From patchwork Thu Aug 8 07:11:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herve Codina X-Patchwork-Id: 13757049 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 64D6CC3DA4A for ; Thu, 8 Aug 2024 07:30:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=qhTeQjFFrgyyEBB/vjj0ndtfSFCTyBhsv6uo4yMAh0Y=; b=Qx//stFqoWjDVjEu2C/RuRfQKv VHNlNsI4KmJAvWvk86jICnXsDyEXOH3oosTiAy/ZNkonY4h+uRoPs7tVJc7HFfpVVCPiIa9ubjhzN 8ht77NezndtsYQmqcRTEoCEF/ehdhHCEi0XtXfKebetD5/z6kem7ifzobcT3OOyrtSeZfkaj5UDx7 p3zCZJ5G8TdWK6yMzYNNwUDP6AZEajsNM5Ufu/GrjuT1q3l2mhx+WXrh9B/k+8KQlJKL7xxfIqnkC t88BxZWBzOW2+tlLFWEZAbF4UErKX0uc2mpB6CWjfkwkyCRh7ySFwifE96MkrModR6wBiXbOPIUPU yY7sWlLw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbxba-00000007QB0-1O81; Thu, 08 Aug 2024 07:30:38 +0000 Received: from relay6-d.mail.gandi.net ([217.70.183.198]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1sbxJf-00000007KFR-01lJ for linux-arm-kernel@lists.infradead.org; Thu, 08 Aug 2024 07:12:09 +0000 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> MIME-Version: 1.0 X-GND-Sasl: herve.codina@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240808_001207_377925_4800BBF9 X-CRM114-Status: GOOD ( 16.13 ) 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 *priv) return IRQ_HANDLED; } +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 = 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 = 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 = request_firmware(&fw, filename, qmc->dev); + if (ret) { + dev_err(qmc->dev, "Failed to request firmware %s\n", filename); + return ret; + } + + qe_fw = (const struct qe_firmware *)fw->data; + + if (fw->size < sizeof(qe_fw->header) || + be32_to_cpu(qe_fw->header.length) != fw->size) { + dev_err(qmc->dev, "Invalid firmware %s\n", filename); + ret = -EINVAL; + goto end; + } + + ret = qe_upload_firmware(qe_fw); + if (ret) { + dev_err(qmc->dev, "Failed to load firmware %s\n", filename); + goto end; + } + + ret = 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; + if (qmc_is_qe(qmc)) { + ret = qmc_qe_soft_qmc_init(qmc, np); + if (ret) + return ret; + } + /* Parse channels informationss */ ret = qmc_of_parse_chans(qmc, np); if (ret)