diff options
Diffstat (limited to 'target/linux/generic/hack-5.10/410-block-fit-partition-parser.patch')
| -rw-r--r-- | target/linux/generic/hack-5.10/410-block-fit-partition-parser.patch | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/target/linux/generic/hack-5.10/410-block-fit-partition-parser.patch b/target/linux/generic/hack-5.10/410-block-fit-partition-parser.patch new file mode 100644 index 0000000000..2528f3afa1 --- /dev/null +++ b/target/linux/generic/hack-5.10/410-block-fit-partition-parser.patch @@ -0,0 +1,219 @@ +--- a/block/blk.h ++++ b/block/blk.h +@@ -357,6 +357,7 @@ char *disk_name(struct gendisk *hd, int + #define ADDPART_FLAG_NONE 0 + #define ADDPART_FLAG_RAID 1 + #define ADDPART_FLAG_WHOLEDISK 2 ++#define ADDPART_FLAG_ROOTDEV 4 + void delete_partition(struct hd_struct *part); + int bdev_add_partition(struct block_device *bdev, int partno, + sector_t start, sector_t length); +--- a/block/partitions/Kconfig ++++ b/block/partitions/Kconfig +@@ -101,6 +101,13 @@ config ATARI_PARTITION + Say Y here if you would like to use hard disks under Linux which + were partitioned under the Atari OS. + ++config FIT_PARTITION ++ bool "Flattened-Image-Tree (FIT) partition support" if PARTITION_ADVANCED ++ default n ++ help ++ Say Y here if your system needs to mount the filesystem part of ++ a Flattened-Image-Tree (FIT) image commonly used with Das U-Boot. ++ + config IBM_PARTITION + bool "IBM disk label and partition support" + depends on PARTITION_ADVANCED && S390 +--- a/block/partitions/Makefile ++++ b/block/partitions/Makefile +@@ -8,6 +8,7 @@ obj-$(CONFIG_ACORN_PARTITION) += acorn.o + obj-$(CONFIG_AMIGA_PARTITION) += amiga.o + obj-$(CONFIG_ATARI_PARTITION) += atari.o + obj-$(CONFIG_AIX_PARTITION) += aix.o ++obj-$(CONFIG_FIT_PARTITION) += fit.o + obj-$(CONFIG_CMDLINE_PARTITION) += cmdline.o + obj-$(CONFIG_MAC_PARTITION) += mac.o + obj-$(CONFIG_LDM_PARTITION) += ldm.o +--- a/block/partitions/check.h ++++ b/block/partitions/check.h +@@ -58,6 +58,7 @@ int amiga_partition(struct parsed_partit + int atari_partition(struct parsed_partitions *state); + int cmdline_partition(struct parsed_partitions *state); + int efi_partition(struct parsed_partitions *state); ++int fit_partition(struct parsed_partitions *state); + int ibm_partition(struct parsed_partitions *); + int karma_partition(struct parsed_partitions *state); + int ldm_partition(struct parsed_partitions *state); +@@ -68,3 +69,5 @@ int sgi_partition(struct parsed_partitio + int sun_partition(struct parsed_partitions *state); + int sysv68_partition(struct parsed_partitions *state); + int ultrix_partition(struct parsed_partitions *state); ++ ++int parse_fit_partitions(struct parsed_partitions *state, u64 start_sector, u64 nr_sectors, int *slot, int add_remain); +--- a/block/partitions/core.c ++++ b/block/partitions/core.c +@@ -10,6 +10,10 @@ + #include <linux/vmalloc.h> + #include <linux/blktrace_api.h> + #include <linux/raid/detect.h> ++#ifdef CONFIG_FIT_PARTITION ++#include <linux/root_dev.h> ++#endif ++ + #include "check.h" + + static int (*check_part[])(struct parsed_partitions *) = { +@@ -46,6 +50,9 @@ static int (*check_part[])(struct parsed + #ifdef CONFIG_EFI_PARTITION + efi_partition, /* this must come before msdos */ + #endif ++#ifdef CONFIG_FIT_PARTITION ++ fit_partition, ++#endif + #ifdef CONFIG_SGI_PARTITION + sgi_partition, + #endif +@@ -215,6 +222,18 @@ static ssize_t part_discard_alignment_sh + p->start_sect)); + } + ++static ssize_t part_name_show(struct device *dev, ++ struct device_attribute *attr, char *buf) ++{ ++ struct hd_struct *p = dev_to_part(dev); ++ ++ if (p->info && p->info->volname) ++ return sprintf(buf, "%s\n", p->info->volname); ++ ++ buf[0] = '\0'; ++ return 0; ++} ++ + static DEVICE_ATTR(partition, 0444, part_partition_show, NULL); + static DEVICE_ATTR(start, 0444, part_start_show, NULL); + static DEVICE_ATTR(size, 0444, part_size_show, NULL); +@@ -223,6 +242,7 @@ static DEVICE_ATTR(alignment_offset, 044 + static DEVICE_ATTR(discard_alignment, 