From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752279AbbBXJBe (ORCPT ); Tue, 24 Feb 2015 04:01:34 -0500 Received: from mailout3.samsung.com ([203.254.224.33]:56438 "EHLO mailout3.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751147AbbBXJBb (ORCPT ); Tue, 24 Feb 2015 04:01:31 -0500 X-AuditID: cbfee691-f79b86d000004a5a-1b-54ec3de7f37d Message-id: <54EC3DE7.7070306@samsung.com> Date: Tue, 24 Feb 2015 18:01:27 +0900 From: Chanwoo Choi User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20130106 Thunderbird/17.0.2 MIME-version: 1.0 To: Arnd Bergmann Cc: kgene@kernel.org, mark.rutland@arm.com, marc.zyngier@arm.com, olof@lixom.net, catalin.marinas@arm.com, will.deacon@arm.com, inki.dae@samsung.com, chanho61.park@samsung.com, sw0312.kim@samsung.com, jh80.chung@samsung.com, ideal.song@samsung.com, a.kesavan@samsung.com, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v4 2/8] arm64: dts: exynos: Add dts files for 64-bit Exynos5433 SoC References: <1424755011-15999-1-git-send-email-cw00.choi@samsung.com> <1424755011-15999-3-git-send-email-cw00.choi@samsung.com> <19309272.tlWX2xvTnx@wuerfel> In-reply-to: <19309272.tlWX2xvTnx@wuerfel> Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7bit X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrPIsWRmVeSWpSXmKPExsWyRsSkSPe57ZsQg2XzpS0er1nMZPF30jF2 i/fLehgtLu/Xtph/5Byrxa6/9xktJt2fwGJx41cbq0X/49fMFpseX2O1uLxrDpvFjPP7gLru /GOzWHr9IpPFqeufgWKTX7JZvPx4gsVB0GPNvDWMHr9/TWL02LSqk81j85J6jysnmlg9+ras YvT4vEkugD2KyyYlNSezLLVI3y6BK2PPk/lsBf/YKxqPb2BpYNzN1sXIySEhYCLRcXoHK4Qt JnHh3nqgOBeHkMBSRomb3afZuxg5wIrePEmHiE9nlJi6sA+q6DWjxN4z31lAunkFtCSOb33B CGKzCKhKvP87kx3EZgOK739xA2ybqECYxMrpV6DqBSV+TL4HZosIKEpMffGMGWQos8BsZon2 H5uYQRLCApESD382Q21byChx7eJnsFs5gaa2L7gDNpVZQEdif+s0KFteYvOat2CTJATmckjM uz0Z6iQBiW+TD7FA/CMrsekAM8TPkhIHV9xgmcAoNgvJUbOQjJ2FZOwCRuZVjKKpBckFxUnp RaZ6xYm5xaV56XrJ+bmbGIHxfvrfs4k7GO8fsD7EKMDBqMTDmyD8JkSINbGsuDL3EKMp0BUT maVEk/OBSSWvJN7Q2MzIwtTE1NjI3NJMSZxXR/pnsJBAemJJanZqakFqUXxRaU5q8SFGJg5O qQbGuSd/1myJ873F3Cmb3jaVbXWFt41YuHnQPaMLGSwLb3GvuZfqb/tZ49C7BU2/S66k5en7 b5z+8KLAm9VJO29PsjY3KnyxzdtSN/ZQTwpnz4flLWJa67NvRX5oLp/wjUWopvB8fKLqLFl1 +96pW6zFWsLMlpj6H0m0nT3pk3CzltrZBe/ftq9SYinOSDTUYi4qTgQAjizzDvICAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrJKsWRmVeSWpSXmKPExsVy+t9jQd3ntm9CDJ7dFrZ4vGYxk8XfScfY Ld4v62G0uLxf22L+kXOsFrv+3me0mHR/AovFjV9trBb9j18zW2x6fI3V4vKuOWwWM87vA+q6 84/NYun1i0wWp65/BopNfslm8fLjCRYHQY8189Ywevz+NYnRY9OqTjaPzUvqPa6caGL16Nuy itHj8ya5APaoBkabjNTElNQihdS85PyUzLx0WyXv4HjneFMzA0NdQ0sLcyWFvMTcVFslF58A XbfMHKAPlBTKEnNKgUIBicXFSvp2mCaEhrjpWsA0Ruj6hgTB9RgZoIGENYwZe57MZyv4x17R eHwDSwPjbrYuRg4OCQETiTdP0rsYOYFMMYkL99YDhbk4hASmM0pMXdgH5bxmlNh75jsLSBWv gJbE8a0vGEFsFgFVifd/Z7KD2GxA8f0vbrCB2KICYRIrp1+BqheU+DH5HpgtIqAoMfXFM2aQ ocwCs5kl2n9sYgZJCAtESjz82Qy1bSGjxLWLn1lBEpxAU9sX3AGbyiygI7G/dRqULS+xec1b 5gmMArOQLJmFpGwWkrIFjMyrGEVTC5ILipPSc430ihNzi0vz0vWS83M3MYKTyTPpHYyrGiwO MQpwMCrx8CYKvwkRYk0sK67MPcQowcGsJMKb9vR1iBBvSmJlVWpRfnxRaU5q8SFGU2AYTGSW Ek3OBya6vJJ4Q2MTMyNLI3NDCyNjcyVxXiX7thAhgfTEktTs1NSC1CKYPiYOTqkGRmvRBQ48 tnFX8hQ3nt/BxpzF7rawdMMFlgV7dbra64oldVrY30n66spe7r3vbtkfdm9OrYQrS8nW2tsx j+dVJvsvWJC619G5PPhO+YLV8n985120mfrL59ip/Ww3dc2k7rlvn73zd+ah/qtrr9xIvfh8 7Yeig2YH8nu/MYdsE0z5+OvjHMHqECWW4oxEQy3mouJEABg/iBU8AwAA DLP-Filter: Pass X-MTR: 20000000000000000@CPGS X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 02/24/2015 05:33 PM, Arnd Bergmann wrote: > On Tuesday 24 February 2015 14:16:45 Chanwoo Choi wrote: >> This patch adds new Exynos5433 dtsi to support 64-bit Exynos5433 SoC based on >> Octal core CPUs (quad Cortex-A57 and quad Cortex-A53). And Exynos5433 supports >> PSCI (Power State Coordination Interface) v0.1. >> >> This patch includes following dt node to support Exynos5433 SoC: >> 1. Octa core for big.LITTLE architecture >> - Cortex-A53 LITTLE Quad-core >> - Cortex-A57 big Quad-core >> - Support PSCI v0.1 > > Should we try to come up with a way to better share parts of this with the > exynos5 dtsi files you already have in arm32? I suspect that there is a > significant overlap. Currently, 32-bit Exynos5 SoC (which is included in arch/arm/boot/dts) didn't support the Cortex-A53/A57 and PSCI. The 32-bit Exynos5 SoC support the Coretex-A7 or A15 and big.LITTLE Exynos5 SoC use the MCPM (Multi-Cluster PM) driver for secondary cpu on/off instead of PSCI. Thanks, Chanwoo Choi