From: Beleswar Padhi Date: Mon, 8 Sep 2025 14:28:16 +0000 (+0530) Subject: arm64: dts: ti: k3-j7200-ti-ipc-firmware: Refactor IPC cfg into new dtsi X-Git-Tag: v6.18-rc1~147^2~17^2~33 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=c5b645dbecd6d0b2689fa44eeefe2a2648172dc7;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: ti: k3-j7200-ti-ipc-firmware: Refactor IPC cfg into new dtsi The TI K3 J7200 SoCs have multiple programmable remote processors like R5Fs. The TI SDKs for J7200 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 Link: https://patch.msgid.link/20250908142826.1828676-25-b-padhi@ti.com Signed-off-by: Nishanth Menon --- diff --git a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi index c689e417cf458..5a8c2e707fde9 100644 --- a/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi +++ b/arch/arm64/boot/dts/ti/k3-j7200-som-p0.dtsi @@ -40,48 +40,6 @@ reg = <0x00 0xa0100000 0x00 0xf00000>; no-map; }; - - mcu_r5fss0_core1_dma_memory_region: memory@a1000000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa1000000 0x00 0x100000>; - no-map; - }; - - mcu_r5fss0_core1_memory_region: memory@a1100000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa1100000 0x00 0xf00000>; - no-map; - }; - - main_r5fss0_core0_dma_memory_region: memory@a2000000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa2000000 0x00 0x100000>; - no-map; - }; - - main_r5fss0_core0_memory_region: memory@a2100000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa2100000 0x00 0xf00000>; - no-map; - }; - - main_r5fss0_core1_dma_memory_region: memory@a3000000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa3000000 0x00 0x100000>; - no-map; - }; - - main_r5fss0_core1_memory_region: memory@a3100000 { - compatible = "shared-dma-pool"; - reg = <0x00 0xa3100000 0x00 0xf00000>; - no-map; - }; - - rtos_ipc_memory_region: memory@a4000000 { - reg = <0x00 0xa4000000 0x00 0x00800000>; - alignment = <0x1000>; - no-map; - }; }; mux0: mux-controller-0 { @@ -224,86 +182,6 @@ }; }; -&mailbox0_cluster0 { - status = "okay"; - interrupts = <436>; - - mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; - - mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 { - ti,mbox-rx = <2 0 0>; - ti,mbox-tx = <3 0 0>; - }; -}; - -&mailbox0_cluster1 { - status = "okay"; - interrupts = <432>; - - mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 { - ti,mbox-rx = <0 0 0>; - ti,mbox-tx = <1 0 0>; - }; - - mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 { - ti,mbox-rx = <2 0 0>; - ti,mbox-tx = <3 0 0>; - }; -}; - -&mcu_r5fss0 { - status = "okay"; -}; - -&mcu_r5fss0_core0 { - mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>; - memory-region = <&mcu_r5fss0_core0_dma_memory_region>, - <&mcu_r5fss0_core0_memory_region>; - status = "okay"; -}; - -&mcu_r5fss0_core1 { - mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>; - memory-region = <&mcu_r5fss0_core1_dma_memory_region>, - <&mcu_r5fss0_core1_memory_region>; - status = "okay"; -}; - -&main_r5fss0 { - ti,cluster-mode = <0>; - status = "okay"; -}; - -/* Timers are used by Remoteproc firmware */ -&main_timer0 { - status = "reserved"; -}; - -&main_timer1 { - status = "reserved"; -}; - -&main_timer2 { - status = "reserved"; -}; - -&main_r5fss0_core0 { - mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>; - memory-region = <&main_r5fss0_core0_dma_memory_region>, - <&main_r5fss0_core0_memory_region>; - status = "okay"; -}; - -&main_r5fss0_core1 { - mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>; - memory-region = <&main_r5fss0_core1_dma_memory_region>, - <&main_r5fss0_core1_memory_region>; - status = "okay"; -}; - &main_i2c0 { pinctrl-names = "default"; pinctrl-0 = <&main_i2c0_pins_default>; @@ -546,3 +424,5 @@ pinctrl-names = "default"; phys = <&transceiver0>; }; + +#include "k3-j7200-ti-ipc-firmware.dtsi" diff --git a/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi b/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi new file mode 100644 index 0000000000000..9477f1efbbc61 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-j7200-ti-ipc-firmware.dtsi @@ -0,0 +1,130 @@ +// SPDX-License-Identifier: GPL-2.0-only OR MIT +/** + * Device Tree Source for enabling IPC using TI SDK firmware on J7200 SoCs + * + * Copyright (C) 2020-2025 Texas Instruments Incorporated - https://www.ti.com/ + */ + +&reserved_memory { + mcu_r5fss0_core1_dma_memory_region: memory@a1000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa1000000 0x00 0x100000>; + no-map; + }; + + mcu_r5fss0_core1_memory_region: memory@a1100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa1100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss0_core0_dma_memory_region: memory@a2000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa2000000 0x00 0x100000>; + no-map; + }; + + main_r5fss0_core0_memory_region: memory@a2100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa2100000 0x00 0xf00000>; + no-map; + }; + + main_r5fss0_core1_dma_memory_region: memory@a3000000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa3000000 0x00 0x100000>; + no-map; + }; + + main_r5fss0_core1_memory_region: memory@a3100000 { + compatible = "shared-dma-pool"; + reg = <0x00 0xa3100000 0x00 0xf00000>; + no-map; + }; + + rtos_ipc_memory_region: memory@a4000000 { + reg = <0x00 0xa4000000 0x00 0x00800000>; + alignment = <0x1000>; + no-map; + }; +}; + +&mailbox0_cluster0 { + status = "okay"; + interrupts = <436>; + + mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; + + mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 { + ti,mbox-rx = <2 0 0>; + ti,mbox-tx = <3 0 0>; + }; +}; + +&mailbox0_cluster1 { + status = "okay"; + interrupts = <432>; + + mbox_main_r5fss0_core0: mbox-main-r5fss0-core0 { + ti,mbox-rx = <0 0 0>; + ti,mbox-tx = <1 0 0>; + }; + + mbox_main_r5fss0_core1: mbox-main-r5fss0-core1 { + ti,mbox-rx = <2 0 0>; + ti,mbox-tx = <3 0 0>; + }; +}; + +/* Timers are used by Remoteproc firmware */ +&main_timer0 { + status = "reserved"; +}; + +&main_timer1 { + status = "reserved"; +}; + +&main_timer2 { + status = "reserved"; +}; + +&mcu_r5fss0 { + status = "okay"; +}; + +&mcu_r5fss0_core0 { + mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core0>; + memory-region = <&mcu_r5fss0_core0_dma_memory_region>, + <&mcu_r5fss0_core0_memory_region>; + status = "okay"; +}; + +&mcu_r5fss0_core1 { + mboxes = <&mailbox0_cluster0 &mbox_mcu_r5fss0_core1>; + memory-region = <&mcu_r5fss0_core1_dma_memory_region>, + <&mcu_r5fss0_core1_memory_region>; + status = "okay"; +}; + +&main_r5fss0 { + ti,cluster-mode = <0>; + status = "okay"; +}; + +&main_r5fss0_core0 { + mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core0>; + memory-region = <&main_r5fss0_core0_dma_memory_region>, + <&main_r5fss0_core0_memory_region>; + status = "okay"; +}; + +&main_r5fss0_core1 { + mboxes = <&mailbox0_cluster1 &mbox_main_r5fss0_core1>; + memory-region = <&main_r5fss0_core1_dma_memory_region>, + <&main_r5fss0_core1_memory_region>; + status = "okay"; +};