arm64: dts: Revert "specify console via command line"
[linux/fpc-iii.git] / arch / xtensa / include / asm / timex.h
blob233ec75e60c696814219e7d37eeb5e585b0f8259
1 /*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
6 * Copyright (C) 2001 - 2013 Tensilica Inc.
7 */
9 #ifndef _XTENSA_TIMEX_H
10 #define _XTENSA_TIMEX_H
12 #include <asm/processor.h>
14 #if XCHAL_NUM_TIMERS > 0 && \
15 XTENSA_INT_LEVEL(XCHAL_TIMER0_INTERRUPT) <= XCHAL_EXCM_LEVEL
16 # define LINUX_TIMER 0
17 # define LINUX_TIMER_INT XCHAL_TIMER0_INTERRUPT
18 #elif XCHAL_NUM_TIMERS > 1 && \
19 XTENSA_INT_LEVEL(XCHAL_TIMER1_INTERRUPT) <= XCHAL_EXCM_LEVEL
20 # define LINUX_TIMER 1
21 # define LINUX_TIMER_INT XCHAL_TIMER1_INTERRUPT
22 #elif XCHAL_NUM_TIMERS > 2 && \
23 XTENSA_INT_LEVEL(XCHAL_TIMER2_INTERRUPT) <= XCHAL_EXCM_LEVEL
24 # define LINUX_TIMER 2
25 # define LINUX_TIMER_INT XCHAL_TIMER2_INTERRUPT
26 #else
27 # error "Bad timer number for Linux configurations!"
28 #endif
30 extern unsigned long ccount_freq;
32 typedef unsigned long long cycles_t;
34 #define get_cycles() (0)
36 void local_timer_setup(unsigned cpu);
39 * Register access.
42 static inline unsigned long get_ccount (void)
44 return xtensa_get_sr(ccount);
47 static inline void set_ccount (unsigned long ccount)
49 xtensa_set_sr(ccount, ccount);
52 static inline unsigned long get_linux_timer (void)
54 return xtensa_get_sr(SREG_CCOMPARE + LINUX_TIMER);
57 static inline void set_linux_timer (unsigned long ccompare)
59 xtensa_set_sr(ccompare, SREG_CCOMPARE + LINUX_TIMER);
62 #endif /* _XTENSA_TIMEX_H */