mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 03:33:59 +08:00
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
|
/*
|
||
|
|
* 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/config.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/pci.h>
|
||
|
|
#include <linux/time.h>
|
||
|
|
#include <asm/platform.h>
|
||
|
|
#include <asm/timex.h>
|
||
|
|
|
||
|
|
#define _F(r,f,a,b) \
|
||
|
|
r __platform_##f a b; \
|
||
|
|
r platform_##f a __attribute__((weak, alias("__platform_"#f)))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Default functions that are used if no platform specific function is defined.
|
||
|
|
* (Please, refer to include/asm-xtensa/platform.h for more information)
|
||
|
|
*/
|
||
|
|
|
||
|
|
_F(void, setup, (char** cmd), { });
|
||
|
|
_F(void, init_irq, (void), { });
|
||
|
|
_F(void, restart, (void), { while(1); });
|
||
|
|
_F(void, halt, (void), { while(1); });
|
||
|
|
_F(void, power_off, (void), { while(1); });
|
||
|
|
_F(void, idle, (void), { __asm__ __volatile__ ("waiti 0" ::: "memory"); });
|
||
|
|
_F(void, heartbeat, (void), { });
|
||
|
|
_F(int, pcibios_fixup, (void), { return 0; });
|
||
|
|
_F(int, get_rtc_time, (time_t* t), { return 0; });
|
||
|
|
_F(int, set_rtc_time, (time_t t), { return 0; });
|
||
|
|
|
||
|
|
#if CONFIG_XTENSA_CALIBRATE_CCOUNT
|
||
|
|
_F(void, calibrate_ccount, (void),
|
||
|
|
{
|
||
|
|
printk ("ERROR: Cannot calibrate cpu frequency! Assuming 100MHz.\n");
|
||
|
|
ccount_per_jiffy = 100 * (1000000UL/HZ);
|
||
|
|
});
|
||
|
|
#endif
|
||
|
|
|