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/*
* Copyright (C) 2005-2006 Atmel Corporation
*
* 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 <command.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <asm/sysreg.h>
#include <asm/arch/memory-map.h>
#include <asm/arch/platform.h>
#include "hsmc3.h"
DECLARE_GLOBAL_DATA_PTR;
int cpu_init(void)
{
const struct device *hebi;
extern void _evba(void);
char *p;
gd->cpu_hz = CFG_OSC0_HZ;
/* fff03400: 00010001 04030402 00050005 10011103 */
hebi = get_device(DEVICE_HEBI);
hsmc3_writel(hebi, MODE0, 0x00031103);
hsmc3_writel(hebi, CYCLE0, 0x000c000d);
hsmc3_writel(hebi, PULSE0, 0x0b0a0906);
hsmc3_writel(hebi, SETUP0, 0x00010002);
pm_init();
sysreg_write(EVBA, (unsigned long)&_evba);
asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET));
gd->console_uart = get_device(CFG_CONSOLE_UART_DEV);
/* Lock everything that mess with the flash in the icache */
for (p = __flashprog_start; p <= (__flashprog_end + CFG_ICACHE_LINESZ);
p += CFG_ICACHE_LINESZ)
asm volatile("cache %0, 0x02" : "=m"(*p) :: "memory");
return 0;
}
void prepare_to_boot(void)
{
/* Flush both caches and the write buffer */
asm volatile("cache %0[4], 010\n\t"
"cache %0[0], 000\n\t"
"sync 0" : : "r"(0) : "memory");
}
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
/* This will reset the CPU core, caches, MMU and all internal busses */
__builtin_mtdr(8, 1 << 13); /* set DC:DBE */
__builtin_mtdr(8, 1 << 30); /* set DC:RES */
/* Flush the pipeline before we declare it a failure */
asm volatile("sub pc, pc, -4");
return -1;
}
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