The J721E SoCs have two TMS320C66x DSP Core Subsystems (C66x CorePacs)
in the MAIN voltage domain, each with a C66x Fixed/Floating-Point DSP
Core, and 32 KB of L1P & L1D configurable SRAMs/Cache and an additional
288 KB of L2 configurable SRAM/Cache. These subsystems do not have
an MMU but contain a Region Address Translator (RAT) sub-module for
translating 32-bit processor addresses into larger bus addresses.
The inter-processor communication between the main A72 cores and
these processors is achieved through shared memory and Mailboxes.
Add the DT nodes for these DSP processor sub-systems in the common
k3-j721e-main.dtsi file.
Signed-off-by: Suman Anna <s-a...@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvu...@ti.com>
---
arch/arm/dts/k3-j721e-common-proc-board.dts | 2 ++
arch/arm/dts/k3-j721e-main.dtsi | 24 +++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts
b/arch/arm/dts/k3-j721e-common-proc-board.dts
index 21afdc8ce0..a548277718 100644
--- a/arch/arm/dts/k3-j721e-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-common-proc-board.dts
@@ -20,6 +20,8 @@
remoteproc3 = &main_r5fss0_core1;
remoteproc4 = &main_r5fss1_core0;
remoteproc5 = &main_r5fss1_core1;
+ remoteproc6 = &c66_0;
+ remoteproc7 = &c66_1;
};
};
diff --git a/arch/arm/dts/k3-j721e-main.dtsi b/arch/arm/dts/k3-j721e-main.dtsi
index 59ca4e5686..c3aa0cdcf1 100644
--- a/arch/arm/dts/k3-j721e-main.dtsi
+++ b/arch/arm/dts/k3-j721e-main.dtsi
@@ -304,4 +304,28 @@
loczrama = <1>;
};
};
+
+ c66_0: dsp@4d80800000 {
+ compatible = "ti,j721e-c66-dsp";
+ reg = <0x4d 0x80800000 0x00 0x00048000>,
+ <0x4d 0x80e00000 0x00 0x00008000>,
+ <0x4d 0x80f00000 0x00 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ ti,sci = <&dmsc>;
+ ti,sci-dev-id = <142>;
+ ti,sci-proc-ids = <0x03 0xFF>;
+ resets = <&k3_reset 142 1>;
+ };
+
+ c66_1: dsp@4d81800000 {
+ compatible = "ti,j721e-c66-dsp";
+ reg = <0x4d 0x81800000 0x00 0x00048000>,
+ <0x4d 0x81e00000 0x00 0x00008000>,
+ <0x4d 0x81f00000 0x00 0x00008000>;
+ reg-names = "l2sram", "l1pram", "l1dram";
+ ti,sci = <&dmsc>;
+ ti,sci-dev-id = <143>;
+ ti,sci-proc-ids = <0x04 0xFF>;
+ resets = <&k3_reset 143 1>;
+ };
};
--
2.22.0
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