generic: mtd: backport SPI_NOR_HAS_LOCK

This flag was added to 4.9 with upstream commit
76a4707de5e18dc32d9cb4e990686140c5664a15.

Signed-off-by: Victor Shyba <victor1984@riseup.net>
[refresh and adjust platform patches, fix commit message]
Signed-off-by: Mathias Kresin <dev@kresin.me>

6 files changed, 56 insertions, 7 deletions

diff --git a/target/linux/generic/patches-4.4/048-mtd-spi-nor-backport-SPI_NOR_HAS_LOCK-flag.patch b/target/linux/generic/patches-4.4/048-mtd-spi-nor-backport-SPI_NOR_HAS_LOCK-flag.patch
new file mode 100644
index 0000000000..1966e32aaf
--- /dev/null
+++ b/target/linux/generic/patches-4.4/048-mtd-spi-nor-backport-SPI_NOR_HAS_LOCK-flag.patch
@@ -0,0 +1,49 @@
+From 76a4707de5e18dc32d9cb4e990686140c5664a15 Mon Sep 17 00:00:00 2001
+From: Brian Norris <computersforpeace@gmail.com>
+Date: Fri, 29 Jan 2016 11:25:35 -0800
+Subject: [PATCH] mtd: spi-nor: add SPI_NOR_HAS_LOCK flag
+
+We can't determine this purely by manufacturer type (see commit
+67b9bcd36906 ("mtd: spi-nor: fix Spansion regressions (aliased with
+Winbond)")), and it's not autodetectable by anything like SFDP. So make
+a new flag for it.
+
+Signed-off-by: Brian Norris <computersforpeace@gmail.com>
+Reviewed-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+Tested-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
+---
+ drivers/mtd/spi-nor/spi-nor.c | 7 +++++--
+ 1 file changed, 5 insertions(+), 2 deletions(-)
+
+diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
+index 72d87c2..d1edafc 100644
+--- a/drivers/mtd/spi-nor/spi-nor.c
++++ b/drivers/mtd/spi-nor/spi-nor.c
+@@ -68,6 +68,7 @@ struct flash_info {
+ #define	SPI_NOR_DUAL_READ	0x20    /* Flash supports Dual Read */
+ #define	SPI_NOR_QUAD_READ	0x40    /* Flash supports Quad Read */
+ #define	USE_FSR			0x80	/* use flag status register */
++#define	SPI_NOR_HAS_LOCK	0x100	/* Flash supports lock/unlock via SR */
+ };
+ 
+ #define JEDEC_MFR(info)	((info)->id[0])
+@@ -1156,7 +1157,8 @@ int spi_nor_scan(struct spi_nor *nor, co
+ 
+ 	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
+ 	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
+-	    JEDEC_MFR(info) == SNOR_MFR_SST) {
++	    JEDEC_MFR(info) == SNOR_MFR_SST ||
++	    info->flags & SPI_NOR_HAS_LOCK) {
+ 		write_enable(nor);
+ 		write_sr(nor, 0);
+ 	}
+@@ -1172,7 +1174,8 @@ int spi_nor_scan(struct spi_nor *nor, co
+ 	mtd->_read = spi_nor_read;
+ 
+ 	/* NOR protection support for STmicro/Micron chips and similar */
+-	if (JEDEC_MFR(info) == SNOR_MFR_MICRON) {
++	if (JEDEC_MFR(info) == SNOR_MFR_MICRON ||
++		info->flags & SPI_NOR_HAS_LOCK) {
+ 		nor->flash_lock = stm_lock;
+ 		nor->flash_unlock = stm_unlock;
+ 		nor->flash_is_locked = stm_is_locked;
diff --git a/target/linux/generic/patches-4.4/150-mtd-spi-nor-add-support-for-ESMT_f25l32qa-and-ESMT_f.patch b/target/linux/generic/patches-4.4/150-mtd-spi-nor-add-support-for-ESMT_f25l32qa-and-ESMT_f.patch
index 65f1b708a1..d6e577be8c 100644
--- a/target/linux/generic/patches-4.4/150-mtd-spi-nor-add-support-for-ESMT_f25l32qa-and-ESMT_f.patch
+++ b/target/linux/generic/patches-4.4/150-mtd-spi-nor-add-support-for-ESMT_f25l32qa-and-ESMT_f.patch
@@ -10,7 +10,7 @@ Signed-off-by: L. D. Pinney <ldpinney@gmail.com>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -688,6 +688,8 @@ static const struct flash_info spi_nor_i
+@@ -689,6 +689,8 @@ static const struct flash_info spi_nor_i
  
