kernel: backport 5.13 mtd partitioning changes

1. Use upstream accepted NVMEM patches
2. Minor fix for BCM4908 partitioning
3. Support for Linksys firmware partitions on Northstar

Signed-off-by: Rafał Miłecki <[email protected]>

target/linux/ath79/patches-5.10/404-mtd-cybertan-trx-parser.patch

@@ -1,18 +1,18 @@
 --- a/drivers/mtd/parsers/Makefile
 +++ b/drivers/mtd/parsers/Makefile
-@@ -7,6 +7,7 @@ obj-$(CONFIG_MTD_MYLOADER_PARTS)		+= myl
- obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
+@@ -8,6 +8,7 @@ obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
  ofpart-y				+= ofpart_core.o
  ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908)	+= ofpart_bcm4908.o
+ ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
 +obj-$(CONFIG_MTD_PARSER_CYBERTAN)	+= parser_cybertan.o
  obj-$(CONFIG_MTD_PARSER_IMAGETAG)	+= parser_imagetag.o
  obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -92,6 +92,14 @@ config MTD_OF_PARTS_BCM4908
- 	  that can have multiple "firmware" partitions. It takes care of
- 	  finding currently used one and backup ones.
+@@ -102,6 +102,14 @@ config MTD_OF_PARTS_LINKSYS_NS
+ 	  two "firmware" partitions. Currently used firmware has to be detected
+ 	  using CFE environment variable.
  
 +config MTD_PARSER_CYBERTAN
 +	tristate "Parser for Cybertan format partitions"

target/linux/ath79/patches-5.4/404-mtd-cybertan-trx-parser.patch

@@ -1,18 +1,18 @@
 --- a/drivers/mtd/parsers/Makefile
 +++ b/drivers/mtd/parsers/Makefile
-@@ -7,6 +7,7 @@ obj-$(CONFIG_MTD_MYLOADER_PARTS)		+= myl
- obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
+@@ -8,6 +8,7 @@ obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
  ofpart-y				+= ofpart_core.o
  ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908)	+= ofpart_bcm4908.o
+ ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
 +obj-$(CONFIG_MTD_PARSER_CYBERTAN)	+= parser_cybertan.o
  obj-$(CONFIG_MTD_PARSER_IMAGETAG)	+= parser_imagetag.o
  obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -92,6 +92,14 @@ config MTD_OF_PARTS_BCM4908
- 	  that can have multiple "firmware" partitions. It takes care of
- 	  finding currently used one and backup ones.
+@@ -102,6 +102,14 @@ config MTD_OF_PARTS_LINKSYS_NS
+ 	  two "firmware" partitions. Currently used firmware has to be detected
+ 	  using CFE environment variable.
  
 +config MTD_PARSER_CYBERTAN
 +	tristate "Parser for Cybertan format partitions"

target/linux/bcm4908/config-5.4

@@ -139,6 +139,7 @@ CONFIG_MTD_NAND_BRCMNAND=y
 CONFIG_MTD_NAND_CORE=y
 CONFIG_MTD_NAND_ECC_SW_HAMMING=y
 CONFIG_MTD_OF_PARTS_BCM4908=y
+# CONFIG_MTD_OF_PARTS_LINKSYS_NS is not set
 CONFIG_MTD_RAW_NAND=y
 CONFIG_MTD_SPLIT_CFE_BOOTFS=y
 # CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set

target/linux/bcm53xx/config-5.4

@@ -258,6 +258,7 @@ CONFIG_MTD_BCM47XX_PARTS=y
 CONFIG_MTD_NAND_BRCMNAND=y
 CONFIG_MTD_NAND_CORE=y
 CONFIG_MTD_NAND_ECC_SW_HAMMING=y
+CONFIG_MTD_OF_PARTS_LINKSYS_NS=y
 CONFIG_MTD_PARSER_TRX=y
 CONFIG_MTD_RAW_NAND=y
 CONFIG_MTD_SPI_NOR=y

target/linux/generic/backport-5.10/405-v5.13-mtd-parsers-ofpart-make-symbol-bcm4908_partitions_qu.patch

@@ -0,0 +1,34 @@
+From b87b6d2d6f540e29c3f98e1572d64e560d73d6c1 Mon Sep 17 00:00:00 2001
+From: Wei Yongjun <[email protected]>
+Date: Thu, 4 Mar 2021 06:46:00 +0000
+Subject: [PATCH] mtd: parsers: ofpart: make symbol 'bcm4908_partitions_quirks'
+ static
+
+The sparse tool complains as follows:
+
+drivers/mtd/parsers/ofpart_core.c:25:32: warning:
+ symbol 'bcm4908_partitions_quirks' was not declared. Should it be static?
+
+This symbol is not used outside of ofpart_core.c, so this
+commit marks it static.
+
+Fixes: 457da931b608 ("mtd: parsers: ofpart: support BCM4908 fixed partitions")
+Reported-by: Hulk Robot <[email protected]>
+Signed-off-by: Wei Yongjun <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ drivers/mtd/parsers/ofpart_core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mtd/parsers/ofpart_core.c
++++ b/drivers/mtd/parsers/ofpart_core.c
+@@ -22,7 +22,7 @@ struct fixed_partitions_quirks {
+ 	int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts);
+ };
+ 
+-struct fixed_partitions_quirks bcm4908_partitions_quirks = {
++static struct fixed_partitions_quirks bcm4908_partitions_quirks = {
+ 	.post_parse = bcm4908_partitions_post_parse,
+ };
+ 

target/linux/generic/backport-5.10/407-v5.13-0001-dt-bindings-mtd-add-binding-for-Linksys-Northstar-pa.patch

