From patchwork Thu Jul 12 03:48:47 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Benjamin Herrenschmidt X-Patchwork-Id: 942782 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 41R25w2yC3z9s01 for ; Thu, 12 Jul 2018 13:50:44 +1000 (AEST) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 41R25w1JcMzF35b for ; Thu, 12 Jul 2018 13:50:44 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=permerror (mailfrom) smtp.mailfrom=kernel.crashing.org (client-ip=63.228.1.57; helo=gate.crashing.org; envelope-from=benh@kernel.crashing.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kernel.crashing.org Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 41R24M0sPQzF35m; Thu, 12 Jul 2018 13:49:22 +1000 (AEST) 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 w6C3mnNX020207; Wed, 11 Jul 2018 22:49:06 -0500 From: Benjamin Herrenschmidt To: linux-aspeed@lists.ozlabs.org Subject: [PATCH v3 5/5] arm: dts: OpenPower Palmetto system can use coprocessor for FSI Date: Thu, 12 Jul 2018 13:48:47 +1000 Message-Id: <20180712034847.12878-6-benh@kernel.crashing.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180712034847.12878-1-benh@kernel.crashing.org> References: <20180712034847.12878-1-benh@kernel.crashing.org> X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.27 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Rob Herring , OpenBMC Maillist , linux-kernel@vger.kernel.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" 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 e6095f51ecf5..feec377c04d4 100644 --- a/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts +++ b/arch/arm/boot/dts/aspeed-bmc-opp-palmetto.dts @@ -31,6 +31,11 @@ no-map; reg = <0x98000000 0x01000000>; /* 16MB */ }; + + coldfire_memory: codefire_memory@5ee00000 { + reg = <0x5ee00000 0x00200000>; + no-map; + }; }; leds { @@ -49,6 +54,22 @@ }; }; + 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"; @@ -323,13 +344,6 @@ 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 = ;