[OpenWrt-Devel] [PATCH 1/2] kernel: fix include of myloader.o since kernel 5.4
Adrian Schmutzler
freifunk at adrianschmutzler.de
Mon Apr 13 12:43:43 EDT 2020
Between 4.19 and 5.4, mtd parsers have been moved to "parsers"
subdirectory. Based on this, the selection of myloader.o was
also moved to that subdirectory, while the Kconfig and our local
myloader.c file remained in /drivers/mtd.
This resulted in linking errors like the following (on ath25 at 5.4):
make[8]: *** No rule to make target 'drivers/mtd/parsers/myloader.o', ...
needed by 'drivers/mtd/parsers/built-in.a'. Stop.
make[7]: *** [scripts/Makefile.build:500: drivers/mtd/parsers] Error 2
make[6]: *** [scripts/Makefile.build:500: drivers/mtd] Error 2
Since myloader.c is not too big, this patch moves it to the kernel patches,
allowing to adjust the path for kernel 5.4 and keeping Makefiles and
file paths better in sync.
Other patches have been refreshed accordingly.
Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
---
.../405-mtd-tp-link-partition-parser.patch | 6 +-
.../generic/files/drivers/mtd/myloader.c | 182 ---------------
...30-mtd-add-myloader-partition-parser.patch | 190 +++++++++++++++-
...30-mtd-add-myloader-partition-parser.patch | 190 +++++++++++++++-
...30-mtd-add-myloader-partition-parser.patch | 207 ++++++++++++++++--
...cat-add-dt-driver-for-concat-devices.patch | 2 +-
6 files changed, 569 insertions(+), 208 deletions(-)
delete mode 100644 target/linux/generic/files/drivers/mtd/myloader.c
diff --git a/target/linux/ath79/patches-5.4/405-mtd-tp-link-partition-parser.patch b/target/linux/ath79/patches-5.4/405-mtd-tp-link-partition-parser.patch
index 11d1869544..71951a4ede 100644
--- a/target/linux/ath79/patches-5.4/405-mtd-tp-link-partition-parser.patch
+++ b/target/linux/ath79/patches-5.4/405-mtd-tp-link-partition-parser.patch
@@ -1,8 +1,8 @@
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
-@@ -62,6 +62,12 @@ config MTD_MYLOADER_PARTS
- You will still need the parsing functions to be called by the driver
- for your particular device. It won't happen automatically.
+@@ -46,6 +46,12 @@ menu "Partition parsers"
+ source "drivers/mtd/parsers/Kconfig"
+ endmenu
+config MTD_TPLINK_PARTS
+ tristate "TP-Link AR7XXX/AR9XXX partitioning support"
diff --git a/target/linux/generic/files/drivers/mtd/myloader.c b/target/linux/generic/files/drivers/mtd/myloader.c
deleted file mode 100644
index 7532d454ed..0000000000
--- a/target/linux/generic/files/drivers/mtd/myloader.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Parse MyLoader-style flash partition tables and produce a Linux partition
- * array to match.
- *
- * Copyright (C) 2007-2009 Gabor Juhos <juhosg at openwrt.org>
- *
- * This file was based on drivers/mtd/redboot.c
- * Author: Red Hat, Inc. - David Woodhouse <dwmw2 at cambridge.redhat.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/byteorder/generic.h>
-#include <linux/myloader.h>
-
-#define BLOCK_LEN_MIN 0x10000
-#define PART_NAME_LEN 32
-
-struct part_data {
- struct mylo_partition_table tab;
- char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
-};
-
-static int myloader_parse_partitions(struct mtd_info *master,
- const struct mtd_partition **pparts,
- struct mtd_part_parser_data *data)
-{
- struct part_data *buf;
- struct mylo_partition_table *tab;
- struct mylo_partition *part;
- struct mtd_partition *mtd_parts;
- struct mtd_partition *mtd_part;
- int num_parts;
- int ret, i;
- size_t retlen;
- char *names;
- unsigned long offset;
- unsigned long blocklen;
-
- buf = vmalloc(sizeof(*buf));
- if (!buf) {
- return -ENOMEM;
- goto out;
- }
- tab = &buf->tab;
-
- blocklen = master->erasesize;
- if (blocklen < BLOCK_LEN_MIN)
- blocklen = BLOCK_LEN_MIN;
-
- offset = blocklen;
-
- /* Find the partition table */
- for (i = 0; i < 4; i++, offset += blocklen) {
