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

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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: Dylan Van Assche <me@dylanvanassche.be>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230406173148.28309-4-me@dylanvanassche.be
This commit is contained in:
Dylan Van Assche
2023-04-06 19:31:46 +02:00
committed by Bjorn Andersson
parent 77c7a41e05
commit 755b5e094f
1 changed files with 26 additions and 0 deletions
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26
arch/arm64/boot/dts/qcom/sdm845.dtsi
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@@ -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>;
};
};
};
};