From b05a6c145001e99348a2fe33958be912f4eb8d4d Mon Sep 17 00:00:00 2001 From: Devarsh Thakkar Date: Fri, 2 May 2025 17:03:21 -0500 Subject: [PATCH] arm64: dts: ti: k3-am62p5-sk: Enable IPC with remote processors For each remote proc, reserve memory for IPC and bind the mailbox assignments. Two memory regions are reserved for each remote processor. The first region of 1MB of memory is used for Vring shared buffers and the second region is used as external memory to the remote processor for the resource table and for tracebuffer allocations. Signed-off-by: Devarsh Thakkar Signed-off-by: Hari Nagalla Signed-off-by: Judith Mendez Reviewed-by: Andrew Davis Link: https://lore.kernel.org/r/20250502220325.3230653-8-jm@ti.com Signed-off-by: Nishanth Menon --- arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 50 ++++++++++++++++++++++--- 1 file changed, 44 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts index fa94f723aef0..83c37de7d338 100644 --- a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts @@ -49,19 +49,37 @@ #size-cells = <2>; ranges; - secure_tfa_ddr: tfa@9e780000 { - reg = <0x00 0x9e780000 0x00 0x80000>; + mcu_r5fss0_core0_dma_memory_region: mcu-r5fss-dma-memory-region@9b800000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b800000 0x00 0x100000>; no-map; }; - secure_ddr: optee@9e800000 { - reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */ + mcu_r5fss0_core0_memory_region: mcu-r5fss-memory-region@9b900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b900000 0x00 0xf00000>; no-map; }; - wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 { + wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9c800000 { compatible = "shared-dma-pool"; - reg = <0x00 0x9c900000 0x00 0x01e00000>; + reg = <0x00 0x9c800000 0x00 0x100000>; + no-map; + }; + + wkup_r5fss0_core0_memory_region: r5f-memory@9c900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9c900000 0x00 0xf00000>; + no-map; + }; + + secure_tfa_ddr: tfa@9e780000 { + reg = <0x00 0x9e780000 0x00 0x80000>; + no-map; + }; + + secure_ddr: optee@9e800000 { + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */ no-map; }; }; @@ -688,6 +706,26 @@ }; }; +&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>; +}; + +&mcu_r5fss0 { + status = "okay"; +}; + +&mcu_r5fss0_core0 { + mboxes = <&mailbox0_cluster1 &mbox_mcu_r5_0>; + memory-region = <&mcu_r5fss0_core0_dma_memory_region>, + <&mcu_r5fss0_core0_memory_region>; +}; + &main_uart0 { pinctrl-names = "default"; pinctrl-0 = <&main_uart0_pins_default>; -- 2.50.1