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-rw-r--r--target/Config.in8
-rw-r--r--target/linux/patches/2.6.35.7/startup.patch2
-rw-r--r--target/linux/patches/2.6.36/startup.patch2
-rw-r--r--target/linux/patches/2.6.36/uuid.patch261
4 files changed, 263 insertions, 10 deletions
diff --git a/target/Config.in b/target/Config.in
index 95b00474d..b243ddc2a 100644
--- a/target/Config.in
+++ b/target/Config.in
@@ -793,14 +793,6 @@ config ADK_TARGET_ROOTFS_ENCRYPTED
endchoice
-config ADK_TARGET_ROOTFS_USB_DEVICE
- prompt "Target device node for USB stick"
- string
- depends on ADK_TARGET_ROOTFS_USB
- default "/dev/sdb1"
- help
- Target device node for the USB stick.
-
choice
prompt "Compression method for initramfs and kernel"
depends on ADK_TARGET_ROOTFS_INITRAMFS || ADK_TARGET_ROOTFS_INITRAMFS_PIGGYBACK
diff --git a/target/linux/patches/2.6.35.7/startup.patch b/target/linux/patches/2.6.35.7/startup.patch
index cbfd4b5bf..68e8987b0 100644
--- a/target/linux/patches/2.6.35.7/startup.patch
+++ b/target/linux/patches/2.6.35.7/startup.patch
@@ -13,7 +13,7 @@ diff -Nur linux-2.6.34.orig/init/main.c linux-2.6.34/init/main.c
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
-+ printk(KERN_WARNING "Starting Linux (build with OpenADK).\n");
++ printk(KERN_WARNING "Starting Linux (built with OpenADK).\n");
+
(void) sys_dup(0);
(void) sys_dup(0);
diff --git a/target/linux/patches/2.6.36/startup.patch b/target/linux/patches/2.6.36/startup.patch
index cbfd4b5bf..68e8987b0 100644
--- a/target/linux/patches/2.6.36/startup.patch
+++ b/target/linux/patches/2.6.36/startup.patch
@@ -13,7 +13,7 @@ diff -Nur linux-2.6.34.orig/init/main.c linux-2.6.34/init/main.c
if (sys_open((const char __user *) "/dev/console", O_RDWR, 0) < 0)
printk(KERN_WARNING "Warning: unable to open an initial console.\n");
-+ printk(KERN_WARNING "Starting Linux (build with OpenADK).\n");
++ printk(KERN_WARNING "Starting Linux (built with OpenADK).\n");
+
(void) sys_dup(0);
(void) sys_dup(0);
diff --git a/target/linux/patches/2.6.36/uuid.patch b/target/linux/patches/2.6.36/uuid.patch
new file mode 100644
index 000000000..cf2869ed2
--- /dev/null
+++ b/target/linux/patches/2.6.36/uuid.patch
@@ -0,0 +1,261 @@
+# DP: Add support for specifying the root device using UUIDs on the
+# DP: kernel command line like this without the need for an initrd:
+# DP: linux ... root=UUID=ce40d6b2-18eb-4a75-aefe-7ddb0995ce63
+# DP: Note: debugging code is kept in, commented out “//” style.
+# DP:
+# DP: Written © 2010 by Thorsten Glaser <tg@debian.org>
+# DP: Idea from 1999 by David Balazic <david.balazic@uni-mb.si>
+
+--- linux-2.6.36/block/genhd.c~ Wed Oct 20 22:30:22 2010
++++ linux-2.6.36/block/genhd.c Sat Nov 20 23:14:03 2010
+@@ -35,7 +35,7 @@ struct kobject *block_depr;
+ static DEFINE_MUTEX(ext_devt_mutex);
+ static DEFINE_IDR(ext_devt_idr);
+
+-static struct device_type disk_type;
++struct device_type disk_type;
+
+ /**
+ * disk_get_part - get partition
+@@ -1019,7 +1019,7 @@ static char *block_devnode(struct device *dev, mode_t
+ return NULL;
+ }
+
+-static struct device_type disk_type = {
++struct device_type disk_type = {
+ .name = "disk",
+ .groups = disk_attr_groups,
+ .release = disk_release,
+--- linux-2.6.36/init/do_mounts.c~ Wed Oct 20 20:29:58 2010
++++ linux-2.6.36/init/do_mounts.c Sun Nov 21 18:37:36 2010
+@@ -32,6 +32,132 @@ static int __initdata root_wait;
+
+ dev_t ROOT_DEV;
+
++#ifdef CONFIG_EXT2_FS
++/* support for root=UUID=ce40d6b2-18eb-4a75-aefe-7ddb0995ce63 bootargs */
++
++#include <linux/ext2_fs.h>
++
++__u8 root_dev_uuid[16];
++int root_dev_type; /* 0 = normal (/dev/hda1, 0301); 1 = UUID; 3 = bad */
++
++/* imported from block/genhd.c after removing its static qualifier */