- printk(KERN_DEBUG "%s: searching for MyLoader partition table"
- " at offset 0x%lx\n", master->name, offset);
-
- ret = mtd_read(master, offset, sizeof(*buf), &retlen,
- (void *)buf);
- if (ret)
- goto out_free_buf;
-
- if (retlen != sizeof(*buf)) {
- ret = -EIO;
- goto out_free_buf;
- }
-
- /* Check for Partition Table magic number */
- if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
- break;
-
- }
-
- if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
- printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
- master->name);
- ret = 0;
- goto out_free_buf;
- }
-
- /* The MyLoader and the Partition Table is always present */
- num_parts = 2;
-
- /* Detect number of used partitions */
- for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
- part = &tab->partitions[i];
-
- if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
- continue;
-
- num_parts++;
- }
-
- mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
- num_parts * PART_NAME_LEN), GFP_KERNEL);
-
- if (!mtd_parts) {
- ret = -ENOMEM;
- goto out_free_buf;
- }
-
- mtd_part = mtd_parts;
- names = (char *)&mtd_parts[num_parts];
-
- strncpy(names, "myloader", PART_NAME_LEN);
- mtd_part->name = names;
- mtd_part->offset = 0;
- mtd_part->size = offset;
- mtd_part->mask_flags = MTD_WRITEABLE;
- mtd_part++;
- names += PART_NAME_LEN;
-
- strncpy(names, "partition_table", PART_NAME_LEN);
- mtd_part->name = names;
- mtd_part->offset = offset;
- mtd_part->size = blocklen;
- mtd_part->mask_flags = MTD_WRITEABLE;
- mtd_part++;
- names += PART_NAME_LEN;
-
- for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
- part = &tab->partitions[i];
-
- if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
- continue;
-
- if ((buf->names[i][0]) && (buf->names[i][0] != '\xff'))
- strncpy(names, buf->names[i], PART_NAME_LEN);
- else
- snprintf(names, PART_NAME_LEN, "partition%d", i);
-
- mtd_part->offset = le32_to_cpu(part->addr);
- mtd_part->size = le32_to_cpu(part->size);
- mtd_part->name = names;
- mtd_part++;
- names += PART_NAME_LEN;
- }
-
- *pparts = mtd_parts;
- ret = num_parts;
-
- out_free_buf:
- vfree(buf);
- out:
- return ret;
-}
-
-static struct mtd_part_parser myloader_mtd_parser = {
- .owner = THIS_MODULE,
- .parse_fn = myloader_parse_partitions,
- .name = "MyLoader",
-};
-
-static int __init myloader_mtd_parser_init(void)
-{
- register_mtd_parser(&myloader_mtd_parser);
-
- return 0;
-}
-
-static void __exit myloader_mtd_parser_exit(void)
-{
- deregister_mtd_parser(&myloader_mtd_parser);
-}
-
-module_init(myloader_mtd_parser_init);
-module_exit(myloader_mtd_parser_exit);
-
-MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
-MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
-MODULE_LICENSE("GPL v2");
diff --git a/target/linux/generic/pending-4.14/430-mtd-add-myloader-partition-parser.patch b/target/linux/generic/pending-4.14/430-mtd-add-myloader-partition-parser.patch
index 889c452057..bf6670a91e 100644
--- a/target/linux/generic/pending-4.14/430-mtd-add-myloader-partition-parser.patch
+++ b/target/linux/generic/pending-4.14/430-mtd-add-myloader-partition-parser.patch
@@ -5,10 +5,8 @@ Subject: Add myloader partition table parser
lede-commit: d8bf22859b51faa09d22c056fe221a45d2f7a3b8
Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
----
- drivers/mtd/Kconfig | 16 ++++++++++++++++
- drivers/mtd/Makefile | 1 +
- 2 files changed, 17 insertions(+)
+[add myloader.c to patch]
+Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -45,3 +43,187 @@ Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
obj-y += parsers/
# 'Users' - code which presents functionality to userspace.
+--- /dev/null
++++ b/drivers/mtd/myloader.c
+@@ -0,0 +1,181 @@
++/*
++ * Parse MyLoader-style flash partition tables and produce a Linux partition
++ * array to match.
