From patchwork Fri Dec 15 12:56:15 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: linux-kernel-dev X-Patchwork-Id: 849150 X-Patchwork-Delegate: sbabic@denx.de Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=lists.denx.de (client-ip=81.169.180.215; helo=lists.denx.de; envelope-from=u-boot-bounces@lists.denx.de; receiver=) Received: from lists.denx.de (dione.denx.de [81.169.180.215]) by ozlabs.org (Postfix) with ESMTP id 3yyr785Mf1z9s03 for ; Fri, 15 Dec 2017 23:57:23 +1100 (AEDT) Received: by lists.denx.de (Postfix, from userid 105) id DC439C21F4F; Fri, 15 Dec 2017 12:57:13 +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_BLOCKED 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 9FEC2C21E0E; Fri, 15 Dec 2017 12:57:10 +0000 (UTC) Received: by lists.denx.de (Postfix, from userid 105) id BB6A7C21E3B; Fri, 15 Dec 2017 12:57:08 +0000 (UTC) Received: from Netsrv01.beckhoff.com (netsrv01.beckhoff.com [62.159.14.10]) by lists.denx.de (Postfix) with ESMTPS id 54F90C21E0E for ; Fri, 15 Dec 2017 12:57:08 +0000 (UTC) Received: from lbs1.beckhoff.com (172.17.64.137) by NT-Mail06.beckhoff.com (10.1.0.30) with Microsoft SMTP Server (TLS) id 14.3.301.0; Fri, 15 Dec 2017 13:56:25 +0100 From: To: Date: Fri, 15 Dec 2017 13:56:15 +0100 Message-ID: <20171215125615.21702-1-linux-kernel-dev@beckhoff.com> X-Mailer: git-send-email 2.11.0 MIME-Version: 1.0 X-Originating-IP: [172.17.64.137] X-OLX-Disclaimer: Done Cc: Fabio Estevam , Patrick Bruenn Subject: [U-Boot] [PATCH] arm: imx: cx9020: remove usage of mx53_dram_size 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: , Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Patrick Bruenn Global variables are not available during board_init_f(). 'static uint32_t mx53_dram_size[2];' was used in board specific dram_init(), dram_init_banksize() and get_effective_memsize() to avoid multiple calls to get_ram_size(). However multiple calls are better than undefined behavior... This fixes: https://lists.denx.de/pipermail/u-boot/2017-November/313214.html https://lists.denx.de/pipermail/u-boot/2017-December/314480.html Signed-off-by: Patrick Bruenn --- mx53cx9020 was based on mx53loco, which still uses this global variable. If you agree, this is a bug, I can prepare a similar fix for the QSB. Maybe it makes sense to move the dram_init functions for both boards into something like boards/freescale/common/mx53_dram.c But be aware I have no QSB at hand and could only compile test that patch for mx53loco. --- board/beckhoff/mx53cx9020/mx53cx9020.c | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) diff --git a/board/beckhoff/mx53cx9020/mx53cx9020.c b/board/beckhoff/mx53cx9020/mx53cx9020.c index 021bd967c4..d8bdfc27bb 100644 --- a/board/beckhoff/mx53cx9020/mx53cx9020.c +++ b/board/beckhoff/mx53cx9020/mx53cx9020.c @@ -59,8 +59,6 @@ static const u32 CCAT_MODE_RUN = 0x0033DC8F; DECLARE_GLOBAL_DATA_PTR; -static uint32_t mx53_dram_size[2]; - phys_size_t get_effective_memsize(void) { /* @@ -74,15 +72,13 @@ phys_size_t get_effective_memsize(void) * U-Boot into invalid memory area close to the end of the first * DRAM bank. */ - return mx53_dram_size[0]; + return get_ram_size((void *)PHYS_SDRAM_1, 1 << 30); } int dram_init(void) { - mx53_dram_size[0] = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30); - mx53_dram_size[1] = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30); - - gd->ram_size = mx53_dram_size[0] + mx53_dram_size[1]; + gd->ram_size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30); + gd->ram_size += get_ram_size((void *)PHYS_SDRAM_2, 1 << 30); return 0; } @@ -90,10 +86,10 @@ int dram_init(void) int dram_init_banksize(void) { gd->bd->bi_dram[0].start = PHYS_SDRAM_1; - gd->bd->bi_dram[0].size = mx53_dram_size[0]; + gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1, 1 << 30); gd->bd->bi_dram[1].start = PHYS_SDRAM_2; - gd->bd->bi_dram[1].size = mx53_dram_size[1]; + gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2, 1 << 30); return 0; }