0444, part_discard_alignment_show, NULL); + static DEVICE_ATTR(stat, 0444, part_stat_show, NULL); + static DEVICE_ATTR(inflight, 0444, part_inflight_show, NULL); ++static DEVICE_ATTR(name, 0444, part_name_show, NULL); + #ifdef CONFIG_FAIL_MAKE_REQUEST + static struct device_attribute dev_attr_fail = + __ATTR(make-it-fail, 0644, part_fail_show, part_fail_store); +@@ -237,6 +257,7 @@ static struct attribute *part_attrs[] = + &dev_attr_discard_alignment.attr, + &dev_attr_stat.attr, + &dev_attr_inflight.attr, ++ &dev_attr_name.attr, + #ifdef CONFIG_FAIL_MAKE_REQUEST + &dev_attr_fail.attr, + #endif +@@ -694,6 +715,11 @@ static bool blk_add_partition(struct gen + (state->parts[p].flags & ADDPART_FLAG_RAID)) + md_autodetect_dev(part_to_dev(part)->devt); + ++#ifdef CONFIG_FIT_PARTITION ++ if ((state->parts[p].flags & ADDPART_FLAG_ROOTDEV) && ROOT_DEV == 0) ++ ROOT_DEV = part_to_dev(part)->devt; ++#endif ++ + return true; + } + +--- a/drivers/mtd/ubi/block.c ++++ b/drivers/mtd/ubi/block.c +@@ -396,7 +396,11 @@ int ubiblock_create(struct ubi_volume_in + dev->leb_size = vi->usable_leb_size; + + /* Initialize the gendisk of this ubiblock device */ ++#ifdef CONFIG_FIT_PARTITION ++ gd = alloc_disk(0); ++#else + gd = alloc_disk(1); ++#endif + if (!gd) { + pr_err("UBI: block: alloc_disk failed\n"); + ret = -ENODEV; +@@ -413,6 +417,9 @@ int ubiblock_create(struct ubi_volume_in + goto out_put_disk; + } + gd->private_data = dev; ++#ifdef CONFIG_FIT_PARTITION ++ gd->flags |= GENHD_FL_EXT_DEVT; ++#endif + sprintf(gd->disk_name, "ubiblock%d_%d", dev->ubi_num, dev->vol_id); + set_capacity(gd, disk_capacity); + dev->gd = gd; +--- a/block/partitions/efi.c ++++ b/block/partitions/efi.c +@@ -706,6 +706,9 @@ int efi_partition(struct parsed_partitio + gpt_entry *ptes = NULL; + u32 i; + unsigned ssz = bdev_logical_block_size(state->bdev) / 512; ++#ifdef CONFIG_FIT_PARTITION ++ u32 extra_slot = 64; ++#endif + + if (!find_valid_gpt(state, &gpt, &ptes) || !gpt || !ptes) { + kfree(gpt); +@@ -739,6 +742,11 @@ int efi_partition(struct parsed_partitio + ARRAY_SIZE(ptes[i].partition_name)); + utf16_le_to_7bit(ptes[i].partition_name, label_max, info->volname); + state->parts[i + 1].has_info = true; ++#ifdef CONFIG_FIT_PARTITION ++ /* If this is a U-Boot FIT volume it may have subpartitions */ ++ if (!efi_guidcmp(ptes[i].partition_type_guid, PARTITION_LINUX_FIT_GUID)) ++ (void) parse_fit_partitions(state, start * ssz, size * ssz, &extra_slot, 1); ++#endif + } + kfree(ptes); + kfree(gpt); +--- a/block/partitions/efi.h ++++ b/block/partitions/efi.h +@@ -52,6 +52,9 @@ + #define PARTITION_LINUX_LVM_GUID \ + EFI_GUID( 0xe6d6d379, 0xf507, 0x44c2, \ + 0xa2, 0x3c, 0x23, 0x8f, 0x2a, 0x3d, 0xf9, 0x28) ++#define PARTITION_LINUX_FIT_GUID \ ++ EFI_GUID( 0xcae9be83, 0xb15f, 0x49cc, \ ++ 0x86, 0x3f, 0x08, 0x1b, 0x74, 0x4a, 0x2d, 0x93) + + typedef struct _gpt_header { + __le64 signature; +--- a/drivers/mtd/mtdblock.c ++++ b/drivers/mtd/mtdblock.c +@@ -334,7 +334,11 @@ static void mtdblock_remove_dev(struct m + static struct mtd_blktrans_ops mtdblock_tr = { + .name = "mtdblock", + .major = MTD_BLOCK_MAJOR, ++#ifdef CONFIG_FIT_PARTITION ++ .part_bits = 1, ++#else + .part_bits = 0, ++#endif + .blksize = 512, + .open = mtdblock_open, + .flush = mtdblock_flush, +--- a/drivers/mtd/mtd_blkdevs.c ++++ b/drivers/mtd/mtd_blkdevs.c +@@ -407,18 +407,8 @@ int add_mtd_blktrans_dev(struct mtd_blkt + gd->first_minor = (new->devnum) << tr->part_bits; + gd->fops = &mtd_block_ops; + +- if (tr->part_bits) +- if (new->devnum < 26) +- snprintf(gd->disk_name, sizeof(gd->disk_name), +- "%s%c", tr->name, 'a' + new->devnum); +- else +- snprintf(gd->disk_name, sizeof(gd->disk_name), +- "%s%c%c", tr->name, +- 'a' - 1 + new->devnum / 26, +- 'a' + new->devnum % 26); +- else +- snprintf(gd->disk_name, sizeof(gd->disk_name), +- "%s%d", tr->name, new->devnum); ++ snprintf(gd->disk_name, sizeof(gd->disk_name), ++ "%s%d", tr->name, new->devnum); + + set_capacity(gd, ((u64)new->size * tr->blksize) >> 9); + |