From patchwork Tue Aug 27 04:57:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sricharan R X-Patchwork-Id: 13778831 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 A2695149C7A; Tue, 27 Aug 2024 04:58:54 +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=1724734736; cv=none; b=iP6CTo/O7+GElZgQoo7OusdY7Qq5M/XknJ5r6Pnd/9MsWwSlMfcZgDC6qgE7AuV3YWrxetL6CwiOAHl41ywM7Xp+7VpnOF7Zva4ivY+VCgrVliLbhhljBILurd5urZoYtdZYhaWAGtSYcxPCzE6OQn81eiavmOhHc0vuhR3Y4jY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724734736; c=relaxed/simple; bh=ui/XWG0RdCYy6GacyhMdBs7fvxTEd0LDO6xAXetq8XA=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=aOtLs+0fR+2D6TfLOTNn8SMUsFmli5XT73vQN7qYFf7iKtOVNCSXAGy361M5CtEPbt7kPdEo9kC5ZYsYRKo7HR2qdo+Z6UYulDT4gGHqHK1MoGbAGdhiGZeabrBu6QufEijB0HfSncachjsTsMxUYp2IBTr7k1Kp41iMvNZVr7g= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=o7d3dPcY; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="o7d3dPcY" Received: from pps.filterd (m0279871.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47QJH50O007713; Tue, 27 Aug 2024 04:58:27 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= GiiTVNEcMX7+WRonoFPdel6UH0oPW1K2doSrjNxFSwk=; b=o7d3dPcYz6Jq6S5y j7IEuxLX/kJ4XmDj9OJJaEKVIlVruasUQ4VlZ/1l22RySUttSgQ4f+P5mjHJsDzq AVpZq60rwM88Fniz8yyRqtb1pcmCfhfRu6sPvrItO1i2MilyLMB2lNkfTt0PVmkj TODFL0KStCeCl+Qepu9lhKRdctIr19X+xFC6bmauj7YLxkUea5nNz/lEs6foTO8L Lob/ralwOINlH+eT1S62c2DnEZXpA8ydRoEW3fPpma+u+7ekRGLOqFbqpYDsOlCv THG/dregcJ55DNcgoPplEoF/qsuSAMENAmH1Mqk7K7wR80JHf/nj71OzR8RPwEDP w2JXNA== Received: from nalasppmta01.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 41796kwn47-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 04:58:27 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA01.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47R4wPh1004654 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 04:58:25 GMT Received: from hu-srichara-blr.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 26 Aug 2024 21:58:19 -0700 From: Sricharan R To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH V2 1/6] dt-bindings: phy: qcom,uniphy-pcie: Document PCIe uniphy Date: Tue, 27 Aug 2024 10:27:52 +0530 Message-ID: <20240827045757.1101194-2-quic_srichara@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827045757.1101194-1-quic_srichara@quicinc.com> References: <20240827045757.1101194-1-quic_srichara@quicinc.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: Qvi5GgEC4mZSD-lQdibVbanKB30QzvxR X-Proofpoint-ORIG-GUID: Qvi5GgEC4mZSD-lQdibVbanKB30QzvxR X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-27_03,2024-08-26_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 malwarescore=0 impostorscore=0 phishscore=0 adultscore=0 priorityscore=1501 lowpriorityscore=0 suspectscore=0 bulkscore=0 spamscore=0 clxscore=1015 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408270034 From: Nitheesh Sekar Document the Qualcomm UNIPHY PCIe 28LP present in IPQ5018. Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan Ramabadhran Reviewed-by: Krzysztof Kozlowski --- [v2] Fixed filename, title, fixed clock-name, reset-names .../phy/qcom,ipq5018-uniphy-pcie.yaml | 70 +++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 Documentation/devicetree/bindings/phy/qcom,ipq5018-uniphy-pcie.yaml diff --git a/Documentation/devicetree/bindings/phy/qcom,ipq5018-uniphy-pcie.yaml b/Documentation/devicetree/bindings/phy/qcom,ipq5018-uniphy-pcie.yaml new file mode 100644 index 000000000000..c04dd179eb8b --- /dev/null +++ b/Documentation/devicetree/bindings/phy/qcom,ipq5018-uniphy-pcie.yaml @@ -0,0 +1,70 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/phy/qcom,ipq5018-uniphy-pcie.