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diff -Nur linux-2.6.31.4.orig/drivers/mtd/Kconfig linux-2.6.31.4/drivers/mtd/Kconfig
--- linux-2.6.31.4.orig/drivers/mtd/Kconfig 2009-10-12 22:15:40.000000000 +0200
+++ linux-2.6.31.4/drivers/mtd/Kconfig 2009-10-21 11:45:10.557679089 +0200
@@ -53,6 +53,11 @@
should normally be compiled as kernel modules. The modules perform
various checks and verifications when loaded.
+config MTD_ROOTFS_ROOT_DEV
+ bool "Automatically set 'rootfs' partition to be root filesystem"
+ depends on MTD_PARTITIONS
+ default y
+
config MTD_REDBOOT_PARTS
tristate "RedBoot partition table parsing"
depends on MTD_PARTITIONS
diff -Nur linux-2.6.31.4.orig/drivers/mtd/mtdpart.c linux-2.6.31.4/drivers/mtd/mtdpart.c
--- linux-2.6.31.4.orig/drivers/mtd/mtdpart.c 2009-10-12 22:15:40.000000000 +0200
+++ linux-2.6.31.4/drivers/mtd/mtdpart.c 2009-10-21 11:46:39.593679219 +0200
@@ -18,6 +18,7 @@
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/compatmac.h>
+#include <linux/root_dev.h>
/* Our partition linked list */
static LIST_HEAD(mtd_partitions);
@@ -35,7 +36,7 @@
* the pointer to that structure with this macro.
*/
#define PART(x) ((struct mtd_part *)(x))
-
+#define IS_PART(mtd) (mtd->read == part_read)
/*
* MTD methods which simply translate the effective address and pass through
@@ -517,14 +518,23 @@
{
struct mtd_part *slave;
uint64_t cur_offset = 0;
- int i;
+ int i, j;
printk(KERN_NOTICE "Creating %d MTD partitions on \"%s\":\n", nbparts, master->name);
- for (i = 0; i < nbparts; i++) {
- slave = add_one_partition(master, parts + i, i, cur_offset);
+ for (i = 0, j = 0; i < nbparts; i++) {
+ slave = add_one_partition(master, parts + i, j++, cur_offset);
if (!slave)
return -ENOMEM;
+ if (!strcmp(parts[i].name, "rootfs")) {
+#ifdef CONFIG_MTD_ROOTFS_ROOT_DEV
+ if (ROOT_DEV == 0) {
+ printk(KERN_NOTICE "mtd: partition \"rootfs\" "
+ "set to be root filesystem\n");
+ ROOT_DEV = MKDEV(MTD_BLOCK_MAJOR, slave->mtd.index);
+ }
+#endif
+ }
cur_offset = slave->offset + slave->mtd.size;
}
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