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ramips: mt7621: ASUS RT-AX53U add NMBM, nest firmware

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Nests kernel and ubi into firmware partition in-order to be compatible
with OEM firmware. This allows restoring oem firmware from a backup of
firmware2. Add jffs2 partition which is present in the oem firmware.
Add support for mediatek NMBM (wear leveling on newer mediatek devices).
Exclude UBI partition from NMBM management.
Continues PR #10685.

Tested-by: Felix Baumann <felix.bau@gmx.de>
Signed-off-by: Felix Baumann <felix.bau@gmx.de>
(cherry picked from commit 787ecdf66d)
This commit is contained in:
Felix Baumann 2023-03-31 06:16:04 +02:00
parent 85b6a7a195
commit fc1750b305
1 changed files with 26 additions and 7 deletions
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33
target/linux/ramips/dts/mt7621_asus_rt-ax53u.dts
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@ -63,6 +63,11 @@
&nand {
status = "okay";
mediatek,nmbm;
mediatek,bmt-remap-range =
<0x000000 0x7e0000>,
<0x35e0000 0x7800000>;
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
@ -110,13 +115,22 @@
};
partition@3e0000 {
label = "kernel";
reg = <0x3e0000 0x400000>;
};
label = "firmware";
reg = <0x3e0000 0x3200000>;
partition@7e0000 {
label = "ubi";
reg = <0x7e0000 0x2e00000>;
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "kernel";
reg = <0x0 0x400000>;
};
partition@400000 {
label = "ubi";
reg = <0x400000 0x2e00000>;
};
};
partition@35e0000 {
@ -124,7 +138,12 @@
reg = <0x35e0000 0x3200000>;
};
/* Last 8M possibly store the bad block table */
partition@67e0000 {
label = "jffs2";
reg = <0x67e0000 0x1020000>;
};
/* Last 8M are reserved for NMBM management (bad blocks) */
};
};