From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 243DDCEFD0C for ; Tue, 6 Jan 2026 22:17:43 +0000 (UTC) Received: from h2850616.stratoserver.net (localhost [IPv6:::1]) by phobos.denx.de (Postfix) with ESMTP id 942E683B32; Tue, 6 Jan 2026 23:17:41 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=u-boot-bounces@lists.denx.de Authentication-Results: phobos.denx.de; dkim=pass (1024-bit key; unprotected) header.d=linux.dev header.i=@linux.dev header.b="GXE7Mgcg"; dkim-atps=neutral Received: by phobos.denx.de (Postfix, from userid 109) id 1FE4D83B64; Tue, 6 Jan 2026 23:17:40 +0100 (CET) Received: from out-174.mta0.migadu.com (out-174.mta0.migadu.com [91.218.175.174]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by phobos.denx.de (Postfix) with ESMTPS id 2A92683942 for ; Tue, 6 Jan 2026 23:17:38 +0100 (CET) Authentication-Results: phobos.denx.de; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: phobos.denx.de; spf=pass smtp.mailfrom=sean.anderson@linux.dev X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1767737857; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=QypTrw6Ba2uekUxGqIcz3bMva9+vzHchkZvYZXAokMs=; b=GXE7MgcgrN06kQpQElqv1yGrj0rMjQQ1MVNNpN6x1Ikhhd6YuBzOPKtw7XEm9GrwWWHRyi bVURxVK7/QqbCbtNx9P7c72wc9LJGeOwSg4ye6q42psCKjxZf9bzd6kJH1AAmlPOpMnkKu znduRMewCh+peAH+1soeFAFMXe8O8Gg= From: Sean Anderson To: Marek Vasut , u-boot@lists.denx.de Cc: Michal Simek , Sean Anderson Subject: [PATCH] usb: dwc3: Initialize Xilinx glue registers Date: Tue, 6 Jan 2026 17:17:28 -0500 Message-Id: <20260106221728.738219-1-sean.anderson@linux.dev> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.39 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean These registers may have been initialized by SPL/FSBL, but program them in case they have not. If they are left at their default values, the controller will never exit reset. Signed-off-by: Sean Anderson --- drivers/usb/dwc3/dwc3-generic.c | 32 ++++++++++++++++++++++++++------ drivers/usb/dwc3/dwc3-generic.h | 2 ++ 2 files changed, 28 insertions(+), 6 deletions(-) diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c index c09014aec60..ce896db9532 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -501,6 +501,27 @@ struct dwc3_glue_ops rk_ops = { .glue_get_ctrl_dev = dwc3_rk_glue_get_ctrl_dev, }; +void dwc3_xlnx_glue_configure(struct udevice *dev, int index, + enum usb_dr_mode mode) +{ +/* USB glue registers */ +#define USB3_FPD_PIPE_CLK 0x7c +#define USB3_FPD_POWER_PRSNT 0x80 + struct dwc3_glue_data *glue = dev_get_plat(dev); + void *base = map_physmem(glue->regs, 0x10000, MAP_NOCACHE); + + if (generic_phy_valid(&glue->phy)) { + writel(0, base + USB3_FPD_PIPE_CLK); + writel(1, base + USB3_FPD_POWER_PRSNT); + } else { + writel(1, base + USB3_FPD_PIPE_CLK); + } +} + +struct dwc3_glue_ops xlnx_ops = { + .glue_configure = dwc3_xlnx_glue_configure, +}; + static int dwc3_glue_bind_common(struct udevice *parent, ofnode node) { const char *name = ofnode_get_name(node); @@ -621,11 +642,10 @@ int dwc3_glue_probe(struct udevice *dev) struct udevice *child = NULL; int index = 0; int ret; - struct phy phy; - ret = generic_phy_get_by_name(dev, "usb3-phy", &phy); + ret = generic_phy_get_by_name(dev, "usb3-phy", &glue->phy); if (!ret) { - ret = generic_phy_init(&phy); + ret = generic_phy_init(&glue->phy); if (ret) return ret; } else if (ret != -ENOENT && ret != -ENODATA) { @@ -643,8 +663,8 @@ int dwc3_glue_probe(struct udevice *dev) if (ret) return ret; - if (generic_phy_valid(&phy)) { - ret = generic_phy_power_on(&phy); + if (generic_phy_valid(&glue->phy)) { + ret = generic_phy_power_on(&glue->phy); if (ret) return ret; } @@ -690,7 +710,7 @@ int dwc3_glue_remove(struct udevice *dev) } static const struct udevice_id dwc3_glue_ids[] = { - { .compatible = "xlnx,zynqmp-dwc3" }, + { .compatible = "xlnx,zynqmp-dwc3", .data = (ulong)&xlnx_ops }, { .compatible = "xlnx,versal-dwc3" }, { .compatible = "ti,keystone-dwc3"}, { .compatible = "ti,dwc3", .data = (ulong)&ti_ops }, diff --git a/drivers/usb/dwc3/dwc3-generic.h b/drivers/usb/dwc3/dwc3-generic.h index 40902c8923f..13f6391cae8 100644 --- a/drivers/usb/dwc3/dwc3-generic.h +++ b/drivers/usb/dwc3/dwc3-generic.h @@ -10,12 +10,14 @@ #define __DRIVERS_USB_DWC3_GENERIC_H #include +#include #include #include struct dwc3_glue_data { struct clk_bulk clks; struct reset_ctl_bulk resets; + struct phy phy; fdt_addr_t regs; fdt_size_t size; }; -- 2.35.1.1320.gc452695387.dirty base-commit: beab3fe49e1e9209dd32fe2791e7ac706038460f branch: dwc3_xlnx_glue