From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02A3E358375; Thu, 12 Mar 2026 06:28:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773296916; cv=none; b=tsttCHWh3NYo1kW03S9yXQnSUAJ/18Jf/Zwn4nQkrUqFBTf/cUDnyufE5Qo8NcRgux9PFGAEUjUTyuoOKog7BPe5TEz/Ar4YwdSh5tORGv6/KtAQka5iSXxwQOz+zWeH1CFYQBRqJUPBeW5tmfpnC+74msIQdgrBrTj42xm1FpQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773296916; c=relaxed/simple; bh=VulyuWgkoLsxmBOeLgDF0beLPvgQfeLav/LDt2v0t0Q=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pzbsXPpJfBymQrgLDNvuCtnzkhjl/45pSVId0mUMABC2AejeK3GWTkBuEc1ukJ8jPmhcqqHk0yyGSKboTdi6sV7ydjCPGbNjztuPhcQQDOpQ4BRbsiJjX5AXQizanQGIb14eaV9hlqQDERfL7LwXRugFNpLrqpoV4cVpVc2Yvo0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=FZaCBrDU; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="FZaCBrDU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3E3F4C4CEF7; Thu, 12 Mar 2026 06:28:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1773296915; bh=VulyuWgkoLsxmBOeLgDF0beLPvgQfeLav/LDt2v0t0Q=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FZaCBrDUioAwyME7r48tn+qHn7INOC7j3WbKdoI3EDLxsowXzlMTILTJpx4kFfj3B ulkHMQGITHraGXQU4j+Z0MmnAoG8JizZM7sccdxv7MckAx2WHkdZmLrxFTHdj4H9U7 h3xYBBJUsjUAnEfOuMsbjMkK8uqH4gdGUJmTMx/LbPhzdJNtYTPKsqdP4/EZurfMnG 5vQcPm8/1rG3ef78G52IMBIL4od0RgqfeAhJy0M4lGw6ibQ0Ua/GPSdF/0CXMwdIkl AM6QtGggCKe99MJCqXDhsjjFFWQb8/YVz6D4SatFNB8w2b+ZpaMAg7C6w8cM7oYM7P JtM8TDHT9anPA== From: Sumit Garg To: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-media@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, ath12k@lists.infradead.org, linux-remoteproc@vger.kernel.org Cc: andersson@kernel.org, konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, robin.clark@oss.qualcomm.com, sean@poorly.run, akhilpo@oss.qualcomm.com, lumag@kernel.org, abhinav.kumar@linux.dev, jesszhan0024@gmail.com, marijn.suijten@somainline.org, airlied@gmail.com, simona@ffwll.ch, vikash.garodia@oss.qualcomm.com, dikshita.agarwal@oss.qualcomm.com, bod@kernel.org, mchehab@kernel.org, elder@kernel.org, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jjohnson@kernel.org, mathieu.poirier@linaro.org, trilokkumar.soni@oss.qualcomm.com, mukesh.ojha@oss.qualcomm.com, pavan.kondeti@oss.qualcomm.com, jorge.ramirez@oss.qualcomm.com, tonyh@qti.qualcomm.com, vignesh.viswanathan@oss.qualcomm.com, srinivas.kandagatla@oss.qualcomm.com, amirreza.zarrabi@oss.qualcomm.com, jens.wiklander@linaro.org, op-tee@lists.trustedfirmware.org, apurupa@qti.qualcomm.com, skare@qti.qualcomm.com, linux-kernel@vger.kernel.org, Sumit Garg Subject: [PATCH v2 01/15] arm64: dts: qcom: kodiak: Add EL2 overlay Date: Thu, 12 Mar 2026 11:57:42 +0530 Message-ID: <20260312062756.694390-2-sumit.garg@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260312062756.694390-1-sumit.garg@kernel.org> References: <20260312062756.694390-1-sumit.garg@kernel.org> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Mukesh Ojha All the existing variants Kodiak boards are using Gunyah hypervisor which means that, so far, Linux-based OS could only boot in EL1 on those devices. However, it is possible for us to boot Linux at EL2 on these devices [1]. When running under Gunyah, the remote processor firmware IOMMU streams are controlled by Gunyah. However, without Gunyah, the IOMMU is managed by the consumer of this DeviceTree. Therefore, describe the firmware streams for each remote processor. Add a EL2-specific DT overlay and apply it to Kodiak IOT variant devices to create -el2.dtb for each of them alongside "normal" dtb. [1] https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-4/boot-developer-touchpoints.html#uefi Signed-off-by: Mukesh Ojha [SG: watchdog fixup] Signed-off-by: Sumit Garg --- arch/arm64/boot/dts/qcom/Makefile | 2 ++ arch/arm64/boot/dts/qcom/kodiak-el2.dtso | 35 ++++++++++++++++++++++++ 2 files changed, 37 insertions(+) create mode 100644 arch/arm64/boot/dts/qcom/kodiak-el2.dtso diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile index f80b5d9cf1e8..09a7f943190e 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -139,6 +139,8 @@ dtb-$(CONFIG_ARCH_QCOM) += qcs404-evb-4000.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs615-ride.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs6490-radxa-dragon-q6a.dtb dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2.dtb +qcs6490-rb3gen2-el2-dtbs := qcs6490-rb3gen2.dtb kodiak-el2.dtbo +dtb-$(CONFIG_ARCH_QCOM) += qcs6490-rb3gen2-el2.dtb qcs6490-rb3gen2-vision-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-vision-mezzanine.dtbo qcs6490-rb3gen2-industrial-mezzanine-dtbs := qcs6490-rb3gen2.dtb qcs6490-rb3gen2-industrial-mezzanine.dtbo diff --git a/arch/arm64/boot/dts/qcom/kodiak-el2.dtso b/arch/arm64/boot/dts/qcom/kodiak-el2.dtso new file mode 100644 index 000000000000..0b3a69a0d765 --- /dev/null +++ b/arch/arm64/boot/dts/qcom/kodiak-el2.dtso @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: BSD-3-Clause +/* + * Copyright (c) Qualcomm Technologies, Inc. and/or its subsidiaries. + * + * Kodiak specific modifications required to boot in EL2. + */ + + +/dts-v1/; +/plugin/; + +&gpu_zap_shader { + status = "disabled"; +}; + +&remoteproc_adsp { + iommus = <&apps_smmu 0x1800 0x0>; +}; + +&remoteproc_cdsp { + iommus = <&apps_smmu 0x11a0 0x0400>; +}; + +&remoteproc_wpss { + iommus = <&apps_smmu 0x1c03 0x1>, + <&apps_smmu 0x1c83 0x1>; +}; + +&venus { + status = "disabled"; +}; + +&watchdog { + status = "okay"; +}; -- 2.51.0