From nobody Tue Dec 16 09:09:02 2025 Received: from relay6-d.mail.gandi.net (relay6-d.mail.gandi.net [217.70.183.198]) (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 CA01018FC88; Thu, 8 Aug 2024 07:12:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.198 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723101128; cv=none; b=V/VsQr+PI5QmWoq1KVRKzDvrheGBpdt2fNfoTqZRcka4nBmCDw3TX0KyhDJkp6dMSNI6Tbmac68HFtnuKzxO7iOwOfiZqt/MWn7wG4uiwIdbsRC0UZ6eXKzawfc89qWHn9g8o6bfKoQYPLi++hpNCaO6AVylsjSwW1Otw4SfBRs= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723101128; c=relaxed/simple; bh=1URSoTxl3MWQkIrQVad7ptbdWpjD1dNAjVS+N8fSBOA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=P17UAPAMwk998txqy5Yncz2iNQIW/VFyY+6Chrsip8dtIBqc/9qOcuzIGswwRxw5CpAeEme7LiIBaKMLZHdN8VdojVfia9ptWkmIsc8d+/4d88O49AH7/0XMDfnp02g2AltatK4UUDB9G5cfnHHnf6G0vsMZWNN3O8n1QVxDyXE= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=jmr0MYli; arc=none smtp.client-ip=217.70.183.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="jmr0MYli" Received: by mail.gandi.net (Postfix) with ESMTPA id E7346C000C; Thu, 8 Aug 2024 07:12:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723101125; 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: in-reply-to:in-reply-to:references:references; bh=qhTeQjFFrgyyEBB/vjj0ndtfSFCTyBhsv6uo4yMAh0Y=; b=jmr0MYli9sbNQDvQYczkA/Hd3gJsK1Hd3Raafmpgh3CQ+OGJqEsqtjY2c96ZMhkOkD/Fal A0TVWJPuH9Gx6cYdBawhndvygWDdC4bJKXBQvboyboZ5TLewxYGO3Tw0p8DXqd+oXhr+pZ J6j3gQS38wZltqiFYLxS9HTHpIPozTTjpmFpBUsY40Scml7gPm2I7qtu1/jaVM6ZyUvHQY 006VoipCz9bvNgpVF/Sw/vnSTjpRdwlZte8W/iyiz9DhY6da8cmiztjkONNVT7xwINKlWX o7nY10inn7ULuB+sIq0VhKkYSGzGBrzCrJVQyvl/ly+kWWMvbd7pfX413hQfGQ== From: Herve Codina To: Herve Codina , Christophe Leroy , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Qiang Zhao , Li Yang , Mark Brown Cc: linuxppc-dev@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Petazzoni Subject: [PATCH v2 35/36] soc: fsl: cpm1: qmc: Handle QUICC Engine (QE) soft-qmc firmware Date: Thu, 8 Aug 2024 09:11:28 +0200 Message-ID: <20240808071132.149251-36-herve.codina@bootlin.com> X-Mailer: git-send-email 2.45.0 In-Reply-To: <20240808071132.149251-1-herve.codina@bootlin.com> References: <20240808071132.149251-1-herve.codina@bootlin.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-GND-Sasl: herve.codina@bootlin.com Content-Type: text/plain; charset="utf-8" The QUICC Engine (QE) QMC can use a firmware to have the QMC working in 'soft-qmc' mode. Handle this optional 'soft-qmc' firmware. Signed-off-by: Herve Codina Reviewed-by: Christophe Leroy --- drivers/soc/fsl/qe/qmc.c | 67 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 67 insertions(+) diff --git a/drivers/soc/fsl/qe/qmc.c b/drivers/soc/fsl/qe/qmc.c index b3a9534441ee..3dffebb48b0d 100644 --- a/drivers/soc/fsl/qe/qmc.c +++ b/drivers/soc/fsl/qe/qmc.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -1649,6 +1650,66 @@ static irqreturn_t qmc_irq_handler(int irq, void *pr= iv) return IRQ_HANDLED; } =20 +static int qmc_qe_soft_qmc_init(struct qmc *qmc, struct device_node *np) +{ + struct qe_firmware_info *qe_fw_info; + const struct qe_firmware *qe_fw; + const struct firmware *fw; + const char *filename; + int ret; + + ret =3D of_property_read_string(np, "fsl,soft-qmc", &filename); + switch (ret) { + case 0: + break; + case -EINVAL: + /* fsl,soft-qmc property not set -> Simply do nothing */ + return 0; + default: + dev_err(qmc->dev, "%pOF: failed to read fsl,soft-qmc\n", + np); + return ret; + } + + qe_fw_info =3D qe_get_firmware_info(); + if (qe_fw_info) { + if (!strstr(qe_fw_info->id, "Soft-QMC")) { + dev_err(qmc->dev, "Another Firmware is already loaded\n"); + return -EALREADY; + } + dev_info(qmc->dev, "Firmware already loaded\n"); + return 0; + } + + dev_info(qmc->dev, "Using firmware %s\n", filename); + + ret =3D request_firmware(&fw, filename, qmc->dev); + if (ret) { + dev_err(qmc->dev, "Failed to request firmware %s\n", filename); + return ret; + } + + qe_fw =3D (const struct qe_firmware *)fw->data; + + if (fw->size < sizeof(qe_fw->header) || + be32_to_cpu(qe_fw->header.length) !=3D fw->size) { + dev_err(qmc->dev, "Invalid firmware %s\n", filename); + ret =3D -EINVAL; + goto end; + } + + ret =3D qe_upload_firmware(qe_fw); + if (ret) { + dev_err(qmc->dev, "Failed to load firmware %s\n", filename); + goto end; + } + + ret =3D 0; +end: + release_firmware(fw); + return ret; +} + static int qmc_cpm1_init_resources(struct qmc *qmc, struct platform_device= *pdev) { struct resource *res; @@ -1855,6 +1916,12 @@ static int qmc_probe(struct platform_device *pdev) if (ret) return ret; =20 + if (qmc_is_qe(qmc)) { + ret =3D qmc_qe_soft_qmc_init(qmc, np); + if (ret) + return ret; + } + /* Parse channels informationss */ ret =3D qmc_of_parse_chans(qmc, np); if (ret) --=20 2.45.0