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From 961c38974fa5b34d6232d7485120e4392d279ab4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Wed, 13 Jan 2021 12:14:06 +0100
Subject: [PATCH] arm64: dts: broadcom: bcm4908: describe internal switch
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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>
---
.../bcm4908/bcm4908-asus-gt-ac5300.dts | 51 +++++++++++
.../boot/dts/broadcom/bcm4908/bcm4908.dtsi | 85 ++++++++++++++++++-
2 files changed, 135 insertions(+), 1 deletion(-)
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
@@ -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 */
+ phy@0 {
+ reg = <0>;
+ };
+
+ /* lan7 */
+ phy@1 {
+ reg = <1>;
+ };
+
+ /* lan4 */
+ phy@2 {
+ reg = <2>;
+ };
+
+ /* lan3 */
+ phy@3 {
+ reg = <3>;
+ };
+};
+
&nandcs {
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
@@ -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";
};
+
+ switch@80000 {
+ compatible = "simple-bus";
+ #size-cells = <1>;
+ #address-cells = <1>;
+ ranges = <0 0x80000 0x50000>;
+
+ 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 = <1>;
+ #address-cells = <0>;
+
+ phy8: phy@8 {
+ reg = <8>;
+ };
+
+ phy9: phy@9 {
+ reg = <9>;
+ };
+
+ phy10: phy@a {
+ reg = <10>;
+ };
+
+ phy11: phy@b {
+ reg = <11>;
+ };
+
+ phy12: phy@c {
+ reg = <12>;
+ };
+ };
+ };
};
bus@ff800000 {
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