From: Beleswar Padhi Date: Mon, 8 Sep 2025 14:28:24 +0000 (+0530) Subject: arm64: dts: ti: k3-am62a-ti-ipc-firmware: Refactor IPC cfg into new dtsi X-Git-Tag: v6.18-rc1~147^2~17^2~25 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=d4ab4a33c8e0a8cd33c8cb70ba3c74dba770c2a4;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: ti: k3-am62a-ti-ipc-firmware: Refactor IPC cfg into new dtsi The TI K3 AM62A SoCs have multiple programmable remote processors like R5F, C7x etc. The TI SDKs for AM62A 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: Judith Mendez Reviewed-by: Dhruva Gole Link: https://patch.msgid.link/20250908142826.1828676-33-b-padhi@ti.com Signed-off-by: Nishanth Menon --- diff --git a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi index 0406a43ff7045..b3d012a5a26aa 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62a-phycore-som.dtsi @@ -59,30 +59,6 @@ linux,cma-default; }; - c7x_0_dma_memory_region: memory@99800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99800000 0x00 0x100000>; - no-map; - }; - - c7x_0_memory_region: memory@99900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99900000 0x00 0xf00000>; - no-map; - }; - - mcu_r5fss0_core0_dma_memory_region: memory@9b800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b800000 0x00 0x100000>; - no-map; - }; - - mcu_r5fss0_core0_memory_region: memory@9b900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b900000 0x00 0xf00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { compatible = "shared-dma-pool"; reg = <0x00 0x9c800000 0x00 0x100000>; @@ -209,13 +185,6 @@ }; }; -&c7x_0 { - mboxes = <&mailbox0_cluster1 &mbox_c7x_0>; - memory-region = <&c7x_0_dma_memory_region>, - <&c7x_0_memory_region>; - status = "okay"; -}; - &cpsw3g { pinctrl-names = "default"; pinctrl-0 = <&main_rgmii1_pins_default>; @@ -246,33 +215,6 @@ status = "okay"; }; -&mailbox0_cluster0 { - status = "okay"; - - mbox_r5_0: mbox-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster1 { - status = "okay"; - - mbox_c7x_0: mbox-c7x-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster2 { - status = "okay"; - - mbox_mcu_r5_0: mbox-mcu-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - &main_i2c0 { pinctrl-names = "default"; pinctrl-0 = <&main_i2c0_pins_default>; @@ -388,27 +330,6 @@ bootph-all; }; -/* main_rti4 is used by C7x DSP */ -&main_rti4 { - status = "reserved"; -}; - -/* main_timer2 is used by C7x DSP */ -&main_timer2 { - status = "reserved"; -}; - -&mcu_r5fss0 { - status = "okay"; -}; - -&mcu_r5fss0_core0 { - mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>; - memory-region = <&mcu_r5fss0_core0_dma_memory_region>, - <&mcu_r5fss0_core0_memory_region>; - status = "okay"; -}; - &ospi0 { pinctrl-names = "default"; pinctrl-0 = <&ospi0_pins_default>; @@ -437,13 +358,4 @@ 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-am62a-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi new file mode 100644 index 0000000000000..950f4f37d477a --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62a-ti-ipc-firmware.dtsi @@ -0,0 +1,98 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * Device Tree Source for enabling IPC using TI SDK firmware on AM62A SoCs + * + * Copyright (C) 2022-2025 Texas Instruments Incorporated - https://www.ti.com/ + */ + +&reserved_memory { + c7x_0_dma_memory_region: memory@99800000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x99800000 0x00 0x100000>; + no-map; + }; + + c7x_0_memory_region: memory@99900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x99900000 0x00 0xf00000>; + no-map; + }; + + mcu_r5fss0_core0_dma_memory_region: memory@9b800000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b800000 0x00 0x100000>; + no-map; + }; + + mcu_r5fss0_core0_memory_region: memory@9b900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9b900000 0x00 0xf00000>; + no-map; + }; +}; + +&mailbox0_cluster0 { + status = "okay"; + + mbox_r5_0: mbox-r5-0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; +}; + +&mailbox0_cluster1 { + status = "okay"; + + mbox_c7x_0: mbox-c7x-0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; +}; + +&mailbox0_cluster2 { + status = "okay"; + + mbox_mcu_r5_0: mbox-mcu-r5-0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; +}; + +&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_r5fss0 { + status = "okay"; +}; + +&mcu_r5fss0_core0 { + mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>; + memory-region = <&mcu_r5fss0_core0_dma_memory_region>, + <&mcu_r5fss0_core0_memory_region>; + status = "okay"; +}; + +&c7x_0 { + mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>; + memory-region = <&c7x_0_dma_memory_region>, + <&c7x_0_memory_region>; + status = "okay"; +}; + +/* main_rti4 is used by C7x DSP */ +&main_rti4 { + status = "reserved"; +}; + +/* main_timer2 is used by C7x DSP */ +&main_timer2 { + status = "reserved"; +}; diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts index 312bdab287846..9f148b89e74d8 100644 --- a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -53,30 +53,6 @@ linux,cma-default; }; - c7x_0_dma_memory_region: memory@99800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99800000 0x00 0x100000>; - no-map; - }; - - c7x_0_memory_region: memory@99900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99900000 0x00 0xf00000>; - no-map; - }; - - mcu_r5fss0_core0_dma_memory_region: memory@9b800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b800000 0x00 0x100000>; - no-map; - }; - - mcu_r5fss0_core0_memory_region: memory@9b900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b900000 0x00 0xf00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { compatible = "shared-dma-pool"; reg = <0x00 0x9c800000 0x00 0x100000>; @@ -713,11 +689,6 @@ status = "reserved"; }; -/* main_timer2 is used by C7x DSP */ -&main_timer2 { - status = "reserved"; -}; - &usbss0 { status = "okay"; ti,vbus-divider; @@ -835,67 +806,6 @@ status = "okay"; }; -&mailbox0_cluster0 { - status = "okay"; - - mbox_r5_0: mbox-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster1 { - status = "okay"; - - mbox_c7x_0: mbox-c7x-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster2 { - status = "okay"; - - mbox_mcu_r5_0: mbox-mcu-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&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_r5fss0 { - status = "okay"; -}; - -&mcu_r5fss0_core0 { - mboxes = <&mailbox0_cluster2>, <&mbox_mcu_r5_0>; - memory-region = <&mcu_r5fss0_core0_dma_memory_region>, - <&mcu_r5fss0_core0_memory_region>; - status = "okay"; -}; - -&c7x_0 { - mboxes = <&mailbox0_cluster1>, <&mbox_c7x_0>; - memory-region = <&c7x_0_dma_memory_region>, - <&c7x_0_memory_region>; - status = "okay"; -}; - -/* main_rti4 is used by C7x DSP */ -&main_rti4 { - status = "reserved"; -}; - &fss { status = "okay"; }; @@ -937,3 +847,5 @@ >; }; }; + +#include "k3-am62a-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts index 289f52b3481fa..c958a1c4a6578 100644 --- a/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts +++ b/arch/arm64/boot/dts/ti/k3-am62d2-evm.dts @@ -58,30 +58,6 @@ no-map; }; - c7x_0_dma_memory_region: memory@99800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99800000 0x00 0x100000>; - no-map; - }; - - c7x_0_memory_region: memory@99900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x99900000 0x00 0xf00000>; - no-map; - }; - - mcu_r5fss0_core0_dma_memory_region: memory@9b800000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b800000 0x00 0x100000>; - no-map; - }; - - mcu_r5fss0_core0_memory_region: memory@9b900000 { - compatible = "shared-dma-pool"; - reg = <0x00 0x9b900000 0x00 0xf00000>; - no-map; - }; - wkup_r5fss0_core0_dma_memory_region: memory@9c800000 { compatible = "shared-dma-pool"; reg = <0x00 0x9c800000 0x00 0x100000>; @@ -551,66 +527,16 @@ }; }; -&mailbox0_cluster0 { - status = "okay"; - - mbox_r5_0: mbox-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster1 { - status = "okay"; - - mbox_c7x_0: mbox-c7x-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&mailbox0_cluster2 { - status = "okay"; - - mbox_mcu_r5_0: mbox-mcu-r5-0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; -}; - -&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"; bootph-pre-ram; }; -&mcu_r5fss0 { - status = "okay"; -}; - &mcu_r5fss0_core0 { - mboxes = <&mailbox0_cluster2 &mbox_mcu_r5_0>; - memory-region = <&mcu_r5fss0_core0_dma_memory_region>, - <&mcu_r5fss0_core0_memory_region>; firmware-name = "am62d-mcu-r5f0_0-fw"; - status = "okay"; }; &c7x_0 { - mboxes = <&mailbox0_cluster1 &mbox_c7x_0>; - memory-region = <&c7x_0_dma_memory_region>, - <&c7x_0_memory_region>; firmware-name = "am62d-c71_0-fw"; - status = "okay"; }; -/* main_rti4 is used by C7x DSP */ -&main_rti4 { - status = "reserved"; -}; +#include "k3-am62a-ti-ipc-firmware.dtsi"