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Qualcomm UNIPHY PCIe 28LP PHY controller for genx1, genx2 + +maintainers: + - Nitheesh Sekar + - Sricharan Ramabadhran + +properties: + compatible: + enum: + - qcom,ipq5018-uniphy-pcie-gen2x1 + - qcom,ipq5018-uniphy-pcie-gen2x2 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: pipe + + resets: + maxItems: 2 + + reset-names: + items: + - const: phy + - const: common + + "#phy-cells": + const: 0 + + "#clock-cells": + const: 0 + +required: + - compatible + - reg + - clocks + - clock-names + - resets + - reset-names + - "#phy-cells" + - "#clock-cells" + +additionalProperties: false + +examples: + - | + #include + #include + + phy@86000 { + compatible = "qcom,ipq5018-uniphy-pcie-gen2x2"; + reg = <0x86000 0x1000>; + clocks = <&gcc GCC_PCIE0_PIPE_CLK>; + clock-names = "pipe"; + resets = <&gcc GCC_PCIE0_PHY_BCR>, + <&gcc GCC_PCIE0PHY_PHY_BCR>; + reset-names = "phy", "common"; + #phy-cells = <0>; + #clock-cells = <0>; + }; From patchwork Tue Aug 27 04:57:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sricharan R X-Patchwork-Id: 13778830 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 ECB5274413; Tue, 27 Aug 2024 04:58:50 +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=1724734732; cv=none; b=tSeSssY7vc5U2noR49b65KuSaux2zUTprx/0Yi67nawzxlaCVV6kUCiGyLC4uxLG1Wrknq7VKk5/yixWPdgLANeS/Dtrg9cV6f2Kh1dWUsr+DWjPfoJgRH9r55l1cYOYE6sH5YMPKyrHJJpZac9FrQGSmuK0NNS9W+nQGnJ0nRA= ARC-Message-Signature: i=1; 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Reviewed-by: Krzysztof Kozlowski Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan Ramabadhran Reviewed-by: Manivannan Sadhasivam --- [v2] Added reviewed by tag .../devicetree/bindings/pci/qcom,pcie.yaml | 35 +++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml index f867746b1ae5..c12efa27b8d8 100644 --- a/Documentation/devicetree/bindings/pci/qcom,pcie.yaml +++ b/Documentation/devicetree/bindings/pci/qcom,pcie.yaml @@ -21,6 +21,7 @@ properties: - qcom,pcie-apq8064 - qcom,pcie-apq8084 - qcom,pcie-ipq4019 + - qcom,pcie-ipq5018 - qcom,pcie-ipq6018 - qcom,pcie-ipq8064 - qcom,pcie-ipq8064-v2 @@ -312,6 +313,39 @@ allOf: - const: ahb # AHB reset - const: phy_ahb # PHY AHB reset + - if: + properties: + compatible: + contains: + enum: + - qcom,pcie-ipq5018 + then: + properties: + clocks: + minItems: 6 + maxItems: 6 + clock-names: + items: + - const: iface # PCIe to SysNOC BIU clock + - const: axi_m # AXI Master clock + - const: axi_s # AXI Slave clock + - const: ahb # AHB clock + - const: aux # Auxiliary clock + - const: axi_bridge # AXI bridge clock + resets: + minItems: 8 + maxItems: 8 + reset-names: + items: + - const: pipe # PIPE reset + - const: sleep # Sleep reset + - const: sticky # Core sticky reset + - const: axi_m # AXI master reset + - const: axi_s # AXI slave reset + - const: ahb # AHB reset + - const: axi_m_sticky # AXI master sticky reset + - const: axi_s_sticky # AXI slave sticky reset + - if: properties: compatible: @@ -503,6 +537,7 @@ allOf: enum: - qcom,pcie-apq8064 - qcom,pcie-ipq4019 + - qcom,pcie-ipq5018 - qcom,pcie-ipq8064 - qcom,pcie-ipq8064v2 - qcom,pcie-ipq8074 From patchwork Tue Aug 27 04:57:54 2024 Content-Type: text/plain; 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Tue, 27 Aug 2024 04:58:37 GMT Received: from hu-srichara-blr.