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 274A93D5256; Mon, 4 May 2026 13:07:10 +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=1777900030; cv=none; b=O6HNSDIoKPsR67dL/ynRH6LJNx1J9Aroru0qg+rs5Q6n/VWwtDLcssdop7RyB3eFTJ4gzJFymABE9AGfMmPYdX4A+lta6fqGE6vxxspZxyO+FlDx9EKbHacQzkQlsjcpXmCmZE70Ocb+a38I5Ury+c/ENVsiKo0MSwHLgSczD+Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1777900030; c=relaxed/simple; bh=Vjf/+W6X2o66/p4JzdVpEIdyl1g7SDuTTeHJJ8c4c3c=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=O5wzVCcSWC2Y6ekwTycQ1h+UUFr3YfiL2l23w5jtjEVbku0eFm2oNDGYe+jOhR2gAZXsEGpVnSeeVPSvnTVHkuPTrfSUJufWPnioTeCagHJ+P/lTDLPJBbRNkhi6orFS8EI27zx7ys8VMGMN3GskHmpMsjQaHrsMLEb9DlM5hfE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=T0SC1TRo; 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="T0SC1TRo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 46BB8C2BCB9; Mon, 4 May 2026 13:06:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1777900029; bh=Vjf/+W6X2o66/p4JzdVpEIdyl1g7SDuTTeHJJ8c4c3c=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=T0SC1TRoY+HMkjaYn+yAEmR27Df0qKKGmfQqRyTuVU5BD9gTgaE0kIlmPl/Q0Mj7p E3j3SMUmEXbYdn8127o/Y2XevqybPRQ+33Txxc+VvdJ50G6sswrcSPWB+tQGa1Nxt9 GkYw5eYjB7pMTnMH+DOvcmdgnLeSsoZQJAnjt3lQ+Hj71C424s7UX8+Lxfaypp3kU1 rYLoz7wbw6WMwdryuSGNmllNRMA4u2YM5kOpcgNYwTpFoBsL7uJfzP3Ud0YGaBi/2r fULviibhdZ5vxgACr3ffK6TUU2bcKLG70N7NnnlwnJ2B4OelhHvbGKIBf6lJUnscL/ iHWH7uR53L+ug== From: Sumit Garg To: andersson@kernel.org, konradybcio@kernel.org Cc: 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, 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 v5 01/16] arm64: dts: qcom: kodiak: Add EL2 overlay Date: Mon, 4 May 2026 18:35:48 +0530 Message-ID: <20260504130603.1474043-2-sumit.garg@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260504130603.1474043-1-sumit.garg@kernel.org> References: <20260504130603.1474043-1-sumit.garg@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@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 4ba8e7306419..28123cdc9de2 100644 --- a/arch/arm64/boot/dts/qcom/Makefile +++ b/arch/arm64/boot/dts/qcom/Makefile @@ -170,6 +170,8 @@ qcs615-ride-el2-dtbs := qcs615-ride.dtb talos-el2.dtbo dtb-$(CONFIG_ARCH_QCOM) += qcs615-ride-el2.dtb dtb-$(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