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@xxxxxxxxxxxxxxxxx>
---
arch/arm64/boot/dts/qcom/sdm845.dtsi | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 338a715d110a..dc4b553cbe2e 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -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>
@@ -878,6 +879,14 @@ 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 {
@@ -3358,6 +3367,23 @@ 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>;
+ };
+ };
};
};
--
2.39.2
