From patchwork Sun Jul 3 16:46:26 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshinori Sato X-Patchwork-Id: 9211333 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 0017A60752 for ; Sun, 3 Jul 2016 16:52:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E629C285C4 for ; Sun, 3 Jul 2016 16:52:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DA6F4285E8; Sun, 3 Jul 2016 16:52:11 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8AC97285C4 for ; Sun, 3 Jul 2016 16:52:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752878AbcGCQrR (ORCPT ); Sun, 3 Jul 2016 12:47:17 -0400 Received: from mail1.asahi-net.or.jp ([202.224.39.197]:9812 "EHLO mail1.asahi-net.or.jp" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752838AbcGCQrA (ORCPT ); Sun, 3 Jul 2016 12:47:00 -0400 Received: from sa76r4 (y081184.ppp.asahi-net.or.jp [118.243.81.184]) by mail1.asahi-net.or.jp (Postfix) with ESMTP id DD6C6E5D6; Mon, 4 Jul 2016 01:46:58 +0900 (JST) Received: from localhost (localhost [127.0.0.1]) by sa76r4 (Postfix) with ESMTP id D2CDB35F2; Mon, 4 Jul 2016 01:46:58 +0900 (JST) X-Virus-Scanned: Debian amavisd-new at sa76r4.localdomain Received: from sa76r4 ([127.0.0.1]) by localhost (sa76r4.localdomain [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id yM37dHQy-R0D; Mon, 4 Jul 2016 01:46:58 +0900 (JST) Received: by sa76r4 (Postfix, from userid 1000) id B8D4A376E; Mon, 4 Jul 2016 01:46:58 +0900 (JST) From: Yoshinori Sato To: linux-sh@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Yoshinori Sato Subject: [PATCH v5 06/22] sh: FDT address save before bank change Date: Mon, 4 Jul 2016 01:46:26 +0900 Message-Id: <1467564402-2649-7-git-send-email-ysato@users.sourceforge.jp> X-Mailer: git-send-email 2.7.0 In-Reply-To: <1467564402-2649-1-git-send-email-ysato@users.sourceforge.jp> References: <1467564402-2649-1-git-send-email-ysato@users.sourceforge.jp> Sender: linux-sh-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-sh@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP SH3/4 have register bank of R0-R7. Preset FDT address assigned bank depend on boot loader. Before setting a bank because we don't depend on a boot loader, it's evacuated. Signed-off-by: Yoshinori Sato --- arch/sh/kernel/head_32.S | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/arch/sh/kernel/head_32.S b/arch/sh/kernel/head_32.S index 974bc15..ef44fe8 100644 --- a/arch/sh/kernel/head_32.S +++ b/arch/sh/kernel/head_32.S @@ -58,6 +58,9 @@ ENTRY(empty_zero_page) * */ ENTRY(_stext) +#ifdef CONFIG_OF + mov r4, r12 ! Store device tree blob pointer +#endif ! Initialize Status Register mov.l 1f, r0 ! MD=1, RB=0, BL=0, IMASK=0xF ldc r0, sr @@ -67,10 +70,6 @@ ENTRY(_stext) ldc r0, r6_bank #endif -#ifdef CONFIG_OF - mov r4, r12 ! Store device tree blob pointer in r12 -#endif - /* * Prefetch if possible to reduce cache miss penalty. *