From patchwork Wed Apr 26 09:12:05 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tinghan Shen X-Patchwork-Id: 13224288 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9C5BEC7618E for ; Wed, 26 Apr 2023 09:12:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240090AbjDZJMs (ORCPT ); Wed, 26 Apr 2023 05:12:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34656 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S239998AbjDZJMk (ORCPT ); Wed, 26 Apr 2023 05:12:40 -0400 Received: from mailgw02.mediatek.com (unknown [210.61.82.184]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C2C6E449D; Wed, 26 Apr 2023 02:12:36 -0700 (PDT) X-UUID: 75c9b99ee41211edb6b9f13eb10bd0fe-20230426 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=SZjevMFr3hN/VIx2NgbZTpSz9vi5eily31NZvHvjAig=; b=d/0MolekIkgFlmOmm5bJ2M+OSdPC9FkFyNk4pqDESxM3fzXAW3VpfN/vThpze4z6Y1vW4xCi3SRW1oRP3Pt+rqMQj0RA1q1nE/5McTeecgG9zg+WO7V9k1LMKny5P2fU7gNp03I5HP5lH1kaUCIhjZsw/enkTRS6mVG3QOkssrc=; X-CID-P-RULE: Release_Ham X-CID-O-INFO: VERSION:1.1.22,REQID:8ff7d942-7733-4dff-9359-1927aa1ac090,IP:0,U RL:0,TC:0,Content:-25,EDM:0,RT:0,SF:0,FILE:0,BULK:0,RULE:Release_Ham,ACTIO N:release,TS:-25 X-CID-META: VersionHash:120426c,CLOUDID:72bd34ec-db6f-41fe-8b83-13fe7ed1ef52,B ulkID:nil,BulkQuantity:0,Recheck:0,SF:102,TC:nil,Content:0,EDM:-3,IP:nil,U RL:0,File:nil,Bulk:nil,QS:nil,BEC:nil,COL:0,OSI:0,OSA:0,AV:0 X-CID-BVR: 0 X-CID-BAS: 0,_,0,_ X-UUID: 75c9b99ee41211edb6b9f13eb10bd0fe-20230426 Received: from mtkmbs11n1.mediatek.inc [(172.21.101.185)] by mailgw02.mediatek.com (envelope-from ) (Generic MTA with TLSv1.2 ECDHE-RSA-AES256-GCM-SHA384 256/256) with ESMTP id 1083764236; Wed, 26 Apr 2023 17:12:25 +0800 Received: from mtkmbs11n1.mediatek.inc (172.21.101.185) by mtkmbs13n1.mediatek.inc (172.21.101.193) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.25; Wed, 26 Apr 2023 17:12:24 +0800 Received: from mtksdccf07.mediatek.inc (172.21.84.99) by mtkmbs11n1.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.2.1118.25 via Frontend Transport; Wed, 26 Apr 2023 17:12:24 +0800 From: Tinghan Shen To: Bjorn Andersson , Mathieu Poirier , Rob Herring , Krzysztof Kozlowski , Matthias Brugger , AngeloGioacchino Del Regno , Tinghan Shen CC: , , , , , Subject: [PATCH v10 05/11] remoteproc: mediatek: Extract remoteproc initialization flow Date: Wed, 26 Apr 2023 17:12:05 +0800 Message-ID: <20230426091211.21557-6-tinghan.shen@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20230426091211.21557-1-tinghan.shen@mediatek.com> References: <20230426091211.21557-1-tinghan.shen@mediatek.com> MIME-Version: 1.0 X-MTK: N Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org This is the preparation for probing multi-core SCP. The remoteproc initialization flow is similar on cores and is reused to avoid redundant code. The registers of config and l1tcm are shared for multi-core SCP. Reuse the mapped addresses for all cores. Signed-off-by: Tinghan Shen Reviewed-by: AngeloGioacchino Del Regno --- drivers/remoteproc/mtk_scp.c | 69 ++++++++++++++++++++++++++---------- 1 file changed, 50 insertions(+), 19 deletions(-) diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c index 2bf66b1a8d80..5e4982f4d5dc 100644 --- a/drivers/remoteproc/mtk_scp.c +++ b/drivers/remoteproc/mtk_scp.c @@ -23,6 +23,13 @@ #define MAX_CODE_SIZE 0x500000 #define SECTION_NAME_IPI_BUFFER ".ipi_buffer" +struct mtk_scp_of_cluster { + void __iomem *reg_base; + void __iomem *l1tcm_base; + size_t l1tcm_size; + phys_addr_t l1tcm_phys; +}; + /** * scp_get() - get a reference to SCP. * @@ -855,10 +862,11 @@ static void scp_remove_rpmsg_subdev(struct mtk_scp *scp) } } -static int scp_probe(struct platform_device *pdev) +static int scp_rproc_init(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct device_node *np = dev->of_node; + struct mtk_scp_of_cluster *of_cluster = platform_get_drvdata(pdev); struct mtk_scp *scp; struct rproc *rproc; struct resource *res; @@ -879,6 +887,11 @@ static int scp_probe(struct platform_device *pdev) scp->data = of_device_get_match_data(dev); platform_set_drvdata(pdev, scp); + scp->reg_base = of_cluster->reg_base; + scp->l1tcm_base = of_cluster->l1tcm_base; + scp->l1tcm_size = of_cluster->l1tcm_size; + scp->l1tcm_phys = of_cluster->l1tcm_phys; + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sram"); scp->sram_base = devm_ioremap_resource(dev, res); if (IS_ERR(scp->sram_base)) @@ -888,24 +901,6 @@ static int scp_probe(struct platform_device *pdev) scp->sram_size = resource_size(res); scp->sram_phys = res->start; - /* l1tcm is an optional memory region */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "l1tcm"); - scp->l1tcm_base = devm_ioremap_resource(dev, res); - if (IS_ERR(scp->l1tcm_base)) { - ret = PTR_ERR(scp->l1tcm_base); - if (ret != -EINVAL) { - return dev_err_probe(dev, ret, "Failed to map l1tcm memory\n"); - } - } else { - scp->l1tcm_size = resource_size(res); - scp->l1tcm_phys = res->start; - } - - scp->reg_base = devm_platform_ioremap_resource_byname(pdev, "cfg"); - if (IS_ERR(scp->reg_base)) - return dev_err_probe(dev, PTR_ERR(scp->reg_base), - "Failed to parse and map cfg memory\n"); - ret = scp->data->scp_clk_get(scp); if (ret) return ret; @@ -957,6 +952,42 @@ static int scp_probe(struct platform_device *pdev) return ret; } +static int scp_probe(struct platform_device *pdev) +{ + struct device *dev = &pdev->dev; + struct mtk_scp_of_cluster *of_cluster; + struct resource *res; + int ret; + + of_cluster = devm_kzalloc(&pdev->dev, sizeof(*of_cluster), GFP_KERNEL); + if (!of_cluster) + return -ENOMEM; + + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg"); + of_cluster->reg_base = devm_ioremap_resource(dev, res); + if (IS_ERR(of_cluster->reg_base)) + return dev_err_probe(dev, PTR_ERR(of_cluster->reg_base), + "Failed to parse and map cfg memory\n"); + + /* l1tcm is an optional memory region */ + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "l1tcm"); + of_cluster->l1tcm_base = devm_ioremap_resource(dev, res); + if (IS_ERR(of_cluster->l1tcm_base)) { + ret = PTR_ERR(of_cluster->l1tcm_base); + if (ret != -EINVAL) + return dev_err_probe(dev, ret, "Failed to map l1tcm memory\n"); + + of_cluster->l1tcm_base = NULL; + } else { + of_cluster->l1tcm_size = resource_size(res); + of_cluster->l1tcm_phys = res->start; + } + + platform_set_drvdata(pdev, of_cluster); + + return scp_rproc_init(pdev); +} + static int scp_remove(struct platform_device *pdev) { struct mtk_scp *scp = platform_get_drvdata(pdev);