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 A69932F8EBB for ; Tue, 25 Aug 2026 03:40:36 +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=1787629238; cv=none; b=CEqgtf6ESfofDQQLXuQAiXfBGRNFGcOykVwWZlDxrV5ouJ6MCSYg8/SzBEoVsMsOwCNJS0s8hgxBO41Tqi7AuTLBcOO8vKAqwMEoR++VWIU8BG6hEEdU/gQz2pxU/IKmLr3FGloip6Hw+9bH635N7bMEKfE/iaL6zdhhvI2a1yI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787629238; c=relaxed/simple; bh=ikgtOzxSpmJEr2Vr4iz9UntK5xaE/Y36dBEnPiBcCa0=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=uUkspBHQUV6wCQzchOlRSpoIJ5vzyVssNi52W+5oh/2Dxrk4DuUmGRZ9irjzcv9D53ZShgiK4iHLFwly+WnUUFOvX21mSoAzALtc2IyIEQaJNOGEJzRlbA1dY50q6Sbp/9q0IdoOeA+cRKwYjTvfxj34t2/4dD5VFT2sotd16i4= 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=MsKhtae6; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=H1WQ2y7X; 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="MsKhtae6"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="H1WQ2y7X" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67P2R2YS125606 for ; Tue, 25 Aug 2026 03:40:36 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=EdSzuYafGONS0Am+NH3il+ 2M32HWJRjQj8BDLM7qMfw=; b=MsKhtae61WryQuYzE2Agnr8RN2h1adhMWYc35N pndzy8cI9B00hzhzFB4bO1xGdOUWpyaGUfARn8fzKdkbRZDW6u+9pWVifesDbSNc Wr1Ln1c4KYsw7S/ln4zW2u0yack5zMEVMXLTbksuXyxPd5IqLObWpUzgoq5rpLH/ nb3RWaQ18ePSwJ7+KUoPvZxyTnjOAcGFoUJ94zesEFG8jIj3xZ5Gd/k9Ex6j/Vzn 0jvW0T6cAuhqW0xxwB6mN5GnlfE+KcC5KZ7RrzV+rn9OwmqmQ8VZoyN6NaTVPpwu bWHMzVCoRcE8hLI7Qgydo5bZQz43SaN+J+9FJvZgp43+Eabg== Received: from mail-pj1-f70.google.com (mail-pj1-f70.google.com [209.85.216.70]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4g8rqujcf4-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Tue, 25 Aug 2026 03:40:35 +0000 (GMT) Received: by mail-pj1-f70.google.com with SMTP id 98e67ed59e1d1-38e25e4b41cso4926383a91.0 for ; Mon, 24 Aug 2026 20:40:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1787629235; x=1788234035; darn=vger.kernel.org; h=cc:to:content-transfer-encoding:content-type:mime-version :message-id:date:subject:from:from:to:cc:subject:date:message-id :reply-to:content-type; bh=EdSzuYafGONS0Am+NH3il+2M32HWJRjQj8BDLM7qMfw=; b=H1WQ2y7X2zXBn6xvSVdlbhaCL7VfUmIgHX7jxOVXCxi/7IPzHv9rCn8Icd6CFRapot vl3MhfdOCJMTyZKLoLsHeSK9HVbRZ8S8BxgVYMSvaMfs5vNpD3Yx1juO2Vgr9aTOgp6/ RLqFwHGBiFCkd8fBe8Hzkt2v0sMTJ6sY7gZiTq5JTCip3TC7F9XvV9sU/Klp6wz3QVpI GEtYEigCS3y4rQZVlfoL5eXcEPWaY9Rq92bzRdZPQmgEA25puIYQ2ECY5IFYvH5Au8N3 +BG9mYW3PQrwU1ioZFC0xQXFHsO+l2ZHWcGi5fcojjizm1jpWMJdUpmVQKiu4R89Dusl r14w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787629235; x=1788234035; h=cc:to:content-transfer-encoding:content-type:mime-version :message-id:date:subject:from:x-gm-gg:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to:content-type; bh=EdSzuYafGONS0Am+NH3il+2M32HWJRjQj8BDLM7qMfw=; b=FepKnF2OSA+8yFF5gVsXaF/OZ1+sj4xx4OhQPfobXHRa5mlsO7Ue1LDOrOU0108bzk 1RF7UcODPtQ49tspJ1cowCqz8XZq0Se/naE5RiUAb2JIL9elXV9jo6SFp6+fPuW8SKN4 WKwWL2DP6IFzmPC7Q26RDksZUT/94Sai2ry+M9YHxI29fF+YonsrgUpBXIaxp4a7u3XA I783QlTr42vG+Di+hb4R/O2oE5DEP8XeBda2gk5kVkuIBmlQP4h7fmdXYl8g0yEvKqrB /Ko17MZapxizYuYH6RIpZOFjfE1Tu0fa1SGmzSwGYxOe8pqn9GnPgNcsDIWCNXnMuLNP