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 26 Aug 2024 21:58:31 -0700 From: Sricharan R To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH V2 3/6] phy: qcom: Introduce PCIe UNIPHY 28LP driver Date: Tue, 27 Aug 2024 10:27:54 +0530 Message-ID: <20240827045757.1101194-4-quic_srichara@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827045757.1101194-1-quic_srichara@quicinc.com> References: <20240827045757.1101194-1-quic_srichara@quicinc.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: 5dz-fSqnFsWLzmRYW0187KmxNXFOao8J X-Proofpoint-ORIG-GUID: 5dz-fSqnFsWLzmRYW0187KmxNXFOao8J X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-27_03,2024-08-26_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 phishscore=0 spamscore=0 adultscore=0 mlxscore=0 malwarescore=0 lowpriorityscore=0 priorityscore=1501 clxscore=1015 impostorscore=0 suspectscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408270032 From: Nitheesh Sekar Add Qualcomm PCIe UNIPHY 28LP driver support present in Qualcomm IPQ5018 SoC and the phy init sequence. Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan Ramabadhran --- [v2] Added the single lane compatible Added dev_err_probe, removed .owner, MODULE_ALIAS. Used for() instead of while in qcom_uniphy_pcie_init Used devm_platform_get_and_ioremap_resource Dropped usage of clock-output-name Fixed init order to enable clks first, then reset drivers/phy/qualcomm/Kconfig | 12 + drivers/phy/qualcomm/Makefile | 1 + .../phy/qualcomm/phy-qcom-uniphy-pcie-28lp.c | 341 ++++++++++++++++++ 3 files changed, 354 insertions(+) create mode 100644 drivers/phy/qualcomm/phy-qcom-uniphy-pcie-28lp.c diff --git a/drivers/phy/qualcomm/Kconfig b/drivers/phy/qualcomm/Kconfig index 846f8c99547f..8f043e8cb71c 100644 --- a/drivers/phy/qualcomm/Kconfig +++ b/drivers/phy/qualcomm/Kconfig @@ -154,6 +154,18 @@ config PHY_QCOM_M31_USB management. This driver is required even for peripheral only or host only mode configurations. +config PHY_QCOM_UNIPHY_PCIE_28LP + bool "PCIE UNIPHY 28LP PHY driver" + depends on ARCH_QCOM + depends on HAS_IOMEM + depends on OF + select GENERIC_PHY + help + Enable this to support the PCIe UNIPHY 28LP phy transceiver that + is used with PCIe controllers on Qualcomm IPQ5018 chips. It + handles PHY initialization, clock management required after + resetting the hardware and power management. + config PHY_QCOM_USB_HS tristate "Qualcomm USB HS PHY module" depends on USB_ULPI_BUS diff --git a/drivers/phy/qualcomm/Makefile b/drivers/phy/qualcomm/Makefile index eb60e950ad53..42038bc30974 100644 --- a/drivers/phy/qualcomm/Makefile +++ b/drivers/phy/qualcomm/Makefile @@ -17,6 +17,7 @@ obj-$(CONFIG_PHY_QCOM_QMP_USB_LEGACY) += phy-qcom-qmp-usb-legacy.o obj-$(CONFIG_PHY_QCOM_QUSB2) += phy-qcom-qusb2.o obj-$(CONFIG_PHY_QCOM_SNPS_EUSB2) += phy-qcom-snps-eusb2.o obj-$(CONFIG_PHY_QCOM_EUSB2_REPEATER) += phy-qcom-eusb2-repeater.o +obj-$(CONFIG_PHY_QCOM_UNIPHY_PCIE_28LP) += phy-qcom-uniphy-pcie-28lp.o obj-$(CONFIG_PHY_QCOM_USB_HS) += phy-qcom-usb-hs.o obj-$(CONFIG_PHY_QCOM_USB_HSIC) += phy-qcom-usb-hsic.o obj-$(CONFIG_PHY_QCOM_USB_HS_28NM) += phy-qcom-usb-hs-28nm.o diff --git a/drivers/phy/qualcomm/phy-qcom-uniphy-pcie-28lp.c b/drivers/phy/qualcomm/phy-qcom-uniphy-pcie-28lp.c new file mode 100644 index 000000000000..877e1f0f8927 --- /dev/null +++ b/drivers/phy/qualcomm/phy-qcom-uniphy-pcie-28lp.c @@ -0,0 +1,341 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (c) 2024, The Linux Foundation. All rights reserved. