From patchwork Tue Aug 31 05:57:29 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 12466459 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7A694C43214 for ; Tue, 31 Aug 2021 05:57:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5606E6023D for ; Tue, 31 Aug 2021 05:57:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238696AbhHaF6s (ORCPT ); Tue, 31 Aug 2021 01:58:48 -0400 Received: from guitar.tcltek.co.il ([192.115.133.116]:52710 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235078AbhHaF6s (ORCPT ); Tue, 31 Aug 2021 01:58:48 -0400 Received: from tarshish.tkos.co.il (unknown [10.0.8.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.tkos.co.il (Postfix) with ESMTPS id C725B44042B; Tue, 31 Aug 2021 08:57:35 +0300 (IDT) From: Baruch Siach To: Andy Gross , Bjorn Andersson , Felipe Balbi , Rob Herring Cc: Baruch Siach , Kathiravan T , Balaji Prakash J , Jack Pham , Thinh Nguyen , Robert Marko , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 1/4] dt-bindings: usb: dwc3: add reference clock period Date: Tue, 31 Aug 2021 08:57:29 +0300 Message-Id: X-Mailer: git-send-email 2.33.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Document the snps,ref-clock-period-ns property that describes reference clock period when it deviates from the default set value. Signed-off-by: Baruch Siach Acked-by: Felipe Balbi Reviewed-by: Rob Herring --- v2: Address comments from Rob Herring: Use standard unit suffix Reword description --- Documentation/devicetree/bindings/usb/snps,dwc3.yaml | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml index 41416fbd92aa..413ac37c447f 100644 --- a/Documentation/devicetree/bindings/usb/snps,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/snps,dwc3.yaml @@ -252,6 +252,14 @@ properties: minimum: 0 maximum: 0x3f + snps,ref-clock-period-ns: + description: + Value for REFCLKPER field of GUCTL register for reference clock period in + nanoseconds, when the hardware set default does not match the actual + clock. + minimum: 1 + maximum: 0x3ff + snps,rx-thr-num-pkt-prd: description: Periodic ESS RX packet threshold count (host mode only). Set this and From patchwork Tue Aug 31 05:57:30 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 12466465 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AB86C4320E for ; Tue, 31 Aug 2021 05:58:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2816C61057 for ; Tue, 31 Aug 2021 05:58:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239581AbhHaF7E (ORCPT ); Tue, 31 Aug 2021 01:59:04 -0400 Received: from guitar.tcltek.co.il ([192.115.133.116]:52736 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235078AbhHaF7B (ORCPT ); Tue, 31 Aug 2021 01:59:01 -0400 Received: from tarshish.tkos.co.il (unknown [10.0.8.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.tkos.co.il (Postfix) with ESMTPS id F335C440599; Tue, 31 Aug 2021 08:57:38 +0300 (IDT) From: Baruch Siach To: Andy Gross , Bjorn Andersson , Felipe Balbi , Rob Herring Cc: Balaji Prakash J , Rob Herring , Baruch Siach , Kathiravan T , Jack Pham , Thinh Nguyen , Robert Marko , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 2/4] usb: dwc3: reference clock period configuration Date: Tue, 31 Aug 2021 08:57:30 +0300 Message-Id: <9f399bdf1ff752e31ab7497e3d5ce19bbb3ff247.1630389452.git.baruch@tkos.co.il> X-Mailer: git-send-email 2.33.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Balaji Prakash J Set reference clock period when it differs from dwc3 default hardware set. We could calculate clock period based on reference clock frequency. But this information is not always available. This is the case of PCI bus attached USB host. For that reason we use a custom property. Tested (USB2 only) on IPQ6010 SoC based board with 24 MHz reference clock while hardware default is 19.2 MHz. Nacked-by: Rob Herring Signed-off-by: Balaji Prakash J [ baruch: rewrite commit message; drop GFLADJ code; remove 'quirk-' from property name; mention tested hardware ] Signed-off-by: Baruch Siach Acked-by: Felipe Balbi --- v3: Add standard unit suffix (Rob Herring) v2: Remove snps,quirk-ref-clock-adjustment; not needed for tested hardware Rename DT property to snps,ref-clock-period (Thinh Nguyen) Use