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authorFelix Baumann <felix.bau@gmx.de>2022-12-26 21:40:43 +0100
committerFelix Baumann <felix.bau@gmx.de>2023-04-02 12:19:18 +0200
commit3014c694da6c83bba883200ae65b0350a37d7976 (patch)
tree6bda1d5a15f9ff5690d3e86d2084a21abb27f3d6 /target
parentff22a20922117efd9a0ceb44705242a2d95f577f (diff)
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ramips: add support for read/write uboot env to Asus RX-AX53U
Add support for read/writing uboot env by renaming the second partition to its stock label "nvram" and remove the deemed unnecessary "read-only". Split the first partition "u-boot" in two, in order to allow `fw_setenv` safe write-access to the uboot environment variables. This implements hauke's request from [1]. Based on the patch provided by Shiji Yang. [1] https://github.com/openwrt/openwrt/pull/10400#discussion_r945153224 Co-Authored-By: Shiji Yang <yangshiji66@qq.com> Signed-off-by: Felix Baumann <felix.bau@gmx.de> [ improve commit title and description, fix some whitespace problem ] Signed-off-by: Christian Marangi <ansuelsmth@gmail.com> (cherry picked from commit 3f1e9f6f3b14385cab7ca6d1dcc2a4b658475bc3)
Diffstat (limited to 'target')
-rw-r--r--target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts13
1 files changed, 11 insertions, 2 deletions
diff --git a/target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts b/target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts
index 2df8b749df..aabd90ce64 100644
--- a/target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts
+++ b/target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts
@@ -60,12 +60,21 @@
partition@0 {
label = "u-boot";
- reg = <0x0 0xe0000>;
+ reg = <0x0 0x80000>;
read-only;
};
- partition@e0000 {
+ /*
+ * u-boot gets split here while keeping u-boot read-only,
+ * which allows safe usage of fw_setenv
+ */
+ partition@80000 {
label = "u-boot-env";
+ reg = <0x80000 0x60000>;
+ };
+
+ partition@e0000 {
+ label = "nvram";
reg = <0xe0000 0x100000>;
read-only;
};