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0ae76531 DF |
1 | /* |
2 | * (C) Copyright 2013 | |
3 | * David Feng <fenghua@phytium.com.cn> | |
4 | * | |
5 | * SPDX-License-Identifier: GPL-2.0+ | |
6 | */ | |
7 | ||
8 | #include <common.h> | |
9 | #include <linux/compiler.h> | |
64982915 | 10 | #include <efi_loader.h> |
0ae76531 DF |
11 | |
12 | ||
13 | int interrupt_init(void) | |
14 | { | |
15 | return 0; | |
16 | } | |
17 | ||
18 | void enable_interrupts(void) | |
19 | { | |
20 | return; | |
21 | } | |
22 | ||
23 | int disable_interrupts(void) | |
24 | { | |
25 | return 0; | |
26 | } | |
27 | ||
28 | void show_regs(struct pt_regs *regs) | |
29 | { | |
30 | int i; | |
31 | ||
32 | printf("ELR: %lx\n", regs->elr); | |
33 | printf("LR: %lx\n", regs->regs[30]); | |
34 | for (i = 0; i < 29; i += 2) | |
35 | printf("x%-2d: %016lx x%-2d: %016lx\n", | |
36 | i, regs->regs[i], i+1, regs->regs[i+1]); | |
37 | printf("\n"); | |
38 | } | |
39 | ||
40 | /* | |
41 | * do_bad_sync handles the impossible case in the Synchronous Abort vector. | |
42 | */ | |
43 | void do_bad_sync(struct pt_regs *pt_regs, unsigned int esr) | |
44 | { | |
64982915 | 45 | efi_restore_gd(); |
0ae76531 DF |
46 | printf("Bad mode in \"Synchronous Abort\" handler, esr 0x%08x\n", esr); |
47 | show_regs(pt_regs); | |
48 | panic("Resetting CPU ...\n"); | |
49 | } | |
50 | ||
51 | /* | |
52 | * do_bad_irq handles the impossible case in the Irq vector. | |
53 | */ | |
54 | void do_bad_irq(struct pt_regs *pt_regs, unsigned int esr) | |
55 | { | |
64982915 | 56 | efi_restore_gd(); |
0ae76531 DF |
57 | printf("Bad mode in \"Irq\" handler, esr 0x%08x\n", esr); |
58 | show_regs(pt_regs); | |
59 | panic("Resetting CPU ...\n"); | |
60 | } | |
61 | ||
62 | /* | |
63 | * do_bad_fiq handles the impossible case in the Fiq vector. | |
64 | */ | |
65 | void do_bad_fiq(struct pt_regs *pt_regs, unsigned int esr) | |
66 | { | |
64982915 | 67 | efi_restore_gd(); |
0ae76531 DF |
68 | printf("Bad mode in \"Fiq\" handler, esr 0x%08x\n", esr); |
69 | show_regs(pt_regs); | |
70 | panic("Resetting CPU ...\n"); | |
71 | } | |
72 | ||
73 | /* | |
74 | * do_bad_error handles the impossible case in the Error vector. | |
75 | */ | |
76 | void do_bad_error(struct pt_regs *pt_regs, unsigned int esr) | |
77 | { | |
64982915 | 78 | efi_restore_gd(); |
0ae76531 DF |
79 | printf("Bad mode in \"Error\" handler, esr 0x%08x\n", esr); |
80 | show_regs(pt_regs); | |
81 | panic("Resetting CPU ...\n"); | |
82 | } | |
83 | ||
84 | /* | |
85 | * do_sync handles the Synchronous Abort exception. | |
86 | */ | |
87 | void do_sync(struct pt_regs *pt_regs, unsigned int esr) | |
88 | { | |
64982915 | 89 | efi_restore_gd(); |
0ae76531 DF |
90 | printf("\"Synchronous Abort\" handler, esr 0x%08x\n", esr); |
91 | show_regs(pt_regs); | |
92 | panic("Resetting CPU ...\n"); | |
93 | } | |
94 | ||
95 | /* | |
96 | * do_irq handles the Irq exception. | |
97 | */ | |
98 | void do_irq(struct pt_regs *pt_regs, unsigned int esr) | |
99 | { | |
64982915 | 100 | efi_restore_gd(); |
0ae76531 DF |
101 | printf("\"Irq\" handler, esr 0x%08x\n", esr); |
102 | show_regs(pt_regs); | |
103 | panic("Resetting CPU ...\n"); | |
104 | } | |
105 | ||
106 | /* | |
107 | * do_fiq handles the Fiq exception. | |
108 | */ | |
109 | void do_fiq(struct pt_regs *pt_regs, unsigned int esr) | |
110 | { | |
64982915 | 111 | efi_restore_gd(); |
0ae76531 DF |
112 | printf("\"Fiq\" handler, esr 0x%08x\n", esr); |
113 | show_regs(pt_regs); | |
114 | panic("Resetting CPU ...\n"); | |
115 | } | |
116 | ||
117 | /* | |
118 | * do_error handles the Error exception. | |
119 | * Errors are more likely to be processor specific, | |
120 | * it is defined with weak attribute and can be redefined | |
121 | * in processor specific code. | |
122 | */ | |
123 | void __weak do_error(struct pt_regs *pt_regs, unsigned int esr) | |
124 | { | |
64982915 | 125 | efi_restore_gd(); |
0ae76531 DF |
126 | printf("\"Error\" handler, esr 0x%08x\n", esr); |
127 | show_regs(pt_regs); | |
128 | panic("Resetting CPU ...\n"); | |
129 | } |