From nobody Fri Dec 19 11:30:56 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EADA3EB8FAF for ; Wed, 6 Sep 2023 11:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239631AbjIFLZN (ORCPT ); Wed, 6 Sep 2023 07:25:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42388 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239548AbjIFLZJ (ORCPT ); Wed, 6 Sep 2023 07:25:09 -0400 Received: from fllv0016.ext.ti.com (fllv0016.ext.ti.com [198.47.19.142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 738C3173D; Wed, 6 Sep 2023 04:24:57 -0700 (PDT) Received: from fllv0035.itg.ti.com ([10.64.41.0]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 386BOq7n108179; Wed, 6 Sep 2023 06:24:52 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1693999492; bh=hFEbiIrjN3eKDCVYYMmc3g8mHaL8TO2DTZfQmocFoZE=; h=From:To:Subject:Date:In-Reply-To:References; b=b/3qFixc3ofjTaP7YpnqVJcNRiBJW1q1Khd0jfYXEqPgC3HmgB8lcEgouPKq4JDvI IwojFgwM+I9VzZw2CXeND0AcKmTvOsu1QcZSdkKEI+UbogfXv+CHMq6DaiEBY8y5+/ eCeng+Cl4uXlFbqGHdCF5ndwREF7z376f4OFLOFE= Received: from DLEE111.ent.ti.com (dlee111.ent.ti.com [157.170.170.22]) by fllv0035.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 386BOqaU108365 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 6 Sep 2023 06:24:52 -0500 Received: from DLEE106.ent.ti.com (157.170.170.36) by DLEE111.ent.ti.com (157.170.170.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Wed, 6 Sep 2023 06:24:51 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE106.ent.ti.com (157.170.170.36) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23 via Frontend Transport; Wed, 6 Sep 2023 06:24:52 -0500 Received: from TI.dhcp.ti.com (ileaxei01-snat.itg.ti.com [10.180.69.5]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 386BON7w099810; Wed, 6 Sep 2023 06:24:48 -0500 From: Apurva Nandan To: Apurva Nandan , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , , , , Hari Nagalla , Udit Kumar Subject: [PATCH v4 7/9] arm64: dts : ti: k3-am68-sk-som: Add DDR carveout memory nodes for C71x DSP Date: Wed, 6 Sep 2023 16:54:20 +0530 Message-ID: <20230906112422.2846151-8-a-nandan@ti.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230906112422.2846151-1-a-nandan@ti.com> References: <20230906112422.2846151-1-a-nandan@ti.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Two carveout reserved memory nodes each have been added for each of the C71x DSP for the TI K3 AM68 SK boards. These nodes are assigned to the respective rproc device nodes as well. The first region will be used as the DMA pool for the rproc device, and the second region will furnish the static carveout regions for the firmware memory. The current carveout addresses and sizes are defined statically for each device. The C71x DSP processor supports a MMU called CMMU, but is not currently supported and as such requires the exact memory used by the firmware to be set-aside. Signed-off-by: Sinthu Raja Signed-off-by: Apurva Nandan --- arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi | 52 ++++++++++++++++++++++ 1 file changed, 52 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi b/arch/arm64/boot/d= ts/ti/k3-am68-sk-som.dtsi index beab405274ab..20861a0a46b0 100644 --- a/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am68-sk-som.dtsi @@ -98,6 +98,30 @@ main_r5fss1_core1_memory_region: r5f-memory@a5100000 { no-map; }; =20 + c71_0_dma_memory_region: c71-dma-memory@a6000000 { + compatible =3D "shared-dma-pool"; + reg =3D <0x00 0xa6000000 0x00 0x100000>; + no-map; + }; + + c71_0_memory_region: c71-memory@a6100000 { + compatible =3D "shared-dma-pool"; + reg =3D <0x00 0xa6100000 0x00 0xf00000>; + no-map; + }; + + c71_1_dma_memory_region: c71-dma-memory@a7000000 { + compatible =3D "shared-dma-pool"; + reg =3D <0x00 0xa7000000 0x00 0x100000>; + no-map; + }; + + c71_1_memory_region: c71-memory@a7100000 { + compatible =3D "shared-dma-pool"; + reg =3D <0x00 0xa7100000 0x00 0xf00000>; + no-map; + }; + rtos_ipc_memory_region: ipc-memories@a8000000 { reg =3D <0x00 0xa8000000 0x00 0x01c00000>; alignment =3D <0x1000>; @@ -170,6 +194,20 @@ mbox_main_r5fss1_core1: mbox-main-r5fss1-core1 { }; }; =20 +&mailbox0_cluster4 { + status =3D "okay"; + interrupts =3D <420>; + mbox_c71_0: mbox-c71-0 { + ti,mbox-rx =3D <0 0 0>; + ti,mbox-tx =3D <1 0 0>; + }; + + mbox_c71_1: mbox-c71-1 { + ti,mbox-rx =3D <2 0 0>; + ti,mbox-tx =3D <3 0 0>; + }; +}; + &mcu_r5fss0_core0 { mboxes =3D <&mailbox0_cluster0>, <&mbox_mcu_r5fss0_core0>; memory-region =3D <&mcu_r5fss0_core0_dma_memory_region>, @@ -205,3 +243,17 @@ &main_r5fss1_core1 { memory-region =3D <&main_r5fss1_core1_dma_memory_region>, <&main_r5fss1_core1_memory_region>; }; + +&c71_0 { + status =3D "okay"; + mboxes =3D <&mailbox0_cluster4>, <&mbox_c71_0>; + memory-region =3D <&c71_0_dma_memory_region>, + <&c71_0_memory_region>; +}; + +&c71_1 { + status =3D "okay"; + mboxes =3D <&mailbox0_cluster4>, <&mbox_c71_1>; + memory-region =3D <&c71_1_dma_memory_region>, + <&c71_1_memory_region>; +}; --=20 2.34.1