arch/arm64/boot/dts/qcom/sc7280-herobrine-lte-sku.dtsi

Source file repositories/reference/linux-study-clean/arch/arm64/boot/dts/qcom/sc7280-herobrine-lte-sku.dtsi

File Facts

System
Linux kernel
Corpus path
arch/arm64/boot/dts/qcom/sc7280-herobrine-lte-sku.dtsi
Extension
.dtsi
Size
1570 bytes
Lines
62
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+ OR MIT)
/*
 * Google Herobrine dts fragment for LTE SKUs
 *
 * Copyright 2022 Google LLC.
 */
/* Modem setup is different on Chrome setups than typical Qualcomm setup */

/ {
	reserved-memory {
		mba_mem: memory@9c700000 {
			reg = <0x0 0x9c700000 0x0 0x200000>;
			no-map;
		};

		mdata_mem: mpss-metadata {
			alloc-ranges = <0x0 0xa0000000 0x0 0x20000000>;
			size = <0x0 0x4000>;
			no-map;
		};
	};
};

&ipa {
	qcom,gsi-loader = "modem";
	status = "okay";
};

&remoteproc_mpss {
	compatible = "qcom,sc7280-mss-pil";
	reg = <0 0x04080000 0 0x10000>, <0 0x04180000 0 0x48>;
	reg-names = "qdsp6", "rmb";

	clocks = <&gcc GCC_MSS_CFG_AHB_CLK>,
		 <&gcc GCC_MSS_OFFLINE_AXI_CLK>,
		 <&gcc GCC_MSS_SNOC_AXI_CLK>,
		 <&rpmhcc RPMH_PKA_CLK>,
		 <&rpmhcc RPMH_CXO_CLK>;
	clock-names = "iface", "offline", "snoc_axi", "pka", "xo";

	iommus = <&apps_smmu 0x124 0x0>, <&apps_smmu 0x488 0x7>;
	interconnects = <&mc_virt MASTER_LLCC 0 &mc_virt SLAVE_EBI1 0>;
	memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>;
	firmware-name = "qcom/sc7280-herobrine/modem/mba.mbn",
			"qcom/sc7280-herobrine/modem/qdsp6sw.mbn";

	resets = <&aoss_reset AOSS_CC_MSS_RESTART>,
		 <&pdc_reset PDC_MODEM_SYNC_RESET>;
	reset-names = "mss_restart", "pdc_reset";

	qcom,halt-regs = <&tcsr_1 0x3000 0x5000 0x8000 0x13000>;
	qcom,ext-regs = <&tcsr_2 0x10000 0x10004 &tcsr_1 0x6004 0x6008>;
	qcom,qaccept-regs = <&tcsr_1 0x3030 0x3040 0x3020>;

	status = "okay";
};

/* Increase the size from 2.5MB to 8MB */
&rmtfs_mem {
	reg = <0x0 0x9c900000 0x0 0x800000>;
};

Annotation

Implementation Notes