Message ID | 1456988044-37061-4-git-send-email-B56489@freescale.com |
---|---|
State | Superseded |
Headers | show
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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" <linux-mtd-bounces@lists.infradead.org> Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org |
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index ed0c19c..917f814 100644 --- 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; @@ -1238,6 +1239,14 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, enum read_mode mode) write_sr(nor, 0); } + 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;