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SubjectRe: [PATCH v2] arm64: dts: mt8195: Add Ethernet controller
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Il 19/10/22 11:15, Biao Huang ha scritto:
> Add Ethernet controller node for mt8195.
>
> Signed-off-by: Biao Huang <biao.huang@mediatek.com>
> ---
> arch/arm64/boot/dts/mediatek/mt8195-demo.dts | 88 ++++++++++++++++++++
> arch/arm64/boot/dts/mediatek/mt8195.dtsi | 86 +++++++++++++++++++
> 2 files changed, 174 insertions(+)
>

..snip..

> diff --git a/arch/arm64/boot/dts/mediatek/mt8195.dtsi b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> index 905d1a90b406..7f7d9f8e72ee 100644
> --- a/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> +++ b/arch/arm64/boot/dts/mediatek/mt8195.dtsi
> @@ -1042,6 +1042,92 @@ spis1: spi@1101e000 {
> status = "disabled";
> };
>
> + stmmac_axi_setup: stmmac-axi-config {

Didn't you get a warning during dtb build for these ones?
And if you did, why have you ignored it? :-)

> + snps,wr_osr_lmt = <0x7>;
> + snps,rd_osr_lmt = <0x7>;
> + snps,blen = <0 0 0 0 16 8 4>;
> + };
> +

..snip..

> +
> + eth: ethernet@11021000 {
> + compatible = "mediatek,mt8195-gmac", "snps,dwmac-5.10a";
> + reg = <0 0x11021000 0 0x4000>;
> + interrupts = <GIC_SPI 716 IRQ_TYPE_LEVEL_HIGH 0>;
> + interrupt-names = "macirq";
> + clock-names = "axi",
> + "apb",
> + "mac_cg",
> + "mac_main",
> + "ptp_ref",
> + "rmii_internal";
> + clocks = <&pericfg_ao CLK_PERI_AO_ETHERNET>,
> + <&pericfg_ao CLK_PERI_AO_ETHERNET_BUS>,
> + <&pericfg_ao CLK_PERI_AO_ETHERNET_MAC>,
> + <&topckgen CLK_TOP_SNPS_ETH_250M>,
> + <&topckgen CLK_TOP_SNPS_ETH_62P4M_PTP>,
> + <&topckgen CLK_TOP_SNPS_ETH_50M_RMII>;
> + assigned-clocks = <&topckgen CLK_TOP_SNPS_ETH_250M>,
> + <&topckgen CLK_TOP_SNPS_ETH_62P4M_PTP>,
> + <&topckgen CLK_TOP_SNPS_ETH_50M_RMII>;
> + assigned-clock-parents = <&topckgen CLK_TOP_ETHPLL_D2>,
> + <&topckgen CLK_TOP_ETHPLL_D8>,
> + <&topckgen CLK_TOP_ETHPLL_D10>;
> + power-domains = <&spm MT8195_POWER_DOMAIN_ETHER>;
> + mediatek,pericfg = <&infracfg_ao>;
> + snps,axi-config = <&stmmac_axi_setup>;
> + snps,mtl-rx-config = <&mtl_rx_setup>;
> + snps,mtl-tx-config = <&mtl_tx_setup>;
> + snps,txpbl = <16>;
> + snps,rxpbl = <16>;
> + snps,clk-csr = <0>;
> + status = "disabled";

Please move stmmac-axi-config, rx-queues-config, tx-queues-config here as a subnode
or in the root node, respecting address/size cells being zero.
Of course adding that here means also specifying {address,size}-cells = <0> in this
ethernet node.

Regards,
Angelo

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