++ *
++ * Copyright (C) 2007-2009 Gabor Juhos <juhosg at openwrt.org>
++ *
++ * This file was based on drivers/mtd/redboot.c
++ * Author: Red Hat, Inc. - David Woodhouse <dwmw2 at cambridge.redhat.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/vmalloc.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/byteorder/generic.h>
++#include <linux/myloader.h>
++
++#define BLOCK_LEN_MIN 0x10000
++#define PART_NAME_LEN 32
++
++struct part_data {
++ struct mylo_partition_table tab;
++ char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
++};
++
++static int myloader_parse_partitions(struct mtd_info *master,
++ const struct mtd_partition **pparts,
++ struct mtd_part_parser_data *data)
++{
++ struct part_data *buf;
++ struct mylo_partition_table *tab;
++ struct mylo_partition *part;
++ struct mtd_partition *mtd_parts;
++ struct mtd_partition *mtd_part;
++ int num_parts;
++ int ret, i;
++ size_t retlen;
++ char *names;
++ unsigned long offset;
++ unsigned long blocklen;
++
++ buf = vmalloc(sizeof(*buf));
++ if (!buf) {
++ return -ENOMEM;
++ goto out;
++ }
++ tab = &buf->tab;
++
++ blocklen = master->erasesize;
++ if (blocklen < BLOCK_LEN_MIN)
++ blocklen = BLOCK_LEN_MIN;
++
++ offset = blocklen;
++
++ /* Find the partition table */
++ for (i = 0; i < 4; i++, offset += blocklen) {
++ printk(KERN_DEBUG "%s: searching for MyLoader partition table"
++ " at offset 0x%lx\n", master->name, offset);
++
++ ret = mtd_read(master, offset, sizeof(*buf), &retlen,
++ (void *)buf);
++ if (ret)
++ goto out_free_buf;
++
++ if (retlen != sizeof(*buf)) {
++ ret = -EIO;
++ goto out_free_buf;
++ }
++
++ /* Check for Partition Table magic number */
++ if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
++ break;
++
++ }
++
++ if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
++ printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
++ master->name);
++ ret = 0;
++ goto out_free_buf;
++ }
++
++ /* The MyLoader and the Partition Table is always present */
++ num_parts = 2;
++
++ /* Detect number of used partitions */
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ num_parts++;
++ }
++
++ mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
++ num_parts * PART_NAME_LEN), GFP_KERNEL);
++
++ if (!mtd_parts) {
++ ret = -ENOMEM;
++ goto out_free_buf;
++ }
++
++ mtd_part = mtd_parts;
++ names = (char *)&mtd_parts[num_parts];
++
++ strncpy(names, "myloader", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = 0;
++ mtd_part->size = offset;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ strncpy(names, "partition_table", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = offset;
++ mtd_part->size = blocklen;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ if ((buf->names[i][0]) && (buf->names[i][0] != '\xff'))
++ strncpy(names, buf->names[i], PART_NAME_LEN);
++ else
++ snprintf(names, PART_NAME_LEN, "partition%d", i);
++
++ mtd_part->offset = le32_to_cpu(part->addr);
++ mtd_part->size = le32_to_cpu(part->size);
++ mtd_part->name = names;
++ mtd_part++;
++ names += PART_NAME_LEN;
++ }
++
++ *pparts = mtd_parts;
++ ret = num_parts;
++
++ out_free_buf:
++ vfree(buf);
++ out:
++ return ret;
++}
++
++static struct mtd_part_parser myloader_mtd_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = myloader_parse_partitions,
++ .name = "MyLoader",
++};
++
++static int __init myloader_mtd_parser_init(void)
++{
++ register_mtd_parser(&myloader_mtd_parser);
++
++ return 0;
++}
++
++static void __exit myloader_mtd_parser_exit(void)
++{
++ deregister_mtd_parser(&myloader_mtd_parser);
++}
++
++module_init(myloader_mtd_parser_init);
++module_exit(myloader_mtd_parser_exit);
++
++MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
++MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/generic/pending-4.19/430-mtd-add-myloader-partition-parser.patch b/target/linux/generic/pending-4.19/430-mtd-add-myloader-partition-parser.patch
index bd49893dd8..149caf3c6c 100644
--- a/target/linux/generic/pending-4.19/430-mtd-add-myloader-partition-parser.patch
+++ b/target/linux/generic/pending-4.19/430-mtd-add-myloader-partition-parser.patch
@@ -5,10 +5,8 @@ Subject: Add myloader partition table parser
lede-commit: d8bf22859b51faa09d22c056fe221a45d2f7a3b8
Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
----
- drivers/mtd/Kconfig | 16 ++++++++++++++++
- drivers/mtd/Makefile | 1 +
- 2 files changed, 17 insertions(+)
+[add myloader.c to patch]
+Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -45,3 +43,187 @@ Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
