]>
Commit | Line | Data |
---|---|---|
c2f02da2 DH |
1 | /* |
2 | * (C) Copyright 2000-2002 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * (C) Copyright 2003 | |
6 | * Gleb Natapov <gnatapov@mrv.com> | |
7 | * | |
8 | * (C) Copyright 2007 | |
9 | * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. | |
10 | * | |
1a459660 | 11 | * SPDX-License-Identifier: GPL-2.0+ |
c2f02da2 DH |
12 | */ |
13 | ||
14 | #include <common.h> | |
15 | #include <asm/processor.h> | |
16 | #include <asm/irq.h> | |
17 | ||
18 | /* Implemented by SPARC CPUs */ | |
19 | extern int interrupt_init_cpu(void); | |
20 | extern void timer_interrupt_cpu(void *arg); | |
21 | extern int timer_interrupt_init_cpu(void); | |
22 | ||
23 | int intLock(void) | |
24 | { | |
25 | unsigned int pil; | |
26 | ||
27 | pil = get_pil(); | |
28 | ||
29 | /* set PIL to 15 ==> no pending interrupts will interrupt CPU */ | |
30 | set_pil(15); | |
31 | ||
32 | return pil; | |
33 | } | |
34 | ||
35 | void intUnlock(int oldLevel) | |
36 | { | |
37 | set_pil(oldLevel); | |
38 | } | |
39 | ||
40 | void enable_interrupts(void) | |
41 | { | |
42 | set_pil(0); /* enable all interrupts */ | |
43 | } | |
44 | ||
45 | int disable_interrupts(void) | |
46 | { | |
47 | return intLock(); | |
48 | } | |
49 | ||
f33f888d DH |
50 | int interrupt_is_enabled(void) |
51 | { | |
52 | if (get_pil() == 15) | |
53 | return 0; | |
54 | return 1; | |
55 | } | |
56 | ||
c2f02da2 DH |
57 | int interrupt_init(void) |
58 | { | |
59 | int ret; | |
60 | ||
61 | /* call cpu specific function from $(CPU)/interrupts.c */ | |
62 | ret = interrupt_init_cpu(); | |
63 | ||
64 | /* enable global interrupts */ | |
65 | enable_interrupts(); | |
66 | ||
67 | return ret; | |
68 | } |