the partition map from the children of the flash node,
as described in Documentation/devicetree/bindings/mtd/partition.txt.
-config MTD_BCM63XX_PARTS
- tristate "BCM63XX CFE partitioning support"
- depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
- select CRC32
- select MTD_PARSER_IMAGETAG
- help
- This provides partition parsing for BCM63xx devices with CFE
- bootloaders.
-
menu "Partition parsers"
source "drivers/mtd/parsers/Kconfig"
endmenu
obj-$(CONFIG_MTD_OF_PARTS) += ofpart.o
obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
-obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o
obj-y += parsers/
# 'Users' - code which presents functionality to userspace.
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * BCM63XX CFE image tag parser
- *
- * Copyright © 2006-2008 Florian Fainelli <florian@openwrt.org>
- * Mike Albon <malbon@openwrt.org>
- * Copyright © 2009-2010 Daniel Dickinson <openwrt@cshore.neomailbox.net>
- * Copyright © 2011-2013 Jonas Gorski <jonas.gorski@gmail.com>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/bcm963xx_nvram.h>
-#include <linux/bcm963xx_tag.h>
-#include <linux/crc32.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/sizes.h>
-#include <linux/slab.h>
-#include <linux/vmalloc.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/of.h>
-
-#define BCM963XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */
-
-#define BCM963XX_CFE_MAGIC_OFFSET 0x4e0
-#define BCM963XX_CFE_VERSION_OFFSET 0x570
-#define BCM963XX_NVRAM_OFFSET 0x580
-
-/* Ensure strings read from flash structs are null terminated */
-#define STR_NULL_TERMINATE(x) \
- do { char *_str = (x); _str[sizeof(x) - 1] = 0; } while (0)
-
-static int bcm63xx_detect_cfe(struct mtd_info *master)
-{
- char buf[9];
- int ret;
- size_t retlen;
-
- ret = mtd_read(master, BCM963XX_CFE_VERSION_OFFSET, 5, &retlen,
- (void *)buf);
- buf[retlen] = 0;
-
- if (ret)
- return ret;
-
- if (strncmp("cfe-v", buf, 5) == 0)
- return 0;
-
- /* very old CFE's do not have the cfe-v string, so check for magic */
- ret = mtd_read(master, BCM963XX_CFE_MAGIC_OFFSET, 8, &retlen,
- (void *)buf);
- buf[retlen] = 0;
-
- return strncmp("CFE1CFE1", buf, 8);
-}
-
-static int bcm63xx_read_nvram(struct mtd_info *master,
- struct bcm963xx_nvram *nvram)
-{
- u32 actual_crc, expected_crc;
- size_t retlen;
- int ret;
-
- /* extract nvram data */
- ret = mtd_read(master, BCM963XX_NVRAM_OFFSET, BCM963XX_NVRAM_V5_SIZE,
- &retlen, (void *)nvram);
- if (ret)
- return ret;
-
- ret = bcm963xx_nvram_checksum(nvram, &expected_crc, &actual_crc);
- if (ret)
- pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
- expected_crc, actual_crc);
-
- if (!nvram->psi_size)
- nvram->psi_size = BCM963XX_DEFAULT_PSI_SIZE;
-
- return 0;
-}
-
-static const char * const bcm63xx_cfe_part_types[] = {
- "bcm963xx-imagetag",
- NULL,
-};
-
-static int bcm63xx_parse_cfe_nor_partitions(struct mtd_info *master,
- const struct mtd_partition **pparts, struct bcm963xx_nvram *nvram)
-{
- struct mtd_partition *parts;
- int nrparts = 3, curpart = 0;
- unsigned int cfelen, nvramlen;
- unsigned int cfe_erasesize;
- int i;
-
- cfe_erasesize = max_t(uint32_t, master->erasesize,
- BCM963XX_CFE_BLOCK_SIZE);
-
- cfelen = cfe_erasesize;
- nvramlen = nvram->psi_size * SZ_1K;
- nvramlen = roundup(nvramlen, cfe_erasesize);
-
- parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
- if (!parts)
- return -ENOMEM;
-
- /* Start building partition list */
- parts[curpart].name = "CFE";
- parts[curpart].offset = 0;
- parts[curpart].size = cfelen;
- curpart++;
-
- parts[curpart].name = "nvram";