@@ -0,0 +1,98 @@
+From 2fa7294175c76e1ec568aa75c1891fd908728c8d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Date: Fri, 12 Mar 2021 14:49:18 +0100
+Subject: [PATCH] dt-bindings: mtd: add binding for Linksys Northstar
+ partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Linksys on Broadcom Northstar devices uses fixed flash layout with
+multiple firmware partitions.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+Reviewed-by: Rob Herring <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ .../mtd/partitions/linksys,ns-partitions.yaml | 74 +++++++++++++++++++
+ 1 file changed, 74 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
+@@ -0,0 +1,74 @@
++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/mtd/partitions/linksys,ns-partitions.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Linksys Northstar partitioning
++
++description: |
++  Linksys devices based on Broadcom Northstar architecture often use two
++  firmware partitions. One is used for regular booting, the other is treated as
++  fallback.
++
++  This binding allows defining all fixed partitions and marking those containing
++  firmware. System can use that information e.g. for booting or flashing
++  purposes.
++
++maintainers:
++  - Rafał Miłecki <[email protected]>
++
++properties:
++  compatible:
++    const: linksys,ns-partitions
++
++  "#address-cells":
++    enum: [ 1, 2 ]
++
++  "#size-cells":
++    enum: [ 1, 2 ]
++
++patternProperties:
++  "^partition@[0-9a-f]+$":
++    $ref: "partition.yaml#"
++    properties:
++      compatible:
++        items:
++          - const: linksys,ns-firmware
++          - const: brcm,trx
++    unevaluatedProperties: false
++
++required:
++  - "#address-cells"
++  - "#size-cells"
++
++additionalProperties: false
++
++examples:
++  - |
++    partitions {
++        compatible = "linksys,ns-partitions";
++        #address-cells = <1>;
++        #size-cells = <1>;
++
++        partition@0 {
++            label = "boot";
++            reg = <0x0 0x100000>;
++            read-only;
++        };
++
++        partition@100000 {
++            label = "nvram";
++            reg = <0x100000 0x100000>;
++        };
++
++        partition@200000 {
++            compatible = "linksys,ns-firmware", "brcm,trx";
++            reg = <0x200000 0xf00000>;
++        };
++
++        partition@1100000 {
++            compatible = "linksys,ns-firmware", "brcm,trx";
++            reg = <0x1100000 0xf00000>;
++        };
++    };

target/linux/generic/backport-5.10/407-v5.13-0002-mtd-parsers-ofpart-support-Linksys-Northstar-partiti.patch