FIELD_PREP() (Bjorn Andersson) --- drivers/usb/dwc3/core.c | 29 +++++++++++++++++++++++++++++ drivers/usb/dwc3/core.h | 6 ++++++ 2 files changed, 35 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index ba74ad7f6995..31b8cb101a47 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include @@ -351,6 +352,29 @@ static void dwc3_frame_length_adjustment(struct dwc3 *dwc) } } +/** + * dwc3_ref_clk_period - Reference clock period configuration + * Default reference clock period depends on hardware + * configuration. For systems with reference clock that differs + * from the default, this will set clock period in DWC3_GUCTL + * register. + * @dwc: Pointer to our controller context structure + * @ref_clk_per: reference clock period in ns + */ +static void dwc3_ref_clk_period(struct dwc3 *dwc) +{ + u32 reg; + + if (dwc->ref_clk_per == 0) + return; + + reg = dwc3_readl(dwc->regs, DWC3_GUCTL); + reg &= ~DWC3_GUCTL_REFCLKPER_MASK; + reg |= FIELD_PREP(DWC3_GUCTL_REFCLKPER_MASK, dwc->ref_clk_per); + dwc3_writel(dwc->regs, DWC3_GUCTL, reg); +} + + /** * dwc3_free_one_event_buffer - Frees one event buffer * @dwc: Pointer to our controller context structure @@ -1011,6 +1035,9 @@ static int dwc3_core_init(struct dwc3 *dwc) /* Adjust Frame Length */ dwc3_frame_length_adjustment(dwc); + /* Adjust Reference Clock Period */ + dwc3_ref_clk_period(dwc); + dwc3_set_incr_burst_type(dwc); usb_phy_set_suspend(dwc->usb2_phy, 0); @@ -1371,6 +1398,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) &dwc->hsphy_interface); device_property_read_u32(dev, "snps,quirk-frame-length-adjustment", &dwc->fladj); + device_property_read_u32(dev, "snps,ref-clock-period-ns", + &dwc->ref_clk_per); dwc->dis_metastability_quirk = device_property_read_bool(dev, "snps,dis_metastability_quirk"); diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 5991766239ba..1e4e21ea9d97 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -386,6 +386,10 @@ #define DWC3_GFLADJ_30MHZ_SDBND_SEL BIT(7) #define DWC3_GFLADJ_30MHZ_MASK 0x3f +/* Global User Control Register*/ +#define DWC3_GUCTL_REFCLKPER_MASK 0xffc00000 +#define DWC3_GUCTL_REFCLKPER_SEL 22 + /* Global User Control Register 2 */ #define DWC3_GUCTL2_RST_ACTBITLATER BIT(14) @@ -969,6 +973,7 @@ struct dwc3_scratchpad_array { * @regs: base address for our registers * @regs_size: address space size * @fladj: frame length adjustment + * @ref_clk_per: reference clock period configuration * @irq_gadget: peripheral controller's IRQ number * @otg_irq: IRQ number for OTG IRQs * @current_otg_role: current role of operation while using the OTG block @@ -1141,6 +1146,7 @@ struct dwc3 { struct power_supply *usb_psy; u32 fladj; + u32 ref_clk_per; u32 irq_gadget; u32 otg_irq; u32 current_otg_role; From patchwork Tue Aug 31 05:57:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 12466463 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 75986C4320E for ; Tue, 31 Aug 2021 05:58:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5B5606108B for ; Tue, 31 Aug 2021 05:58:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239554AbhHaF64 (ORCPT ); Tue, 31 Aug 2021 01:58:56 -0400 Received: from guitar.tcltek.co.il ([192.115.133.116]:52727 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235078AbhHaF6z (ORCPT ); Tue, 31 Aug 2021 01:58:55 -0400 Received: from tarshish.tkos.co.il (unknown [10.0.8.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.tkos.co.il (Postfix) with ESMTPS id 80AD6440627; Tue, 31 Aug 2021 08:57:40 +0300 (IDT) From: Baruch Siach To: Andy Gross , Bjorn Andersson , Felipe Balbi , Rob Herring Cc: Baruch Siach , Rob Herring , Kathiravan T , Balaji Prakash J , Jack Pham , Thinh Nguyen , Robert Marko , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 3/4] dt-bindings: usb: qcom,dwc3: add binding for IPQ6018 Date: Tue, 31 Aug 2021 08:57:31 +0300 Message-Id: <6a9b00d16a707aa2a94bcba71a24932cc201a473.1630389452.git.baruch@tkos.co.il> X-Mailer: git-send-email 2.33.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Add compatible string for Qualcomm IPQ6018 SoC. Acked-by: Rob Herring Signed-off-by: Baruch Siach --- Documentation/devicetree/bindings/usb/qcom,dwc3.