imported Freescale specific U-Boot additions for i.MX28,... release L2.6.31_10.08.01

[karo-tx-uboot.git] / cpu / arm920t / interrupts.c

diff --git a/cpu/arm920t/interrupts.c b/cpu/arm920t/interrupts.c
index a43a3ed4fe91d0932b60b944eb492f7d5a648de0..561083ec73e3d04303fcf8a6b844e648f6160dd9 100755 (executable)
--- a/cpu/arm920t/interrupts.c
+++ b/cpu/arm920t/interrupts.c
@@ -8,7 +8,7 @@
  * Alex Zuepke <azu@sysgo.de>
  *
  * (C) Copyright 2002
- * Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
+ * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -30,145 +30,14 @@
  */
 
 #include <common.h>
-#include <arm920t.h>
 #include <asm/proc-armv/ptrace.h>
 
-#ifdef CONFIG_USE_IRQ
-/* enable IRQ interrupts */
-void enable_interrupts (void)
-{
-       unsigned long temp;
-       __asm__ __volatile__("mrs %0, cpsr\n"
-                            "bic %0, %0, #0x80\n"
-                            "msr cpsr_c, %0"
-                            : "=r" (temp)
-                            :
-                            : "memory");
-}
-
-
-/*
- * disable IRQ/FIQ interrupts
- * returns true if interrupts had been enabled before we disabled them
- */
-int disable_interrupts (void)
-{
-       unsigned long old,temp;
-       __asm__ __volatile__("mrs %0, cpsr\n"
-                            "orr %1, %0, #0xc0\n"
-                            "msr cpsr_c, %1"
-                            : "=r" (old), "=r" (temp)
-                            :
-                            : "memory");
-       return (old & 0x80) == 0;
-}
-#else
-void enable_interrupts (void)
-{
-       return;
-}
-int disable_interrupts (void)
-{
-       return 0;
-}
-#endif
-
-
-void bad_mode (void)
-{
-       panic ("Resetting CPU ...\n");
-       reset_cpu (0);
-}
-
-void show_regs (struct pt_regs *regs)
-{
-       unsigned long flags;
-       const char *processor_modes[] = {
-       "USER_26",      "FIQ_26",       "IRQ_26",       "SVC_26",
-       "UK4_26",       "UK5_26",       "UK6_26",       "UK7_26",
-       "UK8_26",       "UK9_26",       "UK10_26",      "UK11_26",
-       "UK12_26",      "UK13_26",      "UK14_26",      "UK15_26",
-       "USER_32",      "FIQ_32",       "IRQ_32",       "SVC_32",
-       "UK4_32",       "UK5_32",       "UK6_32",       "ABT_32",
-       "UK8_32",       "UK9_32",       "UK10_32",      "UND_32",
-       "UK12_32",      "UK13_32",      "UK14_32",      "SYS_32",
-       };
-
-       flags = condition_codes (regs);
-
-       printf ("pc : [<%08lx>]    lr : [<%08lx>]\n"
-               "sp : %08lx  ip : %08lx  fp : %08lx\n",
-               instruction_pointer (regs),
-               regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp);
-       printf ("r10: %08lx  r9 : %08lx  r8 : %08lx\n",
-               regs->ARM_r10, regs->ARM_r9, regs->ARM_r8);
-       printf ("r7 : %08lx  r6 : %08lx  r5 : %08lx  r4 : %08lx\n",
-               regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4);
-       printf ("r3 : %08lx  r2 : %08lx  r1 : %08lx  r0 : %08lx\n",
-               regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0);
-       printf ("Flags: %c%c%c%c",
-               flags & CC_N_BIT ? 'N' : 'n',
-               flags & CC_Z_BIT ? 'Z' : 'z',
-               flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v');
-       printf ("  IRQs %s  FIQs %s  Mode %s%s\n",
-               interrupts_enabled (regs) ? "on" : "off",
-               fast_interrupts_enabled (regs) ? "on" : "off",
-               processor_modes[processor_mode (regs)],
-               thumb_mode (regs) ? " (T)" : "");
-}
-
-void do_undefined_instruction (struct pt_regs *pt_regs)
-{
-       printf ("undefined instruction\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
-void do_software_interrupt (struct pt_regs *pt_regs)
-{
-       printf ("software interrupt\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
-void do_prefetch_abort (struct pt_regs *pt_regs)
-{
-       printf ("prefetch abort\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
-void do_data_abort (struct pt_regs *pt_regs)
-{
-       printf ("data abort\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
-void do_not_used (struct pt_regs *pt_regs)
-{
-       printf ("not used\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
-void do_fiq (struct pt_regs *pt_regs)
-{
-       printf ("fast interrupt request\n");
-       show_regs (pt_regs);
-       bad_mode ();
-}
-
+#if defined (CONFIG_ARCH_INTEGRATOR)
 void do_irq (struct pt_regs *pt_regs)
 {
-#if defined (CONFIG_USE_IRQ) && defined (CONFIG_ARCH_INTEGRATOR)
        /* ASSUMED to be a timer interrupt  */
        /* Just clear it - count handled in */
        /* integratorap.c                   */
-       *(volatile ulong *)(CFG_TIMERBASE + 0x0C) = 0;
-#else
-       printf ("interrupt request\n");
-       show_regs (pt_regs);
-       bad_mode ();
-#endif
+       *(volatile ulong *)(CONFIG_SYS_TIMERBASE + 0x0C) = 0;
 }
+#endif