kernel: Add support for Winbond w25q128jv SPI NOR flash

Newer batches of several Mikrotik boards contain this yet-unsupported
flash chip, for instance:

- rb941-2nd (hAP lite)
- rb952ui-5ac2nd (hAP ac lite)
- RBM33G

and probably other Mikrotik boards need this patch as well.

The patch was submitted upstream by Robert Marko: https://patchwork.ozlabs.org/patch/934181/

Closes: FS#1715
Signed-off-by: Baptiste Jonglez <git@bitsofnetworks.org>
Cc: Robert Marko <robimarko@gmail.com>
[Rebased + refreshed on current kernels]
Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/target/linux/layerscape/patches-4.9/401-mtd-spi-nor-support-layerscape.patch b/target/linux/layerscape/patches-4.9/401-mtd-spi-nor-support-layerscape.patch
index b6b6b92c3d..45f1bfce47 100644
--- a/target/linux/layerscape/patches-4.9/401-mtd-spi-nor-support-layerscape.patch
+++ b/target/linux/layerscape/patches-4.9/401-mtd-spi-nor-support-layerscape.patch
@@ -768,7 +768,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  	{ "w25q32", INFO(0xef4016, 0, 64 * 1024,  64, SECT_4K) },
  	{
  		"w25q32dw", INFO(0xef6016, 0, 64 * 1024,  64,
-@@ -1196,6 +1220,53 @@ static const struct flash_info *spi_nor_
+@@ -1201,6 +1225,53 @@ static const struct flash_info *spi_nor_
  		id[0], id[1], id[2]);
  	return ERR_PTR(-ENODEV);
  }
@@ -822,7 +822,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  
  static int spi_nor_read(struct mtd_info *mtd, loff_t from, size_t len,
  			size_t *retlen, u_char *buf)
-@@ -1415,7 +1486,7 @@ static int macronix_quad_enable(struct s
+@@ -1420,7 +1491,7 @@ static int macronix_quad_enable(struct s
   * Write status Register and configuration register with 2 bytes
   * The first byte will be written to the status register, while the
   * second byte will be written to the configuration register.
@@ -831,7 +831,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
   */
  static int write_sr_cr(struct spi_nor *nor, u16 val)
  {
-@@ -1463,6 +1534,24 @@ static int spansion_quad_enable(struct s
+@@ -1468,6 +1539,24 @@ static int spansion_quad_enable(struct s
  	return 0;
  }
  
@@ -856,7 +856,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  static int set_quad_mode(struct spi_nor *nor, const struct flash_info *info)
  {
  	int status;
-@@ -1609,9 +1698,25 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -1614,9 +1703,25 @@ int spi_nor_scan(struct spi_nor *nor, co
  		write_sr(nor, 0);
  		spi_nor_wait_till_ready(nor);
  	}
@@ -882,7 +882,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  	mtd->priv = nor;
  	mtd->type = MTD_NORFLASH;
  	mtd->writesize = 1;
-@@ -1645,6 +1750,8 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -1650,6 +1755,8 @@ int spi_nor_scan(struct spi_nor *nor, co
  		nor->flags |= SNOR_F_USE_FSR;
  	if (info->flags & SPI_NOR_HAS_TB)
  		nor->flags |= SNOR_F_HAS_SR_TB;
@@ -891,7 +891,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  
  #ifdef CONFIG_MTD_SPI_NOR_USE_4K_SECTORS
  	/* prefer "small sector" erase if possible */
-@@ -1684,9 +1791,15 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -1689,9 +1796,15 @@ int spi_nor_scan(struct spi_nor *nor, co
  	/* Some devices cannot do fast-read, no matter what DT tells us */
  	if (info->flags & SPI_NOR_NO_FR)
  		nor->flash_read = SPI_NOR_NORMAL;
@@ -910,7 +910,7 @@ Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
  		ret = set_quad_mode(nor, info);
  		if (ret) {
  			dev_err(dev, "quad mode not supported\n");
-@@ -1699,6 +1812,9 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -1704,6 +1817,9 @@ int spi_nor_scan(struct spi_nor *nor, co
  
  	/* Default commands */
  	switch (nor->flash_read) {