From: Sven Eckelmann <sven@narfation.org>
Date: Tue, 25 Oct 2022 07:12:16 +0000 (+0200)
Subject: ipq40xx: utilize nvmem-cells for plasmacloud,pa2200
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=ce6c9e0328a563082d12397068fbf2eb2a227d24;p=openwrt%2Fstaging%2Fnbd.git

ipq40xx: utilize nvmem-cells for plasmacloud,pa2200

The calibration data and mac addresses on this device are stored in the
0:ART partition. It is therefore possible to move the code to handle them
directly to the devicetree instead of the various scripts.

But the actual relevant information about the partition layout is provided
by the bootloader via bootargs (mtdparts) and not via the devicetree
itself. Instead of using a fixed-partition template, the mtd dynamic
partitions support from the upstream kernel is used.

Reported-by: Robert Marko <robert.marko@sartura.hr>
Tested-by: Michaël BILCOT <michael.bilcot@gmail.com>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
---

diff --git a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
index 246bc6ca21..7498e1c710 100644
--- a/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
+++ b/target/linux/ipq40xx/base-files/etc/hotplug.d/firmware/11-ath10k-caldata
@@ -34,9 +34,6 @@ case "$FIRMWARE" in
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C800 -e 0x212 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1") || \
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C000 -e 0x212 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1")
 		;;
-	plasmacloud,pa2200)
-		caldata_extract "0:ART" 0x9000 0x2f20
-		;;
 	linksys,ea8300 |\
 	linksys,mr8300)
 		caldata_extract "ART" 0x9000 0x2f20
@@ -75,8 +72,7 @@ case "$FIRMWARE" in
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C800 -e 0x207 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1") || \
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3D000 -e 0x207 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1")
 		;;
-	cellc,rtl30vw |\
-	plasmacloud,pa2200)
+	cellc,rtl30vw)
 		caldata_extract "0:ART" 0x1000 0x2f20
 		;;
 	devolo,magic-2-wifi-next)
@@ -169,8 +165,7 @@ case "$FIRMWARE" in
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3D000 -e 0x208 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1") || \
 		/usr/bin/fritz_cal_extract -i 1 -s 0x3C000 -e 0x208 -l 12064 -o /lib/firmware/$FIRMWARE $(find_mtd_chardev "urlader1")
 		;;
-	cellc,rtl30vw |\
-	plasmacloud,pa2200)
+	cellc,rtl30vw)
 		caldata_extract "0:ART" 0x5000 0x2f20
 		;;
 	devolo,magic-2-wifi-next)
diff --git a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts
index 461f05bc73..d7dcf053be 100644
--- a/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts
+++ b/target/linux/ipq40xx/files/arch/arm/boot/dts/qcom-ipq4019-pa2200.dts
@@ -140,7 +140,36 @@
 		compatible = "jedec,spi-nor";
 		reg = <0>;
 		spi-max-frequency = <24000000>;
+
 		/* partitions are passed via bootloader */
+		partitions {
+			partition-art {
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+				label = "0:ART";
+
+				precal_art_1000: precal@1000 {
+					reg = <0x1000 0x2f20>;
+				};
+
+				precal_art_5000: precal@5000 {
+					reg = <0x5000 0x2f20>;
+				};
+
+				precal_art_9000: precal@9000 {
+					reg = <0x9000 0x2f20>;
+				};
+
+				macaddr_gmac0: macaddr@0 {
+					reg = <0x0 0x6>;
+				};
+
+				macaddr_gmac1: macaddr@6 {
+					reg = <0x6 0x6>;
+				};
+			};
+		};
 	};
 };
 
@@ -171,6 +200,9 @@
 			reg = <0x00010000 0 0 0 0>;
 			qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
 			ieee80211-freq-limit = <5170000 5350000>;
+
+			nvmem-cell-names = "pre-calibration";
+			nvmem-cells = <&precal_art_9000>;
 		};
 	};
 };
@@ -178,10 +210,16 @@
 &wifi0 {
 	status = "okay";
 	qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
+
+	nvmem-cell-names = "pre-calibration";
+	nvmem-cells = <&precal_art_1000>;
 };
 
 &wifi1 {
 	status = "okay";
 	qcom,ath10k-calibration-variant = "PlasmaCloud-PA2200";
 	ieee80211-freq-limit = <5470000 5875000>;
+
+	nvmem-cell-names = "pre-calibration";
+	nvmem-cells = <&precal_art_5000>;
 };