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uboot-envtools: add support for multiple config partitions 

Most (all?) of the realtek devices have two u-boot config partitions
with a different set of variables in each. The U-Boot shell provides
two sets of apps to manipulate these:

 printenv- print environment variables
 printsys- printsys - print system information variables
 saveenv - save environment variables to persistent storage
 savesys - savesys - save system information variables to persistent storage
 setenv  - set environment variables
 setsys  - setsys  - set system information variables

Add support for multiple ubootenv configuration types, allowing
more than one configuration file.

Section names are not suitable for naming the different
configurations since each file can be the result of multiple sections
in case of backup partitions.

Signed-off-by: Bjørn Mork <bjorn@mork.no>
This commit is contained in:
Bjørn Mork 2021-04-06 11:43:03 +02:00 committed by Petr Štetiar
parent f2c8c62d98
commit a3e9fd7e5b
3 changed files with 32 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
package/boot/uboot-envtools/Makefile
View File

@ -61,6 +61,7 @@ MAKE_FLAGS += \
define Package/uboot-envtools/conffiles
/etc/config/ubootenv
/etc/fw_env.config
/etc/fw_sys.config
endef
define Package/uboot-envtools/install

8
package/boot/uboot-envtools/files/realtek
View File

@ -18,15 +18,21 @@ zyxel,gs1900-10hp)
idx="$(find_mtd_index u-boot-env)"
[ -n "$idx" ] && \
ubootenv_add_uci_config "/dev/mtd$idx" "0x0" "0x400" "0x10000"
idx2="$(find_mtd_index u-boot-env2)"
[ -n "$idx2" ] && \
ubootenv_add_uci_sys_config "/dev/mtd$idx2" "0x0" "0x1000" "0x10000"
;;
*)
idx="$(find_mtd_index u-boot-env)"
[ -n "$idx" ] && \
ubootenv_add_uci_config "/dev/mtd$idx" "0x0" "0x10000" "0x10000"
idx2="$(find_mtd_index u-boot-env2)"
[ -n "$idx2" ] && \
ubootenv_add_uci_sys_config "/dev/mtd$idx2" "0x0" "0x1000" "0x10000"
;;
esac
config_load ubootenv
config_foreach ubootenv_add_app_config ubootenv
config_foreach ubootenv_add_app_config
exit 0

38
package/boot/uboot-envtools/files/uboot-envtools.sh
View File

@ -3,34 +3,44 @@
# Copyright (C) 2011-2012 OpenWrt.org
#
ubootenv_add_uci_config() {
local dev=$1
local offset=$2
local envsize=$3
local secsize=$4
local numsec=$5
_ubootenv_add_uci_config() {
local cfgtype=$1
local dev=$2
local offset=$3
local envsize=$4
local secsize=$5
local numsec=$6
uci batch <<EOF
add ubootenv ubootenv
set ubootenv.@ubootenv[-1].dev='$dev'
set ubootenv.@ubootenv[-1].offset='$offset'
set ubootenv.@ubootenv[-1].envsize='$envsize'
set ubootenv.@ubootenv[-1].secsize='$secsize'
set ubootenv.@ubootenv[-1].numsec='$numsec'
add ubootenv $cfgtype
set ubootenv.@$cfgtype[-1].dev='$dev'
set ubootenv.@$cfgtype[-1].offset='$offset'
set ubootenv.@$cfgtype[-1].envsize='$envsize'
set ubootenv.@$cfgtype[-1].secsize='$secsize'
set ubootenv.@$cfgtype[-1].numsec='$numsec'
EOF
uci commit ubootenv
}
ubootenv_add_uci_config() {
_ubootenv_add_uci_config "ubootenv" "$@"
}
ubootenv_add_uci_sys_config() {
_ubootenv_add_uci_config "ubootsys" "$@"
}
ubootenv_add_app_config() {
local cfgtype
local dev
local offset
local envsize
local secsize
local numsec
config_get cfgtype "$1" TYPE
config_get dev "$1" dev
config_get offset "$1" offset
config_get envsize "$1" envsize
config_get secsize "$1" secsize
config_get numsec "$1" numsec
grep -q "^[[:space:]]*${dev}[[:space:]]*${offset}" /etc/fw_env.config || echo "$dev $offset $envsize $secsize $numsec" >>/etc/fw_env.config
grep -q "^[[:space:]]*${dev}[[:space:]]*${offset}" "/etc/fw_${cfgtype#uboot}.config" || echo "$dev $offset $envsize $secsize $numsec" >>"/etc/fw_${cfgtype#uboot}.config"
}