From 1d6161617c10435e970d3bb3ef5de124b94fe719 Mon Sep 17 00:00:00 2001 From: Beleswar Padhi Date: Mon, 8 Sep 2025 19:58:23 +0530 Subject: [PATCH] arm64: dts: ti: k3-am62-ti-ipc-firmware: Refactor IPC cfg into new dtsi The TI K3 AM62 SoCs have multiple programmable remote processors like R5F, M4F etc. The TI SDKs for AM62 SoCs offer sample firmwares which could be run on these cores to demonstrate an "echo" IPC test. Those firmware require certain memory carveouts to be reserved from system memory, timers to be reserved, and certain mailbox configurations for interrupt based messaging. These configurations could be different for a different firmware. While DT is not meant for system configurations, at least refactor these configurations from board level DTS into a dtsi for now. This dtsi for TI IPC firmware is board-independent and can be applied to all boards from the same SoC Family. This gets rid of code duplication and allows more freedom for users developing custom firmware (or no firmware) to utilize system resources better; easily by swapping out this dtsi. To maintain backward compatibility, the dtsi is included in all boards. Signed-off-by: Beleswar Padhi Tested-by: Wadim Egorov # phycore-am62x Reviewed-by: Wadim Egorov Reviewed-by: Dhruva Gole Link: https://patch.msgid.link/20250908142826.1828676-32-b-padhi@ti.com Signed-off-by: Nishanth Menon --- .../boot/dts/ti/k3-am62-phycore-som.dtsi | 44 +--------------- .../boot/dts/ti/k3-am62-pocketbeagle2.dts | 46 +--------------- .../boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi | 52 +++++++++++++++++++ arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi | 46 +--------------- .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 46 +--------------- 5 files changed, 59 insertions(+), 175 deletions(-) create mode 100644 arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi 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 75b7e64f66594..eeca643fedbe9 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-phycore-som.dtsi @@ -52,18 +52,6 @@ no-map; }; - mcu_m4fss_dma_memory_region: memory@9cb00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cb00000 0x00 0x100000>; - no-map; - }; - - mcu_m4fss_memory_region: memory@9cc00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cc00000 0x00 0xe00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9da00000 { compatible = "shared-dma-pool"; reg = <0x00 0x9da00000 0x00 0x100000>; @@ -245,20 +233,6 @@ }; }; -&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 { bootph-all; }; @@ -364,13 +338,6 @@ }; }; -&mcu_m4fss { - mboxes = <&mailbox0_cluster0 &mbox_m4_0>; - memory-region = <&mcu_m4fss_dma_memory_region>, - <&mcu_m4fss_memory_region>; - status = "okay"; -}; - &ospi0 { pinctrl-names = "default"; pinctrl-0 = <&ospi0_pins_default>; @@ -399,13 +366,4 @@ 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>; - status = "okay"; -}; +#include "k3-am62-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts index 621fb6c52db17..7a4cffc27bda3 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts +++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts @@ -54,18 +54,6 @@ linux,cma-default; }; - mcu_m4fss_dma_memory_region: memory@9cb00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cb00000 0x00 0x100000>; - no-map; - }; - - mcu_m4fss_memory_region: memory@9cc00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cc00000 0x00 0xe00000>; - no-map; - }; - secure_tfa_ddr: tfa@9e780000 { reg = <0x00 0x9e780000 0x00 0x80000>; alignment = <0x1000>; @@ -298,20 +286,6 @@ pinctrl-0 = <&epwm2_pins_default>; }; -&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_uart0 { pinctrl-names = "default"; pinctrl-0 = <&main_uart0_pins_default>; @@ -362,24 +336,6 @@ status = "okay"; }; -&mcu_m4fss { - mboxes = <&mailbox0_cluster0 &mbox_m4_0>; - memory-region = <&mcu_m4fss_dma_memory_region>, - <&mcu_m4fss_memory_region>; - 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>; - status = "okay"; -}; - &mcu_pmx0 { wkup_uart0_pins_default: wkup-uart0-default-pins { pinctrl-single,pins = < @@ -543,3 +499,5 @@ }; }; }; + +#include "k3-am62-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi new file mode 100644 index 0000000000000..ea69fab9b52b0 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62-ti-ipc-firmware.dtsi @@ -0,0 +1,52 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * Device Tree Source for enabling IPC using TI SDK firmware on AM62 SoCs + * + * Copyright (C) 2021-2025 Texas Instruments Incorporated - https://www.ti.com/ + */ + +&reserved_memory { + mcu_m4fss_dma_memory_region: memory@9cb00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cb00000 0x00 0x100000>; + no-map; + }; + + mcu_m4fss_memory_region: memory@9cc00000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9cc00000 0x00 0xe00000>; + no-map; + }; +}; + +&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>; + }; +}; + +&mcu_m4fss { + mboxes = <&mailbox0_cluster0 &mbox_m4_0>; + memory-region = <&mcu_m4fss_dma_memory_region>, + <&mcu_m4fss_memory_region>; + 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>; + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 5ecdd833587e1..dc4b228a9fd7e 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -206,18 +206,6 @@ no-map; }; - mcu_m4fss_dma_memory_region: memory@9cb00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cb00000 0x00 0x100000>; - no-map; - }; - - mcu_m4fss_memory_region: memory@9cc00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cc00000 0x00 0xe00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9da00000 { compatible = "shared-dma-pool"; reg = <0x00 0x9da00000 0x00 0x100000>; @@ -1334,38 +1322,6 @@ status = "disabled"; }; -&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>; - }; -}; - -&mcu_m4fss { - mboxes = <&mailbox0_cluster0 &mbox_m4_0>; - memory-region = <&mcu_m4fss_dma_memory_region>, - <&mcu_m4fss_memory_region>; - 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>; - status = "okay"; -}; - /* Verdin CAN_1 */ &main_mcan0 { pinctrl-names = "default"; @@ -1549,3 +1505,5 @@ pinctrl-0 = <&pinctrl_wkup_uart0>; status = "disabled"; }; + +#include "k3-am62-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi index 05cba3cfc79ee..241902fc1cf29 100644 --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi @@ -58,18 +58,6 @@ linux,cma-default; }; - mcu_m4fss_dma_memory_region: memory@9cb00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cb00000 0x00 0x100000>; - no-map; - }; - - mcu_m4fss_memory_region: memory@9cc00000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9cc00000 0x00 0xe00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9da00000 { compatible = "shared-dma-pool"; reg = <0x00 0x9da00000 0x00 0x100000>; @@ -477,38 +465,6 @@ }; }; -&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>; - }; -}; - -&mcu_m4fss { - mboxes = <&mailbox0_cluster0 &mbox_m4_0>; - memory-region = <&mcu_m4fss_dma_memory_region>, - <&mcu_m4fss_memory_region>; - 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>; - status = "okay"; -}; - &usbss0 { bootph-all; status = "okay"; @@ -601,3 +557,5 @@ pinctrl-0 = <&main_epwm1_pins_default>; status = "okay"; }; + +#include "k3-am62-ti-ipc-firmware.dtsi" -- 2.47.3