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ath79: use "fixed-layout" for Embedded Wireless devices 

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 <ansuelsmth@gmail.com>
Cc: Catrinel Catrinescu <cc@80211.de>
Cc: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rosen Penev <rosenp@gmail.com>
This commit is contained in:
Rafał Miłecki 2023-11-10 11:25:05 +01:00
parent 4d9108e0bf
commit c60e9d1839
2 changed files with 27 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
target/linux/ath79/dts/ar9331_embeddedwireless_dorin.dts
View File

@ -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 @@
&eth1 {
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>;
};
};

26
target/linux/ath79/dts/ar9344_embeddedwireless_balin.dts
View File

@ -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 @@
&eth1 {
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";
};