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Ycarus (Yannick Chabanois) 2023-06-23 21:16:44 +02:00
parent 55c3e7cde4
commit 948aebf05a
1080 changed files with 8134 additions and 328613 deletions
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65
6.1/target/linux/generic/backport-6.1/406-v6.2-0001-mtd-core-simplify-a-bit-code-find-partition-matching.patch
View file

@ -1,65 +0,0 @@
From 63db0cb35e1cb3b3c134906d1062f65513fdda2d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 4 Oct 2022 10:37:09 +0200
Subject: [PATCH] mtd: core: simplify (a bit) code find partition-matching
dynamic OF node
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
1. Don't hardcode "partition-" string twice
2. Use simpler logic & use ->name to avoid of_property_read_string()
3. Use mtd_get_of_node() helper
Cc: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221004083710.27704-1-zajec5@gmail.com
---
drivers/mtd/mtdcore.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -551,18 +551,16 @@ static void mtd_check_of_node(struct mtd
struct device_node *partitions, *parent_dn, *mtd_dn = NULL;
const char *pname, *prefix = "partition-";
int plen, mtd_name_len, offset, prefix_len;
- struct mtd_info *parent;
bool found = false;
/* Check if MTD already has a device node */
- if (dev_of_node(&mtd->dev))
+ if (mtd_get_of_node(mtd))
return;
/* Check if a partitions node exist */
if (!mtd_is_partition(mtd))
return;
- parent = mtd->parent;
- parent_dn = of_node_get(dev_of_node(&parent->dev));
+ parent_dn = of_node_get(mtd_get_of_node(mtd->parent));
if (!parent_dn)
return;
@@ -575,15 +573,15 @@ static void mtd_check_of_node(struct mtd
/* Search if a partition is defined with the same name */
for_each_child_of_node(partitions, mtd_dn) {
- offset = 0;
-
/* Skip partition with no/wrong prefix */
- if (!of_node_name_prefix(mtd_dn, "partition-"))
+ if (!of_node_name_prefix(mtd_dn, prefix))
continue;
/* Label have priority. Check that first */
- if (of_property_read_string(mtd_dn, "label", &pname)) {
- of_property_read_string(mtd_dn, "name", &pname);
+ if (!of_property_read_string(mtd_dn, "label", &pname)) {
+ offset = 0;
+ } else {
+ pname = mtd_dn->name;
offset = prefix_len;
}

84
6.1/target/linux/generic/backport-6.1/406-v6.2-0002-mtd-core-try-to-find-OF-node-for-every-MTD-partition.patch
View file

@ -1,84 +0,0 @@
From ddb8cefb7af288950447ca6eeeafb09977dab56f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Tue, 4 Oct 2022 10:37:10 +0200
Subject: [PATCH] mtd: core: try to find OF node for every MTD partition
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
So far this feature was limited to the top-level "nvmem-cells" node.
There are multiple parsers creating partitions and subpartitions
dynamically. Extend that code to handle them too.
This allows finding partition-* node for every MTD (sub)partition.
Random example:
partitions {
compatible = "brcm,bcm947xx-cfe-partitions";
partition-firmware {
compatible = "brcm,trx";
partition-loader {
};
};
};
Cc: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221004083710.27704-2-zajec5@gmail.com
---
drivers/mtd/mtdcore.c | 18 ++++++------------
1 file changed, 6 insertions(+), 12 deletions(-)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -551,20 +551,22 @@ static void mtd_check_of_node(struct mtd
struct device_node *partitions, *parent_dn, *mtd_dn = NULL;
const char *pname, *prefix = "partition-";
int plen, mtd_name_len, offset, prefix_len;
- bool found = false;
/* Check if MTD already has a device node */
if (mtd_get_of_node(mtd))
return;
- /* Check if a partitions node exist */
if (!mtd_is_partition(mtd))
return;
+
parent_dn = of_node_get(mtd_get_of_node(mtd->parent));
if (!parent_dn)
return;
- partitions = of_get_child_by_name(parent_dn, "partitions");
+ if (mtd_is_partition(mtd->parent))
+ partitions = of_node_get(parent_dn);
+ else
+ partitions = of_get_child_by_name(parent_dn, "partitions");
if (!partitions)
goto exit_parent;
@@ -588,19 +590,11 @@ static void mtd_check_of_node(struct mtd
plen = strlen(pname) - offset;
if (plen == mtd_name_len &&
!strncmp(mtd->name, pname + offset, plen)) {
- found = true;
+ mtd_set_of_node(mtd, mtd_dn);
break;
}
}
- if (!found)
- goto exit_partitions;
-
- /* Set of_node only for nvmem */
- if (of_device_is_compatible(mtd_dn, "nvmem-cells"))
- mtd_set_of_node(mtd, mtd_dn);
-
-exit_partitions:
of_node_put(partitions);
exit_parent:
of_node_put(parent_dn);

