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Diffstat (limited to 'arch/xtensa/kernel/platform.c')
| -rw-r--r-- | arch/xtensa/kernel/platform.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/platform.c b/arch/xtensa/kernel/platform.c new file mode 100644 index 0000000000..926b8bf0f1 --- /dev/null +++ b/arch/xtensa/kernel/platform.c @@ -0,0 +1,44 @@ +/* + * 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 <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 10MHz.\n"); + ccount_freq = 10 * 1000000UL; +} +#endif |