From patchwork Wed Jul 12 09:43:24 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christophe Leroy X-Patchwork-Id: 787094 X-Patchwork-Delegate: trini@ti.com Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3x6vDq4n5hz9s65 for ; Wed, 12 Jul 2017 19:44:43 +1000 (AEST) Received: by lists.denx.de (Postfix, from userid 105) id 48B3AC21FB7; Wed, 12 Jul 2017 09:43:52 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on lists.denx.de X-Spam-Level: X-Spam-Status: No, score=0.0 required=5.0 tests=RCVD_IN_DNSWL_NONE autolearn=unavailable autolearn_force=no version=3.4.0 Received: from lists.denx.de (localhost [IPv6:::1]) by lists.denx.de (Postfix) with ESMTP id 17FB8C21F28; Wed, 12 Jul 2017 09:43:31 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id 6056CC21F11; Wed, 12 Jul 2017 09:43:25 +0000 (UTC) Received: from pegase1.c-s.fr (pegase1.c-s.fr [93.17.236.30]) by lists.denx.de (Postfix) with ESMTPS id 2EA34C21EFF for ; Wed, 12 Jul 2017 09:43:25 +0000 (UTC) Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 3x6vC62WVlz9ttBg; Wed, 12 Jul 2017 11:43:14 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id RzKSgFoe1thx; Wed, 12 Jul 2017 11:43:14 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 3x6vC624WGz9ttBV; Wed, 12 Jul 2017 11:43:14 +0200 (CEST) Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id C18D18B830; Wed, 12 Jul 2017 11:43:24 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id E7rpyaOglzrb; Wed, 12 Jul 2017 11:43:24 +0200 (CEST) Received: from pc13941vm.idsi0.si.c-s.fr (po15451.idsi0.si.c-s.fr [172.25.231.8]) by messagerie.si.c-s.fr (Postfix) with ESMTP id A29E88B7FE; Wed, 12 Jul 2017 11:43:24 +0200 (CEST) Received: by pc13941vm.idsi0.si.c-s.fr (Postfix, from userid 0) id 8E2E26A666; Wed, 12 Jul 2017 11:43:24 +0200 (CEST) Message-Id: In-Reply-To: References: From: Christophe Leroy To: Wolfgang Denk , Heiko Schocher , Tom Rini Date: Wed, 12 Jul 2017 11:43:24 +0200 (CEST) Cc: u-boot@lists.denx.de Subject: [U-Boot] [PATCH 04/14] power, timer: reset TBL before TBU X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.18 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" In order to avoid TBU increment due to TBL reaching its max and wrapping, reset TBL before resetting TBU Signed-off-by: Christophe Leroy Reviewed-by: Wolfgang Denk --- arch/powerpc/lib/time.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/lib/time.c b/arch/powerpc/lib/time.c index ff9bb67e28..c43f254481 100644 --- a/arch/powerpc/lib/time.c +++ b/arch/powerpc/lib/time.c @@ -66,7 +66,7 @@ int timer_init(void) unsigned long temp; /* reset */ - asm volatile("li %0,0 ; mttbu %0 ; mttbl %0;" + asm volatile("li %0,0 ; mttbl %0 ; mttbu %0;" : "=&r"(temp) ); return (0);