From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 864AE19478; Thu, 1 Aug 2024 07:55:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722498938; cv=none; b=Xiaw3Lc3vzXDkPSQMNsAVR28X5KwygH4pU/Pet4oo2CyCyKSE0m51ftpcWPYULTBkFmJUSYl+iKjA72idsvj0q1iAu8lp5tVwuUUGNaNxgmZp1cuGgd322pTQsjgVix4Ch39Z9u5C1LqNFpMX7vyfzb8+q8AfYEB1JBMhi7O2UQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722498938; c=relaxed/simple; bh=oHsKddBumXQe2GlEI9c6/XDB5ivTgd7edUCnfNg4qBk=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=QNbgP5ynXfyXDRYEFOxzbOhOQMxFuFVWcmK02J+MSrtyIv/GxnKjpYxtqUPRjrGveUVZDGuaM/wHFf6wRPsNpqpeF4xok+OL6q3xYpxxDDGF0KhD2nkDXNoZ7qb6/tw6pf1H1KBW+v0zS0rC2AMrQwT162zwJKi9xf2W/GavZkY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=IrUME9yR; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="IrUME9yR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0AD6AC4AF0A; Thu, 1 Aug 2024 07:55:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1722498938; bh=oHsKddBumXQe2GlEI9c6/XDB5ivTgd7edUCnfNg4qBk=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=IrUME9yRh9ELjslkXcV2vx2VPCi3ogRZYL+VXDQqHPPXwbuaKlgk5xAfS7HIbaoqt VvTL/uicSYtnZQQ9Nq93azzE83oJ5P1tcUKrnRznWnvCCsgIhAOH29v6njIv34mKIe dVC9DcH1+XE3v6eb3oHYYbpVoJrNveu9WZcvBk2maWb9BLkzmT5B1kC1CESQWN9h/V xJyMs4siR09MFcO3adU8VmrUiIcYG+0RSX+HMIHWGS9Ci1mFeBVAAkI/JrPJcRTh5T lFE7/FPhrvBWa3HtxYk1EhUpdQ/w+gEHhiv6OcDxPuLghdbTF/DSDF2VETWqo6Zu6d Jthl5mwcUxZZA== Message-ID: <1fcace72-a886-49bc-a30a-fde5a1de7a25@kernel.org> Date: Thu, 1 Aug 2024 09:55:31 +0200 Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 0/8] Enable EUD on Qualcomm sm8450 SoC To: Caleb Connolly , Elson Roy Serrao , andersson@kernel.org, konrad.dybcio@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, gregkh@linuxfoundation.org Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org References: <20240730222439.3469-1-quic_eserrao@quicinc.com> <023d4ea8-635d-435f-bae2-87284f70123b@linaro.org> From: Krzysztof Kozlowski Content-Language: en-US Autocrypt: addr=krzk@kernel.org; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 31/07/2024 13:13, Caleb Connolly wrote: > Hi, > > On 31/07/2024 00:24, Elson Roy Serrao wrote: >> The Embedded USB Debugger (EUD) is a mini High-Speed USB on-chip hub to >> support the USB-based debug and trace capabilities on Qualcomm devices. >> The current implementation lacks in below aspects that are needed for >> proper EUD functionality. >> >> 1.) HS-Phy control: EUD being a HS hub needs HS-Phy support for it's >> operation. Hence EUD module should enable/disable HS-phy >> accordingly. >> >> 2.) Proper routing of USB role switch notifications: EUD hub is physically >> present in between the USB connector and the USB controller. So the >> usb role switch notifications originating from the connector should >> route through EUD. EUD also relies on role switch notifications to >> communicate with the USB, regarding EUD attach/detach events. >> >> This series aims at implementing the above aspects to enable EUD on >> Qualcomm sm8450 SoC. > > Are there any plans to make this feature available for folks outside of > Qualcomm / an NDA? > > There is an openOCD fork on CodeLinaro but it still requires some > proprietary library which is only available to folks with a quicinc > email as I understand it. Are you saying that there is no fully open and available user-space which is necessary to use EUD? Best regards, Krzysztof