- parts[curpart].offset = master->size - nvramlen;
- parts[curpart].size = nvramlen;
- curpart++;
-
- /* Global partition "linux" to make easy firmware upgrade */
- parts[curpart].name = "linux";
- parts[curpart].offset = cfelen;
- parts[curpart].size = master->size - cfelen - nvramlen;
- parts[curpart].types = bcm63xx_cfe_part_types;
-
- for (i = 0; i < nrparts; i++)
- pr_info("Partition %d is %s offset %llx and length %llx\n", i,
- parts[i].name, parts[i].offset, parts[i].size);
-
- *pparts = parts;
-
- return nrparts;
-}
-
-static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
- const struct mtd_partition **pparts,
- struct mtd_part_parser_data *data)
-{
- struct bcm963xx_nvram *nvram = NULL;
- int ret;
-
- if (bcm63xx_detect_cfe(master))
- return -EINVAL;
-
- nvram = vzalloc(sizeof(*nvram));
- if (!nvram)
- return -ENOMEM;
-
- ret = bcm63xx_read_nvram(master, nvram);
- if (ret)
- goto out;
-
- if (!mtd_type_is_nand(master))
- ret = bcm63xx_parse_cfe_nor_partitions(master, pparts, nvram);
- else
- ret = -EINVAL;
-
-out:
- vfree(nvram);
- return ret;
-};
-
-static const struct of_device_id parse_bcm63xx_cfe_match_table[] = {
- { .compatible = "brcm,bcm963xx-cfe-nor-partitions" },
- {},
-};
-MODULE_DEVICE_TABLE(of, parse_bcm63xx_cfe_match_table);
-
-static struct mtd_part_parser bcm63xx_cfe_parser = {
- .parse_fn = bcm63xx_parse_cfe_partitions,
- .name = "bcm63xxpart",
- .of_match_table = parse_bcm63xx_cfe_match_table,
-};
-module_mtd_part_parser(bcm63xx_cfe_parser);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>");
-MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
-MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
-MODULE_AUTHOR("Jonas Gorski <jonas.gorski@gmail.com");
-MODULE_DESCRIPTION("MTD partitioning for BCM63XX CFE bootloaders");
This provides partitions parser for devices based on BCM47xx
boards.
+config MTD_BCM63XX_PARTS
+ tristate "BCM63XX CFE partitioning parser"
+ depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+ select CRC32
+ select MTD_PARSER_IMAGETAG
+ help
+ This provides partition parsing for BCM63xx devices with CFE
+ bootloaders.
+
config MTD_PARSER_IMAGETAG
tristate "Parser for BCM963XX Image Tag format partitions"
depends on BCM63XX || BMIPS_GENERIC || COMPILE_TEST
# SPDX-License-Identifier: GPL-2.0-only
obj-$(CONFIG_MTD_AR7_PARTS) += ar7part.o
obj-$(CONFIG_MTD_BCM47XX_PARTS) += bcm47xxpart.o
+obj-$(CONFIG_MTD_BCM63XX_PARTS) += bcm63xxpart.o
obj-$(CONFIG_MTD_PARSER_IMAGETAG) += parser_imagetag.o
obj-$(CONFIG_MTD_AFS_PARTS) += afs.o
obj-$(CONFIG_MTD_PARSER_TRX) += parser_trx.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * BCM63XX CFE image tag parser
+ *
+ * Copyright © 2006-2008 Florian Fainelli <florian@openwrt.org>
+ * Mike Albon <malbon@openwrt.org>
+ * Copyright © 2009-2010 Daniel Dickinson <openwrt@cshore.neomailbox.net>
+ * Copyright © 2011-2013 Jonas Gorski <jonas.gorski@gmail.com>
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/bcm963xx_nvram.h>
+#include <linux/bcm963xx_tag.h>
+#include <linux/crc32.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sizes.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/of.h>
+
+#define BCM963XX_CFE_BLOCK_SIZE SZ_64K /* always at least 64KiB */
+
+#define BCM963XX_CFE_MAGIC_OFFSET 0x4e0
+#define BCM963XX_CFE_VERSION_OFFSET 0x570
+#define BCM963XX_NVRAM_OFFSET 0x580
+
+/* Ensure strings read from flash structs are null terminated */
+#define STR_NULL_TERMINATE(x) \
+ do { char *_str = (x); _str[sizeof(x) - 1] = 0; } while (0)
+
+static int bcm63xx_detect_cfe(struct mtd_info *master)
+{
+ char buf[9];
+ int ret;
+ size_t retlen;
+
