projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | /* |
| 2 | * This file is subject to the terms and conditions of the GNU General Public | |
| 3 | * License. See the file "COPYING" in the main directory of this archive | |
| 4 | * for more details. | |
| 5 | * | |
| 6 | * Reset an IP27. | |
| 7 | * | |
| fcdb27ad | 8 | * Copyright (C) 1997, 1998, 1999, 2000, 06 by Ralf Baechle |
| 1da177e4 LT |
9 | * Copyright (C) 1999, 2000 Silicon Graphics, Inc. |
| 10 | */ | |
| 1da177e4 LT |
11 | #include <linux/kernel.h> |
| 12 | #include <linux/sched.h> | |
| 13 | #include <linux/timer.h> | |
| 14 | #include <linux/smp.h> | |
| 15 | #include <linux/mmzone.h> | |
| 16 | #include <linux/nodemask.h> | |
| fcdb27ad | 17 | #include <linux/pm.h> |
| 1da177e4 LT |
18 | |
| 19 | #include <asm/io.h> | |
| 20 | #include <asm/irq.h> | |
| 21 | #include <asm/reboot.h> | |
| 1da177e4 LT |
22 | #include <asm/sgialib.h> |
| 23 | #include <asm/sn/addrs.h> | |
| 24 | #include <asm/sn/arch.h> | |
| 25 | #include <asm/sn/gda.h> | |
| 26 | #include <asm/sn/sn0/hub.h> | |
| 27 | ||
| 28 | void machine_restart(char *command) __attribute__((noreturn)); | |
| 29 | void machine_halt(void) __attribute__((noreturn)); | |
| 30 | void machine_power_off(void) __attribute__((noreturn)); | |
| 31 | ||
| 32 | #define noreturn while(1); /* Silence gcc. */ | |
| 33 | ||
| 34 | /* XXX How to pass the reboot command to the firmware??? */ | |
| 35 | static void ip27_machine_restart(char *command) | |
| 36 | { | |
| 37 | #if 0 | |
| 38 | int i; | |
| 39 | #endif | |
| 40 | ||
| 41 | printk("Reboot started from CPU %d\n", smp_processor_id()); | |
| 42 | #ifdef CONFIG_SMP | |
| 43 | smp_send_stop(); | |
| 44 | #endif | |
| 45 | #if 0 | |
| 46 | for_each_online_node(i) | |
| 47 | REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG, | |
| 48 | PROMOP_REBOOT); | |
| 49 | #else | |
| 50 | LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET); | |
| 51 | #endif | |
| 52 | noreturn; | |
| 53 | } | |
| 54 | ||
| 55 | static void ip27_machine_halt(void) | |
| 56 | { | |
| 57 | int i; | |
| 58 | ||
| 59 | #ifdef CONFIG_SMP | |
| 60 | smp_send_stop(); | |
| 61 | #endif | |
| 62 | for_each_online_node(i) | |
| 63 | REMOTE_HUB_S(COMPACT_TO_NASID_NODEID(i), PROMOP_REG, | |
| 64 | PROMOP_RESTART); | |
| 65 | LOCAL_HUB_S(NI_PORT_RESET, NPR_PORTRESET | NPR_LOCALRESET); | |
| 66 | noreturn; | |
| 67 | } | |
| 68 | ||
| 69 | static void ip27_machine_power_off(void) | |
| 70 | { | |
| 71 | /* To do ... */ | |
| 72 | noreturn; | |
| 73 | } | |
| 74 | ||
| 75 | void ip27_reboot_setup(void) | |
| 76 | { | |
| 77 | _machine_restart = ip27_machine_restart; | |
| 78 | _machine_halt = ip27_machine_halt; | |
| fcdb27ad | 79 | pm_power_off = ip27_machine_power_off; |
| 1da177e4 | 80 | } |