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uboot-envtools: add support for multiple config partitions

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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>
(cherry picked from commit a3e9fd7e5b365aa2f0b8cc1dc0a2d7cf3daa3e1a)
This commit is contained in:
Bjørn Mork 2021-04-06 11:43:03 +02:00 committed by Tianling Shen
parent 90c8c47188
commit d1dca8343b
No known key found for this signature in database
GPG Key ID: 6850B6345C862176
3 changed files with 32 additions and 15 deletions
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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"
}