u-boot-brain/arch/arm/cpu/armv7/rmobile/cpu_info.c

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/*
* (C) Copyright 2012 Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
* (C) Copyright 2012 Renesas Solutions Corp.
*
* 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/rmobile.h>
#ifdef CONFIG_ARCH_CPU_INIT
int arch_cpu_init(void)
{
icache_enable();
return 0;
}
#endif
#ifndef CONFIG_SYS_DCACHE_OFF
void enable_caches(void)
{
dcache_enable();
}
#endif
#ifdef CONFIG_DISPLAY_CPUINFO
static u32 get_cpu_type(void)
{
u32 id;
u32 type;
id = readl(CCCR);
type = (id >> 8) & 0xFF;
return type;
}
static u32 get_cpu_rev(void)
{
u32 id;
u32 rev;
id = readl(CCCR);
rev = (id >> 4) & 0xF;
return rev;
}
int print_cpuinfo(void)
{
switch (get_cpu_type()) {
default:
printf("CPU: Renesas Electronics CPU rev %d\n", get_cpu_rev());
break;
}
return 0;
}
#endif