From c60e9d183995823a52669ecae40669154614abe7 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Fri, 10 Nov 2023 11:25:05 +0100 Subject: [PATCH] ath79: use "fixed-layout" for Embedded Wireless devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Those devices have Ethernet interfaces using base MAC address increased by 0x40 in the 3rd indexed byte (00:00:00:FF:00:00). To describe that we were using a custom (downstream) "mac-address-increment-byte" property. The same result can be achieved by using "mac-base" with a properly adjusted offset value (0x40 << 16). It may be not pretty but it should work without custom property or downstream kernel patch to support it. Cc: Ansuel Smith Cc: Catrinel Catrinescu Cc: Felix Fietkau Signed-off-by: Rafał Miłecki Reviewed-by: Rosen Penev --- .../dts/ar9331_embeddedwireless_dorin.dts | 26 +++++++++---------- .../dts/ar9344_embeddedwireless_balin.dts | 26 ++++++++++--------- 2 files changed, 27 insertions(+), 25 deletions(-) diff --git a/target/linux/ath79/dts/ar9331_embeddedwireless_dorin.dts b/target/linux/ath79/dts/ar9331_embeddedwireless_dorin.dts index de6b709b5cb..6286f203efc 100644 --- a/target/linux/ath79/dts/ar9331_embeddedwireless_dorin.dts +++ b/target/linux/ath79/dts/ar9331_embeddedwireless_dorin.dts @@ -85,6 +85,18 @@ label = "art"; reg = <0xff0000 0x010000>; read-only; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + macaddr_art_1002: macaddr@1002 { + compatible = "mac-base"; + reg = <0x1002 0x6>; + #nvmem-cell-cells = <1>; + }; + }; }; }; }; @@ -93,10 +105,8 @@ ð1 { status = "okay"; - nvmem-cells = <&macaddr_art_1002>; + nvmem-cells = <&macaddr_art_1002 0x400000>; nvmem-cell-names = "mac-address"; - mac-address-increment-byte = <3>; - mac-address-increment = <0x40>; }; &mdio1 { @@ -108,13 +118,3 @@ mtd-cal-data = <&art 0x1000>; }; - -&art { - compatible = "nvmem-cells"; - #address-cells = <1>; - #size-cells = <1>; - - macaddr_art_1002: macaddr@1002 { - reg = <0x1002 0x6>; - }; -}; diff --git a/target/linux/ath79/dts/ar9344_embeddedwireless_balin.dts b/target/linux/ath79/dts/ar9344_embeddedwireless_balin.dts index a84c273f862..de138658180 100644 --- a/target/linux/ath79/dts/ar9344_embeddedwireless_balin.dts +++ b/target/linux/ath79/dts/ar9344_embeddedwireless_balin.dts @@ -83,16 +83,20 @@ reg = <0xff0000 0x010000>; read-only; - compatible = "nvmem-cells"; - #address-cells = <1>; - #size-cells = <1>; + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; - calibration_art_1000: calibration_data@1000 { - reg = <0x1000 0x440>; - }; + calibration_art_1000: calibration_data@1000 { + reg = <0x1000 0x440>; + }; - macaddr_art_1002: macaddr@1002 { - reg = <0x1002 0x6>; + macaddr_art_1002: macaddr@1002 { + compatible = "mac-base"; + reg = <0x1002 0x6>; + #nvmem-cell-cells = <1>; + }; }; }; }; @@ -106,10 +110,8 @@ ð1 { status = "okay"; - nvmem-cells = <&macaddr_art_1002>; + nvmem-cells = <&macaddr_art_1002 0x400000>; nvmem-cell-names = "mac-address"; - mac-address-increment-byte = <3>; - mac-address-increment = <0x40>; gmac-config { device = <&gmac>; @@ -121,7 +123,7 @@ &wmac { status = "okay"; - nvmem-cells = <&macaddr_art_1002>, <&calibration_art_1000>; + nvmem-cells = <&macaddr_art_1002 0>, <&calibration_art_1000>; nvmem-cell-names = "mac-address", "calibration"; };