From: Biao Huang <biao.huang@mediatek.com>
Date: Mon, 14 Mar 2022 07:57:10 +0000 (+0800)
Subject: arm64: dts: mt2712: update ethernet device node
X-Git-Tag: v6.6.17~7931^2~76^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=79e1177809f2a18518e2013de4abe989ff3c1aa8;p=platform%2Fkernel%2Flinux-rpi.git

arm64: dts: mt2712: update ethernet device node

Since there are some changes in ethernet driver:
update ethernet device node in dts to accommodate to it.

1. stmmac_probe_config_dt() in stmmac_platform.c will initialize specified
   parameters according to compatible string "snps,dwmac-4.20a", then,
   dwmac-mediatek.c can skip the initialization if add compatible string
   "snps,dwmac-4.20a" in eth device node.
2. commit 882007ed7832 ("net-next: dt-binding: dwmac-mediatek: add more
   description for RMII") added rmii internal support, we should add
   corresponding clocks/clocks-names in eth device node.
3. add "snps,reset-delays-us = <0 10000 10000>;" to ensure reset delay
   can meet PHY requirement.

Signed-off-by: Biao Huang <biao.huang@mediatek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
index 7d369fd..11aa135 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
@@ -110,6 +110,7 @@
 	phy-handle = <&ethernet_phy0>;
 	mediatek,tx-delay-ps = <1530>;
 	snps,reset-gpio = <&pio 87 GPIO_ACTIVE_LOW>;
+	snps,reset-delays-us = <0 10000 10000>;
 	pinctrl-names = "default", "sleep";
 	pinctrl-0 = <&eth_default>;
 	pinctrl-1 = <&eth_sleep>;
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index de16c0d..a27b762 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
@@ -726,7 +726,7 @@
 	};
 
 	eth: ethernet@1101c000 {
-		compatible = "mediatek,mt2712-gmac";
+		compatible = "mediatek,mt2712-gmac", "snps,dwmac-4.20a";
 		reg = <0 0x1101c000 0 0x1300>;
 		interrupts = <GIC_SPI 237 IRQ_TYPE_LEVEL_LOW>;
 		interrupt-names = "macirq";
@@ -734,15 +734,19 @@
 		clock-names = "axi",
 			      "apb",
 			      "mac_main",
-			      "ptp_ref";
+			      "ptp_ref",
+			      "rmii_internal";
 		clocks = <&pericfg CLK_PERI_GMAC>,
 			 <&pericfg CLK_PERI_GMAC_PCLK>,
 			 <&topckgen CLK_TOP_ETHER_125M_SEL>,
-			 <&topckgen CLK_TOP_ETHER_50M_SEL>;
+			 <&topckgen CLK_TOP_ETHER_50M_SEL>,
+			 <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>;
 		assigned-clocks = <&topckgen CLK_TOP_ETHER_125M_SEL>,
-				  <&topckgen CLK_TOP_ETHER_50M_SEL>;
+				  <&topckgen CLK_TOP_ETHER_50M_SEL>,
+				  <&topckgen CLK_TOP_ETHER_50M_RMII_SEL>;
 		assigned-clock-parents = <&topckgen CLK_TOP_ETHERPLL_125M>,
-					 <&topckgen CLK_TOP_APLL1_D3>;
+					 <&topckgen CLK_TOP_APLL1_D3>,
+					 <&topckgen CLK_TOP_ETHERPLL_50M>;
 		power-domains = <&scpsys MT2712_POWER_DOMAIN_AUDIO>;
 		mediatek,pericfg = <&pericfg>;
 		snps,axi-config = <&stmmac_axi_setup>;