From patchwork Mon Feb 19 07:35:40 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Joel Stanley X-Patchwork-Id: 874995 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zlFst4fqrz9ryr for ; Mon, 19 Feb 2018 18:36:02 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Liiov/CO"; dkim-atps=neutral Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3zlFst2XJczDrK9 for ; Mon, 19 Feb 2018 18:36:02 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Liiov/CO"; dkim-atps=neutral X-Original-To: linux-aspeed@lists.ozlabs.org Delivered-To: linux-aspeed@lists.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:400e:c00::244; helo=mail-pf0-x244.google.com; envelope-from=joel.stan@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="Liiov/CO"; dkim-atps=neutral Received: from mail-pf0-x244.google.com (mail-pf0-x244.google.com [IPv6:2607:f8b0:400e:c00::244]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zlFsn4XwhzDrFk for ; Mon, 19 Feb 2018 18:35:57 +1100 (AEDT) Received: by mail-pf0-x244.google.com with SMTP id m5so223007pff.7 for ; Sun, 18 Feb 2018 23:35:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id; bh=7gqTF1bgvZmuNSAMp/bukbVmv8u9iZtBgXHxiYm6rgI=; b=Liiov/COoNBbvO/ya6eBPvFiOCgeHiKCjg2IkBBEmeytsaoxjVYq5iTc8gZFZLlM3k eOtg61EBmszHpTJhViL1GYkA9rGQHNFcdWdXwKPAkHpOb77SEm9FzpWpQiF9SIEQEq7R EHA+Gq2QLq+kz35qibWRcUxIQ4L3Up9AwcuTTz47o9pCe9Yf0D+X0/4zcqTD5sAk4+Xo nYOfuQFb3q5U/VFhpuxSaauO6Z9dB7TPAjfz2R40SUniVlXhlWMBY2nCNNV55S/JgRkl FYeMp/VAPv6Cbb86jQ7ixQNV/+t+gksR44zmPLaIGD1SR32PLfTBt+yQkAFX4tGmosCx L3SQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id; bh=7gqTF1bgvZmuNSAMp/bukbVmv8u9iZtBgXHxiYm6rgI=; b=Sot1t3SeWUOuVYHzf0cGHBoZ4uo51hcWB9avI7giJQ5Wqov66thW4FFr3my/csFMuk HM6QpC5JH4s/i+nfrCOJywC7b056BDbV9qDNyQMtuXx9hOjRSAoKbmH0TL2sU6VN91BF drXpl0VurVYO+PoVy4YMkiG1/4JWBoUbQh/j+CZIQA3u+mirKIi2nc124YcPAImZpyX4 lOO2Cyz+JCS135ExjV2nvS1lxwGM9cNXUOnkeVi4nJKbocO8EvkKE7ZH2H8Jbrhlv2f3 PjPRg63JFdVcCsuXUPosklzkHWd2kRQV4vyA6L/Q/Ci9WoxGd0ro7UXfKQunagLJkDsE hSog== X-Gm-Message-State: APf1xPBII+oTLUTRiL5ROrWuYj1ZMtTPBvNid55VmMvqwz2y2yBwnYK+ oAb455vR4KmeHHDTHMzuwyI= X-Google-Smtp-Source: AH8x226zvWDVxRj608YPMH4+azfJlAb5KNEopTZBZlDCRPvw9uD0eabh3yCUfwSQXBuzoNSVgay1rw== X-Received: by 10.99.107.200 with SMTP id g191mr11450986pgc.165.1519025754746; Sun, 18 Feb 2018 23:35:54 -0800 (PST) Received: from aurora.jms.id.au ([45.124.203.19]) by smtp.gmail.com with ESMTPSA id f79sm60524747pfd.103.2018.02.18.23.35.49 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Sun, 18 Feb 2018 23:35:54 -0800 (PST) Received: by aurora.jms.id.au (sSMTP sendmail emulation); Mon, 19 Feb 2018 18:05:46 +1030 From: Joel Stanley To: Joel Stanley , Andrew Jeffery Subject: [PATCH] ARM: dts: aspeed: Add LPC reset controller node Date: Mon, 19 Feb 2018 18:05:40 +1030 Message-Id: <20180219073540.24520-1-joel@jms.id.au> X-Mailer: git-send-email 2.15.1 X-BeenThere: linux-aspeed@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux ASPEED SoC development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , devicetree@vger.kernel.