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/stddef.h> 19 #include <linux/kernel.h> 20 #include <linux/init.h> 21 #include <linux/errno.h> 22 #include <linux/reboot.h> 23 #include <linux/kdev_t.h> 24 #include <linux/types.h> 25 #include <linux/major.h> 26 #include <linux/blkdev.h> 27 #include <linux/console.h> 28 #include <linux/delay.h> 29 #include <linux/stringify.h> 30 #include <linux/notifier.h> 31 32 #include <asm/platform.h> 33 #include <asm/bootparam.h> 34 35 #include <platform/simcall.h> 36 37 38 void __init platform_init(bp_tag_t* bootparam) 39 { 40 41 } 42 43 void platform_halt(void) 44 { 45 pr_info(" ** Called platform_halt() **\n"); 46 simc_exit(0); 47 } 48 49 void platform_power_off(void) 50 { 51 pr_info(" ** Called platform_power_off() **\n"); 52 simc_exit(0); 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 cpu_reset(); 59 /* control never gets here */ 60 } 61 62 extern void iss_net_poll(void); 63 64 const char twirl[]="|/-\\|/-\\"; 65 66 void platform_heartbeat(void) 67 { 68 #if 0 69 static int i = 0, j = 0; 70 71 if (--i < 0) { 72 i = 99; 73 printk("\r%c\r", twirl[j++]); 74 if (j == 8) 75 j = 0; 76 } 77 #endif 78 } 79 80 81 82 static int 83 iss_panic_event(struct notifier_block *this, unsigned long event, void *ptr) 84 { 85 simc_exit(1); 86 return NOTIFY_DONE; 87 } 88 89 static struct notifier_block iss_panic_block = { 90 iss_panic_event, 91 NULL, 92 0 93 }; 94 95 void __init platform_setup(char **p_cmdline) 96 { 97 atomic_notifier_chain_register(&panic_notifier_list, &iss_panic_block); 98 } 99