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Message-ID: <20250506133604.294920-2-d.schultz@phytec.de>
Date: Tue, 6 May 2025 06:36:01 -0700
From: Daniel Schultz <d.schultz@...tec.de>
To: <nm@...com>, <vigneshr@...com>, <kristo@...nel.org>, <robh@...nel.org>,
<krzk+dt@...nel.org>, <conor+dt@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
CC: <upstream@...ts.phytec.de>, <w.egorov@...tec.de>, Daniel Schultz
<d.schultz@...tec.de>
Subject: [PATCH v2 1/4] arm64: dts: ti: k3-am62-phycore-som: Enable Co-processors
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 <d.schultz@...tec.de>
---
.../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 55ed418c023b..3075979935d5 100644
--- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi
@@ -64,6 +64,18 @@ mcu_m4fss_memory_region: m4f-memory@...00000 {
no-map;
};
+ wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0x9da00000 0x00 0x100000>;
+ no-map;
+ };
+
+ wkup_r5fss0_core0_memory_region: r5f-memory@...00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0x9db00000 0x00 0xc00000>;
+ no-map;
+ };
+
secure_tfa_ddr: tfa@...80000 {
reg = <0x00 0x9e780000 0x00 0x80000>;
alignment = <0x1000>;
@@ -75,12 +87,6 @@ secure_ddr: optee@...00000 {
alignment = <0x1000>;
no-map;
};
-
- wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@...00000 {
- compatible = "shared-dma-pool";
- reg = <0x00 0x9db00000 0x00 0x00c00000>;
- no-map;
- };
};
vcc_5v0_som: regulator-vcc-5v0-som {
@@ -240,10 +246,17 @@ 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_pktdma {
@@ -386,3 +399,13 @@ &sdhci0 {
bootph-all;
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
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