I saw this line in the file /a13/lichee/linux-3.0/drivers/block/sun5i_nand/src/include/nand_drv_cfg.h:
//define the switch that if need support wear-levelling
#define CFG_SUPPORT_WEAR_LEVELLING (0)
I guess the nand has 3000-10000 erase cycles max. So what do you think about this? Did anyone try to switch on wear leveling?
Note: There is a copy of this file also in the u-boot directory.