From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 6E4F7353EE0 for ; Mon, 21 Sep 2026 05:37:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789969045; cv=none; b=JwpI/alptoU0SKhk5XREDp+WYGDB6XOGrsUtQEaXOHLLuYiANBb11hwDL39V0AY1bOR+ZU6tfI06SCw7Y+Fesldm1jg873NebWiPk3ILa1GkGNtVANeOSOw6sdGGgzKg6+XWMTRgNYdloCCxkSijQ3UxRxSVMgJTOiv5BRf53vo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789969045; c=relaxed/simple; bh=9U2el7qhXi1CczJc0aDnMlryL3xXkou20Zt0ZP5PomI=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=S5FAq5g5bUnL57UlfQjieKlXOH8XGjWOWHqCtQgOHzZrrT3sKs5VBrnlAn4rc7AyGlMUHfvANYmKFKCjWxTpcfGhbtSt4w8hsNbA6/KfrktvS3x5JD2ehEsK3kQMfBmmw19kSncKZkQbcNDY/EKWeLHxBaPy3YX8L7rrTUP3W4s= 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=dwTba8zl; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=CQgGIuLu; arc=none smtp.client-ip=205.220.180.131 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="dwTba8zl"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="CQgGIuLu" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 68L4Jag8002283 for ; Mon, 21 Sep 2026 05:37:22 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=jFaEBWUFf1wNsYWOuTWbsW 2vcMd0ik36yK685CRq5/E=; b=dwTba8zlpfJGt8JpiyeXQ3QROu1dKkrtM4Tspc PRCOh4Jv5eZwpRYgVkyRw+xP+DcXSW3HWNe5rzKuy6oxmSBs3qARBbgTGvb20Acw Bm6ZGXloB/qyjxfeDd+w9HigNYUAg7T3YlEA2YJ6I2VDT7nAto9kQIOzaQhlsNDa 92tYDbHnrFeIcH8HIObfGpvu7v4sUVr0zyEdA9yElCPWLaFrq0OtME6q94xYtuZ9 H5hcfnZf/PHJQBL1azm7aBS2PPycJyo588+JVstcK6xDEWGNsx0MVeBIIIWAa/fr uK3RcXltT4hSDcOgQpxaWhbMUXooXvZVQnWxXh1pmlTHT1LQ== Received: from mail-pj1-f71.google.com (mail-pj1-f71.google.com [209.85.216.71]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4gtwf5g76t-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Mon, 21 Sep 2026 05:37:22 +0000 (GMT) Received: by mail-pj1-f71.google.com with SMTP id 98e67ed59e1d1-39af92138f9so3932695a91.0 for ; Sun, 20 Sep 2026 22:37:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1789969041; x=1790573841; 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=jFaEBWUFf1wNsYWOuTWbsW2vcMd0ik36yK685CRq5/E=; b=CQgGIuLuw07psvnWqTwz0wWm8Ax2h9P2xrr6TYcCiQ/vnGUxGN6aUHN79sK2jz4Yml zqVp8iTX5fOYA9NPacrz+dTN+Havhatcolask3CauIz/D443gKeEta3NTwD63dBv67s5 A/2ZcA7F7IgXvp/ALUTWRRjZnVQVKeB28EUUWZjZbrJ1DiqOtn9Yc9KlxtAQaT3nXLCL 0+9maFKxiL8h+rmwPHjAsuiVskinxDSUSgH+YtySXO1Ft44QGy7eQH3xlTijhLfq/ivZ V5zGXrhSTT+myr0Pu7MTlzI7TSewYWJZzamiLSJlnvXjVjGsaJxl/DXUf+1SNJZI7WOg 9FsA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1789969041; x=1790573841; 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=jFaEBWUFf1wNsYWOuTWbsW2vcMd0ik36yK685CRq5/E=; b=T8qhiophuFg+jjfm2nPUeCwaRk/l8dNhiF5ZHxgilBmXA80ujCyCZwB9P5Lt4QYoVa ZG+7RUDbFbS/w1PHLXSOw6L015TGFHbbvezwH93WkSSJMTxhgIz3yu7lWamd4803+2+r V2DZW4soltofq26Kz7UKGDgD1mRgl81HyzdShcqW3glWIH4OVpIq8/VqkVBrRPCpnQBq bL0WkVyls1zO7oKHsfYoNWqGMPFA32Ttp7Rc5GbCx3tqSwzv69bmMNOMJf6N5OvNgyR1 re0DpEoGY3UEyXrC4I6WjH34iicIu387e+npUkZbapd8P47Fl87y6XWuVw4H9wiMZsAT 8YBw== X-Forwarded-Encrypted: i=1; AKwUvBxdM6r8UxWnSNQCmAEOfjn6FB/RJhAv8bLTm5ILE7tq8O26w9CEQi8bSJKq/YDcfcoTiELmCuZnS6HKzKo=@vger.kernel.org X-Gm-Message-State: AFuF++lid0AzquIpq7kZY30prI4UoH4wk8+gm1wM5sq41xWLpzb3a8pH 9tS1/2qPQV+SRrN+M6XxqlpNH/h0jgV/El6j+NwLVD8wBiNeK0oXstkJ8//+GsXjahN+uc63kDn