From patchwork Fri Dec 3 15:12:50 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?David_M=C3=BCller_=28ELSOFT_AG=29?= X-Patchwork-Id: 74156 X-Patchwork-Delegate: albert.aribaud@free.fr Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from theia.denx.de (theia.denx.de [85.214.87.163]) by ozlabs.org (Postfix) with ESMTP id 7881DB70A7 for ; Sat, 4 Dec 2010 02:12:46 +1100 (EST) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 02B8228148; Fri, 3 Dec 2010 16:12:45 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id b85hNaAWQX5n; Fri, 3 Dec 2010 16:12:44 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 1C6C12815B; Fri, 3 Dec 2010 16:12:44 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 233BA2815B for ; Fri, 3 Dec 2010 16:12:41 +0100 (CET) X-Virus-Scanned: Debian amavisd-new at theia.denx.de Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Xk6uU1EWN-a7 for ; Fri, 3 Dec 2010 16:12:39 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from mail4.hostpark.net (mail4.hostpark.net [212.243.197.34]) by theia.denx.de (Postfix) with ESMTPS id 083DF28148 for ; Fri, 3 Dec 2010 16:12:37 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by mail4.hostpark.net (Postfix) with ESMTP id EBDFB4BF16; Fri, 3 Dec 2010 16:12:36 +0100 (CET) X-Virus-Scanned: by Hostpark/NetZone Mailprotection at hostpark.net Received: from mail4.hostpark.net ([127.0.0.1]) by localhost (mail4.hostpark.net [127.0.0.1]) (amavisd-new, port 10124) with ESMTP id IENhZcyCSDoW; Fri, 3 Dec 2010 16:12:36 +0100 (CET) Received: from localhost.localdomain (80-218-33-144.dclient.hispeed.ch [80.218.33.144]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail4.hostpark.net (Postfix) with ESMTP id 73B744BEF4; Fri, 3 Dec 2010 16:12:36 +0100 (CET) From: =?UTF-8?q?David=20M=C3=BCller?= To: u-boot@lists.denx.de Date: Fri, 3 Dec 2010 16:12:50 +0100 Message-Id: <1291389170-5277-1-git-send-email-d.mueller@elsoft.ch> X-Mailer: git-send-email 1.7.1 Cc: =?UTF-8?q?David=20M=C3=BCller?= , Albert ARIBAUD Subject: [U-Boot] [PATCH] add print_cpuinfo to s3c24x0 X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.9 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Mime-version: 1.0 Sender: u-boot-bounces@lists.denx.de Errors-To: u-boot-bounces@lists.denx.de Hello This patch adds support for "print_cpuinfo" on Samsung s3c24x0 based targets. If activated by "#define CONFIG_DISPLAY_CPUINFO", the chip ID and the 3 main cpu frequencies will be displayed. Dave Signed-off-by: David Müller diff --git a/arch/arm/cpu/arm920t/s3c24x0/Makefile b/arch/arm/cpu/arm920t/s3c24x0/Makefile index bd53724..0029700 100644 --- a/arch/arm/cpu/arm920t/s3c24x0/Makefile +++ b/arch/arm/cpu/arm920t/s3c24x0/Makefile @@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk LIB = $(obj)lib$(SOC).o COBJS-$(CONFIG_USE_IRQ) += interrupts.o +COBJS-$(CONFIG_DISPLAY_CPUINFO) += cpu_info.o COBJS-y += speed.o COBJS-y += timer.o COBJS-y += usb.o diff --git a/arch/arm/cpu/arm920t/s3c24x0/cpu_info.c b/arch/arm/cpu/arm920t/s3c24x0/cpu_info.c new file mode 100644 index 0000000..14c5c6a --- /dev/null +++ b/arch/arm/cpu/arm920t/s3c24x0/cpu_info.c @@ -0,0 +1,54 @@ +/* + * (C) Copyright 2010 + * David Mueller + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include + +typedef ulong (*getfreq)(void); + +static const getfreq freq_f[] = { + get_FCLK, + get_HCLK, + get_PCLK, +}; + +static const char freq_c[] = { 'F', 'H', 'P' }; + +int print_cpuinfo(void) +{ + int i; + char buf[32]; +/* the S3C2400 seems to be lacking a CHIP ID register */ +#ifndef CONFIG_S3C2400 + ulong cpuid; + struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio(); + + cpuid = readl(&gpio->gstatus1); + printf("CPUID: %8lX\n", cpuid); +#endif + for (i = 0; i < ARRAY_SIZE(freq_f); i++) + printf("%cCLK: %8s MHz\n", freq_c[i], strmhz(buf, freq_f[i]())); + + return 0; +}