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@ -33,6 +33,8 @@ |
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#include <asm/arch/ixp425.h> |
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#ifdef CONFIG_USE_IRQ |
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#include <asm/proc-armv/ptrace.h> |
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/*
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* When interrupts are enabled, use timer 2 for time/delay generation... |
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*/ |
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@ -50,34 +52,6 @@ static struct _irq_handler IRQ_HANDLER[N_IRQS]; |
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static volatile ulong timestamp; |
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/* enable IRQ/FIQ interrupts */ |
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void enable_interrupts(void) |
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{ |
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unsigned long temp; |
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__asm__ __volatile__("mrs %0, cpsr\n" |
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"bic %0, %0, #0x80\n" |
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"msr cpsr_c, %0" |
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: "=r" (temp) |
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: |
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: "memory"); |
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} |
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/*
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* disable IRQ/FIQ interrupts |
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* returns true if interrupts had been enabled before we disabled them |
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*/ |
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int disable_interrupts(void) |
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{ |
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unsigned long old,temp; |
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__asm__ __volatile__("mrs %0, cpsr\n" |
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"orr %1, %0, #0x80\n" |
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"msr cpsr_c, %1" |
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: "=r" (old), "=r" (temp) |
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: |
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: "memory"); |
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return (old & 0x80) == 0; |
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} |
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static void default_isr(void *data) |
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{ |
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printf("default_isr(): called for IRQ %d, Interrupt Status=%x PR=%x\n", |
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@ -111,114 +85,16 @@ void reset_timer (void) |
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timestamp = 0; |
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} |
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#else /* #ifdef CONFIG_USE_IRQ */ |
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void enable_interrupts (void) |
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{ |
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return; |
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} |
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int disable_interrupts (void) |
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{ |
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return 0; |
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} |
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#endif /* #ifdef CONFIG_USE_IRQ */ |
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void bad_mode (void) |
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{ |
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panic ("Resetting CPU ...\n"); |
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reset_cpu (0); |
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} |
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void show_regs (struct pt_regs *regs) |
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{ |
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unsigned long flags; |
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const char *processor_modes[] = { |
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"USER_26", "FIQ_26", "IRQ_26", "SVC_26", |
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"UK4_26", "UK5_26", "UK6_26", "UK7_26", |
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"UK8_26", "UK9_26", "UK10_26", "UK11_26", |
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"UK12_26", "UK13_26", "UK14_26", "UK15_26", |
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"USER_32", "FIQ_32", "IRQ_32", "SVC_32", |
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"UK4_32", "UK5_32", "UK6_32", "ABT_32", |
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"UK8_32", "UK9_32", "UK10_32", "UND_32", |
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"UK12_32", "UK13_32", "UK14_32", "SYS_32" |
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}; |
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flags = condition_codes (regs); |
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printf ("pc : [<%08lx>] lr : [<%08lx>]\n" |
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"sp : %08lx ip : %08lx fp : %08lx\n", |
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instruction_pointer (regs), |
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regs->ARM_lr, regs->ARM_sp, regs->ARM_ip, regs->ARM_fp); |
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printf ("r10: %08lx r9 : %08lx r8 : %08lx\n", |
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regs->ARM_r10, regs->ARM_r9, regs->ARM_r8); |
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printf ("r7 : %08lx r6 : %08lx r5 : %08lx r4 : %08lx\n", |
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regs->ARM_r7, regs->ARM_r6, regs->ARM_r5, regs->ARM_r4); |
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printf ("r3 : %08lx r2 : %08lx r1 : %08lx r0 : %08lx\n", |
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regs->ARM_r3, regs->ARM_r2, regs->ARM_r1, regs->ARM_r0); |
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printf ("Flags: %c%c%c%c", |
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flags & CC_N_BIT ? 'N' : 'n', |
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flags & CC_Z_BIT ? 'Z' : 'z', |
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flags & CC_C_BIT ? 'C' : 'c', flags & CC_V_BIT ? 'V' : 'v'); |
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printf (" IRQs %s FIQs %s Mode %s%s\n", |
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interrupts_enabled (regs) ? "on" : "off", |
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fast_interrupts_enabled (regs) ? "on" : "off", |
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processor_modes[processor_mode (regs)], |
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thumb_mode (regs) ? " (T)" : ""); |
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} |
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void do_undefined_instruction (struct pt_regs *pt_regs) |
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{ |
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printf ("undefined instruction\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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} |
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void do_software_interrupt (struct pt_regs *pt_regs) |
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{ |
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printf ("software interrupt\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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} |
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void do_prefetch_abort (struct pt_regs *pt_regs) |
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{ |
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printf ("prefetch abort\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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} |
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void do_data_abort (struct pt_regs *pt_regs) |
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{ |
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printf ("data abort\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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} |
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void do_not_used (struct pt_regs *pt_regs) |
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{ |
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printf ("not used\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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} |
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void do_fiq (struct pt_regs *pt_regs) |
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{ |
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printf ("fast interrupt request\n"); |
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show_regs (pt_regs); |
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printf("IRQ=%08lx FIQ=%08lx\n", *IXP425_ICIH, *IXP425_ICFH); |
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} |
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#ifdef CONFIG_USE_IRQ |
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void do_irq (struct pt_regs *pt_regs) |
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{ |
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#ifdef CONFIG_USE_IRQ |
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int irq = next_irq(); |
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IRQ_HANDLER[irq].m_func(IRQ_HANDLER[irq].m_data); |
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#else |
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printf ("interrupt request\n"); |
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show_regs (pt_regs); |
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bad_mode (); |
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#endif |
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} |
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#endif |
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int interrupt_init (void) |
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{ |
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