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arm64: dts: ti: k3-j721e-main: Add C66x DSP nodes

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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.

The following firmware names are used by default for these cores, and
can be overridden in a board dts file if desired:
    C66x_0 DSP: j7-c66_0-fw
    C66x_1 DSP: j7-c66_1-fw

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20200825172145.13186-3-s-anna@ti.com
This commit is contained in:
Suman Anna 2020-08-25 12:21:39 -05:00 committed by Nishanth Menon
parent 74b5742b59
commit eb9a2a637a
1 changed files with 26 additions and 0 deletions
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26
arch/arm64/boot/dts/ti/k3-j721e-main.dtsi
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@ -1349,4 +1349,30 @@
assigned-clocks = <&k3_clks 253 1>;
assigned-clock-parents = <&k3_clks 253 5>;
};
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>;
firmware-name = "j7-c66_0-fw";
};
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>;
firmware-name = "j7-c66_1-fw";
};
};