ABYQ== X-Forwarded-Encrypted: i=1; AHgh+RqcKsh7o0glv/fWFhqAPC/gyIdWpxmQ6+QlXza/6Iz/xmIdSfwpDdOcZiw21dHF2JicYdt0A34WEoyg@vger.kernel.org X-Gm-Message-State: AFuF++kHmKacRsiLjK5zaQx/RuppvzcfRgjrJZ2G8p58j5pQuc20lIlY uFtNbVJIIjyP6u0DSufo+LN2HmU4Od8B7LS8ju1QI2+LSe96VXhMcViBEa9ovHGsFMmPjOeiVRa RhsD7b+FBn39ciqzceglC2XN+L/ADj3wLYaEtP4004Cqh7dsxWoughvxJiqZwcvCL X-Gm-Gg: AR+sD12OZjJBnUXSZR4xJGwVL/PJXIoDzzfOpZJvxiRC7E69c2Yzr8jhRDZlIUOwtwr 4vhsBuV554/2kHjfx7csiqrSo1IZDRrMvRqfhA2wQOFIFVS/YhCgP30FP5yCkxsjgum7BIH/oZf w27mXH1v5pLaYPW20VPoRiDtlTtkuGIeYsupkYe2BmpTZkJeTBKynHoiLqr+ftK3BlTJOVLKCE7 hiq4unJa8KpcchSlQ7XZsyAJnHmx+ryo5heo1HDVxFDzkNv7srKh/4O5iYqIlH7w8n3obf382Ig X3HM4feBqUSUGglet0x/nXE8Wc3D8nNNyw8BkSInsEvosmHMhOc80gRWicTBT5xIu94PaLhR+tO 96WgU+8p/TMbgtQp03oJh4NBxbY6g7p/wCso= X-Received: by 2002:a17:90b:224a:b0:385:393e:7124 with SMTP id 98e67ed59e1d1-395df677766mr37994679a91.14.1787629235216; Mon, 24 Aug 2026 20:40:35 -0700 (PDT) X-Received: by 2002:a17:90b:224a:b0:385:393e:7124 with SMTP id 98e67ed59e1d1-395df677766mr37994607a91.14.1787629234742; Mon, 24 Aug 2026 20:40:34 -0700 (PDT) Received: from hu-krichai-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-327f91d36f9sm46440083eec.16.2026.08.24.20.40.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Aug 2026 20:40:34 -0700 (PDT) From: Krishna Chaitanya Chundru Subject: [PATCH 0/4] Add PCIe support for Qualcomm Nord platform Date: Tue, 25 Aug 2026 09:10:21 +0530 Message-Id: <20260825-nord-v1-0-7c02f2b8765a@oss.qualcomm.com> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-B4-Tracking: v=1; b=H4sIAKUOjWoC/y2Nyw6CMBBFf4XM2pI+kIcr/8OwKDBIjbTaAaIh/ XcLuJnkJOeeWYHQGyS4JCt4XAwZZyOIUwLtoO0dmekig+Qy56XgzDrfsSwXJa960Z01QlRfHnv z2TO3+mCamwe207bdjMHQ5Px3/7OIzfsnZXYkF8E4q/KqUUXR8EKpqyNK37N+tm4c03igDiH8A F5hWHSxAAAA X-Change-ID: 20260810-nord-461809f1d5ae To: Vinod Koul , Neil Armstrong , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Manivannan Sadhasivam , Bjorn Helgaas , Bjorn Andersson , Maxime Chevallier , Philipp Zabel Cc: Krishna Chaitanya Chundru , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787629229; l=2871; i=krishna.chundru@oss.qualcomm.com; s=20230907; h=from:subject:message-id; bh=ikgtOzxSpmJEr2Vr4iz9UntK5xaE/Y36dBEnPiBcCa0=; b=avFVHuaMXIAEXZtr/CJr52BQYBvSUlz+tIenooznuEo5NzsevM8LKP0sDuhG1fR8bCXs2YdNJ aHvip3la/HEDzSm2RrN5VRBXAZDwzLOSGvC6onVRrAH0r/tYmYn6wZH X-Developer-Key: i=krishna.chundru@oss.qualcomm.com; a=ed25519; pk=10CL2pdAKFyzyOHbfSWHCD0X0my7CXxj8gJScmn1FAg= X-Proofpoint-ORIG-GUID: 4g4wlVes1OquxR7FpdKPKkeLDwjl1u_5 X-Proofpoint-Spam-Info: AW1haW4tMjYwODI1MDAyOCBTYWx0ZWRfXys2EDQlHPJAF 6OIr/DoC882evCTf6RgaRjy1sKFfNfh0hOPeu3tUS9c4WUCIRff/MwFWI6f2+eiFWA/yJh90fKw qjx8C11Jrw1tvEzxqeFUv2km8+4zeSM= X-Authority-Analysis: v=2.4 cv=CbQ4Irrl c=1 sm=1 tr=0 ts=6a8d0eb3 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=KKAkSRfTAAAA:8 a=1XWaLZrsAAAA:8 a=P-IC7800AAAA:8 a=JfrnYn6hAAAA:8 a=mkAmWphk72FtIL2ZoEcA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 a=cvBusfyB2V15izCimMoJ:22 a=d3PnA9EDa4IxuAV0gXij:22 a=1CNFftbPRP8L7MoqJWF3:22 X-Proofpoint-GUID: 4g4wlVes1OquxR7FpdKPKkeLDwjl1u_5 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODI1MDAyOCBTYWx0ZWRfX1om+XVxeaqp7 