@@ -0,0 +1,156 @@
+From 7134a2d026d942210b4d26d6059c9d979ca7866e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Date: Fri, 12 Mar 2021 14:49:19 +0100
+Subject: [PATCH] mtd: parsers: ofpart: support Linksys Northstar partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This allows extending ofpart parser with support for Linksys Northstar
+devices. That support uses recently added quirks mechanism.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ drivers/mtd/parsers/Kconfig             | 10 +++++
+ drivers/mtd/parsers/Makefile            |  1 +
+ drivers/mtd/parsers/ofpart_core.c       |  6 +++
+ drivers/mtd/parsers/ofpart_linksys_ns.c | 50 +++++++++++++++++++++++++
+ drivers/mtd/parsers/ofpart_linksys_ns.h | 18 +++++++++
+ 5 files changed, 85 insertions(+)
+ create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.c
+ create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.h
+
+--- a/drivers/mtd/parsers/Kconfig
++++ b/drivers/mtd/parsers/Kconfig
+@@ -76,6 +76,16 @@ config MTD_OF_PARTS_BCM4908
+ 	  that can have multiple "firmware" partitions. It takes care of
+ 	  finding currently used one and backup ones.
+ 
++config MTD_OF_PARTS_LINKSYS_NS
++	bool "Linksys Northstar partitioning support"
++	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || COMPILE_TEST)
++	default ARCH_BCM_5301X
++	help
++	  This provides partitions parser for Linksys devices based on Broadcom
++	  Northstar architecture. Linksys commonly uses fixed flash layout with
++	  two "firmware" partitions. Currently used firmware has to be detected
++	  using CFE environment variable.
++
+ config MTD_PARSER_IMAGETAG
+ 	tristate "Parser for BCM963XX Image Tag format partitions"
+ 	depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+--- a/drivers/mtd/parsers/Makefile
++++ b/drivers/mtd/parsers/Makefile
+@@ -6,6 +6,7 @@ obj-$(CONFIG_MTD_CMDLINE_PARTS)		+= cmdl
+ obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
+ ofpart-y				+= ofpart_core.o
+ ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908)	+= ofpart_bcm4908.o
++ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
+ obj-$(CONFIG_MTD_PARSER_IMAGETAG)	+= parser_imagetag.o
+ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
+ obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
+--- a/drivers/mtd/parsers/ofpart_core.c
++++ b/drivers/mtd/parsers/ofpart_core.c
+@@ -17,6 +17,7 @@
+ #include <linux/mtd/partitions.h>
+ 
+ #include "ofpart_bcm4908.h"
++#include "ofpart_linksys_ns.h"
+ 
+ struct fixed_partitions_quirks {
+ 	int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts);
+@@ -26,6 +27,10 @@ static struct fixed_partitions_quirks bc
+ 	.post_parse = bcm4908_partitions_post_parse,
+ };
+ 
++static struct fixed_partitions_quirks linksys_ns_partitions_quirks = {
++	.post_parse = linksys_ns_partitions_post_parse,
++};
++
+ static const struct of_device_id parse_ofpart_match_table[];
+ 
+ static bool node_has_compatible(struct device_node *pp)
+@@ -167,6 +172,7 @@ static const struct of_device_id parse_o
+ 	{ .compatible = "fixed-partitions" },
+ 	/* Customized */
+ 	{ .compatible = "brcm,bcm4908-partitions", .data = &bcm4908_partitions_quirks, },
++	{ .compatible = "linksys,ns-partitions", .data = &linksys_ns_partitions_quirks, },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, parse_ofpart_match_table);
+--- /dev/null
++++ b/drivers/mtd/parsers/ofpart_linksys_ns.c
+@@ -0,0 +1,50 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2021 Rafał Miłecki <[email protected]>
++ */
++
++#include <linux/bcm47xx_nvram.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++
++#include "ofpart_linksys_ns.h"
++
++#define NVRAM_BOOT_PART		"bootpartition"
++
++static int ofpart_linksys_ns_bootpartition(void)
++{
++	char buf[4];
++	int bootpartition;
++
++	/* Check CFE environment variable */
++	if (bcm47xx_nvram_getenv(NVRAM_BOOT_PART, buf, sizeof(buf)) > 0) {
++		if (!kstrtoint(buf, 0, &bootpartition))
++			return bootpartition;
++		pr_warn("Failed to parse %s value \"%s\"\n", NVRAM_BOOT_PART,
++			buf);
++	} else {
++		pr_warn("Failed to get NVRAM \"%s\"\n", NVRAM_BOOT_PART);
++	}
++
++	return 0;
++}
++
++int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++				     struct mtd_partition *parts,
++				     int nr_parts)
++{
++	int bootpartition = ofpart_linksys_ns_bootpartition();
++	int trx_idx = 0;
++	int i;
++
++	for (i = 0; i < nr_parts; i++) {
++		if (of_device_is_compatible(parts[i].of_node, "linksys,ns-firmware")) {
++			if (trx_idx++ == bootpartition)
++				parts[i].name = "firmware";
++			else
++				parts[i].name = "backup";
++		}
++	}
++
++	return 0;
++}
+--- /dev/null
++++ b/drivers/mtd/parsers/ofpart_linksys_ns.h
+@@ -0,0 +1,18 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++#ifndef __OFPART_LINKSYS_NS_H
++#define __OFPART_LINKSYS_NS_H
++
++#ifdef CONFIG_MTD_OF_PARTS_LINKSYS_NS
++int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++				     struct mtd_partition *parts,
++				     int nr_parts);
++#else
++static inline int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++						   struct mtd_partition *parts,
++						   int nr_parts)
++{
++	return -EOPNOTSUPP;
++}
++#endif
++
++#endif

target/linux/generic/backport-5.4/405-v5.13-mtd-parsers-ofpart-make-symbol-bcm4908_partitions_qu.patch

@@ -0,0 +1,34 @@
+From b87b6d2d6f540e29c3f98e1572d64e560d73d6c1 Mon Sep 17 00:00:00 2001
+From: Wei Yongjun <[email protected]>
+Date: Thu, 4 Mar 2021 06:46:00 +0000
+Subject: [PATCH] mtd: parsers: ofpart: make symbol 'bcm4908_partitions_quirks'
+ static
+
+The sparse tool complains as follows:
+
+drivers/mtd/parsers/ofpart_core.c:25:32: warning:
+ symbol 'bcm4908_partitions_quirks' was not declared. Should it be static?
+
+This symbol is not used outside of ofpart_core.c, so this
+commit marks it static.
+
+Fixes: 457da931b608 ("mtd: parsers: ofpart: support BCM4908 fixed partitions")
+Reported-by: Hulk Robot <[email protected]>
+Signed-off-by: Wei Yongjun <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ drivers/mtd/parsers/ofpart_core.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/mtd/parsers/ofpart_core.c
++++ b/drivers/mtd/parsers/ofpart_core.c
+@@ -22,7 +22,7 @@ struct fixed_partitions_quirks {
+ 	int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts);
+ };
+ 
+-struct fixed_partitions_quirks bcm4908_partitions_quirks = {
++static struct fixed_partitions_quirks bcm4908_partitions_quirks = {
+ 	.post_parse = bcm4908_partitions_post_parse,
+ };
+ 

target/linux/generic/pending-5.4/405-0001-mtd-core-add-nvmem-cells-compatible-to-parse-mtd-as-.patch → target/linux/generic/backport-5.4/406-v5.13-0001-mtd-core-add-nvmem-cells-compatible-to-parse-mtd-as-.patch

@@ -1,4 +1,4 @@
-From a5d83d6e2bc747b13f347962d4b335d70b23559b Mon Sep 17 00:00:00 2001
+From 658c4448bbbf02a143abf1b89d09a3337ebd3ba6 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <[email protected]>
 Date: Fri, 12 Mar 2021 07:28:19 +0100
 Subject: [PATCH] mtd: core: add nvmem-cells compatible to parse mtd as nvmem
@@ -13,6 +13,8 @@ nvmem provider.
 
