From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from zg8tmja2lje4os4yms4ymjma.icoremail.net (zg8tmja2lje4os4yms4ymjma.icoremail.net [206.189.21.223]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DBD9D23A564; Thu, 16 Oct 2025 09:48:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=206.189.21.223 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760608112; cv=none; b=V3UEBVMqkzfV6qBTpIskaUse8YJzeLBocKn2r9BOuvdf3DddoA2jWclW1mU6PmSIexPCkqVmy76xjdKdAc9iHZOEQwmkQ8TMKGC+eX4PVwRNsZNrpTLY/ux/aA+Q0CN626gjqGKWHBAJwjuuPP/LQbnJ1I+FIkmnwFUNuuVzuis= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760608112; c=relaxed/simple; bh=RA34cpqVuqj2vO2KVbsTQXHKHww4Zz+7bA7fQuzFXA8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X9+KmABrp+5yHd2DrjOK/v7tW2kftXvjOjnLCgIknmcagRS5F5tXG0t1RavjzHaXOkjGPrnyikETBrzA36eBgWZG8FDb75AA6Y3t3187zChyITd+NMeMRzY/jvj1E9WRFFQY4pbH4E1EKPPvNo+yubjqWeOynF3UOTox3igT/Do= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com; spf=pass smtp.mailfrom=eswincomputing.com; arc=none smtp.client-ip=206.189.21.223 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=eswincomputing.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=eswincomputing.com Received: from E0006493LT.eswin.cn (unknown [10.127.112.153]) by app2 (Coremail) with SMTP id TQJkCgBX9pRfv_BoRBIOAQ--.48733S4; Thu, 16 Oct 2025 17:48:17 +0800 (CST) From: caohang@eswincomputing.com To: gregkh@linuxfoundation.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, Thinh.Nguyen@synopsys.com, p.zabel@pengutronix.de, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, devicetree@vger.kernel.org Cc: ningyu@eswincomputing.com, linmin@eswincomputing.com, pinkesh.vaghela@einfochips.com, Hang Cao , Senchuan Zhang Subject: [PATCH] usb: dwc3: eic7700: Add EIC7700 USB driver Date: Thu, 16 Oct 2025 17:48:12 +0800 Message-ID: <20251016094812.739-1-caohang@eswincomputing.com> X-Mailer: git-send-email 2.45.1.windows.1 In-Reply-To: <20251016094654.708-1-caohang@eswincomputing.com> References: <20251016094654.708-1-caohang@eswincomputing.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CM-TRANSID:TQJkCgBX9pRfv_BoRBIOAQ--.48733S4 X-Coremail-Antispam: 1UD129KBjvJXoWxAryrZr47XF4fZw4rXFyrWFg_yoWrXry5pa ykuFyYkrs5Grs3Kws3t3Z5AF1agrs7C3yUtryIk3Z2vr1qq34UGFykWr1rXasYkryxXF15 tr4ktFyxuF47Z3DanT9S1TB71UUUUU7qnTZGkaVYY2UrUUUUjbIjqfuFe4nvWSU5nxnvy2 9KBjDU0xBIdaVrnRJUUUBv14x267AKxVW8JVW5JwAFc2x0x2IEx4CE42xK8VAvwI8IcIk0 rVWrJVCq3wAFIxvE14AKwVWUJVWUGwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xGY2AK02 1l84ACjcxK6xIIjxv20xvE14v26w1j6s0DM28EF7xvwVC0I7IYx2IY6xkF7I0E14v26r4U JVWxJr1l84ACjcxK6I8E87Iv67AKxVW0oVCq3wA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gc CE3s1le2I262IYc4CY6c8Ij28IcVAaY2xG8wAqx4xG64xvF2IEw4CE5I8CrVC2j2WlYx0E 2Ix0cI8IcVAFwI0_Jrv_JF1lYx0Ex4A2jsIE14v26r1j6r4UMcvjeVCFs4IE7xkEbVWUJV W8JwACjcxG0xvY0x0EwIxGrwACjI8F5VA0II8E6IAqYI8I648v4I1lFIxGxcIEc7CjxVA2 Y2ka0xkIwI1lw4CEc2x0rVAKj4xxMxkF7I0En4kS14v26r1q6r43MxkIecxEwVCm-wCF04 k20xvY0x0EwIxGrwCFx2IqxVCFs4IE7xkEbVWUJVW8JwC20s026c02F40E14v26r1j6r18 MI8I3I0E7480Y4vE14v26r106r1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr4 1lIxAIcVC0I7IYx2IY67AKxVWUJVWUCwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1l IxAIcVCF04k26cxKx2IYs7xG6r1j6r1xMIIF0xvEx4A2jsIE14v26r1j6r4UMIIF0xvEx4 A2jsIEc7CjxVAFwI0_Gr0_Gr1UYxBIdaVFxhVjvjDU0xZFpf9x0JUHCJQUUUUU= X-CM-SenderInfo: xfdrxt1qj6v25zlqu0xpsx3x1qjou0bp/ From: Hang Cao Add the eic7700 usb driver, which is responsible for identifying,configuring and connecting usb devices. Signed-off-by: Senchuan Zhang Signed-off-by: Hang Cao --- drivers/usb/dwc3/dwc3-generic-plat.c | 58 ++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-generic-plat.c b/drivers/usb/dwc3/dwc3-generic-plat.c index d96b20570002..98448bc434a5 100644 --- a/drivers/usb/dwc3/dwc3-generic-plat.c +++ b/drivers/usb/dwc3/dwc3-generic-plat.c @@ -10,8 +10,16 @@ #include #include #include +#include +#include #include "glue.h" +#define EIC7700_HSP_BUS_FILTER_EN BIT(0) +#define EIC7700_HSP_BUS_CLKEN_GM BIT(9) +#define EIC7700_HSP_BUS_CLKEN_GS BIT(16) +#define EIC7700_HSP_AXI_LP_XM_CSYSREQ BIT(0) +#define EIC7700_HSP_AXI_LP_XS_CSYSREQ BIT(16) + struct dwc3_generic { struct device *dev; struct dwc3 dwc; @@ -20,8 +28,41 @@ struct dwc3_generic { struct reset_control *resets; }; +struct dwc3_generic_match_data { + int (*init_ops)(struct device *dev); +}; + #define to_dwc3_generic(d) container_of((d), struct dwc3_generic, dwc) +static int eic7700_dwc3_bus_init(struct device *dev) +{ + struct regmap *regmap; + u32 hsp_usb_axi_lp; + u32 hsp_usb_bus; + u32 args[2]; + u32 val; + + regmap = syscon_regmap_lookup_by_phandle_args(dev->of_node, + "eswin,hsp-sp-csr", + ARRAY_SIZE(args), args); + if (IS_ERR(regmap)) { + dev_err(dev, "No hsp-sp-csr phandle specified\n"); + return PTR_ERR(regmap); + } + + hsp_usb_bus = args[0]; + hsp_usb_axi_lp = args[1]; + + regmap_read(regmap, hsp_usb_bus, &val); + regmap_write(regmap, hsp_usb_bus, val | EIC7700_HSP_BUS_FILTER_EN | + EIC7700_HSP_BUS_CLKEN_GM | EIC7700_HSP_BUS_CLKEN_GS); + + regmap_write(regmap, hsp_usb_axi_lp, EIC7700_HSP_AXI_LP_XM_CSYSREQ | + EIC7700_HSP_AXI_LP_XS_CSYSREQ); + + return 0; +} + static void dwc3_generic_reset_control_assert(void *data) { reset_control_assert(data); @@ -29,6 +70,7 @@ static void dwc3_generic_reset_control_assert(void *data) static int dwc3_generic_probe(struct platform_device *pdev) { + const struct dwc3_generic_match_data *data; struct dwc3_probe_data probe_data = {}; struct device *dev = &pdev->dev; struct dwc3_generic *dwc3g; @@ -75,6 +117,14 @@ static int dwc3_generic_probe(struct platform_device *pdev) probe_data.dwc = &dwc3g->dwc; probe_data.res = res; probe_data.ignore_clocks_and_resets = true; + + data = of_device_get_match_data(dev); + if (data && data->init_ops) { + ret = data->init_ops(dev); + if (ret < 0) + return dev_err_probe(dev, ret, "failed to init ops\n"); + } + ret = dwc3_core_probe(&probe_data); if (ret) return dev_err_probe(dev, ret, "failed to register DWC3 Core\n"); @@ -139,6 +189,10 @@ static int dwc3_generic_runtime_idle(struct device *dev) return dwc3_runtime_idle(dev_get_drvdata(dev)); } +static const struct dwc3_generic_match_data eic7700_dwc3_data = { + .init_ops = eic7700_dwc3_bus_init, +}; + static const struct dev_pm_ops dwc3_generic_dev_pm_ops = { SYSTEM_SLEEP_PM_OPS(dwc3_generic_suspend, dwc3_generic_resume) RUNTIME_PM_OPS(dwc3_generic_runtime_suspend, dwc3_generic_runtime_resume, @@ -147,6 +201,10 @@ static const struct dev_pm_ops dwc3_generic_dev_pm_ops = { static const struct of_device_id dwc3_generic_of_match[] = { { .compatible = "spacemit,k1-dwc3", }, + { + .compatible = "eswin,eic7700-dwc3", + .data = &eic7700_dwc3_data, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, dwc3_generic_of_match); -- 2.34.1