openwrt-owl/target/linux/bcm53xx/patches-3.18/405-mtd-bcm53xxspiflash-try-using-JEDEC-as-one-of-method.patch

--- a/drivers/mtd/spi-nor/bcm53xxspiflash.c
+++ b/drivers/mtd/spi-nor/bcm53xxspiflash.c
@@ -173,7 +173,8 @@ static const struct spi_device_id *bcm53
 
 	/* TODO: Try more ID commands */
 
-	return ERR_PTR(-ENODEV);
+	/* Some chips used by Broadcom may actually support JEDEC */
+	return spi_nor_read_id(nor);
 
 found_name:
 //	id = spi_nor_match_id(name);
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -631,7 +631,7 @@ static const struct spi_device_id spi_no
 	{ },
 };
 
-static const struct spi_device_id *spi_nor_read_id(struct spi_nor *nor)
+const struct spi_device_id *spi_nor_read_id(struct spi_nor *nor)
 {
 	int			tmp;
 	u8			id[5];
@@ -662,6 +662,7 @@ static const struct spi_device_id *spi_n
 	dev_err(nor->dev, "unrecognized JEDEC id %06x\n", jedec);
 	return ERR_PTR(-ENODEV);
 }
+EXPORT_SYMBOL_GPL(spi_nor_read_id);
 
 static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
 			size_t *retlen, u_char *buf)
--- a/include/linux/mtd/spi-nor.h
+++ b/include/linux/mtd/spi-nor.h
@@ -188,6 +188,8 @@ struct spi_nor {
 	void *priv;
 };
 
+const struct spi_device_id *spi_nor_read_id(struct spi_nor *nor);
+
 /**
  * spi_nor_scan() - scan the SPI NOR
  * @nor:	the spi_nor structure