From: Edward Chow <equu@openmail.cc>
Date: Mon, 2 Jan 2023 11:24:20 +0000 (+0800)
Subject: ath79: calibrate dlink dir-825 c1 and dir-835 a1 with nvmem
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=2a20dc717a897efe54f241636ee1566b695dbc7d;p=openwrt%2Fstaging%2Fxback.git

ath79: calibrate dlink dir-825 c1 and dir-835 a1 with nvmem

Driver for both soc (2.4GHz Wifi) and pci (5 GHz) now pull the calibration
data from the nvmem subsystem.

This allows us to move the userspace caldata extraction for the pci-e ath9k
supported wifi into the device-tree definition of the device.

Currently, "mac-address-ascii" cells only works for ethernet and wmac devices,
so PCI ath9k device uses the old method to calibrate.

Signed-off-by: Edward Chow <equu@openmail.cc>
---

diff --git a/target/linux/ath79/dts/ar9344_dlink_dir-8x5.dtsi b/target/linux/ath79/dts/ar9344_dlink_dir-8x5.dtsi
index 33c75f4967..8e21b0dd9e 100644
--- a/target/linux/ath79/dts/ar9344_dlink_dir-8x5.dtsi
+++ b/target/linux/ath79/dts/ar9344_dlink_dir-8x5.dtsi
@@ -29,6 +29,9 @@
 	/* default for ar934x, except for 1000M */
 	pll-data = <0x06000000 0x00000101 0x00001616>;
 
+	nvmem-cells = <&macaddr_lan>;
+	nvmem-cell-names = "mac-address-ascii";
+
 	phy-mode = "rgmii";
 	phy-handle = <&phy0>;
 };
@@ -55,7 +58,13 @@
 	ath9k: wifi@0,0 {
 		compatible = "pci168c,0030";
 		reg = <0x0000 0 0 0 0>;
-		qca,no-eeprom;
+		/* "mac-address-ascii" currently does not work for
+		   ath9k pci devices. these below are retained for future
+		   improvements. */
+		/* nvmem-cells = <&macaddr_wan>, <&cal_art_5000>;
+		   nvmem-cell-names = "mac-address-ascii", "calibration";
+		   mac-address-increment = <1>; */
+		qca,no-eeprom; /* remove this when "mac-address-ascii" works  */
 		gpio-controller;
 		#gpio-cells = <2>;
 	};
@@ -102,16 +111,40 @@
 				read-only;
 			};
 
-			partition@fe0000 {
+			mac: partition@fe0000 {
 				label = "mac";
 				reg = <0xfe0000 0x010000>;
 				read-only;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				macaddr_lan: macaddr@4 {
+					reg = <0x4 0x11>;
+				};
+
+				macaddr_wan: macaddr@18 {
+					reg = <0x18 0x11>;
+				};
 			};
 
-			partition@ff0000 {
+			art: partition@ff0000 {
 				label = "art";
 				reg = <0xff0000 0x010000>;
 				read-only;
+
+				compatible = "nvmem-cells";
+				#address-cells = <1>;
+				#size-cells = <1>;
+
+				cal_art_1000: cal@1000 {
+					reg = <0x1000 0x440>;
+				};
+
+				cal_art_5000: cal@5000 {
+					reg = <0x5000 0x440>;
+				};
 			};
 		};
 	};
@@ -127,5 +160,6 @@
 
 &wmac {
 	status = "okay";
-	qca,no-eeprom;
+	nvmem-cells = <&macaddr_lan>, <&cal_art_1000>;
+	nvmem-cell-names = "mac-address-ascii", "calibration";
 };
diff --git a/target/linux/ath79/generic/base-files/etc/board.d/02_network b/target/linux/ath79/generic/base-files/etc/board.d/02_network
index 5db3a2d3c4..3330cd2b0a 100644
--- a/target/linux/ath79/generic/base-files/etc/board.d/02_network
+++ b/target/linux/ath79/generic/base-files/etc/board.d/02_network
@@ -639,7 +639,6 @@ ath79_setup_macs()
 		;;
 	dlink,dir-825-c1|\
 	dlink,dir-835-a1)
-		lan_mac=$(mtd_get_mac_text "mac" 0x4)
 		wan_mac=$(mtd_get_mac_text "mac" 0x18)
 		;;
 	dlink,dir-842-c1|\
diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
index 961f5f46aa..14c8eb7d64 100644
--- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
+++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/10-ath9k-eeprom
@@ -23,9 +23,7 @@ case "$FIRMWARE" in
 	avm,fritzdvbc)
 		caldata_extract_reverse "urlader" 0x1541 0x440
 		;;
-	dlink,dir-505|\
-	dlink,dir-825-c1|\
-	dlink,dir-835-a1)
+	dlink,dir-505)
 		caldata_extract "art" 0x1000 0x440
 		ath9k_patch_mac $(mtd_get_mac_text "mac" 0x4)
 		;;