/* * arch/xtensa/kernel/platform.c * * Default platform functions. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * Copyright (C) 2005 Tensilica Inc. * * Chris Zankel <chris@zankel.net> */ #include <linux/printk.h> #include <linux/types.h> #include <linux/units.h> #include <asm/platform.h> #include <asm/timex.h> /* * Default functions that are used if no platform specific function is defined. * (Please, refer to arch/xtensa/include/asm/platform.h for more information) */ void __weak __init platform_init(bp_tag_t *first) { } void __weak __init platform_setup(char **cmd) { } void __weak platform_idle(void) { __asm__ __volatile__ ("waiti 0" ::: "memory"); } #ifdef CONFIG_XTENSA_CALIBRATE_CCOUNT void __weak platform_calibrate_ccount(void) { pr_err("ERROR: Cannot calibrate cpu frequency! Assuming 10 MHz.\n"); ccount_freq = 10 * HZ_PER_MHZ; } #endif