w0/1RNlGc6bRuan/8+FUWuZL7sQDZtWyZZ+pceEW0eWvbRLT0ujWbKAipUzoOeA5LmkKN7pYEuA sjXwt5CHwBD5ESz0i6p17pSFgajQg7Y6/vk7FX72DoyzFYKZycRAi3rvlOcNinEz+nKMWK+8W+9 A/CorUl6lzdm92Wgw0QIj/6/LOl5gVN4OKgpwbPg06VVheACEqU0Ylmff7yPilNNL7ZLfA854nV yUwc2paLN5zwjSqaEcHlikahWJUvSBmPv8V/LsJrJ0UqOF/AMLSey5ieB14faC6IVe6IcMgeVyD uWKgFAlTPUlExWO6Yr2+YKbhDf5PYH1uxDMYVo+x7WNmvzPUVfhvVp3uhbxqrPDczAPSrjbXtB6 l0M3QmyeW4xF5BZMajTRw5FTILDT3RDqtXl6Le4/TkBH7Bl264nvx5Cw7ofPiCNH/WmX93rQil/ OPcRf5yJFaUxPXR05mg== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-25_01,2026-08-24_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 priorityscore=1501 lowpriorityscore=0 phishscore=0 suspectscore=0 impostorscore=0 malwarescore=0 spamscore=0 clxscore=1015 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608250028 This series adds PCIe support for the Qualcomm Nord (SA8797P) platform. Nord has a single Gen5-capable QMP PCIe PHY block split into four independently-clocked and independently-resettable ports (A/B/C/D). Firmware selects the active lane topology at boot via a TCSR configuration register, and the same PHY block can appear as a single x16 port, x8+x8, x8+x4+x4, or x8+x4+x2+x2 depending on that mode. This is similar in spirit to the Glymur multi-PHY support already posted, except Nord's PHY registers are programmed by Linux rather than by firmware, so this series adds the PLL, TXRXZ, PCS and PCS-lane init tables along with the power-up/power-down/soft-reset sequencing needed to bring each port up. The series also documents and wires up the qcom,nord-pcie compatible (reusing the existing SA8775P PCIe controller binding), and adds a CORE_CLK_CGC_DIS/AUX_PWR_DET workaround required to avoid a timing convergence issue in the PCIe power domain. Signed-off-by: Krishna Chaitanya Chundru --- To: Vinod Koul To: Neil Armstrong To: Rob Herring To: Krzysztof Kozlowski To: Conor Dooley To: Chaitanya Chundru To: Lorenzo Pieralisi To: Krzysztof WilczyƄski To: Manivannan Sadhasivam To: Bjorn Helgaas To: Bjorn Andersson To: Maxime Chevallier To: Philipp Zabel Cc: linux-arm-msm@vger.kernel.org Cc: linux-phy@lists.infradead.org Cc: devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-pci@vger.kernel.org --- Krishna Chaitanya Chundru (4): dt-bindings: phy: qcom: add Nord QMP PCIe PHY binding dt-bindings: pci: qcom: add Nord PCIe controller compatible PCI: qcom: Add CGC disable workaround for Nord PCIe phy: qcom: qmp-pcie: Add Nord Gen5x16 PCIe multi-PHY support .../devicetree/bindings/pci/qcom,pcie-sa8775p.yaml | 1 + .../bindings/phy/qcom,nord-qmp-pcie-phy.yaml | 276 +++++ drivers/pci/controller/dwc/pcie-qcom.c | 16 + drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c | 1077 +++++++++++++++++++- drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v6_40.h | 56 + drivers/phy/qualcomm/phy-qcom-qmp-pcs-v6_40.h | 14 + .../qualcomm/phy-qcom-qmp-qserdes-com-pcie-v6_40.h | 94 ++ .../phy-qcom-qmp-qserdes-txrxz-pcie-v6_40.h | 194 ++++ 8 files changed, 1688 insertions(+), 40 deletions(-) --- base-commit: c76bb6ed13d3c7dcd1ab3b248299c5a6f1460ec4 change-id: 20260810-nord-461809f1d5ae Best regards, -- Krishna Chaitanya Chundru