[PATCH 1/4] arm64: dts: ti: k3-am62-phycore-som: Enable Co-processors
From: Daniel Schultz <hidden>
Date: 2025-05-06 11:55:40
Also in:
linux-devicetree, lkml
Subsystem:
arm/texas instruments k3 architecture, the rest · Maintainers:
Nishanth Menon, Vignesh Raghavendra, Tero Kristo, Linus Torvalds
For every remote processor, set up dedicated memory regions and associate the required mailbox channels. Allocate two memory areas per remote core: one 1MB region for vring shared buffers, and another for external memory used by the remote processor for its resource table and trace buffer. Signed-off-by: Daniel Schultz <redacted> --- .../boot/dts/ti/k3-am62-phycore-som.dtsi | 35 +++++++++++++++---- 1 file changed, 29 insertions(+), 6 deletions(-)
diff --git a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
index 2ef4cbaec789..71d165a7abe0 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi@@ -57,6 +57,18 @@ mcu_m4fss_memory_region: m4f-memory@9cc00000 { no-map; }; + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9da00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9da00000 0x00 0x100000>; + no-map; + }; + + wkup_r5fss0_core0_memory_region: r5f-memory@9db00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9db00000 0x00 0xc00000>; + no-map; + }; + secure_tfa_ddr: tfa@9e780000 { reg = <0x00 0x9e780000 0x00 0x80000>; alignment = <0x1000>;
@@ -68,12 +80,6 @@ secure_ddr: optee@9e800000 { alignment = <0x1000>; no-map; }; - - wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9db00000 0x00 0x00c00000>; - no-map; - }; }; vcc_5v0_som: regulator-vcc-5v0-som {
@@ -226,10 +232,17 @@ cpsw3g_phy1: ethernet-phy@1 { }; &mailbox0_cluster0 { + status = "okay"; + mbox_m4_0: mbox-m4-0 { ti,mbox-rx = <0 0 0>; ti,mbox-tx = <1 0 0>; }; + + mbox_r5_0: mbox-r5-0 { + ti,mbox-rx = <2 0 0>; + ti,mbox-tx = <3 0 0>; + }; }; &main_i2c0 {
@@ -365,3 +378,13 @@ &sdhci0 { non-removable; status = "okay"; }; + +&wkup_r5fss0 { + status = "okay"; +}; + +&wkup_r5fss0_core0 { + mboxes = <&mailbox0_cluster0 &mbox_r5_0>; + memory-region = <&wkup_r5fss0_core0_dma_memory_region>, + <&wkup_r5fss0_core0_memory_region>; +};
--
2.25.1