47
6.1/target/linux/generic/backport-6.1/408-v6.2-mtd-core-set-ROOT_DEV-for-partitions-marked-as-rootf.patch
View file

@ -1,47 +0,0 @@
From 26422ac78e9d8767bd4aabfbae616b15edbf6a1b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sat, 22 Oct 2022 23:13:18 +0200
Subject: [PATCH] mtd: core: set ROOT_DEV for partitions marked as rootfs in DT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This adds support for "linux,rootfs" binding that is used to mark flash
partition containing rootfs. It's useful for devices using device tree
that don't have bootloader passing root info in cmdline.
Signed-off-by: Rafa? Mi?ecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221022211318.32009-2-zajec5@gmail.com
---
drivers/mtd/mtdcore.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -28,6 +28,7 @@
#include <linux/leds.h>
#include <linux/debugfs.h>
#include <linux/nvmem-provider.h>
+#include <linux/root_dev.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
@@ -737,6 +738,17 @@ int add_mtd_device(struct mtd_info *mtd)
not->add(mtd);
mutex_unlock(&mtd_table_mutex);
+
+ if (of_find_property(mtd_get_of_node(mtd), "linux,rootfs", NULL)) {
+ if (IS_BUILTIN(CONFIG_MTD)) {
+ pr_info("mtd: setting mtd%d (%s) as root device\n", mtd->index, mtd->name);
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, mtd->index);
+ } else {
+ pr_warn("mtd: can't set mtd%d (%s) as root device - mtd must be builtin\n",
+ mtd->index, mtd->name);
+ }
+ }
+
/* We _know_ we aren't being removed, because
our caller is still holding us here. So none
of this try_ nonsense, and no bitching about it

229
6.1/target/linux/generic/backport-6.1/421-v6.2-mtd-parsers-add-TP-Link-SafeLoader-partitions-table-.patch
View file

