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-rw-r--r--target/linux/layerscape/patches-4.4/1100-mtd-spi_nor-Disable-Micron-flash-HW-protection.patch41
1 files changed, 0 insertions, 41 deletions
diff --git a/target/linux/layerscape/patches-4.4/1100-mtd-spi_nor-Disable-Micron-flash-HW-protection.patch b/target/linux/layerscape/patches-4.4/1100-mtd-spi_nor-Disable-Micron-flash-HW-protection.patch
deleted file mode 100644
index 47fef5cd0c..0000000000
--- a/target/linux/layerscape/patches-4.4/1100-mtd-spi_nor-Disable-Micron-flash-HW-protection.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From e892dea7229d56b75c46a76b9039f9e179584a91 Mon Sep 17 00:00:00 2001
-From: Yunhui Cui <B56489@freescale.com>
-Date: Mon, 1 Feb 2016 18:48:49 +0800
-Subject: [PATCH 100/113] mtd:spi_nor: Disable Micron flash HW protection
-
-For Micron family ,The status register write enable/disable bit,
-provides hardware data protection for the device.
-When the enable/disable bit is set to 1, the status register
-nonvolatile bits become read-only and the WRITE STATUS REGISTER
-operation will not execute.
-
-Signed-off-by: Yunhui Cui <B56489@freescale.com>
----
- drivers/mtd/spi-nor/spi-nor.c | 9 +++++++++
- 1 file changed, 9 insertions(+)
-
---- a/drivers/mtd/spi-nor/spi-nor.c
-+++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -39,6 +39,7 @@
-
- #define SPI_NOR_MAX_ID_LEN 6
- #define SPI_NOR_MAX_ADDR_WIDTH 4
-+#define SPI_NOR_MICRON_WRITE_ENABLE 0x7f
-
- struct flash_info {
- char *name;
-@@ -1246,6 +1247,14 @@ int spi_nor_scan(struct spi_nor *nor, co
- if (ret)
- return ret;
-
-+ if (JEDEC_MFR(info) == SNOR_MFR_MICRON) {
-+ ret = read_sr(nor);
-+ ret &= SPI_NOR_MICRON_WRITE_ENABLE;
-+
-+ write_enable(nor);
-+ write_sr(nor, ret);
-+ }
-+
- if (!mtd->name)
- mtd->name = dev_name(dev);
- mtd->priv = nor;