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define CDR_CTRL_REG_1 0x80 +#define CDR_CTRL_REG_2 0x84 +#define CDR_CTRL_REG_3 0x88 +#define CDR_CTRL_REG_4 0x8C +#define CDR_CTRL_REG_5 0x90 +#define CDR_CTRL_REG_6 0x94 +#define CDR_CTRL_REG_7 0x98 +#define SSCG_CTRL_REG_1 0x9c +#define SSCG_CTRL_REG_2 0xa0 +#define SSCG_CTRL_REG_3 0xa4 +#define SSCG_CTRL_REG_4 0xa8 +#define SSCG_CTRL_REG_5 0xac +#define SSCG_CTRL_REG_6 0xb0 +#define PCS_INTERNAL_CONTROL_2 0x2d8 + +#define PHY_MODE_FIXED 0x1 + +enum qcom_uniphy_pcie_type { + PHY_TYPE_PCIE = 1, + PHY_TYPE_PCIE_GEN2, + PHY_TYPE_PCIE_GEN3, +}; + +struct qcom_uniphy_regs { + unsigned int offset; + unsigned int val; +}; + +struct qcom_uniphy_pcie_data { + int lanes; + /* 2nd lane offset */ + int lane_offset; + unsigned int phy_type; + const struct qcom_uniphy_regs *init_seq; + unsigned int init_seq_num; +}; + +struct qcom_uniphy_pcie { + struct phy phy; + struct device *dev; + const struct qcom_uniphy_pcie_data *data; + struct clk_bulk_data *clks; + int num_clks; + struct reset_control *resets; + void __iomem *base; +}; + +#define phy_to_dw_phy(x) container_of((x), struct qca_uni_pcie_phy, phy) + +static const struct qcom_uniphy_regs ipq5018_regs[] = { + { + .offset = SSCG_CTRL_REG_4, + .val = 0x1cb9, + }, + { + .offset = SSCG_CTRL_REG_5, + .val = 0x023a, + }, + { + .offset = SSCG_CTRL_REG_3, + .val = 0xd360, + }, + { + .offset = SSCG_CTRL_REG_1, + .val = 0x1, + }, + { + .offset = SSCG_CTRL_REG_2, + .val = 0xeb, + }, + { + .offset = CDR_CTRL_REG_4, + .val = 0x3f9, + }, + { + .offset = CDR_CTRL_REG_5, + .val = 0x1c9, + }, + { + .offset = CDR_CTRL_REG_2, + .val = 0x419, + }, + { + .offset = CDR_CTRL_REG_1, + .val = 0x200, + }, + { + .offset = PCS_INTERNAL_CONTROL_2, + .val = 0xf101, + }, +}; + +static const struct qcom_uniphy_pcie_data ipq5018_2x1_data = { + .lanes = 1, + .lane_offset = 0x800, + .phy_type = PHY_TYPE_PCIE_GEN2, + .init_seq = ipq5018_regs, + .init_seq_num = ARRAY_SIZE(ipq5018_regs), +}; + +static const struct qcom_uniphy_pcie_data ipq5018_2x2_data = { + .lanes = 2, + .lane_offset = 0x800, + .phy_type = PHY_TYPE_PCIE_GEN2, + .init_seq = ipq5018_regs, + .init_seq_num = ARRAY_SIZE(ipq5018_regs), +}; + +static void qcom_uniphy_pcie_init(struct qcom_uniphy_pcie *phy) +{ + const struct qcom_uniphy_pcie_data *data = phy->data; + const struct qcom_uniphy_regs *init_seq; + void __iomem *base = phy->base; + int lane = 0; + int i; + + for (lane = 0; lane < data->lanes; lane++) { + init_seq = data->init_seq; + + for (i = 0; i < data->init_seq_num; i++, init_seq++) + writel(init_seq->val, base + init_seq->offset); + + base += data->lane_offset; + } +} + +static int qcom_uniphy_pcie_power_off(struct phy *x) +{ + struct qcom_uniphy_pcie *phy = phy_get_drvdata(x); + + reset_control_assert(phy->resets); + + clk_bulk_disable_unprepare(phy->num_clks, phy->clks); + + return 0; +} + +static int qcom_uniphy_pcie_power_on(struct phy *x) +{ + int ret; + struct qcom_uniphy_pcie *phy = phy_get_drvdata(x); + + ret = clk_bulk_prepare_enable(phy->num_clks, phy->clks); + if (ret) { + dev_err(phy->dev, "clk prepare and enable failed %d\n", ret); + return ret; + } + + usleep_range(30, 50); + + ret = reset_control_assert(phy->resets); + if (ret) { + dev_err(phy->dev, "reset assert failed (%d)\n", ret); + return ret; + } + + /* + * Delay periods before and after reset deassert are