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 | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
index 8dcfe6293762..5a6c7d00719b 100644
--- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
+++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
@@ -878,6 +878,14 @@ mdata_mem: mpss-metadata {
size = <0 0x4000>;
no-map;
};
+
+ fastrpc_mem: fastrpc {
+ compatible = "shared-dma-pool";
+ reusable;
+ alloc-ranges = <0 0x00000000 0 0xffffffff>;
+ alignment = <0 0x400000>;
+ size = <0 0x1000000>;
+ };
};
adsp_pas: remoteproc-adsp {
@@ -3344,6 +3352,22 @@ 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 = <0x3 0xF 0x5 0x6>;
+ memory-region = <&fastrpc_mem>;
+ qcom,assign-all-mem;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ compute-cb {
+ compatible = "qcom,fastrpc-compute-cb";
+ };
+ }
};
};
--
2.39.2
