[PATCH net-next v13 4/7] arm64: dts: mt2712: update ethernet device node
From: Biao Huang <hidden>
Date: 2022-03-14 08:04:49
Also in:
linux-arm-kernel, linux-devicetree, linux-mediatek, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
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 <redacted>
---
arch/arm64/boot/dts/mediatek/mt2712-evb.dts | 1 +
arch/arm64/boot/dts/mediatek/mt2712e.dtsi | 14 +++++++++-----
2 files changed, 10 insertions(+), 5 deletions(-)
diff --git a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
index 7d369fdd3117..11aa135aa0f3 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt2712-evb.dts@@ -110,6 +110,7 @@ ð { phy-handle = <ðernet_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 = <ð_default>; pinctrl-1 = <ð_sleep>;
diff --git a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
index a9cca9c146fd..9e850e04fffb 100644
--- a/arch/arm64/boot/dts/mediatek/mt2712e.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt2712e.dtsi@@ -726,7 +726,7 @@ queue2 { }; 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 @@ eth: ethernet@1101c000 { 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>;
--
2.25.1