AjJCoiHnWO8h5Y3vGUiFON897+iqiXpNC8ciw+OvwGqUe5rIg9h6po9BGdQRdqsMRzCE= X-Gm-Gg: AYBFou2/1fphbKpYD+m842XBrnF2gvnU67DwK558may5RG78tb2Fyi3TTVzbLZ8yjNw ajQisGDyum3SATjoeTz1qG1DJnyRznHxKat3pHQ/ujciroKsao1IXEglfGxn1WM0b11w8zrHzXG 2m+4Pe7M/HZBnYANLG9FUouRSSkXoQ6wSYKCc/TWIst9YTF9X7ur1W1tfjadDaB6XnT2eH8Olpo TsQXpoYJpPLASVQqA+Cl4iHWjlGU2l/fk3QfruMVl7IUW8osd5GzRBQgRqZ4giYsEUc4hN2rwO+ Emal94Wkmgvc3mjh3UH6buE5t0+DIoM/Wf9wVvXNnZkUIRVpFT+Xf5LrCNtpH9rgb0CN31ousUx HZOlG/jDoDvcLZ5bKpOpa62F2lYVVjQNvXw== X-Received: by 2002:a17:90b:4b87:b0:39e:6c68:fd8f with SMTP id 98e67ed59e1d1-39e6c68ff16mr6329927a91.36.1789969041229; Sun, 20 Sep 2026 22:37:21 -0700 (PDT) X-Received: by 2002:a17:90b:4b87:b0:39e:6c68:fd8f with SMTP id 98e67ed59e1d1-39e6c68ff16mr6329899a91.36.1789969040772; Sun, 20 Sep 2026 22:37:20 -0700 (PDT) Received: from hu-krichai-hyd.qualcomm.com ([202.46.23.25]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-144d55d45a6sm15054568c88.9.2026.09.20.22.37.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Sep 2026 22:37:20 -0700 (PDT) From: Krishna Chaitanya Chundru Subject: [PATCH v4 0/6] Add PCIe support for Qualcomm Nord platform Date: Mon, 21 Sep 2026 11:07:08 +0530 Message-Id: <20260921-nord-v4-0-ed05c6e09240@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@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=H4sIAIXCsGoC/3XOy2oCMRgF4FeRrI38SSY3V32P4iLXmqKTNtHBI vPuTXRAwXYTOHC+8+eKaigpVLRdXVEJU6opjy0M6xVyezN+BJx8y4gCFaAI4DEXjwdBFOhIPDc BtepXCTFdbjPvu3uuZ/sZ3Knb3tinesrl53ZnIr23TNLhPjkRDFgLbZmUFiRjb7nWzffZHFw+H jft6TOL4U9GOqCRWiUFN6+m/2aiz/fUYmmzRNnItSfai/iPZQ+rQS+WNWvBKCopcXyQf9h5nn8 BWJNHaF0BAAA= 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 , shengchao.guo@oss.qualcomm.com, 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, Krzysztof Kozlowski , Konrad Dybcio , Qiang Yu , Manivannan Sadhasivam X-Mailer: b4 0.15.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1789969033; l=4478; i=krishna.chundru@oss.qualcomm.com; s=20230907; h=from:subject:message-id; bh=9U2el7qhXi1CczJc0aDnMlryL3xXkou20Zt0ZP5PomI=; b=78vCJBSTEURDNOvkYHZEXlJYGdromKpI6vIQXnjl6Xu8QFsO0A/bb6W6x7MCwiL1vrGqD3pqE 0JWiKma9RVZCx6bEne6OR7fH7t9/KZzpdZwONI+F9uIuJqBqrsmOduh X-Developer-Key: i=krishna.chundru@oss.qualcomm.com; a=ed25519; pk=10CL2pdAKFyzyOHbfSWHCD0X0my7CXxj8gJScmn1FAg= X-Authority-Analysis: v=2.4 cv=SJLXx+vH c=1 sm=1 tr=0 ts=6ab0c292 cx=c_pps a=UNFcQwm+pnOIJct1K4W+Mw==:117 a=ZePRamnt/+rB5gQjfz0u9A==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=bC-a23v3AAAA:8 a=EUspDBNiAAAA:8 a=VwQbUJbxAAAA:8 a=KKAkSRfTAAAA:8 a=1XWaLZrsAAAA:8 a=P-IC7800AAAA:8 a=JfrnYn6hAAAA:8 a=uxWjj-y4xJQSND-wKXoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=uKXjsCUrEbL0IQVhDsJ9:22 a=FO4_E8m0qiDe52t0p3_H:22 a=cvBusfyB2V15izCimMoJ:22 a=d3PnA9EDa4IxuAV0gXij:22 a=1CNFftbPRP8L7MoqJWF3:22 X-Proofpoint-GUID: 1IB34u7iF_UV9jCRRrMugx3dMdENT3tZ X-Proofpoint-ORIG-GUID: 1IB34u7iF_UV9jCRRrMugx3dMdENT3tZ X-Proofpoint-Spam-Info: AW1haW4tMjYwOTIxMDA3OCBTYWx0ZWRfX0pO19zVw3Hqb lSPxjBckwDhPeFDvgcpsuOYHn+ariP/Zs99BD4xOba/zm2Qf2C21NPwGQwdVeIX92wqwouGK9I8 BwP/id360bxguK37KWWHv1tatBmGV1I= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTIxMDA3OCBTYWx0ZWRfX+wNkl9u7GFSO jVGGFqqmODZXPjefX8xVavtJB1TTNvdMfmcM8w/C5nTijj3BB2+s0j+ovObSe3o/upxCD04bavs