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ARM: dts: ast2600: Add MDIO devices

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There are 4 MDIO bus controllers in AST2600 SOC.  Each of them can
connect to one or more PHY chips and is flexible to work with the 4 MAC
devices in AST2600.  On AST2600 EVB, MDIO 0,1,2,3 connect to the PHY
chips used by MAC 0,1,2,3 respectively.

Signed-off-by: Dylan Hung <dylan_hung@aspeedtech.com>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
This commit is contained in:
Dylan Hung 2021-12-09 10:12:26 +08:00 committed by Tom Rini
parent ac4fda7bc2
commit abc75897ca
2 changed files with 109 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

68
arch/arm/dts/ast2600-evb.dts
View File

@ -163,6 +163,74 @@
pinctrl-0 = <&pinctrl_i2c9_default>;
};
&mdio0 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ethphy0: ethernet-phy@0 {
reg = <0>;
};
};
&mdio1 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ethphy1: ethernet-phy@0 {
reg = <0>;
};
};
&mdio2 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ethphy2: ethernet-phy@0 {
reg = <0>;
};
};
&mdio3 {
status = "okay";
#address-cells = <1>;
#size-cells = <0>;
ethphy3: ethernet-phy@0 {
reg = <0>;
};
};
&mac0 {
status = "okay";
phy-mode = "rgmii-rxid";
phy-handle = <&ethphy0>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rgmii1_default>;
};
&mac1 {
status = "okay";
phy-mode = "rgmii-rxid";
phy-handle = <&ethphy1>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rgmii2_default>;
};
&mac2 {
status = "okay";
phy-mode = "rgmii";
phy-handle = <&ethphy2>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rgmii3_default>;
};
&mac3 {
status = "okay";
phy-mode = "rgmii";
phy-handle = <&ethphy3>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_rgmii4_default>;
};
&scu {
mac0-clk-delay = <0x1d 0x1c
0x10 0x17

46
arch/arm/dts/ast2600.dtsi
View File

@ -210,11 +210,47 @@
interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
};
mdio: ethernet@1e650000 {
compatible = "aspeed,aspeed-mdio";
reg = <0x1e650000 0x40>;
resets = <&rst ASPEED_RESET_MII>;
status = "disabled";
mdio: bus@1e650000 {
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0x1e650000 0x100>;
mdio0: mdio@0 {
compatible = "aspeed,ast2600-mdio";
reg = <0 0x8>;
resets = <&rst ASPEED_RESET_MII>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mdio1_default>;
status = "disabled";
};
mdio1: mdio@8 {
compatible = "aspeed,ast2600-mdio";
reg = <0x8 0x8>;
resets = <&rst ASPEED_RESET_MII>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mdio2_default>;
status = "disabled";
};
mdio2: mdio@10 {
compatible = "aspeed,ast2600-mdio";
reg = <0x10 0x8>;
resets = <&rst ASPEED_RESET_MII>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mdio3_default>;
status = "disabled";
};
mdio3: mdio@18 {
compatible = "aspeed,ast2600-mdio";
reg = <0x18 0x8>;
resets = <&rst ASPEED_RESET_MII>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_mdio4_default>;
status = "disabled";
};
};
mac0: ftgmac@1e660000 {