From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (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 BA8FD25DAFF for ; Wed, 25 Jun 2025 12:15:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750853703; cv=none; b=TXk4cpEFlBaBX2x7Eq45YJnlzhP2J5xizDX2hJv9xAgSOG2n8Flgw1kh8s4mjImBDcsxt5bL/YwdWhiZMYOHOMFgTEkMOroXls4DpwN994sr+ZlwoWNgc157NpyNAyRTkdMPOd7Yq5BPJombCsKIskt+k95OeRuL3pVp1gPc3dA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750853703; c=relaxed/simple; bh=BstwL6Lomg7h/FYZhuoW1Yju3H4iRMB3OKjgatbUJ3Y=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=AaQiH7AuxiivGksvO4O+2PDWyCNuB9iOMusFDWNB1hlj9HONez2+i2+YF07ytrPz4cQJVDCVSCv3I/fmFgJLmAKR9EWGuz7CdKF1KU3e34wWEr4TF0ow8GiYGVCBI+YAxlYKSmZFn5Hnta98RTUdv1yiFvqUorccXhu1Gi52c+0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=EtQcZSTz; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="EtQcZSTz" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 55P9Gmiw031883 for ; Wed, 25 Jun 2025 12:15:01 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= S1gfzAeFtKqZIDDDtaPRRz5e9GMjTtPvXyVmnuqxQGU=; b=EtQcZSTztSRJXn5a laHE6wOQWmi7B1EmsIVw/UsX1VQu0Doumpv20ZAQMBQiinVyY3OS3Lcknyyvm2SE uutWc5ASA7rrp3KqhUUseYazm62o/692VUdCwDFlcQYvc+Ej8rXq9S/G/UgWZPlw 0XruIvrTb7JCc9kq5HS7yotXAzgEGLJvGrn0J7Kqm3PXFjx8fRMgQDA8RC4HqG/0 0rMwehEvC7dYuoCc+S8vTIpyRjnEQfExGLbhechktPPA39ayfL/E04t9Br+dyE5/ 2wDur+P0Qm9lhcpgO+xyHK2IxaKtzf4GaGFUYBCQM50q7hC9gtFjYAxgDbKtS0w7 qlHeRA== Received: from mail-qk1-f198.google.com (mail-qk1-f198.google.com [209.85.222.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 47f4b3ymux-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT) for ; Wed, 25 Jun 2025 12:15:00 +0000 (GMT) Received: by mail-qk1-f198.google.com with SMTP id af79cd13be357-7d3eeb07a05so89138885a.2 for ; Wed, 25 Jun 2025 05:15:00 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1750853699; x=1751458499; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=S1gfzAeFtKqZIDDDtaPRRz5e9GMjTtPvXyVmnuqxQGU=; b=I2x3HkZLR6s8wEggk1pJP/O79WANbZQ5KiJQ4MucL2ule49lfGuzTxWg/xeLndXob5 JxAKQIo6h9VBviPV/9bV/J8iz8rj5fRM219Tapp8KhDzJlLwkTq733CMwWaNMFdTf4pq lnrgbfBE7WCvt93uQYreDDwT+WIws+XTGI7SpzMVgdanS+iErNJ8zY0Kzv5WjOQN5Sf6 L2aW1SPLFo22VlnAa4LmhG0/6b8d6lWR2fnbARspGwbDvN80z84utbqkqXOmHfOEPat2 sZCGNz9omQsUPXn5gCLj7T4dTkqN7QmOHhpUk5kTL3oxFzUr12vNkP9fhrqEsBNxpQ+r cOQQ== X-Forwarded-Encrypted: i=1; AJvYcCXIguv1CHpmXGOPadqS6MFVAoB/AOQ4lGNOLqx8DRoFOJB1PtecToAlgLAlhiw7alG0Uj2O5rF4nKcokos=@vger.kernel.org X-Gm-Message-State: AOJu0YzXWvkOsZa4SHehwlJI6u5Hac41oeTMiVrnuT7IWFDRS347i7eb 6O0JjnKRUnPA7cZHjq8Pe/K+AeRKOi6gy3Z4UfzwFtxBlWkjJcsQaytWu3cK89XI6O3j1znBr4u +PdXNUkk7A/QGjCyqlFCb84mGGnQjcUXZN5n7nkZlJyYRDtC2NrM2okqN9rMAK1pLKc8= X-Gm-Gg: ASbGncs6OL0vA2PkbHYSeOGcFi1cX8UMQr+ejkCXcr3hjN72LpiunPdUi8LE9/5o1AE +R7a71drd5DpZv2CuitJIxRQ03fDFXlMawba0XO3xD6gefyWD9hiarI0rvhnlJNGNsBgrYUiPLc rjIPW9iKWhANMqgE0F5KXLdTZwHdEcAQMNSjfdHmt8RkrKlFmul1NzEjSix2yJzzwnWLdS1TYf1 wdN8J2X+Sief0TC5y5o6u0iLE58y99qMsCV9bB1bqdfxmGpxdkVsRCvD+qknxiR0SI8c92+rrAc /SzWmwfxpR9AEvf9miFxI9Ayzlp9p8MJZ3/IzZ4q7asW3WFifX+9Ppi1U10PHO9udZwhtMASrPh 47N0= X-Received: by 2002:a05:620a:1b89:b0:7ce:e99e:bc87 with SMTP id af79cd13be357-7d4297074cfmr131708185a.6.1750853699425; Wed, 25 Jun 2025 05:14:59 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHUZq2S+jTksBRqpXBDAQ+dq49dxghyHxfABwCdBE4cKnYNFStTwAfphTFb+AxDCbzEKcboAQ== X-Received: by 2002:a05:620a:1b89:b0:7ce:e99e:bc87 with SMTP id af79cd13be357-7d4297074cfmr131705985a.6.1750853698953; Wed, 25 Jun 2025 05:14:58 -0700 (PDT) Received: from [192.168.143.225] (078088045245.garwolin.vectranet.pl. [78.88.45.245]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-ae0ae978180sm262145166b.46.2025.06.25.05.14.