 Signed-off-by: Ansuel Smith <[email protected]>
 Tested-by: Rafał Miłecki <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
 ---
  drivers/mtd/mtdcore.c | 3 ++-
  1 file changed, 2 insertions(+), 1 deletion(-)

target/linux/generic/pending-5.4/405-0002-devicetree-nvmem-nvmem-drop-nodename-restriction.patch → target/linux/generic/backport-5.4/406-v5.13-0002-dt-bindings-nvmem-drop-nodename-restriction.patch

@@ -1,12 +1,15 @@
-From 42645976c3289b03a12f1bd2bc131fd98fc27170 Mon Sep 17 00:00:00 2001
+From 52981a0fa9f7d68641e0e6bb584054c6d9eb2056 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <[email protected]>
 Date: Fri, 12 Mar 2021 07:28:20 +0100
-Subject: [PATCH] devicetree: nvmem: nvmem: drop $nodename restriction
+Subject: [PATCH] dt-bindings: nvmem: drop $nodename restriction
 
 Drop $nodename restriction as now mtd partition can also be used as
 nvmem provider.
 
 Signed-off-by: Ansuel Smith <[email protected]>
+Reviewed-by: Rob Herring <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
 ---
  Documentation/devicetree/bindings/nvmem/nvmem.yaml | 3 ---
  1 file changed, 3 deletions(-)

target/linux/generic/pending-5.4/405-0003-dt-bindings-mtd-Document-use-of-nvmem-cells-compatib.patch → target/linux/generic/backport-5.4/406-v5.13-0003-dt-bindings-mtd-Document-use-of-nvmem-cells-compatib.patch

@@ -1,4 +1,4 @@
-From 377aa0135dc8489312edd3184d143ce3a89ff7ee Mon Sep 17 00:00:00 2001
+From ac42c46f983e4a9003a7bb91ad44a23ab7b8f534 Mon Sep 17 00:00:00 2001
 From: Ansuel Smith <[email protected]>
 Date: Fri, 12 Mar 2021 07:28:21 +0100
 Subject: [PATCH] dt-bindings: mtd: Document use of nvmem-cells compatible
@@ -8,6 +8,8 @@ nvmem provider.
 
 Signed-off-by: Ansuel Smith <[email protected]>
 Reviewed-by: Rob Herring <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
 ---
  .../bindings/mtd/partitions/nvmem-cells.yaml  | 99 +++++++++++++++++++
  1 file changed, 99 insertions(+)

target/linux/generic/backport-5.4/407-v5.13-0001-dt-bindings-mtd-add-binding-for-Linksys-Northstar-pa.patch

@@ -0,0 +1,98 @@
+From 2fa7294175c76e1ec568aa75c1891fd908728c8d Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Date: Fri, 12 Mar 2021 14:49:18 +0100
+Subject: [PATCH] dt-bindings: mtd: add binding for Linksys Northstar
+ partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Linksys on Broadcom Northstar devices uses fixed flash layout with
+multiple firmware partitions.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+Reviewed-by: Rob Herring <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ .../mtd/partitions/linksys,ns-partitions.yaml | 74 +++++++++++++++++++
+ 1 file changed, 74 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/mtd/partitions/linksys,ns-partitions.yaml
+@@ -0,0 +1,74 @@
++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/mtd/partitions/linksys,ns-partitions.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Linksys Northstar partitioning
++
++description: |
++  Linksys devices based on Broadcom Northstar architecture often use two
++  firmware partitions. One is used for regular booting, the other is treated as
++  fallback.
++
++  This binding allows defining all fixed partitions and marking those containing
++  firmware. System can use that information e.g. for booting or flashing
++  purposes.
++
++maintainers:
++  - Rafał Miłecki <[email protected]>
++
++properties:
++  compatible:
++    const: linksys,ns-partitions
++
++  "#address-cells":
++    enum: [ 1, 2 ]
++
++  "#size-cells":
++    enum: [ 1, 2 ]
++
++patternProperties:
++  "^partition@[0-9a-f]+$":
++    $ref: "partition.yaml#"
++    properties:
++      compatible:
++        items:
++          - const: linksys,ns-firmware
++          - const: brcm,trx
++    unevaluatedProperties: false
++
++required:
++  - "#address-cells"
++  - "#size-cells"
++
++additionalProperties: false
++
++examples:
++  - |
++    partitions {
++        compatible = "linksys,ns-partitions";
++        #address-cells = <1>;
++        #size-cells = <1>;
++
++        partition@0 {
++            label = "boot";
++            reg = <0x0 0x100000>;
++            read-only;
++        };
++
++        partition@100000 {
++            label = "nvram";
++            reg = <0x100000 0x100000>;
++        };
++
++        partition@200000 {
++            compatible = "linksys,ns-firmware", "brcm,trx";
++            reg = <0x200000 0xf00000>;
++        };
++
++        partition@1100000 {
++            compatible = "linksys,ns-firmware", "brcm,trx";
++            reg = <0x1100000 0xf00000>;
++        };
++    };

target/linux/generic/backport-5.4/407-v5.13-0002-mtd-parsers-ofpart-support-Linksys-Northstar-partiti.patch