  	/* ESMT */
  	{ "f25l32pa", INFO(0x8c2016, 0, 64 * 1024, 64, SECT_4K) },
diff --git a/target/linux/generic/patches-4.4/465-m25p80-mx-disable-software-protection.patch b/target/linux/generic/patches-4.4/465-m25p80-mx-disable-software-protection.patch
index 070f4c6023..89bafa8387 100644
--- a/target/linux/generic/patches-4.4/465-m25p80-mx-disable-software-protection.patch
+++ b/target/linux/generic/patches-4.4/465-m25p80-mx-disable-software-protection.patch
@@ -4,11 +4,11 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -1158,6 +1158,7 @@ int spi_nor_scan(struct spi_nor *nor, co
+@@ -1159,6 +1159,7 @@ int spi_nor_scan(struct spi_nor *nor, co
  
  	if (JEDEC_MFR(info) == SNOR_MFR_ATMEL ||
  	    JEDEC_MFR(info) == SNOR_MFR_INTEL ||
 +	    JEDEC_MFR(info) == SNOR_MFR_MACRONIX ||
- 	    JEDEC_MFR(info) == SNOR_MFR_SST) {
+ 	    JEDEC_MFR(info) == SNOR_MFR_SST ||
+ 	    info->flags & SPI_NOR_HAS_LOCK) {
  		write_enable(nor);
- 		write_sr(nor, 0);
diff --git a/target/linux/generic/patches-4.4/475-mtd-spi-nor-add-macronix-mx25u25635f.patch b/target/linux/generic/patches-4.4/475-mtd-spi-nor-add-macronix-mx25u25635f.patch
index 3db4a41968..d868a7da25 100644
--- a/target/linux/generic/patches-4.4/475-mtd-spi-nor-add-macronix-mx25u25635f.patch
+++ b/target/linux/generic/patches-4.4/475-mtd-spi-nor-add-macronix-mx25u25635f.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -724,6 +724,7 @@ static const struct flash_info spi_nor_i
+@@ -725,6 +725,7 @@ static const struct flash_info spi_nor_i
  	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
  	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
  	{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
diff --git a/target/linux/generic/patches-4.4/476-mtd-spi-nor-add-eon-en25q128.patch b/target/linux/generic/patches-4.4/476-mtd-spi-nor-add-eon-en25q128.patch
index 38f3255b14..ab805b71d0 100644
--- a/target/linux/generic/patches-4.4/476-mtd-spi-nor-add-eon-en25q128.patch
+++ b/target/linux/generic/patches-4.4/476-mtd-spi-nor-add-eon-en25q128.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -682,6 +682,7 @@ static const struct flash_info spi_nor_i
+@@ -683,6 +683,7 @@ static const struct flash_info spi_nor_i
  	{ "en25q32b",   INFO(0x1c3016, 0, 64 * 1024,   64, 0) },
  	{ "en25p64",    INFO(0x1c2017, 0, 64 * 1024,  128, 0) },
  	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
diff --git a/target/linux/generic/patches-4.4/477-mtd-add-spi-nor-add-mx25u3235f.patch b/target/linux/generic/patches-4.4/477-mtd-add-spi-nor-add-mx25u3235f.patch
index eb99b28a55..fa1ab3fa06 100644
--- a/target/linux/generic/patches-4.4/477-mtd-add-spi-nor-add-mx25u3235f.patch
+++ b/target/linux/generic/patches-4.4/477-mtd-add-spi-nor-add-mx25u3235f.patch
@@ -1,6 +1,6 @@
 --- a/drivers/mtd/spi-nor/spi-nor.c
 +++ b/drivers/mtd/spi-nor/spi-nor.c
-@@ -721,6 +721,7 @@ static const struct flash_info spi_nor_i
+@@ -722,6 +722,7 @@ static const struct flash_info spi_nor_i
  	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, SECT_4K) },
  	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64, SECT_4K) },
  	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, SECT_4K) },