90 lines
3.0 KiB
Diff
90 lines
3.0 KiB
Diff
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Andreas Rammhold <andreas@rammhold.de>
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Date: Thu, 28 Jan 2021 09:43:36 +0000
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Subject: spi-nor: add support for XT25F128B
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This adds support for the XT25F128B as found on the RockPi4b SBC.
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Signed-off-by: Andreas Rammhold <andreas@rammhold.de>
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---
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This continues the efforts done in [1] & [2] that went stale. I've
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tested this patch on my RockPi4b which only has the xt25f128b (and not
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the xt25f32b as also propsed in [2]). I have tried to obtain a copy of
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the datasheets but was unable to find them. Not sure whre you would get
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them.
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While [1] was already for the new spi-nor layout it was missing the bits
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in the core.{c,h} files.
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[1]: https://patchwork.ozlabs.org/project/linux-mtd/patch/CAMgqO2y9MYDj6antOaWLBRKU8vGEwqCB-Y1TkXTSWsmsed+W6A@mail.gmail.com/
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[2]: https://patchwork.ozlabs.org/project/linux-mtd/patch/20200206171941.GA2398@makrotopia.org/
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---
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drivers/mtd/spi-nor/Makefile | 1 +
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drivers/mtd/spi-nor/core.c | 1 +
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drivers/mtd/spi-nor/core.h | 1 +
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drivers/mtd/spi-nor/xtx.c | 16 ++++++++++
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4 files changed, 19 insertions(+)
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diff --git a/drivers/mtd/spi-nor/Makefile b/drivers/mtd/spi-nor/Makefile
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index e347b435a038..8992c592a896 100644
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--- a/drivers/mtd/spi-nor/Makefile
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+++ b/drivers/mtd/spi-nor/Makefile
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@@ -17,6 +17,7 @@ spi-nor-objs += sst.o
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spi-nor-objs += winbond.o
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spi-nor-objs += xilinx.o
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spi-nor-objs += xmc.o
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+spi-nor-objs += xtx.o
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spi-nor-$(CONFIG_DEBUG_FS) += debugfs.o
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obj-$(CONFIG_MTD_SPI_NOR) += spi-nor.o
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diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
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index 2e0655c0b606..fafffe64b9d7 100644
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--- a/drivers/mtd/spi-nor/core.c
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+++ b/drivers/mtd/spi-nor/core.c
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@@ -1632,6 +1632,7 @@ static const struct spi_nor_manufacturer *manufacturers[] = {
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&spi_nor_winbond,
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&spi_nor_xilinx,
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&spi_nor_xmc,
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+ &spi_nor_xtx,
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};
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static const struct flash_info *spi_nor_match_id(struct spi_nor *nor,
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diff --git a/drivers/mtd/spi-nor/core.h b/drivers/mtd/spi-nor/core.h
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index 85b0cf254e97..e79188ca9955 100644
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--- a/drivers/mtd/spi-nor/core.h
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+++ b/drivers/mtd/spi-nor/core.h
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@@ -627,6 +627,7 @@ extern const struct spi_nor_manufacturer spi_nor_sst;
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extern const struct spi_nor_manufacturer spi_nor_winbond;
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extern const struct spi_nor_manufacturer spi_nor_xilinx;
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extern const struct spi_nor_manufacturer spi_nor_xmc;
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+extern const struct spi_nor_manufacturer spi_nor_xtx;
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extern const struct attribute_group *spi_nor_sysfs_groups[];
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diff --git a/drivers/mtd/spi-nor/xtx.c b/drivers/mtd/spi-nor/xtx.c
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new file mode 100644
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index 000000000000..73568854cf1e
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--- /dev/null
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+++ b/drivers/mtd/spi-nor/xtx.c
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@@ -0,0 +1,16 @@
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+// SPDX-License-Identifier: GPL-2.0
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+
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+#include <linux/mtd/spi-nor.h>
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+
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+#include "core.h"
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+
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+static const struct flash_info xtx_parts[] = {
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+ /* XTX (Shenzhen Xin Tian Xia Tech) */
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+ { "xt25f128b", INFO(0x0b4018, 0, 64 * 1024, 256) },
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+};
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+
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+const struct spi_nor_manufacturer spi_nor_xtx = {
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+ .name = "xtx",
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+ .parts = xtx_parts,
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+ .nparts = ARRAY_SIZE(xtx_parts),
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+};
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--
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Armbian
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