obj-y += parsers/
# 'Users' - code which presents functionality to userspace.
+--- /dev/null
++++ b/drivers/mtd/myloader.c
+@@ -0,0 +1,181 @@
++/*
++ * Parse MyLoader-style flash partition tables and produce a Linux partition
++ * array to match.
++ *
++ * Copyright (C) 2007-2009 Gabor Juhos <juhosg at openwrt.org>
++ *
++ * This file was based on drivers/mtd/redboot.c
++ * Author: Red Hat, Inc. - David Woodhouse <dwmw2 at cambridge.redhat.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/vmalloc.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/byteorder/generic.h>
++#include <linux/myloader.h>
++
++#define BLOCK_LEN_MIN 0x10000
++#define PART_NAME_LEN 32
++
++struct part_data {
++ struct mylo_partition_table tab;
++ char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
++};
++
++static int myloader_parse_partitions(struct mtd_info *master,
++ const struct mtd_partition **pparts,
++ struct mtd_part_parser_data *data)
++{
++ struct part_data *buf;
++ struct mylo_partition_table *tab;
++ struct mylo_partition *part;
++ struct mtd_partition *mtd_parts;
++ struct mtd_partition *mtd_part;
++ int num_parts;
++ int ret, i;
++ size_t retlen;
++ char *names;
++ unsigned long offset;
++ unsigned long blocklen;
++
++ buf = vmalloc(sizeof(*buf));
++ if (!buf) {
++ return -ENOMEM;
++ goto out;
++ }
++ tab = &buf->tab;
++
++ blocklen = master->erasesize;
++ if (blocklen < BLOCK_LEN_MIN)
++ blocklen = BLOCK_LEN_MIN;
++
++ offset = blocklen;
++
++ /* Find the partition table */
++ for (i = 0; i < 4; i++, offset += blocklen) {
++ printk(KERN_DEBUG "%s: searching for MyLoader partition table"
++ " at offset 0x%lx\n", master->name, offset);
++
++ ret = mtd_read(master, offset, sizeof(*buf), &retlen,
++ (void *)buf);
++ if (ret)
++ goto out_free_buf;
++
++ if (retlen != sizeof(*buf)) {
++ ret = -EIO;
++ goto out_free_buf;
++ }
++
++ /* Check for Partition Table magic number */
++ if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
++ break;
++
++ }
++
++ if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
++ printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
++ master->name);
++ ret = 0;
++ goto out_free_buf;
++ }
++
++ /* The MyLoader and the Partition Table is always present */
++ num_parts = 2;
++
++ /* Detect number of used partitions */
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ num_parts++;
++ }
++
++ mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
++ num_parts * PART_NAME_LEN), GFP_KERNEL);
++
++ if (!mtd_parts) {
++ ret = -ENOMEM;
++ goto out_free_buf;
++ }
++
++ mtd_part = mtd_parts;
++ names = (char *)&mtd_parts[num_parts];
++
++ strncpy(names, "myloader", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = 0;
++ mtd_part->size = offset;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ strncpy(names, "partition_table", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = offset;
++ mtd_part->size = blocklen;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ if ((buf->names[i][0]) && (buf->names[i][0] != '\xff'))
++ strncpy(names, buf->names[i], PART_NAME_LEN);
++ else
++ snprintf(names, PART_NAME_LEN, "partition%d", i);