@@ -0,0 +1,156 @@
+From 7134a2d026d942210b4d26d6059c9d979ca7866e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <[email protected]>
+Date: Fri, 12 Mar 2021 14:49:19 +0100
+Subject: [PATCH] mtd: parsers: ofpart: support Linksys Northstar partitions
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This allows extending ofpart parser with support for Linksys Northstar
+devices. That support uses recently added quirks mechanism.
+
+Signed-off-by: Rafał Miłecki <[email protected]>
+Signed-off-by: Miquel Raynal <[email protected]>
+Link: https://lore.kernel.org/linux-mtd/[email protected]
+---
+ drivers/mtd/parsers/Kconfig             | 10 +++++
+ drivers/mtd/parsers/Makefile            |  1 +
+ drivers/mtd/parsers/ofpart_core.c       |  6 +++
+ drivers/mtd/parsers/ofpart_linksys_ns.c | 50 +++++++++++++++++++++++++
+ drivers/mtd/parsers/ofpart_linksys_ns.h | 18 +++++++++
+ 5 files changed, 85 insertions(+)
+ create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.c
+ create mode 100644 drivers/mtd/parsers/ofpart_linksys_ns.h
+
+--- a/drivers/mtd/parsers/Kconfig
++++ b/drivers/mtd/parsers/Kconfig
+@@ -76,6 +76,16 @@ config MTD_OF_PARTS_BCM4908
+ 	  that can have multiple "firmware" partitions. It takes care of
+ 	  finding currently used one and backup ones.
+ 
++config MTD_OF_PARTS_LINKSYS_NS
++	bool "Linksys Northstar partitioning support"
++	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || COMPILE_TEST)
++	default ARCH_BCM_5301X
++	help
++	  This provides partitions parser for Linksys devices based on Broadcom
++	  Northstar architecture. Linksys commonly uses fixed flash layout with
++	  two "firmware" partitions. Currently used firmware has to be detected
++	  using CFE environment variable.
++
+ config MTD_PARSER_IMAGETAG
+ 	tristate "Parser for BCM963XX Image Tag format partitions"
+ 	depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+--- a/drivers/mtd/parsers/Makefile
++++ b/drivers/mtd/parsers/Makefile
+@@ -6,6 +6,7 @@ obj-$(CONFIG_MTD_CMDLINE_PARTS)		+= cmdl
+ obj-$(CONFIG_MTD_OF_PARTS)		+= ofpart.o
+ ofpart-y				+= ofpart_core.o
+ ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908)	+= ofpart_bcm4908.o
++ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)+= ofpart_linksys_ns.o
+ obj-$(CONFIG_MTD_PARSER_IMAGETAG)	+= parser_imagetag.o
+ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
+ obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
+--- a/drivers/mtd/parsers/ofpart_core.c
++++ b/drivers/mtd/parsers/ofpart_core.c
+@@ -17,6 +17,7 @@
+ #include <linux/mtd/partitions.h>
+ 
+ #include "ofpart_bcm4908.h"
++#include "ofpart_linksys_ns.h"
+ 
+ struct fixed_partitions_quirks {
+ 	int (*post_parse)(struct mtd_info *mtd, struct mtd_partition *parts, int nr_parts);
+@@ -26,6 +27,10 @@ static struct fixed_partitions_quirks bc
+ 	.post_parse = bcm4908_partitions_post_parse,
+ };
+ 
++static struct fixed_partitions_quirks linksys_ns_partitions_quirks = {
++	.post_parse = linksys_ns_partitions_post_parse,
++};
++
+ static const struct of_device_id parse_ofpart_match_table[];
+ 
+ static bool node_has_compatible(struct device_node *pp)
+@@ -164,6 +169,7 @@ static const struct of_device_id parse_o
+ 	{ .compatible = "fixed-partitions" },
+ 	/* Customized */
+ 	{ .compatible = "brcm,bcm4908-partitions", .data = &bcm4908_partitions_quirks, },
++	{ .compatible = "linksys,ns-partitions", .data = &linksys_ns_partitions_quirks, },
+ 	{},
+ };
+ MODULE_DEVICE_TABLE(of, parse_ofpart_match_table);
+--- /dev/null
++++ b/drivers/mtd/parsers/ofpart_linksys_ns.c
+@@ -0,0 +1,50 @@
++// SPDX-License-Identifier: GPL-2.0
++/*
++ * Copyright (C) 2021 Rafał Miłecki <[email protected]>
++ */
++
++#include <linux/bcm47xx_nvram.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++
++#include "ofpart_linksys_ns.h"
++
++#define NVRAM_BOOT_PART		"bootpartition"
++
++static int ofpart_linksys_ns_bootpartition(void)
++{
++	char buf[4];
++	int bootpartition;
++
++	/* Check CFE environment variable */
++	if (bcm47xx_nvram_getenv(NVRAM_BOOT_PART, buf, sizeof(buf)) > 0) {
++		if (!kstrtoint(buf, 0, &bootpartition))
++			return bootpartition;
++		pr_warn("Failed to parse %s value \"%s\"\n", NVRAM_BOOT_PART,
++			buf);
++	} else {
++		pr_warn("Failed to get NVRAM \"%s\"\n", NVRAM_BOOT_PART);
++	}
++
++	return 0;
++}
++
++int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++				     struct mtd_partition *parts,
++				     int nr_parts)
++{
++	int bootpartition = ofpart_linksys_ns_bootpartition();
++	int trx_idx = 0;
++	int i;
++
++	for (i = 0; i < nr_parts; i++) {
++		if (of_device_is_compatible(parts[i].of_node, "linksys,ns-firmware")) {
++			if (trx_idx++ == bootpartition)
++				parts[i].name = "firmware";
++			else
++				parts[i].name = "backup";
++		}
++	}
++
++	return 0;
++}
+--- /dev/null
++++ b/drivers/mtd/parsers/ofpart_linksys_ns.h
+@@ -0,0 +1,18 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++#ifndef __OFPART_LINKSYS_NS_H
++#define __OFPART_LINKSYS_NS_H
++
++#ifdef CONFIG_MTD_OF_PARTS_LINKSYS_NS
++int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++				     struct mtd_partition *parts,
++				     int nr_parts);
++#else
++static inline int linksys_ns_partitions_post_parse(struct mtd_info *mtd,
++						   struct mtd_partition *parts,
++						   int nr_parts)
++{
++	return -EOPNOTSUPP;
++}
++#endif
++
++#endif