@ -1,229 +0,0 @@
From aec4d5f5ffd0f0092bd9dc21ea90e0bc237d4b74 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sat, 15 Oct 2022 11:29:50 +0200
Subject: [PATCH] mtd: parsers: add TP-Link SafeLoader partitions table parser
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This parser deals with most TP-Link home routers. It reads info about
partitions and registers them in the MTD subsystem.
Example from TP-Link Archer C5 V2:
spi-nor spi0.0: s25fl128s1 (16384 Kbytes)
15 tplink-safeloader partitions found on MTD device spi0.0
Creating 15 MTD partitions on "spi0.0":
0x000000000000-0x000000040000 : "fs-uboot"
0x000000040000-0x000000440000 : "os-image"
0x000000440000-0x000000e40000 : "rootfs"
0x000000e40000-0x000000e40200 : "default-mac"
0x000000e40200-0x000000e40400 : "pin"
0x000000e40400-0x000000e40600 : "product-info"
0x000000e50000-0x000000e60000 : "partition-table"
0x000000e60000-0x000000e60200 : "soft-version"
0x000000e61000-0x000000e70000 : "support-list"
0x000000e70000-0x000000e80000 : "profile"
0x000000e80000-0x000000e90000 : "default-config"
0x000000e90000-0x000000ee0000 : "user-config"
0x000000ee0000-0x000000fe0000 : "log"
0x000000fe0000-0x000000ff0000 : "radio_bk"
0x000000ff0000-0x000001000000 : "radio"
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221015092950.27467-2-zajec5@gmail.com
---
drivers/mtd/parsers/Kconfig | 15 +++
drivers/mtd/parsers/Makefile | 1 +
drivers/mtd/parsers/tplink_safeloader.c | 150 ++++++++++++++++++++++++
3 files changed, 166 insertions(+)
create mode 100644 drivers/mtd/parsers/tplink_safeloader.c
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -123,6 +123,21 @@ config MTD_AFS_PARTS
for your particular device. It won't happen automatically. The
'physmap' map driver (CONFIG_MTD_PHYSMAP) does this, for example.
+config MTD_PARSER_TPLINK_SAFELOADER
+ tristate "TP-Link Safeloader partitions parser"
+ depends on MTD && (ARCH_BCM_5301X || ATH79 || SOC_MT7620 || SOC_MT7621 || COMPILE_TEST)
+ help
+ TP-Link home routers use flash partitions to store various data. Info
+ about flash space layout is stored in a partitions table using a
+ custom ASCII-based format.
+
+ That format was first found in devices with SafeLoader bootloader and
+ was named after it. Later it was adapted to CFE and U-Boot
+ bootloaders.
+
+ This driver reads partitions table, parses it and creates MTD
+ partitions.
+
config MTD_PARSER_TRX
tristate "Parser for TRX format partitions"
depends on MTD && (BCM47XX || ARCH_BCM_5301X || ARCH_MEDIATEK || RALINK || COMPILE_TEST)
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -10,6 +10,7 @@ ofpart-$(CONFIG_MTD_OF_PARTS_BCM4908) +=
ofpart-$(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-$(CONFIG_MTD_PARSER_TPLINK_SAFELOADER) += tplink_safeloader.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
obj-$(CONFIG_MTD_SERCOMM_PARTS) += scpart.o
obj-$(CONFIG_MTD_SHARPSL_PARTS) += sharpslpart.o
--- /dev/null
+++ b/drivers/mtd/parsers/tplink_safeloader.c
@@ -0,0 +1,150 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright © 2022 Rafał Miłecki <rafal@milecki.pl>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+#define TPLINK_SAFELOADER_DATA_OFFSET 4
+#define TPLINK_SAFELOADER_MAX_PARTS 32
+
+struct safeloader_cmn_header {
+ __be32 size;
+ uint32_t unused;
+} __packed;
+
+static void *mtd_parser_tplink_safeloader_read_table(struct mtd_info *mtd)
+{
+ struct safeloader_cmn_header hdr;
+ struct device_node *np;
+ size_t bytes_read;
+ size_t offset;
+ size_t size;
+ char *buf;
+ int err;
+
+ np = mtd_get_of_node(mtd);
+ if (mtd_is_partition(mtd))
+ of_node_get(np);
+ else
+ np = of_get_child_by_name(np, "partitions");
+
+ if (of_property_read_u32(np, "partitions-table-offset", (u32 *)&offset)) {
+ pr_err("Failed to get partitions table offset\n");
+ goto err_put;
+ }
+
+ err = mtd_read(mtd, offset, sizeof(hdr), &bytes_read, (uint8_t *)&hdr);
+ if (err && !mtd_is_bitflip(err)) {
+ pr_err("Failed to read from %s at 0x%zx\n", mtd->name, offset);
+ goto err_put;
+ }
+
+ size = be32_to_cpu(hdr.size);
+
+ buf = kmalloc(size + 1, GFP_KERNEL);
+ if (!buf)
+ goto err_put;
+
+ err = mtd_read(mtd, offset + sizeof(hdr), size, &bytes_read, buf);
+ if (err && !mtd_is_bitflip(err)) {
+ pr_err("Failed to read from %s at 0x%zx\n", mtd->name, offset + sizeof(hdr));
+ goto err_kfree;
+ }
+
+ buf[size] = '\0';
+
+ of_node_put(np);
+
+ return buf;
+
+err_kfree:
+ kfree(buf);
+err_put:
+ of_node_put(np);
+ return NULL;
+}
+
+static int mtd_parser_tplink_safeloader_parse(struct mtd_info *mtd,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct mtd_partition *parts;
+ char name[65];
+ size_t offset;
+ size_t bytes;
+ char *buf;
+ int idx;
+ int err;
+
+ parts = kcalloc(TPLINK_SAFELOADER_MAX_PARTS, sizeof(*parts), GFP_KERNEL);
+ if (!parts) {
+ err = -ENOMEM;
+ goto err_out;
+ }
+
+ buf = mtd_parser_tplink_safeloader_read_table(mtd);
+ if (!buf) {
+ err = -ENOENT;
+ goto err_out;
+ }
+
+ for (idx = 0, offset = TPLINK_SAFELOADER_DATA_OFFSET;
+ idx < TPLINK_SAFELOADER_MAX_PARTS &&
+ sscanf(buf + offset, "partition %64s base 0x%llx size 0x%llx%zn\n",
+ name, &parts[idx].offset, &parts[idx].size, &bytes) == 3;
+ idx++, offset += bytes + 1) {
+ parts[idx].name = kstrdup(name, GFP_KERNEL);
+ if (!parts[idx].name) {
+ err = -ENOMEM;
+ goto err_free;
+ }
+ }
+
+ if (idx == TPLINK_SAFELOADER_MAX_PARTS)
+ pr_warn("Reached maximum number of partitions!\n");
+
+ kfree(buf);
+
+ *pparts = parts;
+
+ return idx;
+
+err_free:
+ for (idx -= 1; idx >= 0; idx--)
+ kfree(parts[idx].name);
+err_out:
+ return err;
+};
+
+static void mtd_parser_tplink_safeloader_cleanup(const struct mtd_partition *pparts,
+ int nr_parts)
+{
+ int i;
+
+ for (i = 0; i < nr_parts; i++)
+ kfree(pparts[i].name);
+
+ kfree(pparts);
+}
+
+static const struct of_device_id mtd_parser_tplink_safeloader_of_match_table[] = {
+ { .compatible = "tplink,safeloader-partitions" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mtd_parser_tplink_safeloader_of_match_table);
+
+static struct mtd_part_parser mtd_parser_tplink_safeloader = {
+ .parse_fn = mtd_parser_tplink_safeloader_parse,
+ .cleanup = mtd_parser_tplink_safeloader_cleanup,
+ .name = "tplink-safeloader",
+ .of_match_table = mtd_parser_tplink_safeloader_of_match_table,
+};
+module_mtd_part_parser(mtd_parser_tplink_safeloader);
+
+MODULE_LICENSE("GPL");