++
++ mtd_part->offset = le32_to_cpu(part->addr);
++ mtd_part->size = le32_to_cpu(part->size);
++ mtd_part->name = names;
++ mtd_part++;
++ names += PART_NAME_LEN;
++ }
++
++ *pparts = mtd_parts;
++ ret = num_parts;
++
++ out_free_buf:
++ vfree(buf);
++ out:
++ return ret;
++}
++
++static struct mtd_part_parser myloader_mtd_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = myloader_parse_partitions,
++ .name = "MyLoader",
++};
++
++static int __init myloader_mtd_parser_init(void)
++{
++ register_mtd_parser(&myloader_mtd_parser);
++
++ return 0;
++}
++
++static void __exit myloader_mtd_parser_exit(void)
++{
++ deregister_mtd_parser(&myloader_mtd_parser);
++}
++
++module_init(myloader_mtd_parser_init);
++module_exit(myloader_mtd_parser_exit);
++
++MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
++MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/generic/pending-5.4/430-mtd-add-myloader-partition-parser.patch b/target/linux/generic/pending-5.4/430-mtd-add-myloader-partition-parser.patch
index f66da83924..2fd24a420c 100644
--- a/target/linux/generic/pending-5.4/430-mtd-add-myloader-partition-parser.patch
+++ b/target/linux/generic/pending-5.4/430-mtd-add-myloader-partition-parser.patch
@@ -5,17 +5,16 @@ Subject: Add myloader partition table parser
lede-commit: d8bf22859b51faa09d22c056fe221a45d2f7a3b8
Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
----
- drivers/mtd/Kconfig | 16 ++++++++++++++++
- drivers/mtd/Makefile | 1 +
- 2 files changed, 17 insertions(+)
+[adjust for kernel 5.4, add myloader.c to patch]
+Signed-off-by: Adrian Schmutzler <freifunk at adrianschmutzler.de>
---- a/drivers/mtd/Kconfig
-+++ b/drivers/mtd/Kconfig
-@@ -46,6 +46,22 @@ menu "Partition parsers"
- source "drivers/mtd/parsers/Kconfig"
- endmenu
+--- a/drivers/mtd/parsers/Kconfig
++++ b/drivers/mtd/parsers/Kconfig
+@@ -160,3 +160,19 @@ config MTD_REDBOOT_PARTS_READONLY
+ 'FIS directory' images, enable this option.
+ endif # MTD_REDBOOT_PARTS
++
+config MTD_MYLOADER_PARTS
+ tristate "MyLoader partition parsing"
+ depends on ADM5120 || ATH25 || ATH79
@@ -31,14 +30,194 @@ Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
+
+ You will still need the parsing functions to be called by the driver
+ for your particular device. It won't happen automatically.
-+
- comment "User Modules And Translation Layers"
-
- #
--- a/drivers/mtd/parsers/Makefile
+++ b/drivers/mtd/parsers/Makefile
@@ -9,3 +9,4 @@ 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
-+obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
++obj-$(CONFIG_MTD_MYLOADER_PARTS) += myloader.o
+--- /dev/null
++++ b/drivers/mtd/parsers/myloader.c
+@@ -0,0 +1,181 @@
++/*
++ * Parse MyLoader-style flash partition tables and produce a Linux partition
++ * array to match.
++ *
++ * Copyright (C) 2007-2009 Gabor Juhos <juhosg at openwrt.org>
++ *
++ * This file was based on drivers/mtd/redboot.c
++ * Author: Red Hat, Inc. - David Woodhouse <dwmw2 at cambridge.redhat.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License version 2 as published
++ * by the Free Software Foundation.
