X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=tools%2Fenv%2Ffw_env.config;h=053895a2c07b23891e098c2370066204f04b8ea1;hb=c4446b1d6c96de406972690083e2884bf69bce5c;hp=8e21d5a5ab3e35b7d81ea9f9f714acbc15716cfc;hpb=909e9bf3ae6195ac6d52f9e453fba2be8e7e947f;p=u-boot

diff --git a/tools/env/fw_env.config b/tools/env/fw_env.config
index 8e21d5a5ab..053895a2c0 100644
--- a/tools/env/fw_env.config
+++ b/tools/env/fw_env.config
@@ -1,9 +1,10 @@
-# Configuration file for fw_(printenv/saveenv) utility.
+# Configuration file for fw_(printenv/setenv) utility.
 # Up to two entries are valid, in this case the redundant
 # environment sector is assumed present.
-# Notice, that the "Number of sectors" is ignored on NOR and SPI-dataflash.
-# Futhermore, if the Flash sector size is ommitted, this value is assumed to
+# Notice, that the "Number of sectors" is not required on NOR and SPI-dataflash.
+# Futhermore, if the Flash sector size is omitted, this value is assumed to
 # be the same as the Environment size, which is valid for NOR and SPI-dataflash
+# Device offset must be prefixed with 0x to be parsed as a hexadecimal value.
 
 # NOR example
 # MTD device name	Device offset	Env. size	Flash sector size	Number of sectors
@@ -17,3 +18,21 @@
 
 # NAND example
 #/dev/mtd0		0x4000		0x4000		0x20000			2
+
+# On a block device a negative offset is treated as a backwards offset from the
+# end of the device/partition, rather than a forwards offset from the start.
+
+# Block device example
+#/dev/mmcblk0		0xc0000		0x20000
+#/dev/mmcblk0		-0x20000	0x20000
+
+# VFAT example
+#/boot/uboot.env	0x0000          0x4000
+
+# UBI volume
+#/dev/ubi0_0		0x0		0x1f000		0x1f000
+#/dev/ubi0_1		0x0		0x1f000		0x1f000
+
+# UBI volume by name
+#/dev/ubi0:env		0x0		0x1f000		0x1f000
+#/dev/ubi0:env-redund	0x0		0x1f000		0x1f000