mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-12 07:57:21 +00:00
100 lines
2.2 KiB
C
100 lines
2.2 KiB
C
/*
|
|
*
|
|
* Common functions for OMAP4 based boards
|
|
*
|
|
* (C) Copyright 2010
|
|
* Texas Instruments, <www.ti.com>
|
|
*
|
|
* Author :
|
|
* Aneesh V <aneesh@ti.com>
|
|
* Steve Sakoman <steve@sakoman.com>
|
|
*
|
|
* 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/arch/cpu.h>
|
|
#include <asm/arch/sys_proto.h>
|
|
|
|
/*
|
|
* Routine: s_init
|
|
* Description: Does early system init of muxing and clocks.
|
|
* - Called path is with SRAM stack.
|
|
*/
|
|
void s_init(void)
|
|
{
|
|
watchdog_init();
|
|
}
|
|
|
|
/*
|
|
* Routine: wait_for_command_complete
|
|
* Description: Wait for posting to finish on watchdog
|
|
*/
|
|
void wait_for_command_complete(struct watchdog *wd_base)
|
|
{
|
|
int pending = 1;
|
|
do {
|
|
pending = readl(&wd_base->wwps);
|
|
} while (pending);
|
|
}
|
|
|
|
/*
|
|
* Routine: watchdog_init
|
|
* Description: Shut down watch dogs
|
|
*/
|
|
void watchdog_init(void)
|
|
{
|
|
struct watchdog *wd2_base = (struct watchdog *)WDT2_BASE;
|
|
|
|
writel(WD_UNLOCK1, &wd2_base->wspr);
|
|
wait_for_command_complete(wd2_base);
|
|
writel(WD_UNLOCK2, &wd2_base->wspr);
|
|
}
|
|
|
|
/*
|
|
* Routine: dram_init
|
|
* Description: sets uboots idea of sdram size
|
|
*/
|
|
int dram_init(void)
|
|
{
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
gd->bd->bi_dram[0].start = 0x80000000;
|
|
gd->bd->bi_dram[0].size = 512 << 20;
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Print board information
|
|
*/
|
|
int checkboard(void)
|
|
{
|
|
puts(sysinfo.board_string);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* This function is called by start_armboot. You can reliably use static
|
|
* data. Any boot-time function that require static data should be
|
|
* called from here
|
|
*/
|
|
int arch_cpu_init(void)
|
|
{
|
|
set_muxconf_regs();
|
|
return 0;
|
|
}
|