Hi David,

Le 03/12/2010 16:12, David Müller a écrit :

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 Müllerd.mueller@elsoft.ch

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 Muellerd.mueller@elsoft.ch
• • 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<common.h> +#include<asm/io.h> +#include<asm/arch/s3c24x0_cpu.h>

+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;

+}

For some reason and despite David's pings, I'd missed this roughly one-year-old patch. Applied to u-boot-arm/master, with apologies for the delay. :(

Note:

include/configs/VCMA9.h:/* to be activated as soon as s3c24x0 has print_cpuinfo include/configs/smdk2410.h:/* may be activated as soon as s3c24x0 has print_cpuinfo

Amicalement,