projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 7ca5dc14 FF |
1 | /* |
| 2 | * Carsten Langgaard, carstenl@mips.com | |
| 3 | * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved. | |
| 4 | * | |
| 5 | * This program is free software; you can distribute it and/or modify it | |
| 6 | * under the terms of the GNU General Public License (Version 2) as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT | |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 | * for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License along | |
| 15 | * with this program; if not, write to the Free Software Foundation, Inc., | |
| 16 | * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. | |
| 17 | */ | |
| 7ca5dc14 FF |
18 | #include <linux/init.h> |
| 19 | #include <linux/ioport.h> | |
| 20 | #include <linux/pm.h> | |
| 21 | #include <linux/time.h> | |
| 22 | ||
| 23 | #include <asm/reboot.h> | |
| 24 | #include <asm/mach-ar7/ar7.h> | |
| 25 | #include <asm/mach-ar7/prom.h> | |
| 26 | ||
| 27 | static void ar7_machine_restart(char *command) | |
| 28 | { | |
| 29 | u32 *softres_reg = ioremap(AR7_REGS_RESET + | |
| 30 | AR7_RESET_SOFTWARE, 1); | |
| 31 | writel(1, softres_reg); | |
| 32 | } | |
| 33 | ||
| 34 | static void ar7_machine_halt(void) | |
| 35 | { | |
| 36 | while (1) | |
| 37 | ; | |
| 38 | } | |
| 39 | ||
| 40 | static void ar7_machine_power_off(void) | |
| 41 | { | |
| 42 | u32 *power_reg = (u32 *)ioremap(AR7_REGS_POWER, 1); | |
| 43 | u32 power_state = readl(power_reg) | (3 << 30); | |
| 44 | writel(power_state, power_reg); | |
| 45 | ar7_machine_halt(); | |
| 46 | } | |
| 47 | ||
| 48 | const char *get_system_type(void) | |
| 49 | { | |
| 50 | u16 chip_id = ar7_chip_id(); | |
| 51 | switch (chip_id) { | |
| 52 | case AR7_CHIP_7300: | |
| 53 | return "TI AR7 (TNETD7300)"; | |
| 54 | case AR7_CHIP_7100: | |
| 55 | return "TI AR7 (TNETD7100)"; | |
| 56 | case AR7_CHIP_7200: | |
| 57 | return "TI AR7 (TNETD7200)"; | |
| 58 | default: | |
| 59 | return "TI AR7 (Unknown)"; | |
| 60 | } | |
| 61 | } | |
| 62 | ||
| 63 | static int __init ar7_init_console(void) | |
| 64 | { | |
| 65 | return 0; | |
| 66 | } | |
| 67 | console_initcall(ar7_init_console); | |
| 68 | ||
| 69 | /* | |
| 70 | * Initializes basic routines and structures pointers, memory size (as | |
| 71 | * given by the bios and saves the command line. | |
| 72 | */ | |
| 73 | ||
| 74 | void __init plat_mem_setup(void) | |
| 75 | { | |
| 76 | unsigned long io_base; | |
| 77 | ||
| 78 | _machine_restart = ar7_machine_restart; | |
| 79 | _machine_halt = ar7_machine_halt; | |
| 80 | pm_power_off = ar7_machine_power_off; | |
| 81 | panic_timeout = 3; | |
| 82 | ||
| 83 | io_base = (unsigned long)ioremap(AR7_REGS_BASE, 0x10000); | |
| 84 | if (!io_base) | |
| 85 | panic("Can't remap IO base!\n"); | |
| 86 | set_io_port_base(io_base); | |
| 87 | ||
| 88 | prom_meminit(); | |
| 89 | ||
| 90 | printk(KERN_INFO "%s, ID: 0x%04x, Revision: 0x%02x\n", | |
| 91 | get_system_type(), | |
| 92 | ar7_chip_id(), ar7_chip_rev()); | |
| 93 | } |