target/linux/generic/pending-5.10/435-mtd-add-routerbootpart-parser-config.patch

@@ -16,7 +16,7 @@ Signed-off-by: Thibaut VARÈNE <[email protected]>
 
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -185,3 +185,12 @@ config MTD_REDBOOT_PARTS_READONLY
+@@ -195,3 +195,12 @@ config MTD_REDBOOT_PARTS_READONLY
  	  'FIS directory' images, enable this option.
  
  endif # MTD_REDBOOT_PARTS
@@ -31,7 +31,7 @@ Signed-off-by: Thibaut VARÈNE <[email protected]>
 +	 formatted DTS.
 --- a/drivers/mtd/parsers/Makefile
 +++ b/drivers/mtd/parsers/Makefile
-@@ -12,3 +12,4 @@ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
+@@ -13,3 +13,4 @@ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
  obj-$(CONFIG_MTD_SHARPSL_PARTS)		+= sharpslpart.o
  obj-$(CONFIG_MTD_REDBOOT_PARTS)		+= redboot.o

target/linux/generic/pending-5.4/435-mtd-add-routerbootpart-parser-config.patch

@@ -16,7 +16,7 @@ Signed-off-by: Thibaut VARÈNE <[email protected]>
 
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -185,3 +185,12 @@ config MTD_REDBOOT_PARTS_READONLY
+@@ -195,3 +195,12 @@ config MTD_REDBOOT_PARTS_READONLY
  	  'FIS directory' images, enable this option.
  
  endif # MTD_REDBOOT_PARTS
@@ -31,7 +31,7 @@ Signed-off-by: Thibaut VARÈNE <[email protected]>
 +	 formatted DTS.
 --- a/drivers/mtd/parsers/Makefile
 +++ b/drivers/mtd/parsers/Makefile
-@@ -12,3 +12,4 @@ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
+@@ -13,3 +13,4 @@ obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o
  obj-$(CONFIG_MTD_SHARPSL_PARTS)		+= sharpslpart.o
  obj-$(CONFIG_MTD_REDBOOT_PARTS)		+= redboot.o

target/linux/ipq806x/patches-5.4/0031-mtd-add-SMEM-parser-for-QCOM-platforms.patch

@@ -18,7 +18,7 @@ Signed-off-by: Ram Chandra Jangir <[email protected]>
 
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -128,6 +128,13 @@ config MTD_PARSER_TRX
+@@ -138,6 +138,13 @@ config MTD_PARSER_TRX
  	  This driver will parse TRX header and report at least two partitions:
  	  kernel and rootfs.
  
