From: David Bauer <mail@david-bauer.net>
Date: Thu, 30 Mar 2023 01:51:08 +0000 (+0200)
Subject: ramips: define remapping-range for DAP-X1860
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=076da59f17803e9412ef5e50988aff6c7e536292;p=openwrt%2Fstaging%2Fnbd.git

ramips: define remapping-range for DAP-X1860

Prevent the BBT translation layer from remapping the UBI used for
storing rootfs.

Explicitly define the number of blocks reserved for remapping.

Signed-off-by: David Bauer <mail@david-bauer.net>
---

diff --git a/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts b/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts
index edc1c6544c..1aa3f7c91b 100644
--- a/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts
+++ b/target/linux/ramips/dts/mt7621_dlink_dap-x1860-a1.dts
@@ -94,6 +94,13 @@
 	status = "okay";
 
 	mediatek,nmbm;
+	/* rsvd = Remapping Range / NAND Erase-Size */
+	/* rsvd = 0x800000 / 0x20000 */
+	mediatek,bmt-max-reserved-blocks = <64>;
+	/* Remapping should include raw-nand we operate upon without UBI layer. */
+	/* This includes (at least) the kernel which has to be loaded by U-Boot.*/
+	mediatek,bmt-remap-range =
+		<0x0 0x980000>;
 
 	partitions {
 		compatible = "fixed-partitions";