From mboxrd@z Thu Jan 1 00:00:00 1970 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 C3108C04E69 for ; Tue, 8 Aug 2023 17:19:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234214AbjHHRTx (ORCPT ); Tue, 8 Aug 2023 13:19:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56060 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234196AbjHHRTW (ORCPT ); Tue, 8 Aug 2023 13:19:22 -0400 Received: from lelv0143.ext.ti.com (lelv0143.ext.ti.com [198.47.23.248]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id BDF391E310; Tue, 8 Aug 2023 09:07:49 -0700 (PDT) Received: from lelv0265.itg.ti.com ([10.180.67.224]) by lelv0143.ext.ti.com (8.15.2/8.15.2) with ESMTP id 378C7mkK006666; Tue, 8 Aug 2023 07:07:48 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1691496468; bh=mTrgJHTKlbCPA9bSNBGepGmQ7pNiH5KTgWDq1iuqoEU=; h=Date:From:To:CC:Subject:References:In-Reply-To; b=yhiiPJgk+N3G402Uevmgp/EmJc4g08M1bU7MLksoNn29VARTr2mG7du2c31Iw2PVy g60wSJA/6pzj2VnZ50AakgV11TnwtA9KzPWkpHQmqfMOLLVkvAEkBGzAB/278pmIeN rhs6ekRH1thPTqM9O7B/BYVjxYrKCaq4GnkC0gBQ= Received: from DLEE104.ent.ti.com (dlee104.ent.ti.com [157.170.170.34]) by lelv0265.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 378C7mZh001544 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 8 Aug 2023 07:07:48 -0500 Received: from DLEE115.ent.ti.com (157.170.170.26) by DLEE104.ent.ti.com (157.170.170.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2507.23; Tue, 8 Aug 2023 07:07:48 -0500 Received: from fllv0039.itg.ti.com (10.64.41.19) by DLEE115.ent.ti.com (157.170.170.26) 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; Tue, 8 Aug 2023 07:07:48 -0500 Received: from localhost (ileaxei01-snat.itg.ti.com [10.180.69.5]) by fllv0039.itg.ti.com (8.15.2/8.15.2) with ESMTP id 378C7mvp111857; Tue, 8 Aug 2023 07:07:48 -0500 Date: Tue, 8 Aug 2023 07:07:48 -0500 From: Nishanth Menon To: Hari Nagalla CC: , , , , , , , , , , , , Subject: Re: [PATCH v5 2/5] arm64: dts: ti: k3-am62 : Add M4F remote proc node Message-ID: <20230808120748.se3fdsja5ow5hqnc@trustless> References: <20230808044529.25925-1-hnagalla@ti.com> <20230808044529.25925-3-hnagalla@ti.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20230808044529.25925-3-hnagalla@ti.com> X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 23:45-20230807, Hari Nagalla wrote: > The AM62x SoCs of the TI K3 family have a Cortex M4F core in the MCU > domain. This core can be used by non safety applications as a remote > processor. When used as a remote processor with virtio/rpmessage IPC, > two carveout reserved memory nodes are needed. The first region is used > as a 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 rproc device. The M4F processor do not have an MMU, and as such > require the exact memory used by the firmware to be set-aside. > > Signed-off-by: Hari Nagalla > --- > Changes in v5: > - Add the M4F device tree node patches to the patch list This will need to be reviewed after driver changes are complete and should go through the SoC tree. > > arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi | 12 ++++++++++++ > .../arm64/boot/dts/ti/k3-am62x-sk-common.dtsi | 19 +++++++++++++++++++ > 2 files changed, 31 insertions(+) > > diff --git a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > index 80a3e1db26a9..4b55df1da751 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62-mcu.dtsi > @@ -171,4 +171,16 @@ mcu_mcan1: can@4e18000 { > bosch,mram-cfg = <0x0 128 64 64 64 64 32 32>; > status = "disabled"; > }; > + > + mcu_m4fss: m4fss@5000000 { > + compatible = "ti,am64-m4fss"; > + reg = <0x00 0x5000000 0x00 0x30000>, > + <0x00 0x5040000 0x00 0x10000>; > + reg-names = "iram", "dram"; > + ti,sci = <&dmsc>; > + ti,sci-dev-id = <9>; > + ti,sci-proc-ids = <0x18 0xff>; > + resets = <&k3_reset 9 1>; > + firmware-name = "am62-mcu-m4f0_0-fw"; > + }; > }; > 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 34c8ffc553ec..ffca61fcf9ba 100644 > --- a/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi > +++ b/arch/arm64/boot/dts/ti/k3-am62x-sk-common.dtsi > @@ -47,6 +47,18 @@ ramoops@9ca00000 { > pmsg-size = <0x8000>; > }; > > + mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 { > + compatible = "shared-dma-pool"; > + reg = <0x00 0x9cb00000 0x00 0x100000>; > + no-map; > + }; > + > + mcu_m4fss_memory_region: m4f-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>; > @@ -362,6 +374,13 @@ mbox_m4_0: mbox-m4-0 { > }; > }; > > +&mcu_m4fss { > + mboxes = <&mailbox0_cluster0>, <&mbox_m4_0>; > + memory-region = <&mcu_m4fss_dma_memory_region>, > + <&mcu_m4fss_memory_region>; > + sram = <&oc_sram>; > +}; > + > &usbss0 { > status = "okay"; > ti,vbus-divider; > -- > 2.34.1 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D