Commit 755b5e09 authored by Dylan Van Assche's avatar Dylan Van Assche Committed by Bjorn Andersson
Browse files

arm64: dts: qcom: sdm845: add SLPI FastRPC support 



Qualcomm SDM845 SoC features a SLPI DSP which uses FastRPC through
an allocated memory region to load files from the host filesystem
such as sensor configuration files.

Add a FastRPC node at /dev/fastrpc-sdsp and a DMA region, similar to
downstream, to allow userspace to communicate with the SLPI via the
FastRPC interface for initializing the sensors on the SLPI.

Signed-off-by: default avatarDylan Van Assche <me@dylanvanassche.be>
Signed-off-by: default avatarBjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230406173148.28309-4-me@dylanvanassche.be
parent 77c7a41e

arch/arm64/boot/dts/qcom/sdm845.dtsi

+26 −0
Original line number Diff line number Diff line
@@ -13,6 +13,7 @@ 
#include <dt-bindings/clock/qcom,rpmh.h>

#include <dt-bindings/clock/qcom,videocc-sdm845.h>

#include <dt-bindings/dma/qcom-gpi.h>

#include <dt-bindings/firmware/qcom,scm.h>

#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/interconnect/qcom,osm-l3.h>

#include <dt-bindings/interconnect/qcom,sdm845.h>
@@ -876,6 +877,14 @@ mdata_mem: mpss-metadata { 
			size = <0 0x4000>;

			no-map;

		};



		fastrpc_mem: fastrpc {

			compatible = "shared-dma-pool";

			alloc-ranges = <0x0 0x00000000 0x0 0xffffffff>;

			alignment = <0x0 0x400000>;

			size = <0x0 0x1000000>;

			reusable;

		};

	};



	adsp_pas: remoteproc-adsp {
@@ -3361,6 +3370,23 @@ glink-edge { 
				label = "dsps";

				qcom,remote-pid = <3>;

				mboxes = <&apss_shared 24>;



				fastrpc {

					compatible = "qcom,fastrpc";

					qcom,glink-channels = "fastrpcglink-apps-dsp";

					label = "sdsp";

					qcom,non-secure-domain;

					qcom,vmids = <QCOM_SCM_VMID_HLOS QCOM_SCM_VMID_MSS_MSA

						      QCOM_SCM_VMID_SSC_Q6 QCOM_SCM_VMID_ADSP_Q6>;

					memory-region = <&fastrpc_mem>;

					#address-cells = <1>;

					#size-cells = <0>;



					compute-cb@0 {

						compatible = "qcom,fastrpc-compute-cb";

						reg = <0>;

					};

				};

			};

		};