kernel: Add support for XM25QH64A and XM25QH128A SPI NOR flash

These devices are produced by Wuhan Xinxin Semiconductor Manufacturing
Corp. (XMC) and found on some routers from Chinese manufactures.

The data sheets can be found here:
http://www.xmcwh.com/Uploads/2018-03-01/5a9799e4cb355.pdf
http://www.xmcwh.com/Uploads/2018-02-05/5a77e6dbe968b.pdf

Closes: FS#1460
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/pending-4.14/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch

@@ -0,0 +1,30 @@
+From b02f3405c935a28200db26b63e42086057565cf4 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 31 Mar 2018 20:09:54 +0200
+Subject: [PATCH] mtd: spi-nor: Add support for XM25QH64A and XM25QH128A
+
+These devices are produced by Wuhan Xinxin Semiconductor Manufacturing
+Corp. (XMC) and found on some routers from Chinese manufactures.
+
+The data sheets can be found here:
+http://www.xmcwh.com/Uploads/2018-03-01/5a9799e4cb355.pdf
+http://www.xmcwh.com/Uploads/2018-02-05/5a77e6dbe968b.pdf
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/mtd/spi-nor/spi-nor.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1181,6 +1181,10 @@ static const struct flash_info spi_nor_i
+ 	{ "3S400AN", S3AN_INFO(0x1f2400, 256, 264) },
+ 	{ "3S700AN", S3AN_INFO(0x1f2500, 512, 264) },
+ 	{ "3S1400AN", S3AN_INFO(0x1f2600, 512, 528) },
++
++	/* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */
++	{ "XM25QH64A", INFO(0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
++	{ "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+ 	{ },
+ };
+ 

target/linux/generic/pending-4.9/478-mtd-spi-nor-Add-support-for-XM25QH64A-and-XM25QH128A.patch

@@ -0,0 +1,30 @@
+From b02f3405c935a28200db26b63e42086057565cf4 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sat, 31 Mar 2018 20:09:54 +0200
+Subject: [PATCH] mtd: spi-nor: Add support for XM25QH64A and XM25QH128A
+
+These devices are produced by Wuhan Xinxin Semiconductor Manufacturing
+Corp. (XMC) and found on some routers from Chinese manufactures.
+
+The data sheets can be found here:
+http://www.xmcwh.com/Uploads/2018-03-01/5a9799e4cb355.pdf
+http://www.xmcwh.com/Uploads/2018-02-05/5a77e6dbe968b.pdf
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ drivers/mtd/spi-nor/spi-nor.c | 4 ++++
+ 1 file changed, 4 insertions(+)
+
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -1166,6 +1166,10 @@ static const struct flash_info spi_nor_i
+ 	{ "3S400AN", S3AN_INFO(0x1f2400, 256, 264) },
+ 	{ "3S700AN", S3AN_INFO(0x1f2500, 512, 264) },
+ 	{ "3S1400AN", S3AN_INFO(0x1f2600, 512, 528) },
++
++	/* XMC (Wuhan Xinxin Semiconductor Manufacturing Corp.) */
++	{ "XM25QH64A", INFO(0x207017, 0, 64 * 1024, 128, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
++	{ "XM25QH128A", INFO(0x207018, 0, 64 * 1024, 256, SECT_4K | SPI_NOR_DUAL_READ | SPI_NOR_QUAD_READ) },
+ 	{ },
+ };
+