From patchwork Mon Oct 29 07:25:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chris Packham X-Patchwork-Id: 10658811 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0976614BD for ; Mon, 29 Oct 2018 07:29:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9A9229711 for ; Mon, 29 Oct 2018 07:29:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DADAC29714; Mon, 29 Oct 2018 07:29:49 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id BF31F29711 for ; 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Mon, 29 Oct 2018 20:25:54 +1300 Received: from chrisp-dl.ws.atlnz.lc (chrisp-dl.ws.atlnz.lc [10.33.22.30]) by smtp (Postfix) with ESMTP id 9506713EFC4; Mon, 29 Oct 2018 20:25:53 +1300 (NZDT) Received: by chrisp-dl.ws.atlnz.lc (Postfix, from userid 1030) id BB79C1E21FF; Mon, 29 Oct 2018 20:25:48 +1300 (NZDT) From: Chris Packham To: linux@armlinux.org.uk Subject: [PATCH v5 4/8] ARM: l2x0: support parity-enable/disable on aurora Date: Mon, 29 Oct 2018 20:25:31 +1300 Message-Id: <20181029072535.31667-5-chris.packham@alliedtelesis.co.nz> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20181029072535.31667-1-chris.packham@alliedtelesis.co.nz> References: <20181029072535.31667-1-chris.packham@alliedtelesis.co.nz> MIME-Version: 1.0 x-atlnz-ls: pat X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181029_002629_864381_A417CB21 X-CRM114-Status: GOOD ( 10.08 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jlu@pengutronix.de, linux-kernel@vger.kernel.org, Chris Packham , bp@alien8.de, u.kleine-koenig@pengutronix.de, linux-arm-kernel@lists.infradead.org, linux-edac@vger.kernel.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP The aurora cache on the Marvell Armada-XP SoC supports the same tag parity features as the other l2x0 cache implementations. Signed-off-by: Chris Packham [jlu@pengutronix.de: use aurora specific define AURORA_ACR_PARITY_EN] Signed-off-by: Jan Luebbe --- arch/arm/mm/cache-l2x0.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c index 7d2d2a3c67d0..b70bee74750d 100644 --- a/arch/arm/mm/cache-l2x0.c +++ b/arch/arm/mm/cache-l2x0.c @@ -1505,6 +1505,13 @@ static void __init aurora_of_parse(const struct device_node *np, mask |= AURORA_ACR_FORCE_WRITE_POLICY_MASK; } + if (of_property_read_bool(np, "arm,parity-enable")) { + mask |= AURORA_ACR_PARITY_EN; + val |= AURORA_ACR_PARITY_EN; + } else if (of_property_read_bool(np, "arm,parity-disable")) { + mask |= AURORA_ACR_PARITY_EN; + } + *aux_val &= ~mask; *aux_val |= val; *aux_mask &= ~mask;