From patchwork Thu Sep 29 23:41:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 12994793 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 DB0A2C433F5 for ; Fri, 30 Sep 2022 00:09:36 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=bPKJ5VGv+8vtVXBfJ6j5x6cB16vfg8MWxBQ4zd1iFds=; b=wJwc5/kJdMj26e tY05cdAqpLRwnv27nj4vCqpi1i0xg0S0mW9/mKHWL1/eTRurRVQMlUPPHGJcE+Y2dAJt5XNO7qjC0 hnh5tTL26M0qd1FJ8EWzrOdRZMTcTol9OOtLzS/lHLoQZVOJTTx+vxRwx0FVoE1AnCk8apgRqcDIN Kj6zL3KJK8tyNaNrKEqA+PZJaGNZ7oSytCwXyGlDZw6VtLDuGycz3D7pCGMtgT+sq0Bu1mCizRNd5 0gdsP9xi+N6SExgRbZUVwQTFMJkH+rURjCoJbK7+KcmCjg89vK9PXVRMreG7+mWrLBA0n0oU7Au13 u49fwohbEJnGXiRUlyEQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oe3Zo-006EzY-6i; Fri, 30 Sep 2022 00:08:25 +0000 Received: from post.baikalelectronics.com ([213.79.110.86]) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1oe39s-00631A-9d for linux-arm-kernel@lists.infradead.org; Thu, 29 Sep 2022 23:41:44 +0000 Received: from post.baikalelectronics.com (localhost.localdomain [127.0.0.1]) by post.baikalelectronics.com (Proxmox) with ESMTP id CE36EE0EF4; Fri, 30 Sep 2022 02:41:35 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= baikalelectronics.ru; h=cc:cc:content-transfer-encoding :content-type:content-type:date:from:from:in-reply-to:message-id :mime-version:references:reply-to:subject:subject:to:to; s=post; bh=tIFko1L6or88/GVnsEDwf0248T9U3azU2y4h1UIalJo=; b=nXFrPkkrCooC cJf+DC2Xy1Xgu8TZDAoy5YzJXJA5J4axFdnC3opfES1zF87HNqaZLto+5mqgQXed hpLKnda9hvmyw3J53/pivKYRjYrZ24tOOI0dAJZL3rHsIlUbxYICNKxBPAOqA6+/ 9rgsdEzvbi39SST5OoKnU8OTqMczQec= Received: from mail.baikal.int (mail.baikal.int [192.168.51.25]) by post.baikalelectronics.com (Proxmox) with ESMTP id C2824E0EEA; Fri, 30 Sep 2022 02:41:35 +0300 (MSK) Received: from localhost (192.168.168.10) by mail (192.168.51.25) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Fri, 30 Sep 2022 02:41:36 +0300 From: Serge Semin To: Rob Herring , Krzysztof Kozlowski , Michal Simek , Borislav Petkov , Mauro Carvalho Chehab , Tony Luck , James Morse , Robert Richter CC: Serge Semin , Serge Semin , Alexey Malahov , Michail Ivanov , Pavel Parkhomenko , Punnaiah Choudary Kalluri , Manish Narani , Dinh Nguyen , Rob Herring , Krzysztof Kozlowski , , , , Subject: [PATCH v3 13/13] EDAC/synopsys: Add Baikal-T1 DDRC support Date: Fri, 30 Sep 2022 02:41:21 +0300 Message-ID: <20220929234121.13955-14-Sergey.Semin@baikalelectronics.ru> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20220929234121.13955-1-Sergey.Semin@baikalelectronics.ru> References: <20220929234121.13955-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-Originating-IP: [192.168.168.10] X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220929_164136_629032_7804392E X-CRM114-Status: GOOD ( 15.11 ) 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 Baikal-T1 SoC is equipped with the DW uMCTl2 DDRC of v2.61a with 32-bit DQ-bus accepting DDR2/DDR3 SDRAMs of up to 2 ranks, 1:2 HIF/SDRAM clocks rate ratio, HIF interface burst length of 8 Full DQ-bus words, 40-bit System/Application address width and 128-bits data width, 3 System address regions with block size 256MB. There is SEC/DED ECC capability with Scrub (RMW) and Scrubber features. Since the Baikal-T1 DDR controller is capable of the ECC let's add it to the DW uMCTL2 DDRC EDAC driver. The most of the parameters above will be autodetected except HIF burst length and SAR block size, which will be set by means of the Baikal-T1-specific initialization method. The controller compatible string "baikal,bt1-ddrc" will be used to attach the driver to the kernel device. It's chosen in accordance with the just updated DT-bindings. Signed-off-by: Serge Semin --- drivers/edac/synopsys_edac.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/edac/synopsys_edac.c b/drivers/edac/synopsys_edac.c index 0a00e80ddeb9..24cd8f23242a 100644 --- a/drivers/edac/synopsys_edac.c +++ b/drivers/edac/synopsys_edac.c @@ -1342,6 +1342,20 @@ static int zynqmp_init_plat(struct snps_edac_priv *priv) return 0; } +/* + * bt1_init_plat - Baikal-T1-specific platform initialization. + * @priv: DDR memory controller private data. + * + * Return: always zero. + */ +static int bt1_init_plat(struct snps_edac_priv *priv) +{ + priv->info.hif_burst_len = SNPS_DDR_BL8; + priv->sys_app_map.minsize = DDR_MIN_SARSIZE; + + return 0; +} + /** * snps_get_dtype - Return the controller memory width. * @mstr: Master CSR value. @@ -2470,6 +2484,7 @@ static int snps_mc_remove(struct platform_device *pdev) static const struct of_device_id snps_edac_match[] = { { .compatible = "xlnx,zynqmp-ddrc-2.40a", .data = zynqmp_init_plat }, + { .compatible = "baikal,bt1-ddrc", .data = bt1_init_plat }, { .compatible = "snps,ddrc-3.80a" }, { } };