$ cat /proc/cmdline
console=ttyLogFile0 root=/dev/mtdblock2 rootfstype=jffs2 mtdparts=21e0000.qspi:256k(uboot),3328K(kernel),12800K(rootfs) rootwait quiet rw

$ cat /proc/mtd
dev:    size   erasesize  name
mtd0: 00040000 00010000 "uboot"
mtd1: 00340000 00010000 "kernel"
mtd2: 00c80000 00010000 "rootfs"

$ df -T
Filesystem           Type       1K-blocks      Used Available Use% Mounted on
/dev/root            jffs2          12800     10940      1860  85% /
devtmpfs             devtmpfs       61632         0     61632   0% /dev
tmpfs                tmpfs          61732      6324     55408  10% /tmp
/dev/sda1            vfat        62498880     42304  62456576   0% /mnt/UPAN