94 строки
2.3 KiB
C
94 строки
2.3 KiB
C
/*
|
|
* Carsten Langgaard, carstenl@mips.com
|
|
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
|
|
*
|
|
* This program is free software; you can distribute it and/or modify it
|
|
* under the terms of the GNU General Public License (Version 2) as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope 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 <linux/init.h>
|
|
#include <linux/ioport.h>
|
|
#include <linux/pm.h>
|
|
#include <linux/time.h>
|
|
|
|
#include <asm/reboot.h>
|
|
#include <asm/mach-ar7/ar7.h>
|
|
#include <asm/mach-ar7/prom.h>
|
|
|
|
static void ar7_machine_restart(char *command)
|
|
{
|
|
u32 *softres_reg = ioremap(AR7_REGS_RESET +
|
|
AR7_RESET_SOFTWARE, 1);
|
|
writel(1, softres_reg);
|
|
}
|
|
|
|
static void ar7_machine_halt(void)
|
|
{
|
|
while (1)
|
|
;
|
|
}
|
|
|
|
static void ar7_machine_power_off(void)
|
|
{
|
|
u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
|
|
u32 power_state = readl(power_reg) | (3 << 30);
|
|
writel(power_state, power_reg);
|
|
ar7_machine_halt();
|
|
}
|
|
|
|
const char *get_system_type(void)
|
|
{
|
|
u16 chip_id = ar7_chip_id();
|
|
switch (chip_id) {
|
|
case AR7_CHIP_7300:
|
|
return "TI AR7 (TNETD7300)";
|
|
case AR7_CHIP_7100:
|
|
return "TI AR7 (TNETD7100)";
|
|
case AR7_CHIP_7200:
|
|
return "TI AR7 (TNETD7200)";
|
|
default:
|
|
return "TI AR7 (Unknown)";
|
|
}
|
|
}
|
|
|
|
static int __init ar7_init_console(void)
|
|
{
|
|
return 0;
|
|
}
|
|
console_initcall(ar7_init_console);
|
|
|
|
/*
|
|
* Initializes basic routines and structures pointers, memory size (as
|
|
* given by the bios and saves the command line.
|
|
*/
|
|
|
|
void __init plat_mem_setup(void)
|
|
{
|
|
unsigned long io_base;
|
|
|
|
_machine_restart = ar7_machine_restart;
|
|
_machine_halt = ar7_machine_halt;
|
|
pm_power_off = ar7_machine_power_off;
|
|
panic_timeout = 3;
|
|
|
|
io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
|
|
if (!io_base)
|
|
panic("Can't remap IO base!\n");
|
|
set_io_port_base(io_base);
|
|
|
|
prom_meminit();
|
|
|
|
printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
|
|
get_system_type(),
|
|
ar7_chip_id(), ar7_chip_rev());
|
|
}
|