From: Beleswar Padhi Date: Mon, 8 Sep 2025 14:28:08 +0000 (+0530) Subject: arm64: dts: ti: k3-am62-verdin: Add missing cfg for TI IPC Firmware X-Git-Tag: v6.18-rc1~147^2~17^2~41 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a49f991e740f5f3917b4023705568aeb817ee773;p=thirdparty%2Fkernel%2Flinux.git arm64: dts: ti: k3-am62-verdin: Add missing cfg for TI IPC Firmware The wkup_r5fss0_core0_memory_region is used to store the text/data sections of the Device Manager (DM) firmware itself and is necessary for platform boot. Whereas the wkup_r5fss0_core0_dma_memory_region is used for allocating the Virtio buffers needed for IPC with the DM core which could be optional. The labels were incorrectly used in the k3-am62-verdin.dtsi file. Correct the firmware memory region label. Currently, only mailbox node is enabled with FIFO assignment for a single M4F remote core. However, there are no users of the enabled mailboxes. Add the missing carveouts for WKUP R5F and MCU M4F remote processors, and enable those by associating to the above carveout and mailboxes. This config aligns with other AM62 boards and can be refactored out later. Signed-off-by: Beleswar Padhi Tested-by: Hiago De Franco # Verdin AM62 Acked-by: Francesco Dolcini Link: https://patch.msgid.link/20250908142826.1828676-17-b-padhi@ti.com Signed-off-by: Nishanth Menon --- diff --git a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi index 9384c9a0232af..5ecdd833587e1 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-verdin.dtsi @@ -206,7 +206,25 @@ no-map; }; - wkup_r5fss0_core0_dma_memory_region: memory@9db00000 { + 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>; + no-map; + }; + + wkup_r5fss0_core0_memory_region: memory@9db00000 { compatible = "shared-dma-pool"; reg = <0x00 0x9db00000 0x00 0xc00000>; no-map; @@ -1323,6 +1341,29 @@ 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 */