1 /* vi: set ts=8 sw=8 noet: */
4 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
5 * Marius Groeger <mgroeger@sysgo.de>
8 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
9 * Alex Zuepke <azu@sysgo.de>
11 * See file CREDITS for list of people who contributed to this
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License as
16 * published by the Free Software Foundation; either version 2 of
17 * the License, or (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
31 #include <asm/arch/ixp425.h>
33 extern void reset_cpu (ulong addr);
36 /* enable IRQ/FIQ interrupts */
37 void enable_interrupts (void)
39 #error: interrupts not implemented yet
44 * disable IRQ/FIQ interrupts
45 * returns true if interrupts had been enabled before we disabled them
47 int disable_interrupts (void)
49 #error: interrupts not implemented yet
52 void enable_interrupts (void)
56 int disable_interrupts (void)
66 panic ("Resetting CPU ...\n");
70 void show_regs (struct pt_regs *regs)
73 const char *processor_modes[] = {
74 "USER_26", "FIQ_26", "IRQ_26", "SVC_26",
75 "UK4_26", "UK5_26", "UK6_26", "UK7_26",
76 "UK8_26", "UK9_26", "UK10_26", "UK11_26",
77 "UK12_26", "UK13_26", "UK14_26", "UK15_26",
78 "USER_32", "FIQ_32", "IRQ_32", "SVC_32",
79 "UK4_32", "UK5_32", "UK6_32", "ABT_32",
80 "UK8_32", "UK9_32", "UK10_32", "UND_32",
81 "UK12_32", "UK13_32", "UK14_32", "SYS_32"
84 flags = condition_codes (regs);
86 printf ("pc : [<%08lx>] lr : [<%08lx>]\n"
87 "sp : %08lx ip : %08lx fp : %08lx\n",
88 instruction_pointer (regs),
89 regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
90 printf ("r10: %08lx r9 : %08lx r8 : %08lx\n",
91 regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
92 printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n",
93 regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
94 printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n",
95 regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
96 printf ("Flags: %c%c%c%c",
97 flags & CC_N_BIT ? 'N' : 'n',
98 flags & CC_Z_BIT ? 'Z' : 'z',
99 flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v');
100 printf (" IRQs %s FIQs %s Mode %s%s\n",
101 interrupts_enabled (regs) ? "on" : "off",
102 fast_interrupts_enabled (regs) ? "on" : "off",
103 processor_modes[processor_mode (regs)],
104 thumb_mode (regs) ? " (T)" : "");
107 void do_undefined_instruction (struct pt_regs *pt_regs)
109 printf ("undefined instruction\n");
114 void do_software_interrupt (struct pt_regs *pt_regs)
116 printf ("software interrupt\n");
121 void do_prefetch_abort (struct pt_regs *pt_regs)
123 printf ("prefetch abort\n");
128 void do_data_abort (struct pt_regs *pt_regs)
130 printf ("data abort\n");
135 void do_not_used (struct pt_regs *pt_regs)
137 printf ("not used\n");
142 void do_fiq (struct pt_regs *pt_regs)
144 printf ("fast interrupt request\n");
149 void do_irq (struct pt_regs *pt_regs)
151 printf ("interrupt request\n");
157 int interrupt_init (void)
159 /* nothing happens here - we don't setup any IRQs */