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9fd6826611
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 <d.mueller@elsoft.ch>
55 lines
1.5 KiB
C
55 lines
1.5 KiB
C
/*
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* (C) Copyright 2010
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* David Mueller <d.mueller@elsoft.ch>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/s3c24x0_cpu.h>
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typedef ulong (*getfreq)(void);
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static const getfreq freq_f[] = {
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get_FCLK,
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get_HCLK,
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get_PCLK,
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};
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static const char freq_c[] = { 'F', 'H', 'P' };
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int print_cpuinfo(void)
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{
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int i;
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char buf[32];
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/* the S3C2400 seems to be lacking a CHIP ID register */
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#ifndef CONFIG_S3C2400
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ulong cpuid;
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struct s3c24x0_gpio * const gpio = s3c24x0_get_base_gpio();
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cpuid = readl(&gpio->gstatus1);
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printf("CPUID: %8lX\n", cpuid);
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#endif
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for (i = 0; i < ARRAY_SIZE(freq_f); i++)
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printf("%cCLK: %8s MHz\n", freq_c[i], strmhz(buf, freq_f[i]()));
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return 0;
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}
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