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arm64: dts: broadcom: bcm4908: describe internal switch

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BCM4908 has internal switch with 5 GPHYs. Ports 0 - 3 are always
connected to the internal PHYs. Remaining ports depend on device setup.

Asus GT-AC5300 has an extra switch with its PHYs accessible using the
internal MDIO.

CPU port and Ethernet interface remain to be documented.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Rafał Miłecki 2021-01-13 12:14:06 +01:00 committed by Florian Fainelli
parent 1b88c6ed26
commit 527a3ac9bd
2 changed files with 135 additions and 1 deletions
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51
arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
View File

@ -44,6 +44,57 @@
};
};
&ports {
port@0 {
label = "lan2";
};
port@1 {
label = "lan1";
};
port@2 {
label = "lan6";
};
port@3 {
label = "lan5";
};
/* External BCM53134S switch */
port@7 {
label = "sw";
reg = <7>;
fixed-link {
speed = <1000>;
full-duplex;
};
};
};
&mdio {
/* lan8 */
ethernet-phy@0 {
reg = <0>;
};
/* lan7 */
ethernet-phy@1 {
reg = <1>;
};
/* lan4 */
ethernet-phy@2 {
reg = <2>;
};
/* lan3 */
ethernet-phy@3 {
reg = <3>;
};
};
&nandcs {
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;

85
arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
View File

@ -108,7 +108,7 @@
compatible = "simple-bus";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x00 0x00 0x80000000 0x10000>;
ranges = <0x00 0x00 0x80000000 0xd0000>;
usb@c300 {
compatible = "generic-ehci";
@ -130,6 +130,89 @@
interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
status = "disabled";
};
ethernet-switch@80000 {
compatible = "simple-bus";
#size-cells = <1>;
#address-cells = <1>;
ranges = <0 0x80000 0x50000>;
ethernet-switch@0 {
compatible = "brcm,bcm4908-switch";
reg = <0x0 0x40000>,
<0x40000 0x110>,
<0x40340 0x30>,
<0x40380 0x30>,
<0x40600 0x34>,
<0x40800 0x208>;
reg-names = "core", "reg", "intrl2_0",
"intrl2_1", "fcb", "acb";
interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>,
<GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
brcm,num-gphy = <5>;
brcm,num-rgmii-ports = <2>;
#address-cells = <1>;
#size-cells = <0>;
ports: ports {
#address-cells = <1>;
#size-cells = <0>;
port@0 {
reg = <0>;
phy-mode = "internal";
phy-handle = <&phy8>;
};
port@1 {
reg = <1>;
phy-mode = "internal";
phy-handle = <&phy9>;
};
port@2 {
reg = <2>;
phy-mode = "internal";
phy-handle = <&phy10>;
};
port@3 {
reg = <3>;
phy-mode = "internal";
phy-handle = <&phy11>;
};
};
};
mdio: mdio@405c0 {
compatible = "brcm,unimac-mdio";
reg = <0x405c0 0x8>;
reg-names = "mdio";
#size-cells = <0>;
#address-cells = <1>;
phy8: ethernet-phy@8 {
reg = <8>;
};
phy9: ethernet-phy@9 {
reg = <9>;
};
phy10: ethernet-phy@a {
reg = <10>;
};
phy11: ethernet-phy@b {
reg = <11>;
};
phy12: ethernet-phy@c {
reg = <12>;
};
};
};
};
bus@ff800000 {