working values + * from downstream Codeaurora kernel + */ + usleep_range(100, 150); + + ret = reset_control_deassert(phy->resets); + if (ret) { + dev_err(phy->dev, "reset deassert failed (%d)\n", ret); + return ret; + } + + usleep_range(5000, 5100); + + qcom_uniphy_pcie_init(phy); + + return 0; +} + +static inline int qcom_uniphy_pcie_get_resources(struct platform_device *pdev, + struct qcom_uniphy_pcie *phy) +{ + struct resource *res; + + phy->base = devm_platform_get_and_ioremap_resource(pdev, 0, &res); + if (IS_ERR(phy->base)) { + dev_err(phy->dev, "cannot get phy registers\n"); + return PTR_ERR(phy->base); + } + + phy->num_clks = devm_clk_bulk_get_all(phy->dev, &phy->clks); + if (phy->num_clks < 0) + return phy->num_clks; + + phy->resets = devm_reset_control_array_get_exclusive(phy->dev); + if (IS_ERR(phy->resets)) + return PTR_ERR(phy->resets); + + return 0; +} + +/* + * Register a fixed rate pipe clock. + * + * The _pipe_clksrc generated by PHY goes to the GCC that gate + * controls it. The _pipe_clk coming out of the GCC is requested + * by the PHY driver for its operations. + * We register the _pipe_clksrc here. The gcc driver takes care + * of assigning this _pipe_clksrc as parent to _pipe_clk. + * Below picture shows this relationship. + * + * +---------------+ + * | PHY block |<<---------------------------------------+ + * | | | + * | +-------+ | +-----+ | + * I/P---^-->| PLL |---^--->pipe_clksrc--->| GCC |--->pipe_clk---+ + * clk | +-------+ | +-----+ + * +---------------+ + */ +static inline int phy_pipe_clk_register(struct qcom_uniphy_pcie *phy, + struct device_node *np) +{ + struct clk_init_data init = { }; + struct clk_fixed_rate *fixed; + struct clk_hw *hw; + char name[64]; + int ret; + + snprintf(name, sizeof(name), "%s::pipe_clk", dev_name(phy->dev)); + + fixed = devm_kzalloc(phy->dev, sizeof(*fixed), GFP_KERNEL); + if (!fixed) + return -ENOMEM; + + init.ops = &clk_fixed_rate_ops; + fixed->fixed_rate = 125000000; + fixed->hw.init = &init; + hw = &fixed->hw; + + hw = devm_clk_hw_register_fixed_rate(phy->dev, name, NULL, + 0, 125000000); + if (IS_ERR(hw)) + return PTR_ERR(hw); + + ret = devm_of_clk_add_hw_provider(phy->dev, of_clk_hw_simple_get, hw); + if (ret) + return ret; + + return 0; +} + +static const struct of_device_id qcom_uniphy_pcie_id_table[] = { + { + .compatible = "qcom,ipq5018-uniphy-pcie-gen2x2", + .data = &ipq5018_2x2_data, + }, + { + .compatible = "qcom,ipq5018-uniphy-pcie-gen2x1", + .data = &ipq5018_2x1_data, + }, + + { /* Sentinel */ }, +}; +MODULE_DEVICE_TABLE(of, qcom_uniphy_pcie_id_table); + +static const struct phy_ops pcie_ops = { + .power_on = qcom_uniphy_pcie_power_on, + .power_off = qcom_uniphy_pcie_power_off, + .owner = THIS_MODULE, +}; + +static int qcom_uniphy_pcie_probe(struct platform_device *pdev) +{ + struct qcom_uniphy_pcie *phy; + int ret; + struct phy *generic_phy; + struct phy_provider *phy_provider; + struct device *dev = &pdev->dev; + struct device_node *np = of_node_get(dev->of_node); + + phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL); + if (!phy) + return -ENOMEM; + + platform_set_drvdata(pdev, phy); + phy->dev = &pdev->dev; + + phy->data = of_device_get_match_data(dev); + if (!phy->data) + return -EINVAL; + + ret = qcom_uniphy_pcie_get_resources(pdev, phy); + if (ret < 0) + dev_err_probe(&pdev->dev, ret, "Failed to get resources:\n"); + + ret = phy_pipe_clk_register(phy, np); + if (ret) + dev_err_probe(&pdev->dev, ret, "pipe clk register