EkcFFdbUDs1aJHwUXv2K52cP5i3NJvmM/P1dliMbeXfIutYEkkTZNSwtMq9vVCCm37s73VZIQdb fV7VFGIYs/J73wu7kBorM9keUOIrQ55c2hz96VQOR4wheqMaZbuYFuUu/xwBuw28mD5Xa4HBXsN z5pvzZMfQDbTlFPrBwXmTto15IhxFCcxs5SaO6SfwQ8NxYYoP2h4LkUkKGNx8KlCWApsiyofehu NO7t2lldjtMUZX0e2y3+6qpdPFVCc9mTNY8h3iCzqnK6Z8bjqcK41J0QBVBzKdOOQH6SEIyOqEp rhVJe7uCBNFkLr3wlwK5FgTdl8kED9aj7TQ2pzosO2zV9IIfxiYALgKi00NdCbz7Z6gL9ZNr0Xy q02RCFsvVvHdeHPQDEA== 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=2026-09-21_02,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 suspectscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 spamscore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609210078 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 Wilczyński To: Manivannan Sadhasivam To: Bjorn Helgaas To: Bjorn Andersson To: Maxime Chevallier To: Philipp Zabel Cc: shengchao.guo@oss.qualcomm.com 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 Cc: shengchao.guo@oss.qualcomm.com --- Changes in v4: - Couple of nits in dt binding & phy driver (shawn, Mani) - Add proper description for link-mode & phy-cells - Remove soc node and address cells from example (Mani) - change cgc_dis_workaround to disable_cgc (Mani) - Split common changes and nord changes (Mani) - Link to v3: https://patch.msgid.link/20260909-nord-v3-0-b0a82721c547@oss.qualcomm.com Changes in v3: - change the name to quadfurcated phy (Konrad). - remove min items and change clocks order (Krzysztof). - Factor out the common config and create overlays & try to use common symbols for glymur and nord (Konrad). - create qphy_setbit and qphy_clrbit (Qiang Yu). - and in qmp_pcie_exit() apply settings only when nocsr is present (Qiang Yu). - Link to v2: https://patch.msgid.link/20260828-nord-v2-0-18bf59d19d6f@oss.qualcomm.com Changes in v2: - Fix dtbinding errors (Krzysztof) - Link to v1: https://patch.msgid.link/20260825-nord-v1-0-7c02f2b8765a@oss.qualcomm.com --- Krishna Chaitanya Chundru (6): dt-bindings: phy: qcom: add Nord QMP PCIe PHY binding dt-bindings: pci: qcom: add Nord PCIe controller compatible PCI: qcom: Add Nord PCIe controller support phy: qcom: qmp: Move qphy_setbits/clrbits/checkbits to common header phy: qcom: qmp-pcie: Refactor common multiphy handling phy: qcom: qmp-pcie: Add Nord Gen5x16 PCIe multi-PHY support .../devicetree/bindings/pci/qcom,pcie-sa8775p.yaml | 1 + .../phy/qcom,nord-qmp-gen5x16-pcie-phy.yaml | 267 ++++++ drivers/pci/controller/dwc/pcie-qcom.c | 16 + drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 24 - drivers/phy/qualcomm/phy-qcom-qmp-common.h | 32 + drivers/phy/qualcomm/phy-qcom-qmp-pcie-msm8996.c | 24 - drivers/phy/qualcomm/phy-qcom-qmp-pcie-multiphy.c | 970 +++++++++++++++++++-- drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 32 - drivers/phy/qualcomm/phy-qcom-qmp-pcs-pcie-v6_40.h | 55 ++ 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 +++++ drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 24 - drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 24 - drivers/phy/qualcomm/phy-qcom-qmp-usbc.c | 24 - 15 files changed, 1566 insertions(+), 229 deletions(-) --- base-commit: 5ad078139f684fa1f018fe0134812d4aa17fa53f change-id: 20260810-nord-461809f1d5ae Best regards, -- Krishna Chaitanya Chundru