1*4882a593Smuzhiyun# Configuration file for fw_(printenv/setenv) utility. 2*4882a593Smuzhiyun# Up to two entries are valid, in this case the redundant 3*4882a593Smuzhiyun# environment sector is assumed present. 4*4882a593Smuzhiyun# Notice, that the "Number of sectors" is not required on NOR and SPI-dataflash. 5*4882a593Smuzhiyun# Futhermore, if the Flash sector size is omitted, this value is assumed to 6*4882a593Smuzhiyun# be the same as the Environment size, which is valid for NOR and SPI-dataflash 7*4882a593Smuzhiyun# Device offset must be prefixed with 0x to be parsed as a hexadecimal value. 8*4882a593Smuzhiyun 9*4882a593Smuzhiyun# NOR example 10*4882a593Smuzhiyun# MTD device name Device offset Env. size Flash sector size Number of sectors 11*4882a593Smuzhiyun/dev/mtd1 0x0000 0x4000 0x4000 12*4882a593Smuzhiyun/dev/mtd2 0x0000 0x4000 0x4000 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun# MTD SPI-dataflash example 15*4882a593Smuzhiyun# MTD device name Device offset Env. size Flash sector size Number of sectors 16*4882a593Smuzhiyun#/dev/mtd5 0x4200 0x4200 17*4882a593Smuzhiyun#/dev/mtd6 0x4200 0x4200 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun# NAND example 20*4882a593Smuzhiyun#/dev/mtd0 0x4000 0x4000 0x20000 2 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun# On a block device a negative offset is treated as a backwards offset from the 23*4882a593Smuzhiyun# end of the device/partition, rather than a forwards offset from the start. 24*4882a593Smuzhiyun 25*4882a593Smuzhiyun# Block device example 26*4882a593Smuzhiyun#/dev/mmcblk0 0xc0000 0x20000 27*4882a593Smuzhiyun#/dev/mmcblk0 -0x20000 0x20000 28*4882a593Smuzhiyun 29*4882a593Smuzhiyun# VFAT example 30*4882a593Smuzhiyun#/boot/uboot.env 0x0000 0x4000 31