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realtek: fix/add switchcore syscon nodes for RTL838x/RTL839x/RTL931x

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The switchcore node is the central location that describes the Realtek switch
register addresses starting at 0x1b000000. It will be used by current and
future regmap enabled device drivers. The upstream MDIO driver already makes
use of it by calling syscon_node_to_regmap(dev->parent->of_node);

In the current DTS base we have 3 issues that should be fixed:

- rtl838x.dtsi has a length of 0x20000 instead of 0x10000
- rtl839x.dtsi has a length of 0x20000 instead of 0x10000
- rtl931x.dtsi has no switchcore node at all

Align these mismatches with the "good" RTL930x template.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/18642
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Markus Stockhausen 2025-04-30 04:24:27 -04:00 committed by Hauke Mehrtens
parent 0bd5d5f748
commit 22854586c6
3 changed files with 7 additions and 2 deletions
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2
target/linux/realtek/dts/rtl838x.dtsi
View file

@ -252,7 +252,7 @@
switchcore@1b000000 {
compatible = "syscon", "simple-mfd";
reg = <0x1b000000 0x20000>;
reg = <0x1b000000 0x10000>;
mdio_aux: mdio-aux {
compatible = "realtek,rtl8380-aux-mdio";

2
target/linux/realtek/dts/rtl839x.dtsi
View file

@ -260,7 +260,7 @@
switchcore@1b000000 {
compatible = "syscon", "simple-mfd";
reg = <0x1b000000 0x20000>;
reg = <0x1b000000 0x10000>;
mdio_aux: mdio-aux {
compatible = "realtek,rtl8390-aux-mdio";

5
target/linux/realtek/dts/rtl931x.dtsi
View file

@ -161,6 +161,11 @@
};
};
switchcore@1b000000 {
compatible = "syscon", "simple-mfd";
reg = <0x1b000000 0x10000>;
};
pinmux: pinmux@1b001358 {
compatible = "pinctrl-single";
reg = <0x1b001358 0x4>;