++extern struct device_type disk_type;
++
++/* helper function */
++static __u8 __init fromhex(char c)
++{
++ if (c >= '0' && c <= '9')
++ return (c - '0');
++ c &= ~32;
++ if (c >= 'A' && c <= 'F')
++ return (c - 'A' + 10);
++ return (0xFF);
++}
++
++static void __init parse_uuid(const char *s)
++{
++ int i;
++ __u8 j, k;
++
++ if (strlen(s) != 36 || s[8] != '-' || s[13] != '-' ||
++ s[18] != '-' || s[23] != '-')
++ goto bad_uuid;
++ for (i = 0; i < 16; i++) {
++ if (*s == '-')
++ ++s;
++ j = fromhex(*s++);
++ k = fromhex(*s++);
++ if (j == 0xFF || k == 0xFF)
++ goto bad_uuid;
++ root_dev_uuid[i] = (j << 4) | k;
++ }
++ return;
++ bad_uuid:
++ /* we cannot panic here, defer */
++ root_dev_type = 3;
++}
++
++/* from drivers/md/md.c */
++static void __init initcode_bi_complete(struct bio *bio, int error)
++{
++ complete((struct completion*)bio->bi_private);
++}
++
++static int __init initcode_sync_page_read(struct block_device *bdev,
++ sector_t sector, int size, struct page *page)
++{
++ struct bio *bio = bio_alloc(GFP_NOIO, 1);
++ struct completion event;
++ int ret, rw = READ;
++
++ rw |= REQ_SYNC | REQ_UNPLUG;
++
++ bio->bi_bdev = bdev;
++ bio->bi_sector = sector;
++ bio_add_page(bio, page, size, 0);
++ init_completion(&event);
++ bio->bi_private = &event;
++ bio->bi_end_io = initcode_bi_complete;
++ submit_bio(rw, bio);
++ wait_for_completion(&event);
++
++ ret = test_bit(BIO_UPTODATE, &bio->bi_flags);
++ bio_put(bio);
++ /* 0 = failure */
++ return ret;
++}
++
++/* most of this taken from fs/ext2/super.c */
++static int __init check_dev(struct gendisk *thedisk, dev_t devt,
++ int blocksize, struct page *page)
++{
++ struct ext2_super_block * es;
++ struct block_device *bdev;
++ unsigned long sb_block = 1;
++ unsigned long logic_sb_block;
++ unsigned long offset = 0;
++ int rv = /* not found */ 0;
++ char bff[22];
++
++ bdev = bdget(devt);
++ if (blkdev_get(bdev, FMODE_READ)) {
++ printk(KERN_ERR "VFS: opening block device %s failed!\n",
++ format_dev_t(bff, devt));
++ return (0);
++ }
++
++ if (blocksize != BLOCK_SIZE) {
++ logic_sb_block = (sb_block*BLOCK_SIZE) / blocksize;
++ offset = (sb_block*BLOCK_SIZE) % blocksize;
++ } else {
++ logic_sb_block = sb_block;
++ }
++
++// printk(KERN_ERR "D: attempting to read %d @%lu from "
++// "bdev %p devt %08X %s\n", blocksize, logic_sb_block,
++// bdev, devt, format_dev_t(bff, devt));
++ if (!initcode_sync_page_read(bdev, logic_sb_block, blocksize, page)) {
++// printk(KERN_ERR "D: failed!\n");
++ goto out;
++ }
++ es = (struct ext2_super_block *)(((char *)page_address(page)) + offset);
++ if (le16_to_cpu(es->s_magic) == EXT2_SUPER_MAGIC) {
++// printk(KERN_ERR "D: has uuid "
++// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n",
++// es->s_uuid[0], es->s_uuid[1], es->s_uuid[2], es->s_uuid[3],
++// es->s_uuid[4], es->s_uuid[5], es->s_uuid[6], es->s_uuid[7],
++// es->s_uuid[8], es->s_uuid[9], es->s_uuid[10], es->s_uuid[11],
++// es->s_uuid[12], es->s_uuid[13], es->s_uuid[14], es->s_uuid[15]);
++ if (!memcmp(es->s_uuid, root_dev_uuid, 16))
++ rv = /* found */ 1;
++ }
++// else printk(KERN_ERR "D: bad ext2fs magic\n");
++ out:
++ blkdev_put(bdev, FMODE_READ);
++ return (rv);
++}
++#endif /* CONFIG_EXT2_FS for UUID support */
++
+ static int __init load_ramdisk(char *str)
+ {
+ rd_doload = simple_strtol(str,NULL,0) & 3;
+@@ -148,6 +274,13 @@ done:
+ static int __init root_dev_setup(char *line)
+ {
+ strlcpy(saved_root_name, line, sizeof(saved_root_name));
++#ifdef CONFIG_EXT2_FS
++ root_dev_type = 0;
++ if (!strncmp(line, "UUID=", 5)) {
++ root_dev_type = 1;
++ parse_uuid(line + 5);
++ }
++#endif /* CONFIG_EXT2_FS for UUID support */
+ return 1;
+ }
+
+@@ -333,6 +466,83 @@ void __init change_floppy(char *fmt, ...
