From patchwork Tue Jul 24 04:24:04 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Herrenschmidt X-Patchwork-Id: 10541333 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 5A1B2112B for ; Tue, 24 Jul 2018 04:25:03 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4618A285F7 for ; Tue, 24 Jul 2018 04:25:03 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3607228639; Tue, 24 Jul 2018 04:25:03 +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 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 D431E285F7 for ; Tue, 24 Jul 2018 04:25:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=YxH2eDQykqp8dM8ki7IFUVFhaCFWLIXjIhQSW3z0HSQ=; b=bxf5LCxhJsGZbvc1Y0NmfqdH3u Sg9Lx9G2qxoBLLWtS3NlQaAkC8/vKzN4rgr9GnkiwovTfsEBQyv94lUBypd7gA/rhjEprG4h3arms xAGfrLm70WWIpshspuBp/fIp2Niq7OOwA2nKlR97FoK/5DEE2R3Zn5eI4W9OSUKxs65Q0ulkon76Y Amh5wFSAfiRwr3XRm0+Q3c0DkCkqwnlsnZDoTUgu0B551j2HUuXjAcNvx3nUpjuHFig5ovVs2mvKi Oj5397QV1XVw4LvBlaKMq8KyN1RI4zxfA7Ruq13l6IvM4vM+HmCBXAFQhrIn8aNfM9TZBQjr+pitz GbbS41JQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhosc-0001bc-V1; Tue, 24 Jul 2018 04:24:59 +0000 Received: from gate.crashing.org ([63.228.1.57]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fhosP-0001JD-3M for linux-arm-kernel@lists.infradead.org; Tue, 24 Jul 2018 04:24:46 +0000 Received: from pasglop.ozlabs.ibm.com (localhost.localdomain [127.0.0.1]) by gate.crashing.org (8.14.1/8.14.1) with ESMTP id w6O4O7pH026704; Mon, 23 Jul 2018 23:24:16 -0500 From: Benjamin Herrenschmidt To: Joel Stanley Subject: [PATCH 3/5] arm: dts: OpenPower Palmetto system can use coprocessor for FSI Date: Tue, 24 Jul 2018 14:24:04 +1000 Message-Id: <20180724042406.15374-4-benh@kernel.crashing.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180724042406.15374-1-benh@kernel.crashing.org> References: <20180724042406.15374-1-benh@kernel.crashing.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180723_212445_366985_961E2F0D X-CRM114-Status: UNSURE ( 7.84 ) X-CRM114-Notice: Please train this message. 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: Andrew Jeffery , Benjamin Herrenschmidt , linux-aspeed@lists.ozlabs.org, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 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 This switches away from userspace bitbanging to kernel FSI using the coprocessor. Signed-off-by: Benjamin Herrenschmidt --- arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts | 28 ++++++++++++++----- 1 file changed, 21 insertions(+), 7 deletions(-) diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts index c7084a819dc6..e6cfdf3c1a67 100644 --- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts +++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts @@ -26,6 +26,11 @@ no-map; reg = <0x5f000000 0x01000000>; /* 16M */ }; + + coldfire_memory: codefire_memory@5ee00000 { + reg = <0x5ee00000 0x00200000>; + no-map; + }; }; leds { @@ -44,6 +49,22 @@ }; }; + fsi: gpio-fsi { + compatible = "aspeed,ast2400-cf-fsi-master", "fsi-master"; + #address-cells = <2>; + #size-cells = <0>; + + memory-region = <&coldfire_memory>; + aspeed,sram = <&sram>; + aspeed,cvic = <&cvic>; + + clock-gpios = <&gpio ASPEED_GPIO(A, 4) GPIO_ACTIVE_HIGH>; + data-gpios = <&gpio ASPEED_GPIO(A, 5) GPIO_ACTIVE_HIGH>; + mux-gpios = <&gpio ASPEED_GPIO(A, 6) GPIO_ACTIVE_HIGH>; + enable-gpios = <&gpio ASPEED_GPIO(D, 0) GPIO_ACTIVE_HIGH>; + trans-gpios = <&gpio ASPEED_GPIO(H, 6) GPIO_ACTIVE_HIGH>; + }; + gpio-keys { compatible = "gpio-keys"; @@ -303,13 +324,6 @@ line-name = "SYS_PWROK_BMC"; }; - pin_gpio_h6 { - gpio-hog; - gpios = ; - output-high; - line-name = "SCM1_FSI0_DATA_EN"; - }; - pin_gpio_h7 { gpio-hog; gpios = ;