projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 7282bee7 CZ |
1 | /* |
| 2 | * | |
| 3 | * arch/xtensa/platform-iss/setup.c | |
| 4 | * | |
| 5 | * Platform specific initialization. | |
| 6 | * | |
| 7 | * Authors: Chris Zankel <chris@zankel.net> | |
| 8 | * Joe Taylor <joe@tensilica.com> | |
| 9 | * | |
| 10 | * Copyright 2001 - 2005 Tensilica Inc. | |
| 11 | * | |
| 12 | * This program is free software; you can redistribute it and/or modify it | |
| 13 | * under the terms of the GNU General Public License as published by the | |
| 14 | * Free Software Foundation; either version 2 of the License, or (at your | |
| 15 | * option) any later version. | |
| 16 | * | |
| 17 | */ | |
| 18 | #include <linux/config.h> | |
| 19 | #include <linux/stddef.h> | |
| 20 | #include <linux/kernel.h> | |
| 21 | #include <linux/init.h> | |
| 22 | #include <linux/errno.h> | |
| 23 | #include <linux/reboot.h> | |
| 24 | #include <linux/pci.h> | |
| 25 | #include <linux/kdev_t.h> | |
| 26 | #include <linux/types.h> | |
| 27 | #include <linux/major.h> | |
| 28 | #include <linux/blkdev.h> | |
| 29 | #include <linux/console.h> | |
| 30 | #include <linux/delay.h> | |
| 31 | #include <linux/stringify.h> | |
| 32 | #include <linux/notifier.h> | |
| 33 | ||
| 34 | #include <asm/platform.h> | |
| 35 | #include <asm/bootparam.h> | |
| 36 | ||
| 37 | ||
| 38 | void __init platform_init(bp_tag_t* bootparam) | |
| 39 | { | |
| 40 | ||
| 41 | } | |
| 42 | ||
| 43 | void platform_halt(void) | |
| 44 | { | |
| 45 | printk (" ** Called platform_halt(), looping forever! **\n"); | |
| 46 | while (1); | |
| 47 | } | |
| 48 | ||
| 49 | void platform_power_off(void) | |
| 50 | { | |
| 51 | printk (" ** Called platform_power_off(), looping forever! **\n"); | |
| 52 | while (1); | |
| 53 | } | |
| 54 | void platform_restart(void) | |
| 55 | { | |
| 56 | /* Flush and reset the mmu, simulate a processor reset, and | |
| 57 | * jump to the reset vector. */ | |
| 58 | ||
| 59 | __asm__ __volatile__("movi a2, 15\n\t" | |
| 60 | "wsr a2, " __stringify(ICOUNTLEVEL) "\n\t" | |
| 61 | "movi a2, 0\n\t" | |
| 62 | "wsr a2, " __stringify(ICOUNT) "\n\t" | |
| 63 | "wsr a2, " __stringify(IBREAKENABLE) "\n\t" | |
| 64 | "wsr a2, " __stringify(LCOUNT) "\n\t" | |
| 65 | "movi a2, 0x1f\n\t" | |
| 66 | "wsr a2, " __stringify(PS) "\n\t" | |
| 67 | "isync\n\t" | |
| 68 | "jx %0\n\t" | |
| 69 | : | |
| 70 | : "a" (XCHAL_RESET_VECTOR_VADDR) | |
| 71 | : "a2"); | |
| 72 | ||
| 73 | /* control never gets here */ | |
| 74 | } | |
| 75 | ||
| 76 | extern void iss_net_poll(void); | |
| 77 | ||
| 78 | const char twirl[]="|/-\\|/-\\"; | |
| 79 | ||
| 80 | void platform_heartbeat(void) | |
| 81 | { | |
| 82 | #if 0 | |
| 83 | static int i = 0, j = 0; | |
| 84 | ||
| 85 | if (--i < 0) { | |
| 86 | i = 99; | |
| 87 | printk("\r%c\r", twirl[j++]); | |
| 88 | if (j == 8) | |
| 89 | j = 0; | |
| 90 | } | |
| 91 | #endif | |
| 92 | } | |
| 93 | ||
| 94 | ||
| 95 | ||
| 96 | static int | |
| 97 | iss_panic_event(struct notifier_block *this, unsigned long event, void *ptr) | |
| 98 | { | |
| 99 | __asm__ __volatile__("movi a2, -1; simcall\n"); | |
| 100 | return NOTIFY_DONE; | |
| 101 | } | |
| 102 | ||
| 103 | static struct notifier_block iss_panic_block = { | |
| 104 | iss_panic_event, | |
| 105 | NULL, | |
| 106 | 0 | |
| 107 | }; | |
| 108 | ||
| 109 | void __init platform_setup(char **p_cmdline) | |
| 110 | { | |
| e041c683 | 111 | atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block); |
| 7282bee7 | 112 | } |