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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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4d1da8c296
[Ralf: Fixed up reject and Wu's complaints about comment style.] Signed-off-by: Alexander Clouter <alex@digriz.org.uk> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/921/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*
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* Carsten Langgaard, carstenl@mips.com
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* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
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*
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* This program is free software; you can distribute it and/or modify it
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* under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
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*/
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#include <linux/init.h>
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#include <linux/ioport.h>
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#include <linux/pm.h>
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#include <linux/time.h>
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#include <asm/reboot.h>
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#include <asm/mach-ar7/ar7.h>
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#include <asm/mach-ar7/prom.h>
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static void ar7_machine_restart(char *command)
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{
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u32 *softres_reg = ioremap(AR7_REGS_RESET + AR7_RESET_SOFTWARE, 1);
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writel(1, softres_reg);
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}
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static void ar7_machine_halt(void)
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{
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while (1)
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;
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}
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static void ar7_machine_power_off(void)
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{
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u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1);
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u32 power_state = readl(power_reg) | (3 << 30);
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writel(power_state, power_reg);
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ar7_machine_halt();
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}
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const char *get_system_type(void)
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{
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u16 chip_id = ar7_chip_id();
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switch (chip_id) {
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case AR7_CHIP_7100:
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return "TI AR7 (TNETD7100)";
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case AR7_CHIP_7200:
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return "TI AR7 (TNETD7200)";
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case AR7_CHIP_7300:
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return "TI AR7 (TNETD7300)";
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default:
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return "TI AR7 (unknown)";
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}
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}
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static int __init ar7_init_console(void)
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{
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return 0;
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}
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console_initcall(ar7_init_console);
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/*
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* Initializes basic routines and structures pointers, memory size (as
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* given by the bios and saves the command line.
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*/
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void __init plat_mem_setup(void)
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{
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unsigned long io_base;
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_machine_restart = ar7_machine_restart;
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_machine_halt = ar7_machine_halt;
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pm_power_off = ar7_machine_power_off;
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panic_timeout = 3;
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io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000);
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if (!io_base)
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panic("Can't remap IO base!\n");
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set_io_port_base(io_base);
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prom_meminit();
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printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n",
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get_system_type(), ar7_chip_id(), ar7_chip_rev());
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}
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