+
+ void __init mount_root(void)
+ {
++#ifdef CONFIG_EXT2_FS
++ /* UUID support */
++// printk_all_partitions();
++ if (root_dev_type == 1) {
++ int blocksize;
++
++ /* from block/genhd.c printk_all_partitions */
++ struct class_dev_iter iter;
++ struct device *dev;
++
++ /* from drivers/md/md.c */
++ struct page *sb_page;
++
++ if (!(sb_page = alloc_page(GFP_KERNEL))) {
++ printk(KERN_ERR "VFS: no memory for bio page\n");
++ goto nomemforbio;
++ }
++
++// printk(KERN_ERR "D: root is: "
++// "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X\n",
++// root_dev_uuid[0], root_dev_uuid[1], root_dev_uuid[2], root_dev_uuid[3],
++// root_dev_uuid[4], root_dev_uuid[5], root_dev_uuid[6], root_dev_uuid[7],
++// root_dev_uuid[8], root_dev_uuid[9], root_dev_uuid[10], root_dev_uuid[11],
++// root_dev_uuid[12], root_dev_uuid[13], root_dev_uuid[14], root_dev_uuid[15]);
++ /* from block/genhd.c printk_all_partitions */
++// printk(KERN_ERR "D: begin iter\n");
++ class_dev_iter_init(&iter, &block_class, NULL, &disk_type);
++ while (root_dev_type && (dev = class_dev_iter_next(&iter))) {
++// char bff[22];
++ struct gendisk *disk = dev_to_disk(dev);
++ struct disk_part_iter piter;
++ struct hd_struct *part;
++ if (get_capacity(disk) == 0 ||
++ (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO)) {
++// printk(KERN_ERR "D: ignoring\n");
++ continue;
++ }
++ blocksize = queue_logical_block_size(disk->queue);
++// printk(KERN_ERR "D: gendisk, blocksize %d "
++// "name '%s' devt %08X %s #part %d\n", blocksize,
++// disk->disk_name, dev->devt,
++// format_dev_t(bff, dev->devt),
++// disk_max_parts(disk));
++ disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
++ while (root_dev_type && (part = disk_part_iter_next(&piter))) {
++ /* avoid empty or too small partitions */
++// printk(KERN_ERR "D: part #%d start %llu "
++// "nr %llu\n", part->partno,
++// (__u64)part->start_sect,
++// (__u64)part->nr_sects);
++ if (part->nr_sects < 8)
++ continue;
++ if (check_dev(disk, MKDEV(MAJOR(dev->devt),
++ MINOR(dev->devt) + part->partno),
++ blocksize, sb_page)) {
++ ROOT_DEV = part_devt(part);
++// printk(KERN_ERR "D: got match!\n");
++ // comment out below for debugging
++ root_dev_type = 0;
++ }
++ }
++ disk_part_iter_exit(&piter);
++ }
++// printk(KERN_ERR "D: end iter\n");
++ class_dev_iter_exit(&iter);
++ put_page(sb_page);
++ }
++ nomemforbio:
++ if (root_dev_type == 1)
++ printk(KERN_ERR "VFS: Unable to find root by UUID %s.\n",
++ saved_root_name + 5);
++ else if (root_dev_type == 3)
++ /* execute deferred panic from parse_uuid */
++ panic("Badly formatted UUID %s was supplied as kernel "
++ "parameter root", saved_root_name + 5);
++#endif /* CONFIG_EXT2_FS for UUID support */
++
+ #ifdef CONFIG_ROOT_NFS
+ if (MAJOR(ROOT_DEV) == UNNAMED_MAJOR) {
+ if (mount_nfs_root())
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-02 21:13:44 +0000