@@ -34,7 +34,7 @@ Signed-off-by: Ram Chandra Jangir <[email protected]>
  	depends on MTD_NAND_SHARPSL || MTD_NAND_TMIO || COMPILE_TEST
 --- a/drivers/mtd/parsers/Makefile
 +++ b/drivers/mtd/parsers/Makefile
-@@ -10,6 +10,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908)	+=
+@@ -11,6 +11,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_LINKSYS_NS)
  obj-$(CONFIG_MTD_PARSER_IMAGETAG)	+= parser_imagetag.o
  obj-$(CONFIG_MTD_AFS_PARTS)		+= afs.o
  obj-$(CONFIG_MTD_PARSER_TRX)		+= parser_trx.o

target/linux/kirkwood/patches-5.10/202-linksys-find-active-root.patch

@@ -5,7 +5,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
 ---
 --- a/drivers/mtd/parsers/ofpart_core.c
 +++ b/drivers/mtd/parsers/ofpart_core.c
-@@ -33,6 +33,8 @@ static bool node_has_compatible(struct d
+@@ -38,6 +38,8 @@ static bool node_has_compatible(struct d
  	return of_get_property(pp, "compatible", NULL);
  }
  
@@ -14,7 +14,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  static int parse_fixed_partitions(struct mtd_info *master,
  				  const struct mtd_partition **pparts,
  				  struct mtd_part_parser_data *data)
-@@ -42,6 +44,7 @@ static int parse_fixed_partitions(struct
+@@ -47,6 +49,7 @@ static int parse_fixed_partitions(struct
  	struct mtd_partition *parts;
  	struct device_node *mtd_node;
  	struct device_node *ofpart_node;
@@ -22,7 +22,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  	const char *partname;
  	struct device_node *pp;
  	int nr_parts, i, ret = 0;
-@@ -126,9 +129,15 @@ static int parse_fixed_partitions(struct
+@@ -131,9 +134,15 @@ static int parse_fixed_partitions(struct
  		parts[i].size = of_read_number(reg + a_cells, s_cells);
  		parts[i].of_node = pp;
  
@@ -41,7 +41,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  		parts[i].name = partname;
  
  		if (of_get_property(pp, "read-only", &len))
-@@ -244,6 +253,18 @@ static int __init ofpart_parser_init(voi
+@@ -250,6 +259,18 @@ static int __init ofpart_parser_init(voi
  	return 0;
  }
  

target/linux/kirkwood/patches-5.4/202-linksys-find-active-root.patch

@@ -5,7 +5,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
 ---
 --- a/drivers/mtd/parsers/ofpart_core.c
 +++ b/drivers/mtd/parsers/ofpart_core.c
-@@ -33,6 +33,8 @@ static bool node_has_compatible(struct d
+@@ -38,6 +38,8 @@ static bool node_has_compatible(struct d
  	return of_get_property(pp, "compatible", NULL);
  }
  
@@ -14,7 +14,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  static int parse_fixed_partitions(struct mtd_info *master,
  				  const struct mtd_partition **pparts,
  				  struct mtd_part_parser_data *data)
-@@ -42,6 +44,7 @@ static int parse_fixed_partitions(struct
+@@ -47,6 +49,7 @@ static int parse_fixed_partitions(struct
  	struct mtd_partition *parts;
  	struct device_node *mtd_node;
  	struct device_node *ofpart_node;
@@ -22,7 +22,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  	const char *partname;
  	struct device_node *pp;
  	int nr_parts, i, ret = 0;
-@@ -126,9 +129,15 @@ static int parse_fixed_partitions(struct
+@@ -131,9 +134,15 @@ static int parse_fixed_partitions(struct
  		parts[i].size = of_read_number(reg + a_cells, s_cells);
  		parts[i].of_node = pp;
  
@@ -41,7 +41,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  		parts[i].name = partname;
  
  		if (of_get_property(pp, "read-only", &len))
-@@ -241,6 +250,18 @@ static int __init ofpart_parser_init(voi
+@@ -247,6 +256,18 @@ static int __init ofpart_parser_init(voi
  	return 0;
  }
  

target/linux/lantiq/patches-5.4/0101-find_active_root.patch

@@ -1,6 +1,6 @@
 --- a/drivers/mtd/parsers/ofpart_core.c
 +++ b/drivers/mtd/parsers/ofpart_core.c
-@@ -33,6 +33,38 @@ static bool node_has_compatible(struct d
+@@ -38,6 +38,38 @@ static bool node_has_compatible(struct d
  	return of_get_property(pp, "compatible", NULL);
  }
  
@@ -39,7 +39,7 @@
  static int parse_fixed_partitions(struct mtd_info *master,
  				  const struct mtd_partition **pparts,
  				  struct mtd_part_parser_data *data)
-@@ -46,6 +78,8 @@ static int parse_fixed_partitions(struct
+@@ -51,6 +83,8 @@ static int parse_fixed_partitions(struct
  	struct device_node *pp;
  	int nr_parts, i, ret = 0;
  	bool dedicated = true;
@@ -48,7 +48,7 @@
  
  	/* Pull of_node from the master device node */
  	mtd_node = mtd_get_of_node(master);
-@@ -88,7 +122,9 @@ static int parse_fixed_partitions(struct
+@@ -93,7 +127,9 @@ static int parse_fixed_partitions(struct
  		return 0;
  
  	parts = kcalloc(nr_parts, sizeof(*parts), GFP_KERNEL);
@@ -59,7 +59,7 @@
  		return -ENOMEM;
  
  	i = 0;
-@@ -137,6 +173,11 @@ static int parse_fixed_partitions(struct
+@@ -142,6 +178,11 @@ static int parse_fixed_partitions(struct
  		if (of_get_property(pp, "lock", &len))
  			parts[i].mask_flags |= MTD_POWERUP_LOCK;
  
