mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-08 03:03:45 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
177 lines
4.1 KiB
C
177 lines
4.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2003
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* Texas Instruments <www.ti.com>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Marius Groeger <mgroeger@sysgo.de>
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*
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* (C) Copyright 2002
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* Sysgo Real-Time Solutions, GmbH <www.elinos.com>
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* Alex Zuepke <azu@sysgo.de>
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*
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* (C) Copyright 2002-2004
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* Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
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*
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* (C) Copyright 2004
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* Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
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*/
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#include <common.h>
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#include <efi_loader.h>
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#include <asm/proc-armv/ptrace.h>
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#include <asm/u-boot-arm.h>
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#include <efi_loader.h>
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DECLARE_GLOBAL_DATA_PTR;
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int interrupt_init (void)
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{
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/*
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* setup up stacks if necessary
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*/
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IRQ_STACK_START_IN = gd->irq_sp + 8;
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return 0;
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}
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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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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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static void show_efi_loaded_images(struct pt_regs *regs)
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{
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efi_print_image_infos((void *)instruction_pointer(regs));
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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 __maybe_unused flags;
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const char __maybe_unused *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", "HYP_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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instruction_pointer(regs), regs->ARM_lr);
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if (gd->flags & GD_FLG_RELOC) {
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printf("reloc pc : [<%08lx>] lr : [<%08lx>]\n",
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instruction_pointer(regs) - gd->reloc_off,
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regs->ARM_lr - gd->reloc_off);
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}
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printf("sp : %08lx ip : %08lx fp : %08lx\n",
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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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/* fixup PC to point to the instruction leading to the exception */
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static inline void fixup_pc(struct pt_regs *regs, int offset)
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{
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uint32_t pc = instruction_pointer(regs) + offset;
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regs->ARM_pc = pc | (regs->ARM_pc & PCMASK);
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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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efi_restore_gd();
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printf ("undefined instruction\n");
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fixup_pc(pt_regs, -4);
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show_regs (pt_regs);
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show_efi_loaded_images(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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efi_restore_gd();
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printf ("software interrupt\n");
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fixup_pc(pt_regs, -4);
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show_regs (pt_regs);
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show_efi_loaded_images(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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efi_restore_gd();
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printf ("prefetch abort\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(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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efi_restore_gd();
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printf ("data abort\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(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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efi_restore_gd();
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printf ("not used\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(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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efi_restore_gd();
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printf ("fast interrupt request\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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void do_irq (struct pt_regs *pt_regs)
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{
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efi_restore_gd();
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printf ("interrupt request\n");
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fixup_pc(pt_regs, -8);
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show_regs (pt_regs);
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show_efi_loaded_images(pt_regs);
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bad_mode ();
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}
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