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Rob Herring , linux-arm-kernel@lists.infradead.org Errors-To: linux-aspeed-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linux-aspeed" On both the ast2400 and ast2500 SoCs, the LPC reset controller is required to bring the UARTs out of reset without waiting for the LPC reset to be deasserted. Signed-off-by: Joel Stanley --- Bindings and driver change is under reivew: https://lkml.org/lkml/2018/2/19/12 arch/arm/boot/dts/aspeed-g4.dtsi | 10 ++++++++++ arch/arm/boot/dts/aspeed-g5.dtsi | 10 ++++++++++ 2 files changed, 20 insertions(+) diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi index 48c28a71ae7e..36ae23aa3b48 100644 --- a/arch/arm/boot/dts/aspeed-g4.dtsi +++ b/arch/arm/boot/dts/aspeed-g4.dtsi @@ -162,6 +162,7 @@ reg-shift = <2>; interrupts = <9>; clocks = <&syscon ASPEED_CLK_GATE_UART1CLK>; + resets = <&lpc_reset 4>; no-loopback-test; status = "disabled"; }; @@ -249,6 +250,12 @@ reg = <0x20 0x24 0x48 0x8>; }; + lpc_reset: reset-controller@18 { + compatible = "aspeed,ast2400-lpc-reset"; + reg = <0x18 0x4>; + #reset-cells = <1>; + }; + ibt: ibt@c0 { compatible = "aspeed,ast2400-ibt-bmc"; reg = <0xc0 0x18>; @@ -264,6 +271,7 @@ reg-shift = <2>; interrupts = <32>; clocks = <&syscon ASPEED_CLK_GATE_UART2CLK>; + resets = <&lpc_reset 5>; no-loopback-test; status = "disabled"; }; @@ -274,6 +282,7 @@ reg-shift = <2>; interrupts = <33>; clocks = <&syscon ASPEED_CLK_GATE_UART3CLK>; + resets = <&lpc_reset 6>; no-loopback-test; status = "disabled"; }; @@ -284,6 +293,7 @@ reg-shift = <2>; interrupts = <34>; clocks = <&syscon ASPEED_CLK_GATE_UART4CLK>; + resets = <&lpc_reset 7>; no-loopback-test; status = "disabled"; }; diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi index 8eac57c33880..17ee0fa33a14 100644 --- a/arch/arm/boot/dts/aspeed-g5.dtsi +++ b/arch/arm/boot/dts/aspeed-g5.dtsi @@ -205,6 +205,7 @@ reg-shift = <2>; interrupts = <9>; clocks = <&syscon ASPEED_CLK_GATE_UART1CLK>; + resets = <&lpc_reset 4>; no-loopback-test; status = "disabled"; }; @@ -299,6 +300,12 @@ reg = <0x20 0x24 0x48 0x8>; }; + lpc_reset: reset-controller@18 { + compatible = "aspeed,ast2500-lpc-reset"; + reg = <0x18 0x4>; + #reset-cells = <1>; + }; + ibt: ibt@c0 { compatible = "aspeed,ast2500-ibt-bmc"; reg = <0xc0 0x18>; @@ -314,6 +321,7 @@ reg-shift = <2>; interrupts = <32>; clocks = <&syscon ASPEED_CLK_GATE_UART2CLK>; + resets = <&lpc_reset 5>; no-loopback-test; status = "disabled"; }; @@ -324,6 +332,7 @@ reg-shift = <2>; interrupts = <33>; clocks = <&syscon ASPEED_CLK_GATE_UART3CLK>; + resets = <&lpc_reset 6>; no-loopback-test; status = "disabled"; }; @@ -334,6 +343,7 @@ reg-shift = <2>; interrupts = <34>; clocks = <&syscon ASPEED_CLK_GATE_UART4CLK>; + resets = <&lpc_reset 7>; no-loopback-test; status = "disabled"; };