daniel Golle <daniel@makrotopia.org>
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To: linux-mtd@lists.infradead.org
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Subject: [PATCH v2] mtd: spi-nor: Add support for xt25f128b chip
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Message-ID: <20200206171941.GA2398@makrotopia.org>
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MIME-Version: 1.0
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Content-Disposition: inline
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List-Subscribe: <http://lists.infradead.org/mailman/listinfo/linux-mtd>,
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<mailto:linux-mtd-request@lists.infradead.org?subject=subscribe>
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Cc: Eitan Cohen <eitan@neot-semadar.com>, Piotr Dymacz <pepe2k@gmail.com>,
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Tudor Ambarus <tudor.ambarus@microchip.com>
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Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org>
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Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org
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Add XT25F128B made by XTX Technology (Shenzhen) Limited.
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This chip supports dual and quad read and uniform 4K-byte erase.
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Verified on Teltonika RUT955 which comes with XT25F128B in recent
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versions of the device.
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Signed-off-by: Daniel Golle <daniel@makrotopia.org>
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---
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drivers/mtd/spi-nor/spi-nor.c | 4 ++++
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1 file changed, 4 insertions(+)
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--- a/drivers/mtd/spi-nor/spi-nor.c
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+++ b/drivers/mtd/spi-nor/spi-nor.c
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@@ -2504,6 +2504,9 @@ static const struct flash_info spi_nor_i
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/* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */
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{ "XM25QH64A", INFO(0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
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{ "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
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+
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+ /* XTX Technology (Shenzhen) Limited */
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+ { "xt25f128b", INFO(0x0B4018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
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{ },
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};
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