@@ -71,7 +71,7 @@
  		i++;
  	}
  
-@@ -146,6 +187,11 @@ static int parse_fixed_partitions(struct
+@@ -151,6 +192,11 @@ static int parse_fixed_partitions(struct
  	if (quirks && quirks->post_parse)
  		quirks->post_parse(master, parts, nr_parts);
  
@@ -83,7 +83,7 @@
  	*pparts = parts;
  	return nr_parts;
  
-@@ -156,6 +202,7 @@ ofpart_fail:
+@@ -161,6 +207,7 @@ ofpart_fail:
  ofpart_none:
  	of_node_put(pp);
  	kfree(parts);

target/linux/mediatek/patches-5.10/351-mtd-parsers-Remove-dependency-to-BRCM-architectures.patch

@@ -12,7 +12,7 @@ Signed-off-by: Hauke Mehrtens <[email protected]>
 
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -121,7 +121,7 @@ config MTD_AFS_PARTS
+@@ -131,7 +131,7 @@ config MTD_AFS_PARTS
  
  config MTD_PARSER_TRX
  	tristate "Parser for TRX format partitions"

target/linux/mediatek/patches-5.4/0351-mtd-parsers-Remove-dependency-to-BRCM-architectures.patch

@@ -12,7 +12,7 @@ Signed-off-by: Hauke Mehrtens <[email protected]>
 
 --- a/drivers/mtd/parsers/Kconfig
 +++ b/drivers/mtd/parsers/Kconfig
-@@ -121,7 +121,7 @@ config MTD_AFS_PARTS
+@@ -131,7 +131,7 @@ config MTD_AFS_PARTS
  
  config MTD_PARSER_TRX
  	tristate "Parser for TRX format partitions"

target/linux/mvebu/patches-5.10/400-find_active_root.patch

@@ -5,7 +5,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
 
 --- a/drivers/mtd/parsers/ofpart_core.c
 +++ b/drivers/mtd/parsers/ofpart_core.c
-@@ -33,6 +33,8 @@ static bool node_has_compatible(struct d
+@@ -38,6 +38,8 @@ static bool node_has_compatible(struct d
  	return of_get_property(pp, "compatible", NULL);
  }
  
@@ -14,7 +14,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  static int parse_fixed_partitions(struct mtd_info *master,
  				  const struct mtd_partition **pparts,
  				  struct mtd_part_parser_data *data)
-@@ -43,6 +45,7 @@ static int parse_fixed_partitions(struct
+@@ -48,6 +50,7 @@ static int parse_fixed_partitions(struct
  	struct device_node *mtd_node;
  	struct device_node *ofpart_node;
  	const char *partname;
@@ -22,7 +22,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  	struct device_node *pp;
  	int nr_parts, i, ret = 0;
  	bool dedicated = true;
-@@ -126,9 +129,13 @@ static int parse_fixed_partitions(struct
+@@ -131,9 +134,13 @@ static int parse_fixed_partitions(struct
  		parts[i].size = of_read_number(reg + a_cells, s_cells);
  		parts[i].of_node = pp;
  
@@ -39,7 +39,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  		parts[i].name = partname;
  
  		if (of_get_property(pp, "read-only", &len))
-@@ -244,6 +251,18 @@ static int __init ofpart_parser_init(voi
+@@ -250,6 +257,18 @@ static int __init ofpart_parser_init(voi
  	return 0;
  }
  

target/linux/mvebu/patches-5.4/400-find_active_root.patch

@@ -5,7 +5,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
 
 --- a/drivers/mtd/parsers/ofpart_core.c
 +++ b/drivers/mtd/parsers/ofpart_core.c
-@@ -33,6 +33,8 @@ static bool node_has_compatible(struct d
+@@ -38,6 +38,8 @@ static bool node_has_compatible(struct d
  	return of_get_property(pp, "compatible", NULL);
  }
  
@@ -14,7 +14,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  static int parse_fixed_partitions(struct mtd_info *master,
  				  const struct mtd_partition **pparts,
  				  struct mtd_part_parser_data *data)
-@@ -43,6 +45,7 @@ static int parse_fixed_partitions(struct
+@@ -48,6 +50,7 @@ static int parse_fixed_partitions(struct
  	struct device_node *mtd_node;
  	struct device_node *ofpart_node;
  	const char *partname;
@@ -22,7 +22,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  	struct device_node *pp;
  	int nr_parts, i, ret = 0;
  	bool dedicated = true;
-@@ -126,9 +129,13 @@ static int parse_fixed_partitions(struct
+@@ -131,9 +134,13 @@ static int parse_fixed_partitions(struct
  		parts[i].size = of_read_number(reg + a_cells, s_cells);
  		parts[i].of_node = pp;
  
@@ -39,7 +39,7 @@ Signed-off-by: Imre Kaloz <[email protected]>
  		parts[i].name = partname;
  
  		if (of_get_property(pp, "read-only", &len))
-@@ -241,6 +248,18 @@ static int __init ofpart_parser_init(voi
+@@ -247,6 +254,18 @@ static int __init ofpart_parser_init(voi
  	return 0;
  }