failed\n"); + + generic_phy = devm_phy_create(phy->dev, NULL, &pcie_ops); + if (IS_ERR(generic_phy)) + dev_err_probe(&pdev->dev, PTR_ERR(generic_phy), + "phy create failed\n"); + + phy_set_drvdata(generic_phy, phy); + phy_provider = devm_of_phy_provider_register(phy->dev, + of_phy_simple_xlate); + if (IS_ERR(phy_provider)) + dev_err_probe(&pdev->dev, PTR_ERR(phy_provider), + "phy register failed\n"); + + return 0; +} + +static struct platform_driver qcom_uniphy_pcie_driver = { + .probe = qcom_uniphy_pcie_probe, + .driver = { + .name = "qcom-uniphy-pcie", + .of_match_table = qcom_uniphy_pcie_id_table, + }, +}; + +module_platform_driver(qcom_uniphy_pcie_driver); + +MODULE_LICENSE("Dual BSD/GPL"); +MODULE_DESCRIPTION("PCIE QCOM UNIPHY driver"); From patchwork Tue Aug 27 04:57:55 2024 Content-Type: text/plain; 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Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan R --- [v2] Rebased on top of latest tip and only compatiable addition is required drivers/pci/controller/dwc/pcie-qcom.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/pci/controller/dwc/pcie-qcom.c b/drivers/pci/controller/dwc/pcie-qcom.c index 6f953e32d990..e814d6cc062d 100644 --- a/drivers/pci/controller/dwc/pcie-qcom.c +++ b/drivers/pci/controller/dwc/pcie-qcom.c @@ -1722,6 +1722,7 @@ static const struct of_device_id qcom_pcie_match[] = { { .compatible = "qcom,pcie-apq8064", .data = &cfg_2_1_0 }, { .compatible = "qcom,pcie-apq8084", .data = &cfg_1_0_0 }, { .compatible = "qcom,pcie-ipq4019", .data = &cfg_2_4_0 }, + { .compatible = "qcom,pcie-ipq5018", .data = &cfg_2_9_0 }, { .compatible = "qcom,pcie-ipq6018", .data = &cfg_2_9_0 }, { .compatible = "qcom,pcie-ipq8064", .data = &cfg_2_1_0 }, { .compatible = "qcom,pcie-ipq8064-v2", .data = &cfg_2_1_0 }, From patchwork Tue Aug 27 04:57:56 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sricharan R X-Patchwork-Id: 13778834 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 A407A13C8F0; 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Tue, 27 Aug 2024 04:58:50 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA02.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47R4woJ2017310 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 04:58:50 GMT Received: from hu-srichara-blr.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 26 Aug 2024 21:58:43 -0700 From: Sricharan R To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH V2 5/6] arm64: dts: qcom: ipq5018: Add PCIe related nodes Date: Tue, 27 Aug 2024 10:27:56 +0530 Message-ID: <20240827045757.1101194-6-quic_srichara@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827045757.1101194-1-quic_srichara@quicinc.com> References: <20240827045757.1101194-1-quic_srichara@quicinc.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: aUcazOqyQA5b8ON4ZkEHJFy3nha9Z6Jk X-Proofpoint-ORIG-GUID: aUcazOqyQA5b8ON4ZkEHJFy3nha9Z6Jk X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-27_03,2024-08-26_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 adultscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 clxscore=1015 malwarescore=0 phishscore=0 priorityscore=1501 mlxscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408270034 From: Nitheesh Sekar Add phy and controller nodes for a 2-lane Gen2 and 1-lane Gen2 PCIe buses. Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan R --- [v2] Removed relocatable flags, removed assigned-clock-rates, fixed rest of the cosmetic comments. arch/arm64/boot/dts/qcom/ipq5018.dtsi | 168 +++++++++++++++++++++++++- 1 file changed, 166 insertions(+), 2 deletions(-) diff --git a/arch/arm64/boot/dts/qcom/ipq5018.dtsi b/arch/arm64/boot/dts/qcom/ipq5018.dtsi index 7e6e2c121979..dd5d6b7ff094 100644 --- a/arch/arm64/boot/dts/qcom/ipq5018.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq5018.dtsi @@ -9,6 +9,7 @@ #include #include #include +#include / { interrupt-parent = <&intc>; @@ -143,7 +144,33 @@ usbphy0: phy@5b000 { resets = <&gcc GCC_QUSB2_0_PHY_BCR>; #phy-cells = <0>; + }; + + pcie_x1phy: phy@7e000{ + compatible = "qcom,ipq5018-uniphy-pcie-gen2x1"; + reg = <0x0007e000 0x800>; + #phy-cells = <0>; + #clock-cells = <0>; + clocks = <&gcc GCC_PCIE1_PIPE_CLK>; + clock-names = "pipe"; + assigned-clocks = <&gcc GCC_PCIE1_PIPE_CLK>; + resets = <&gcc GCC_PCIE1_PHY_BCR>, + <&gcc GCC_PCIE1PHY_PHY_BCR>; + reset-names = "phy", "common"; + status = "disabled"; + }; + pcie_x2phy: phy@86000{ + compatible = "qcom,ipq5018-uniphy-pcie-gen2x2"; + reg = <0x00086000 0x1000>; + #phy-cells = <0>; + #clock-cells = <0>; + clocks = <&gcc GCC_PCIE0_PIPE_CLK>; + clock-names = "pipe"; + assigned-clocks = <&gcc GCC_PCIE0_PIPE_CLK>; + resets = <&gcc GCC_PCIE0_PHY_BCR>, + <&gcc GCC_PCIE0PHY_PHY_BCR>; + reset-names = "phy", "common"; status = "disabled"; }; @@ -170,8 +197,8 @@ gcc: clock-controller@1800000 { reg = <0x01800000 0x80000>; clocks = <&xo_board_clk>, <&sleep_clk>, - <0>, - <0>, + <&pcie_x2phy>, + <&pcie_x1phy>, <0>, <0>, <0>, @@ -387,6 +414,143 @@ frame@b128000 { status = "disabled"; }; }; + + pcie0: pci@80000000 { + compatible = "qcom,pcie-ipq5018"; + reg = <0x80000000 0xf1d>, + <0x80000f20 0xa8>, + <0x80001000 0x1000>, + <0x00078000 0x3000>, + <0x80100000 0x1000>; + reg-names = "dbi", "elbi", "atu", "parf", "config"; + device_type = "pci"; + linux,pci-domain = <0>; + bus-range = <0x00 0xff>; + num-lanes = <1>; + max-link-speed = <2>; + #address-cells = <3>; + #size-cells = <2>; + + phys = <&pcie_x1phy>; + phy-names ="pciephy"; + + ranges = <0x01000000 0 0x80200000 0x80200000 0 0x00100000 + 0x02000000 0 0x80300000 0x80300000 0 0x10000000>; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc 0 0 142 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 2 &intc 0 0 143 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc 0 0 144 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc 0 0 145 IRQ_TYPE_LEVEL_HIGH>; + + interrupts = ; + interrupt-names = "global_irq"; + + clocks = <&gcc GCC_SYS_NOC_PCIE1_AXI_CLK>, + <&gcc GCC_PCIE1_AXI_M_CLK>, + <&gcc GCC_PCIE1_AXI_S_CLK>, + <&gcc GCC_PCIE1_AHB_CLK>, + <&gcc GCC_PCIE1_AUX_CLK>, + <&gcc GCC_PCIE1_AXI_S_BRIDGE_CLK>; + + clock-names = "iface", + "axi_m", + "axi_s", + "ahb", + "aux", + "axi_bridge"; + + resets = <&gcc GCC_PCIE1_PIPE_ARES>, + <&gcc GCC_PCIE1_SLEEP_ARES>, + <&gcc GCC_PCIE1_CORE_STICKY_ARES>, + <&gcc GCC_PCIE1_AXI_MASTER_ARES>, + <&gcc GCC_PCIE1_AXI_SLAVE_ARES>, + <&gcc GCC_PCIE1_AHB_ARES>, + <&gcc GCC_PCIE1_AXI_MASTER_STICKY_ARES>, + <&gcc GCC_PCIE1_AXI_SLAVE_STICKY_ARES>; + + reset-names = "pipe", + "sleep", + "sticky", + "axi_m", + "axi_s", + "ahb", + "axi_m_sticky", + "axi_s_sticky"; + + msi-map = <0x0 &v2m0 0x0 0xff8>; + status = "disabled"; + }; + + pcie1: pci@a0000000 { + compatible = "qcom,pcie-ipq5018"; + reg = <0xa0000000 0xf1d>, + <0xa0000f20 0xa8>, + <0xa0001000 0x1000>, + <0x00080000 0x3000>, + <0xa0100000 0x1000>; + reg-names = "dbi", "elbi", "atu", "parf", "config"; + device_type = "pci"; + linux,pci-domain = <1>; + bus-range = <0x00 0xff>; + num-lanes = <2>; + max-link-speed = <2>; + #address-cells = <3>; + #size-cells = <2>; + + phys = <&pcie_x2phy>; + phy-names ="pciephy"; + + ranges = <0x01000000 0 0xa0200000 0xa0200000 0 0x00100000 + 0x02000000 0 0xa0300000 0xa0300000 0 0x10000000>; + + #interrupt-cells = <1>; + interrupt-map-mask = <0 0 0 0x7>; + interrupt-map = <0 0 0 1 &intc 0 0 75 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 2 &intc 0 0 78 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 3 &intc 0 0 79 IRQ_TYPE_LEVEL_HIGH>, + <0 0 0 4 &intc 0 0 83 IRQ_TYPE_LEVEL_HIGH>; + + interrupts = ; + interrupt-names = "global_irq"; + + clocks = <&gcc GCC_SYS_NOC_PCIE0_AXI_CLK>, + <&gcc GCC_PCIE0_AXI_M_CLK>, + <&gcc GCC_PCIE0_AXI_S_CLK>, + <&gcc GCC_PCIE0_AHB_CLK>, + <&gcc GCC_PCIE0_AUX_CLK>, + <&gcc GCC_PCIE0_AXI_S_BRIDGE_CLK>; + + clock-names = "iface", + "axi_m", + "axi_s", + "ahb", + "aux", + "axi_bridge"; + + resets = <&gcc GCC_PCIE0_PIPE_ARES>, + <&gcc GCC_PCIE0_SLEEP_ARES>, + <&gcc GCC_PCIE0_CORE_STICKY_ARES>, + <&gcc GCC_PCIE0_AXI_MASTER_ARES>, + <&gcc GCC_PCIE0_AXI_SLAVE_ARES>, + <&gcc GCC_PCIE0_AHB_ARES>, + <&gcc GCC_PCIE0_AXI_MASTER_STICKY_ARES>, + <&gcc GCC_PCIE0_AXI_SLAVE_STICKY_ARES>; + + reset-names = "pipe", + "sleep", + "sticky", + "axi_m", + "axi_s", + "ahb", + "axi_m_sticky", + "axi_s_sticky"; + + msi-map = <0x0 &v2m0 0x0 0xff8>; + status = "disabled"; + }; + }; timer { From patchwork Tue Aug 27 04:57:57 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sricharan R X-Patchwork-Id: 13778833 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 B67EF15623A; 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Tue, 27 Aug 2024 04:58:57 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA03.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47R4wtC9028644 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 27 Aug 2024 04:58:55 GMT Received: from hu-srichara-blr.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Mon, 26 Aug 2024 21:58:49 -0700 From: Sricharan R To: , , , , , , , , , , , , , , , , , , , , Subject: [PATCH V2 6/6] arm64: dts: qcom: ipq5018: Enable PCIe Date: Tue, 27 Aug 2024 10:27:57 +0530 Message-ID: <20240827045757.1101194-7-quic_srichara@quicinc.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240827045757.1101194-1-quic_srichara@quicinc.com> References: <20240827045757.1101194-1-quic_srichara@quicinc.com> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: CG0lggzUw9Qy8DAvZwHZoq4UbsbXlpnY X-Proofpoint-GUID: CG0lggzUw9Qy8DAvZwHZoq4UbsbXlpnY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-27_03,2024-08-26_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 mlxlogscore=768 priorityscore=1501 clxscore=1015 malwarescore=0 spamscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408270034 From: Nitheesh Sekar Enable the PCIe controller and PHY nodes for RDP 432-c2. Signed-off-by: Nitheesh Sekar Signed-off-by: Sricharan Ramabadhran --- [v2] Moved status as last property arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts index 8460b538eb6a..2b253da7f776 100644 --- a/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts +++ b/arch/arm64/boot/dts/qcom/ipq5018-rdp432-c2.dts @@ -28,6 +28,15 @@ &blsp1_uart1 { status = "okay"; }; +&pcie1 { + perst-gpios = <&tlmm 15 GPIO_ACTIVE_LOW>; + status = "okay"; +}; + +&pcie_x2phy { + status = "okay"; +}; + &sdhc_1 { pinctrl-0 = <&sdc_default_state>; pinctrl-names = "default";