mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +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>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (c) 2016-17 Microsemi Corporation.
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* Padmarao Begari, Microsemi Corporation <padmarao.begari@microsemi.com>
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*
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* Copyright (C) 2017 Andes Technology Corporation
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* Rick Chen, Andes Technology Corporation <rick@andestech.com>
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*/
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#include <common.h>
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#include <asm/ptrace.h>
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#include <asm/system.h>
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#include <asm/encoding.h>
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static void _exit_trap(int code, uint epc, struct pt_regs *regs);
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int interrupt_init(void)
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{
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return 0;
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}
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/*
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* enable interrupts
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*/
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void enable_interrupts(void)
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{
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}
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/*
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* disable interrupts
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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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uint handle_trap(uint mcause, uint epc, struct pt_regs *regs)
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{
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uint is_int;
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is_int = (mcause & MCAUSE_INT);
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if ((is_int) && ((mcause & MCAUSE_CAUSE) == IRQ_M_EXT))
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external_interrupt(0); /* handle_m_ext_interrupt */
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else if ((is_int) && ((mcause & MCAUSE_CAUSE) == IRQ_M_TIMER))
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timer_interrupt(0); /* handle_m_timer_interrupt */
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else
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_exit_trap(mcause, epc, regs);
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return epc;
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}
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/*
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*Entry Point for PLIC Interrupt Handler
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*/
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__attribute__((weak)) void external_interrupt(struct pt_regs *regs)
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{
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}
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__attribute__((weak)) void timer_interrupt(struct pt_regs *regs)
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{
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}
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static void _exit_trap(int code, uint epc, struct pt_regs *regs)
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{
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static const char * const exception_code[] = {
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"Instruction address misaligned",
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"Instruction access fault",
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"Illegal instruction",
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"Breakpoint",
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"Load address misaligned"
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};
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printf("exception code: %d , %s , epc %08x , ra %08lx\n",
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code, exception_code[code], epc, regs->ra);
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}
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