arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/amd/amd-seattle-xgbe-b.dtsi
Extension
.dtsi
Size
2588 bytes
Lines
85
Domain
Architecture Layer
Bucket
arch/arm64
Inferred role
Architecture Layer: configuration, schema, or hardware description
Status
atlas-only

Why This File Exists

CPU and platform-specific kernel glue: boot entry, traps, syscall entry, interrupts, page tables, context switch, and low-level barriers.

Dependency Surface

Detected Declarations

Annotated Snippet

// SPDX-License-Identifier: GPL-2.0
/*
 * DTS file for AMD Seattle XGBE (RevB)
 *
 * Copyright (C) 2015 Advanced Micro Devices, Inc.
 */

	xgmac0: ethernet@e0700000 {
		compatible = "amd,xgbe-seattle-v1a";
		reg = <0 0xe0700000 0 0x80000>,
		      <0 0xe0780000 0 0x80000>,
		      <0 0xe1240800 0 0x00400>, /* SERDES RX/TX0 */
		      <0 0xe1250000 0 0x00060>, /* SERDES IR 1/2 */
		      <0 0xe12500f8 0 0x00004>; /* SERDES IR 2/2 */
		interrupts = <0 325 4>,
			     <0 346 1>, <0 347 1>, <0 348 1>, <0 349 1>,
			     <0 323 4>;
		amd,per-channel-interrupt;
		amd,speed-set = <0>;
		amd,serdes-blwc = <1>, <1>, <0>;
		amd,serdes-cdr-rate = <2>, <2>, <7>;
		amd,serdes-pq-skew = <10>, <10>, <18>;
		amd,serdes-tx-amp = <0>, <0>, <0>;
		amd,serdes-dfe-tap-config = <3>, <3>, <3>;
		amd,serdes-dfe-tap-enable = <0>, <0>, <7>;
		mac-address = [ 02 A1 A2 A3 A4 A5 ];
		clocks = <&xgmacclk0_dma_250mhz>, <&xgmacclk0_ptp_250mhz>;
		clock-names = "dma_clk", "ptp_clk";
		phy-mode = "xgmii";
		iommus = <&xgmac0_smmu 0x00 0x17>; /* 0-7, 16-23 */
		dma-coherent;
	};

	xgmac1: ethernet@e0900000 {
		compatible = "amd,xgbe-seattle-v1a";
		reg = <0 0xe0900000 0 0x80000>,
		      <0 0xe0980000 0 0x80000>,
		      <0 0xe1240c00 0 0x00400>, /* SERDES RX/TX1 */
		      <0 0xe1250080 0 0x00060>, /* SERDES IR 1/2 */
		      <0 0xe12500fc 0 0x00004>; /* SERDES IR 2/2 */
		interrupts = <0 324 4>,
			     <0 341 1>, <0 342 1>, <0 343 1>, <0 344 1>,
			     <0 322 4>;
		amd,per-channel-interrupt;
		amd,speed-set = <0>;
		amd,serdes-blwc = <1>, <1>, <0>;
		amd,serdes-cdr-rate = <2>, <2>, <7>;
		amd,serdes-pq-skew = <10>, <10>, <18>;
		amd,serdes-tx-amp = <0>, <0>, <0>;
		amd,serdes-dfe-tap-config = <3>, <3>, <3>;
		amd,serdes-dfe-tap-enable = <0>, <0>, <7>;
		mac-address = [ 02 B1 B2 B3 B4 B5 ];
		clocks = <&xgmacclk1_dma_250mhz>, <&xgmacclk1_ptp_250mhz>;
		clock-names = "dma_clk", "ptp_clk";
		phy-mode = "xgmii";
		iommus = <&xgmac1_smmu 0x00 0x17>; /* 0-7, 16-23 */
		dma-coherent;
	};

	xgmac0_smmu: iommu@e0600000 {
		 compatible = "arm,mmu-401";
		 reg = <0 0xe0600000 0 0x10000>;
		 #global-interrupts = <1>;
		 interrupts = /* Uses combined intr for both
			       * global and context
			       */
			      <0 336 4>,
			      <0 336 4>;
		#iommu-cells = <2>;
		dma-coherent;

Annotation

Implementation Notes