+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2003
* Texas Instruments <www.ti.com>
*
* (C) Copyright 2004
* Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <efi_loader.h>
#include <asm/proc-armv/ptrace.h>
#include <asm/u-boot-arm.h>
+#include <efi_loader.h>
DECLARE_GLOBAL_DATA_PTR;
-#ifdef CONFIG_USE_IRQ
-int interrupt_init (void)
-{
- unsigned long cpsr;
-
- /*
- * setup up stacks if necessary
- */
- IRQ_STACK_START = gd->irq_sp - 4;
- IRQ_STACK_START_IN = gd->irq_sp + 8;
- FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
-
-
- __asm__ __volatile__("mrs %0, cpsr\n"
- : "=r" (cpsr)
- :
- : "memory");
-
- __asm__ __volatile__("msr cpsr_c, %0\n"
- "mov sp, %1\n"
- :
- : "r" (IRQ_MODE | I_BIT | F_BIT | (cpsr & ~FIQ_MODE)),
- "r" (IRQ_STACK_START)
- : "memory");
-
- __asm__ __volatile__("msr cpsr_c, %0\n"
- "mov sp, %1\n"
- :
- : "r" (FIQ_MODE | I_BIT | F_BIT | (cpsr & ~IRQ_MODE)),
- "r" (FIQ_STACK_START)
- : "memory");
-
- __asm__ __volatile__("msr cpsr_c, %0"
- :
- : "r" (cpsr)
- : "memory");
-
- return arch_interrupt_init();
-}
-
-/* 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
int interrupt_init (void)
{
/*
{
return 0;
}
-#endif
-
void bad_mode (void)
{
reset_cpu (0);
}
+static void show_efi_loaded_images(struct pt_regs *regs)
+{
+ efi_print_image_infos((void *)instruction_pointer(regs));
+}
+
void show_regs (struct pt_regs *regs)
{
- unsigned long flags;
- const char *processor_modes[] = {
+ unsigned long __maybe_unused flags;
+ const char __maybe_unused *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",
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("pc : [<%08lx>] lr : [<%08lx>]\n",
+ instruction_pointer(regs), regs->ARM_lr);
+ if (gd->flags & GD_FLG_RELOC) {
+ printf("reloc pc : [<%08lx>] lr : [<%08lx>]\n",
+ instruction_pointer(regs) - gd->reloc_off,
+ regs->ARM_lr - gd->reloc_off);
+ }
+ printf("sp : %08lx ip : %08lx fp : %08lx\n",
+ 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",
thumb_mode (regs) ? " (T)" : "");
}
+/* fixup PC to point to the instruction leading to the exception */
+static inline void fixup_pc(struct pt_regs *regs, int offset)
+{
+ uint32_t pc = instruction_pointer(regs) + offset;
+ regs->ARM_pc = pc | (regs->ARM_pc & PCMASK);
+}
+
void do_undefined_instruction (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("undefined instruction\n");
+ fixup_pc(pt_regs, -4);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
void do_software_interrupt (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("software interrupt\n");
+ fixup_pc(pt_regs, -4);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
void do_prefetch_abort (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("prefetch abort\n");
+ fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
void do_data_abort (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("data abort\n");
+ fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
void do_not_used (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("not used\n");
+ fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
void do_fiq (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("fast interrupt request\n");
+ fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
-#ifndef CONFIG_USE_IRQ
void do_irq (struct pt_regs *pt_regs)
{
+ efi_restore_gd();
printf ("interrupt request\n");
+ fixup_pc(pt_regs, -8);
show_regs (pt_regs);
+ show_efi_loaded_images(pt_regs);
bad_mode ();
}
-#endif
projects / u-boot / blobdiff