+ ret = mtd_read(master, BCM963XX_CFE_VERSION_OFFSET, 5, &retlen,
+ (void *)buf);
+ buf[retlen] = 0;
+
+ if (ret)
+ return ret;
+
+ if (strncmp("cfe-v", buf, 5) == 0)
+ return 0;
+
+ /* very old CFE's do not have the cfe-v string, so check for magic */
+ ret = mtd_read(master, BCM963XX_CFE_MAGIC_OFFSET, 8, &retlen,
+ (void *)buf);
+ buf[retlen] = 0;
+
+ return strncmp("CFE1CFE1", buf, 8);
+}
+
+static int bcm63xx_read_nvram(struct mtd_info *master,
+ struct bcm963xx_nvram *nvram)
+{
+ u32 actual_crc, expected_crc;
+ size_t retlen;
+ int ret;
+
+ /* extract nvram data */
+ ret = mtd_read(master, BCM963XX_NVRAM_OFFSET, BCM963XX_NVRAM_V5_SIZE,
+ &retlen, (void *)nvram);
+ if (ret)
+ return ret;
+
+ ret = bcm963xx_nvram_checksum(nvram, &expected_crc, &actual_crc);
+ if (ret)
+ pr_warn("nvram checksum failed, contents may be invalid (expected %08x, got %08x)\n",
+ expected_crc, actual_crc);
+
+ if (!nvram->psi_size)
+ nvram->psi_size = BCM963XX_DEFAULT_PSI_SIZE;
+
+ return 0;
+}
+
+static const char * const bcm63xx_cfe_part_types[] = {
+ "bcm963xx-imagetag",
+ NULL,
+};
+
+static int bcm63xx_parse_cfe_nor_partitions(struct mtd_info *master,
+ const struct mtd_partition **pparts, struct bcm963xx_nvram *nvram)
+{
+ struct mtd_partition *parts;
+ int nrparts = 3, curpart = 0;
+ unsigned int cfelen, nvramlen;
+ unsigned int cfe_erasesize;
+ int i;
+
+ cfe_erasesize = max_t(uint32_t, master->erasesize,
+ BCM963XX_CFE_BLOCK_SIZE);
+
+ cfelen = cfe_erasesize;
+ nvramlen = nvram->psi_size * SZ_1K;
+ nvramlen = roundup(nvramlen, cfe_erasesize);
+
+ parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
+ if (!parts)
+ return -ENOMEM;
+
+ /* Start building partition list */
+ parts[curpart].name = "CFE";
+ parts[curpart].offset = 0;
+ parts[curpart].size = cfelen;
+ curpart++;
+
+ parts[curpart].name = "nvram";
+ parts[curpart].offset = master->size - nvramlen;
+ parts[curpart].size = nvramlen;
+ curpart++;
+
+ /* Global partition "linux" to make easy firmware upgrade */
+ parts[curpart].name = "linux";
+ parts[curpart].offset = cfelen;
+ parts[curpart].size = master->size - cfelen - nvramlen;
+ parts[curpart].types = bcm63xx_cfe_part_types;
+
+ for (i = 0; i < nrparts; i++)
+ pr_info("Partition %d is %s offset %llx and length %llx\n", i,
+ parts[i].name, parts[i].offset, parts[i].size);
+
+ *pparts = parts;
+
+ return nrparts;
+}
+
+static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
+ const struct mtd_partition **pparts,
+ struct mtd_part_parser_data *data)
+{
+ struct bcm963xx_nvram *nvram = NULL;
+ int ret;
+
+ if (bcm63xx_detect_cfe(master))
+ return -EINVAL;
+
+ nvram = vzalloc(sizeof(*nvram));
+ if (!nvram)
+ return -ENOMEM;
+
+ ret = bcm63xx_read_nvram(master, nvram);
+ if (ret)
+ goto out;
+
+ if (!mtd_type_is_nand(master))
+ ret = bcm63xx_parse_cfe_nor_partitions(master, pparts, nvram);
+ else
+ ret = -EINVAL;
+
+out:
+ vfree(nvram);
+ return ret;
+};
+
+static const struct of_device_id parse_bcm63xx_cfe_match_table[] = {
+ { .compatible = "brcm,bcm963xx-cfe-nor-partitions" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, parse_bcm63xx_cfe_match_table);
+
+static struct mtd_part_parser bcm63xx_cfe_parser = {
+ .parse_fn = bcm63xx_parse_cfe_partitions,
+ .name = "bcm63xxpart",
+ .of_match_table = parse_bcm63xx_cfe_match_table,
+};
+module_mtd_part_parser(bcm63xx_cfe_parser);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>");
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
+MODULE_AUTHOR("Jonas Gorski <jonas.gorski@gmail.com");
+MODULE_DESCRIPTION("MTD partitioning for BCM63XX CFE bootloaders");
projects / linux-2.6-block.git / commitdiff