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kernel: backport 5.13 mtd partitioning changes

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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 <rafal@milecki.pl>
(cherry picked from commit 3fd0a4222b)
This commit is contained in:
Rafał Miłecki
2021-03-29 08:16:17 +02:00
parent 64ddac2c1c
commit 0a98a33e09
14 changed files with 324 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
target/linux/generic/backport-5.4/405-v5.13-mtd-parsers-ofpart-make-symbol-bcm4908_partitions_qu.patch Normal file
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@@ -0,0 +1,34 @@
From b87b6d2d6f540e29c3f98e1572d64e560d73d6c1 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <weiyongjun1@huawei.com>
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 <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210304064600.3279138-1-weiyongjun1@huawei.com
---
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,
};

4
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
View File

@@ -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 <ansuelsmth@gmail.com>
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 <ansuelsmth@gmail.com>
Tested-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312062830.20548-1-ansuelsmth@gmail.com
---
drivers/mtd/mtdcore.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

7
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
View File

@@ -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 <ansuelsmth@gmail.com>
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 <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312062830.20548-2-ansuelsmth@gmail.com
---
Documentation/devicetree/bindings/nvmem/nvmem.yaml | 3 ---
1 file changed, 3 deletions(-)

4
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
View File

@@ -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 <ansuelsmth@gmail.com>
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 <ansuelsmth@gmail.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312062830.20548-3-ansuelsmth@gmail.com
---
.../bindings/mtd/partitions/nvmem-cells.yaml | 99 +++++++++++++++++++
1 file changed, 99 insertions(+)

98
target/linux/generic/backport-5.4/407-v5.13-0001-dt-bindings-mtd-add-binding-for-Linksys-Northstar-pa.patch Normal file
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@@ -0,0 +1,98 @@
From 2fa7294175c76e1ec568aa75c1891fd908728c8d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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 <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312134919.7767-1-zajec5@gmail.com
---
.../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 <rafal@milecki.pl>
+
+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>;
+ };
+ };

156
target/linux/generic/backport-5.4/407-v5.13-0002-mtd-parsers-ofpart-support-Linksys-Northstar-partiti.patch Normal file
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@@ -0,0 +1,156 @@
From 7134a2d026d942210b4d26d6059c9d979ca7866e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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 <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20210312134919.7767-2-zajec5@gmail.com
---
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 <rafal@milecki.pl>
+ */
+
+#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

4
target/linux/generic/pending-5.4/435-mtd-add-routerbootpart-parser-config.patch
View File

@@ -16,7 +16,7 @@ Signed-off-by: Thibaut VARÈNE <hacks@slashdirt.org>
--- 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 <hacks@slashdirt.org>
+ 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