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml index 4e6451789806..55ed4b4c7f51 100644 --- a/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml +++ b/Documentation/devicetree/bindings/usb/qcom,dwc3.yaml @@ -13,6 +13,7 @@ properties: compatible: items: - enum: + - qcom,ipq6018-dwc3 - qcom,msm8996-dwc3 - qcom,msm8998-dwc3 - qcom,sc7180-dwc3 From patchwork Tue Aug 31 05:57:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Baruch Siach X-Patchwork-Id: 12466461 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5F435C4320A for ; Tue, 31 Aug 2021 05:57:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4E8CF61076 for ; Tue, 31 Aug 2021 05:57:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239534AbhHaF6x (ORCPT ); Tue, 31 Aug 2021 01:58:53 -0400 Received: from guitar.tcltek.co.il ([192.115.133.116]:52723 "EHLO mx.tkos.co.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235078AbhHaF6w (ORCPT ); Tue, 31 Aug 2021 01:58:52 -0400 Received: from tarshish.tkos.co.il (unknown [10.0.8.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mx.tkos.co.il (Postfix) with ESMTPS id 70BAB440AEE; Tue, 31 Aug 2021 08:57:42 +0300 (IDT) From: Baruch Siach To: Andy Gross , Bjorn Andersson , Felipe Balbi , Rob Herring Cc: Kathiravan T , Baruch Siach , Balaji Prakash J , Jack Pham , Thinh Nguyen , Robert Marko , linux-arm-msm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v3 4/4] arm64: qcom: ipq6018: add usb3 DT description Date: Tue, 31 Aug 2021 08:57:32 +0300 Message-Id: X-Mailer: git-send-email 2.33.0 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Kathiravan T Based on downstream codeaurora code. Tested (USB2 only) on IPQ6010 based hardware. Signed-off-by: Kathiravan T Signed-off-by: Baruch Siach --- v3: Add -ns unit suffix to snps,ref-clock-period (Rob Herring) --- arch/arm64/boot/dts/qcom/ipq6018.dtsi | 83 +++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) diff --git a/arch/arm64/boot/dts/qcom/ipq6018.dtsi b/arch/arm64/boot/dts/qcom/ipq6018.dtsi index 9fa5b028e4f3..8548d2cce619 100644 --- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi +++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi @@ -524,6 +524,89 @@ qrtr_requests { }; }; + ssphy_0: ssphy@78000 { + compatible = "qcom,ipq6018-qmp-usb3-phy"; + reg = <0x0 0x78000 0x0 0x1C4>; + #address-cells = <2>; + #size-cells = <2>; + #clock-cells = <1>; + ranges; + + clocks = <&gcc GCC_USB0_AUX_CLK>, + <&gcc GCC_USB0_PHY_CFG_AHB_CLK>, <&xo>; + clock-names = "aux", "cfg_ahb", "ref"; + + resets = <&gcc GCC_USB0_PHY_BCR>, + <&gcc GCC_USB3PHY_0_PHY_BCR>; + reset-names = "phy","common"; + status = "disabled"; + + usb0_ssphy: lane@78200 { + reg = <0x0 0x00078200 0x0 0x130>, /* Tx */ + <0x0 0x00078400 0x0 0x200>, /* Rx */ + <0x0 0x00078800 0x0 0x1F8>, /* PCS */ + <0x0 0x00078600 0x0 0x044>; /* PCS misc */ + #phy-cells = <0>; + clocks = <&gcc GCC_USB0_PIPE_CLK>; + clock-names = "pipe0"; + clock-output-names = "gcc_usb0_pipe_clk_src"; + }; + }; + + qusb_phy_0: qusb@79000 { + compatible = "qcom,ipq6018-qusb2-phy"; + reg = <0x0 0x079000 0x0 0x180>; + #phy-cells = <0>; + + clocks = <&gcc GCC_USB0_PHY_CFG_AHB_CLK>, + <&xo>; + clock-names = "cfg_ahb", "ref"; + + resets = <&gcc GCC_QUSB2_0_PHY_BCR>; + status = "disabled"; + }; + + usb3: usb3@8A00000 { + compatible = "qcom,ipq6018-dwc3", "qcom,dwc3"; + reg = <0x0 0x8AF8800 0x0 0x400>; + #address-cells = <2>; + #size-cells = <2>; + ranges; + + clocks = <&gcc GCC_SYS_NOC_USB0_AXI_CLK>, + <&gcc GCC_USB0_MASTER_CLK>, + <&gcc GCC_USB0_SLEEP_CLK>, + <&gcc GCC_USB0_MOCK_UTMI_CLK>; + clock-names = "sys_noc_axi", + "master", + "sleep", + "mock_utmi"; + + assigned-clocks = <&gcc GCC_SYS_NOC_USB0_AXI_CLK>, + <&gcc GCC_USB0_MASTER_CLK>, + <&gcc GCC_USB0_MOCK_UTMI_CLK>; + assigned-clock-rates = <133330000>, + <133330000>, + <20000000>; + + resets = <&gcc GCC_USB0_BCR>; + status = "disabled"; + + dwc_0: dwc3@8A00000 { + compatible = "snps,dwc3"; + reg = <0x0 0x8A00000 0x0 0xcd00>; + interrupts = ; + phys = <&qusb_phy_0>, <&usb0_ssphy>; + phy-names = "usb2-phy", "usb3-phy"; + tx-fifo-resize; + snps,is-utmi-l1-suspend; + snps,hird-threshold = /bits/ 8 <0x0>; + snps,dis_u2_susphy_quirk; + snps,dis_u3_susphy_quirk; + snps,ref-clock-period-ns = <0x32>; + dr_mode = "host"; + }; + }; }; wcss: wcss-smp2p {