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[31.10.206.125]) by smtp.gmail.com with ESMTPSA id tj13-20020a170907c24d00b00a38a705121csm2212012ejc.47.2024.02.14.03.27.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 03:27:11 -0800 (PST) From: Andrejs Cainikovs To: b-liu@ti.com Cc: afd@ti.com, conor+dt@kernel.org, conor@kernel.org, devicetree@vger.kernel.org, kristo@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, nm@ti.com, r-gunasekaran@ti.com, robh+dt@kernel.org, rogerq@kernel.org, srk@ti.com, vigneshr@ti.com, Andrejs Cainikovs Subject: Re: [PATCH v3 5/5] usb: dwc3-am62: add workaround for Errata i2409 Date: Wed, 14 Feb 2024 12:27:08 +0100 Message-Id: <20240214112708.157743-1-andrejs.cainikovs@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240201183522.ssj553rwefr2wuqi@iaqt7> References: <20240201183522.ssj553rwefr2wuqi@iaqt7> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240214_032714_690147_D3460ECF X-CRM114-Status: UNSURE ( 7.50 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org > All AM62 devices have Errata i2409 [1] due to which > USB2 PHY may lock up due to short suspend. > > Workaround involves setting bit 5 and 4 PLL_REG12 > in PHY2 register space after USB controller is brought > out of LPSC reset but before controller initialization. > > Handle this workaround. Tested-by: Andrejs Cainikovs You have requested [1] to check whether this patch fixes issues I observed, and I can confirm it does. [1]: https://lore.kernel.org/all/2629cd30-23aa-4f03-8452-ae13297fd6b6@kernel.org/ _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ej1-f49.google.com (mail-ej1-f49.google.com [209.85.218.49]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2B24318633; Wed, 14 Feb 2024 11:27:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.218.49 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707910035; cv=none; b=h7mwgMpTHgcnxOR4SZGmQ90M9SMLpACkQ43zEAOLQagHyp1SBcN+Vzm7482xoZcQo4uyAo8GtT2L7hOinAOjsoAsUDQURnIzn2rwrV+nHWkZYqE5fVOS/fvO/0jzeBgAbShmcjnWtrrKuYC3vb/asCEGMKRTHMRa3oUwJ4bOpnU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707910035; c=relaxed/simple; bh=Y9ZOz9wfhoWTc74GBWwODS9bl4h4+TQW+6+1SJl1ulU=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=SMewTqY2Lf3arVXDt/CrAH0BePP3WscSoAGHeUU910zmjDF44VaiucNWXjs2kdc9wCnYaOQoVC3blX7D+/z5oSSZ8ZQsO1mHY5CcdJAzuAV1acmhYmeRETfd3cBBACRzfzrZOizbvzdP4MDX39czmQN0iTRAVs27P6prmZv2tDk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Albkkf6m; arc=none smtp.client-ip=209.85.218.49 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Albkkf6m" Received: by mail-ej1-f49.google.com with SMTP id a640c23a62f3a-a3122b70439so686974866b.3; Wed, 14 Feb 2024 03:27:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1707910032; x=1708514832; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=RvnuYy0h15lFkU1OUHWfDosbzwhtBQMjSlFdPWysW7Q=; b=Albkkf6m8knYWt3o0diqeYVjt4/P5VszWL4OGG2KcoZxsh/mo7cjdz2yhaxpBWq7sx wrz1QGvA/rg7D2Z/04iG4QogTwTsWq6VfCt+64ci8OH5jnQa3b3UauSVIB7o4sI9kDWc 0zLt9ldFhzoaaML1jZ6S2VC4gEqolWPYvwpNazNE1mQcwvGGkaGavwnnBVpLsgr4Czz5 /DM4EL9N/nQKalYUMy56VPK1+M/9O2LWiM7mHlYgchpyUr67k6RyXMPrBC83EsJGL1ED uHpRNarcDZT7jHlgK/xxW/OhO/Y+voHYvRItS304c9zE6pyMFSfM3P8XxWlrBEuuOvXD OWnQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707910032; x=1708514832; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=RvnuYy0h15lFkU1OUHWfDosbzwhtBQMjSlFdPWysW7Q=; b=QLl+XOUezRYOMJZPL/sEoZUADDSls+OQi88ZCgGIRTUx1wdcHEYvbzzg3h4vuLtriE zn2q5bbgALldiXeZKuQ8Pct661APL0oVVbw6+YM/smuInLCKgPrM2oVutdtI/P4F7iJh +Iz6sm8GWw/fK7xOL9zXIPRJO6ddNlxqdkzoR4QDvfuL0qO0EWUiEE/7a1i8eWtgDekw GVQoE0NgnYYjJOJQyQKLLKCV52ew2aRY0lYDhxXS4h1nE62YR2WF3AuNq4MjhzAXzxrx N1FzjDvy8MCClR5am3IsW2r2NlpnhpDE08o9gVbuEs92i8muYaUlPSL+jbjOvO6H6l6C VoKg== X-Forwarded-Encrypted: i=1; AJvYcCXlsgJvH71Y7MSm28tmZEof90EURo1KrkEA7JrwW1PUkzqcx9r4l0xo24NYBe2H3x06itowQ3hwh7YK9v0J9hF7cZ/qMQuyMDR9OXhgDTBxU/LVkwAtHfL0mYE1FSXo5rkJPI0BVi+eeg== X-Gm-Message-State: AOJu0YzuvcnPGOdMjwPeoEZfA6CzBMrCOK9ECxyur97icAzmOAXXhDoX JbnW+bwX4WIFhj/FoqkODBlN3Ckx+CSHF96ht3vnHBKBd+V+5+/X X-Google-Smtp-Source: AGHT+IEyA8IghOjt0/o24CNEtlvU8Q8EpuH4t5P+6Twv6iElYcBmi65oltjzzBJ6k3JW8qLE3O5n2g== X-Received: by 2002:a17:906:459:b0:a3c:91e:a7d7 with SMTP id e25-20020a170906045900b00a3c091ea7d7mr1681566eja.60.1707910032171; Wed, 14 Feb 2024 03:27:12 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCUHvmngmL9lPnXkipC4/DtY3Zg1e18hVX6Q1AxtWOfRKQdeZbYHMAwFpb8FW172+NkrE2Q/gHTQyRj/stlBsuV58V60mppe1beHyb2CC64xj4vW4XPds60ERDgEI98yJ3y/AehXn4o8D3t4m/MNSFdXwvzP7mAkX9MG7PQpMRsUJWNuVr1lyLX64Tytn/Q1VstX7L0rW6QMiZOd0IT3THzoYpSmynF6WVC2ygUs6XgbmzEHIHIHX3VlxzCBHbDWFw6L+t9HGAFbLUoJE8Tyz3bePOhiqk3TbsBxCjdsuDOuEdJljjMBYAgbaGx4PzqKhRUrCoLOj5Ps8qgGcUECE3QbwaNoUjhgLihcSlluhW5elIEXHNKcFGVSnWCK3U5/yfYKM/RcGdM2r10cwkdHgICsTu6prJ1dgU8H+q0sOI4AyuVyNT5YjviMGxeh8feRdT4pyovufik3xZG25v4SIXFeArPnjLaR4etwTfTFGkw/ Received: from andrejs-nb.. 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[31.10.206.125]) by smtp.gmail.com with ESMTPSA id tj13-20020a170907c24d00b00a38a705121csm2212012ejc.47.2024.02.14.03.27.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 14 Feb 2024 03:27:11 -0800 (PST) From: Andrejs Cainikovs To: b-liu@ti.com Cc: afd@ti.com, conor+dt@kernel.org, conor@kernel.org, devicetree@vger.kernel.org, kristo@kernel.org, krzysztof.kozlowski+dt@linaro.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, nm@ti.com, r-gunasekaran@ti.com, robh+dt@kernel.org, rogerq@kernel.org, srk@ti.com, vigneshr@ti.com, Andrejs Cainikovs Subject: Re: [PATCH v3 5/5] usb: dwc3-am62: add workaround for Errata i2409 Date: Wed, 14 Feb 2024 12:27:08 +0100 Message-Id: <20240214112708.157743-1-andrejs.cainikovs@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240201183522.ssj553rwefr2wuqi@iaqt7> References: <20240201183522.ssj553rwefr2wuqi@iaqt7> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit > All AM62 devices have Errata i2409 [1] due to which > USB2 PHY may lock up due to short suspend. > > Workaround involves setting bit 5 and 4 PLL_REG12 > in PHY2 register space after USB controller is brought > out of LPSC reset but before controller initialization. > > Handle this workaround. Tested-by: Andrejs Cainikovs You have requested [1] to check whether this patch fixes issues I observed, and I can confirm it does. [1]: https://lore.kernel.org/all/2629cd30-23aa-4f03-8452-ae13297fd6b6@kernel.org/