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/version.h>
++#include <linux/slab.h>
++#include <linux/init.h>
++#include <linux/vmalloc.h>
++#include <linux/mtd/mtd.h>
++#include <linux/mtd/partitions.h>
++#include <linux/byteorder/generic.h>
++#include <linux/myloader.h>
++
++#define BLOCK_LEN_MIN 0x10000
++#define PART_NAME_LEN 32
++
++struct part_data {
++ struct mylo_partition_table tab;
++ char names[MYLO_MAX_PARTITIONS][PART_NAME_LEN];
++};
++
++static int myloader_parse_partitions(struct mtd_info *master,
++ const struct mtd_partition **pparts,
++ struct mtd_part_parser_data *data)
++{
++ struct part_data *buf;
++ struct mylo_partition_table *tab;
++ struct mylo_partition *part;
++ struct mtd_partition *mtd_parts;
++ struct mtd_partition *mtd_part;
++ int num_parts;
++ int ret, i;
++ size_t retlen;
++ char *names;
++ unsigned long offset;
++ unsigned long blocklen;
++
++ buf = vmalloc(sizeof(*buf));
++ if (!buf) {
++ return -ENOMEM;
++ goto out;
++ }
++ tab = &buf->tab;
++
++ blocklen = master->erasesize;
++ if (blocklen < BLOCK_LEN_MIN)
++ blocklen = BLOCK_LEN_MIN;
++
++ offset = blocklen;
++
++ /* Find the partition table */
++ for (i = 0; i < 4; i++, offset += blocklen) {
++ printk(KERN_DEBUG "%s: searching for MyLoader partition table"
++ " at offset 0x%lx\n", master->name, offset);
++
++ ret = mtd_read(master, offset, sizeof(*buf), &retlen,
++ (void *)buf);
++ if (ret)
++ goto out_free_buf;
++
++ if (retlen != sizeof(*buf)) {
++ ret = -EIO;
++ goto out_free_buf;
++ }
++
++ /* Check for Partition Table magic number */
++ if (tab->magic == le32_to_cpu(MYLO_MAGIC_PARTITIONS))
++ break;
++
++ }
++
++ if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
++ printk(KERN_DEBUG "%s: no MyLoader partition table found\n",
++ master->name);
++ ret = 0;
++ goto out_free_buf;
++ }
++
++ /* The MyLoader and the Partition Table is always present */
++ num_parts = 2;
++
++ /* Detect number of used partitions */
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ num_parts++;
++ }
++
++ mtd_parts = kzalloc((num_parts * sizeof(*mtd_part) +
++ num_parts * PART_NAME_LEN), GFP_KERNEL);
++
++ if (!mtd_parts) {
++ ret = -ENOMEM;
++ goto out_free_buf;
++ }
++
++ mtd_part = mtd_parts;
++ names = (char *)&mtd_parts[num_parts];
++
++ strncpy(names, "myloader", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = 0;
++ mtd_part->size = offset;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ strncpy(names, "partition_table", PART_NAME_LEN);
++ mtd_part->name = names;
++ mtd_part->offset = offset;
++ mtd_part->size = blocklen;
++ mtd_part->mask_flags = MTD_WRITEABLE;
++ mtd_part++;
++ names += PART_NAME_LEN;
++
++ for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
++ part = &tab->partitions[i];
++
++ if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
++ continue;
++
++ if ((buf->names[i][0]) && (buf->names[i][0] != '\xff'))
++ strncpy(names, buf->names[i], PART_NAME_LEN);
++ else
++ snprintf(names, PART_NAME_LEN, "partition%d", i);
++
++ mtd_part->offset = le32_to_cpu(part->addr);
++ mtd_part->size = le32_to_cpu(part->size);
++ mtd_part->name = names;
++ mtd_part++;
++ names += PART_NAME_LEN;
++ }
++
++ *pparts = mtd_parts;
++ ret = num_parts;
++
++ out_free_buf:
++ vfree(buf);
++ out:
++ return ret;
++}
++
++static struct mtd_part_parser myloader_mtd_parser = {
++ .owner = THIS_MODULE,
++ .parse_fn = myloader_parse_partitions,
++ .name = "MyLoader",
++};
++
++static int __init myloader_mtd_parser_init(void)
++{
++ register_mtd_parser(&myloader_mtd_parser);
++
++ return 0;
++}
++
++static void __exit myloader_mtd_parser_exit(void)
++{
++ deregister_mtd_parser(&myloader_mtd_parser);
++}
++
++module_init(myloader_mtd_parser_init);
++module_exit(myloader_mtd_parser_exit);
++
++MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
++MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
++MODULE_LICENSE("GPL v2");
diff --git a/target/linux/generic/pending-5.4/497-mtd-mtdconcat-add-dt-driver-for-concat-devices.patch b/target/linux/generic/pending-5.4/497-mtd-mtdconcat-add-dt-driver-for-concat-devices.patch
index 4d7598cc7c..1c42ed7bff 100644
--- a/target/linux/generic/pending-5.4/497-mtd-mtdconcat-add-dt-driver-for-concat-devices.patch
+++ b/target/linux/generic/pending-5.4/497-mtd-mtdconcat-add-dt-driver-for-concat-devices.patch
@@ -43,7 +43,7 @@ Signed-off-by: Bernhard Frauendienst <kernel at nospam.obeliks.de>
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
-@@ -244,4 +244,6 @@ source "drivers/mtd/ubi/Kconfig"
+@@ -228,4 +228,6 @@ source "drivers/mtd/ubi/Kconfig"
source "drivers/mtd/hyperbus/Kconfig"
--
2.20.1
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