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 25 Jun 2025 05:14:58 -0700 (PDT) Message-ID: Date: Wed, 25 Jun 2025 14:14:56 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2] arm64: dts: qcom: ipq5424: Describe the 4-wire UART SE To: Kathiravan Thirumoorthy , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Mukesh Kumar Savaliya , Viken Dadhaniya Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org References: <20250624-ipq5424_hsuart-v2-1-6566dabfe4a6@oss.qualcomm.com> <3514a3af-ab7d-41e6-9e59-95defe9105b4@oss.qualcomm.com> Content-Language: en-US From: Konrad Dybcio In-Reply-To: <3514a3af-ab7d-41e6-9e59-95defe9105b4@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUwNjI1MDA5MCBTYWx0ZWRfX98/rkzKyEArM 4u/EL+kY8mEkITclS1S+729v82ye5bDs0jMBbXLaZoi6zGvSK7a6A0kGjbrTQ0+FMdJESMumUHb gGXEsPQrJV1HD5fuFewvii7CIiRr+zXEGRvWlQYEouX1t1LGc2UIEReT/H/wNpD9ln8ovy+mK+L bwE5wjZBTGaoVfEGTcS8ogUHQsD4t+ti6ak+igQTdMkoUokl6tkSGBOPXuUAYjDRM6NjEePielA fgz6Cwx9kL3LhMhZCfz9zlRHQl9jKCT5xgw1OaTy0DDI21ZWaGkiZuXZiimZwi+DnSFZIbTlCO4 GnFGq2QcJBtUX+3h8UXI3HdsAv2f5VbE9s/fdvFscFfTu10TfFHuuvr8GQukBXBBIbpbTv2crGt zAJbvUGYgO6p6+7HcFOFgnQSa6k0gGdrw9q0F35QqD/LZ8GjePbC+5APKcA014l5Fzpc0+jK X-Proofpoint-ORIG-GUID: jMS-Q-STmyzfGNh3dgvt3s26mb_eRobC X-Proofpoint-GUID: jMS-Q-STmyzfGNh3dgvt3s26mb_eRobC X-Authority-Analysis: v=2.4 cv=A8BsP7WG c=1 sm=1 tr=0 ts=685be844 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=FpWmc02/iXfjRdCD7H54yg==:17 a=IkcTkHD0fZMA:10 a=6IFa9wvqVegA:10 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=hHLQ3m-ZY_siiFXIcXAA:9 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1099,Hydra:6.1.7,FMLib:17.12.80.40 definitions=2025-06-25_03,2025-06-25_01,2025-03-28_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 mlxlogscore=688 malwarescore=0 spamscore=0 bulkscore=0 phishscore=0 adultscore=0 impostorscore=0 suspectscore=0 mlxscore=0 clxscore=1015 priorityscore=1501 classifier=spam authscore=0 authtc=n/a authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.19.0-2505280000 definitions=main-2506250090 On 6/25/25 7:55 AM, Kathiravan Thirumoorthy wrote: > > On 6/24/2025 8:08 PM, Konrad Dybcio wrote: >> On 6/24/25 11:00 AM, Kathiravan Thirumoorthy wrote: >>> QUPv3 in IPQ5424 consists of six Serial Engines (SEs). Describe the >>> first SE, which supports a 4-wire UART configuration suitable for >>> applications such as HS-UART. >>> >>> Note that the required initialization for this SE is not handled by the >>> bootloader. Therefore, add the SE node in the device tree but keep it >>> disabled. Enable it once Linux gains support for configuring the SE, >>> allowing to use in relevant RDPs. >> Do you mean fw loading support? > > SE0 is minicore, so we don't need to load the FW. But apart from FW , protocol specific configurations to be done in the SE's Image Configuration registers, which is taken care in the patch[1] > > [1] [PATCH v5 0/5] Add support to load QUP SE firmware from I've heard the 'minicore' or similar name before.. how does it differ from a "normal" SE? (+Mukesh & Viken) Konrad