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f046ccd1 EL |
1 | /* |
2 | * (C) Copyright 2000-2002 | |
3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
4 | * | |
5 | * Copyright 2004 Freescale Semiconductor, Inc. | |
6 | * | |
7 | * See file CREDITS for list of people who contributed to this | |
8 | * project. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or | |
11 | * modify it under the terms of the GNU General Public License as | |
12 | * published by the Free Software Foundation; either version 2 of | |
13 | * the License, or (at your option) any later version. | |
14 | * | |
15 | * This program is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | * GNU General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU General Public License | |
21 | * along with this program; if not, write to the Free Software | |
22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
23 | * MA 02111-1307 USA | |
f046ccd1 EL |
24 | */ |
25 | ||
26 | #include <common.h> | |
27 | #include <command.h> | |
28 | #include <mpc83xx.h> | |
29 | #include <asm/processor.h> | |
30 | ||
d87080b7 WD |
31 | DECLARE_GLOBAL_DATA_PTR; |
32 | ||
f046ccd1 EL |
33 | struct irq_action { |
34 | interrupt_handler_t *handler; | |
35 | void *arg; | |
36 | ulong count; | |
37 | }; | |
38 | ||
39 | int interrupt_init_cpu (unsigned *decrementer_count) | |
40 | { | |
6d0f6bcf | 41 | volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR; |
ce574ff5 | 42 | |
6d0f6bcf | 43 | *decrementer_count = (gd->bus_clk / 4) / CONFIG_SYS_HZ; |
ce574ff5 KG |
44 | |
45 | /* Enable e300 time base */ | |
46 | ||
47 | immr->sysconf.spcr |= 0x00400000; | |
48 | ||
f046ccd1 EL |
49 | return 0; |
50 | } | |
51 | ||
52 | ||
53 | /* | |
54 | * Handle external interrupts | |
55 | */ | |
56 | ||
57 | void external_interrupt (struct pt_regs *regs) | |
58 | { | |
59 | } | |
60 | ||
61 | ||
62 | /* | |
63 | * Install and free an interrupt handler. | |
64 | */ | |
65 | ||
66 | void | |
67 | irq_install_handler (int irq, interrupt_handler_t * handler, void *arg) | |
68 | { | |
69 | } | |
70 | ||
71 | ||
72 | void irq_free_handler (int irq) | |
73 | { | |
74 | } | |
75 | ||
76 | ||
77 | void timer_interrupt_cpu (struct pt_regs *regs) | |
78 | { | |
79 | /* nothing to do here */ | |
80 | return; | |
81 | } | |
82 | ||
83 | ||
4431283c | 84 | #if defined(CONFIG_CMD_IRQ) |
f046ccd1 EL |
85 | |
86 | /* ripped this out of ppc4xx/interrupts.c */ | |
87 | ||
88 | /* | |
89 | * irqinfo - print information about PCI devices | |
90 | */ | |
91 | ||
92 | void | |
93 | do_irqinfo(cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) | |
94 | { | |
95 | } | |
96 | ||
4431283c | 97 | #endif |