mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-12 22:26:16 +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>
106 lines
2.6 KiB
C
106 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 1994 - 1999, 2000, 01, 06 Ralf Baechle
|
|
* Copyright (C) 1995, 1996 Paul M. Antoine
|
|
* Copyright (C) 1998 Ulf Carlsson
|
|
* Copyright (C) 1999 Silicon Graphics, Inc.
|
|
* Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
|
|
* Copyright (C) 2002, 2003, 2004, 2005, 2007 Maciej W. Rozycki
|
|
* Copyright (C) 2000, 2001, 2012 MIPS Technologies, Inc. All rights reserved.
|
|
* Copyright (C) 2014, Imagination Technologies Ltd.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/mipsregs.h>
|
|
#include <asm/addrspace.h>
|
|
#include <asm/system.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static void show_regs(const struct pt_regs *regs)
|
|
{
|
|
const int field = 2 * sizeof(unsigned long);
|
|
unsigned int cause = regs->cp0_cause;
|
|
unsigned int exccode;
|
|
int i;
|
|
|
|
/*
|
|
* Saved main processor registers
|
|
*/
|
|
for (i = 0; i < 32; ) {
|
|
if ((i % 4) == 0)
|
|
printf("$%2d :", i);
|
|
if (i == 0)
|
|
printf(" %0*lx", field, 0UL);
|
|
else if (i == 26 || i == 27)
|
|
printf(" %*s", field, "");
|
|
else
|
|
printf(" %0*lx", field, regs->regs[i]);
|
|
|
|
i++;
|
|
if ((i % 4) == 0)
|
|
puts("\n");
|
|
}
|
|
|
|
printf("Hi : %0*lx\n", field, regs->hi);
|
|
printf("Lo : %0*lx\n", field, regs->lo);
|
|
|
|
/*
|
|
* Saved cp0 registers
|
|
*/
|
|
printf("epc : %0*lx (text %0*lx)\n", field, regs->cp0_epc,
|
|
field, regs->cp0_epc - gd->reloc_off);
|
|
printf("ra : %0*lx (text %0*lx)\n", field, regs->regs[31],
|
|
field, regs->regs[31] - gd->reloc_off);
|
|
|
|
printf("Status: %08x\n", (uint32_t) regs->cp0_status);
|
|
|
|
exccode = (cause & CAUSEF_EXCCODE) >> CAUSEB_EXCCODE;
|
|
printf("Cause : %08x (ExcCode %02x)\n", cause, exccode);
|
|
|
|
if (1 <= exccode && exccode <= 5)
|
|
printf("BadVA : %0*lx\n", field, regs->cp0_badvaddr);
|
|
|
|
printf("PrId : %08x\n", read_c0_prid());
|
|
}
|
|
|
|
void do_reserved(const struct pt_regs *regs)
|
|
{
|
|
puts("\nOoops:\n");
|
|
show_regs(regs);
|
|
hang();
|
|
}
|
|
|
|
void do_ejtag_debug(const struct pt_regs *regs)
|
|
{
|
|
const int field = 2 * sizeof(unsigned long);
|
|
unsigned long depc;
|
|
unsigned int debug;
|
|
|
|
depc = read_c0_depc();
|
|
debug = read_c0_debug();
|
|
|
|
printf("SDBBP EJTAG debug exception: c0_depc = %0*lx, DEBUG = %08x\n",
|
|
field, depc, debug);
|
|
}
|
|
|
|
static void set_handler(unsigned long offset, void *addr, unsigned long size)
|
|
{
|
|
unsigned long ebase = gd->irq_sp;
|
|
|
|
memcpy((void *)(ebase + offset), addr, size);
|
|
flush_cache(ebase + offset, size);
|
|
}
|
|
|
|
void trap_init(ulong reloc_addr)
|
|
{
|
|
unsigned long ebase = gd->irq_sp;
|
|
|
|
set_handler(0x180, &except_vec3_generic, 0x80);
|
|
set_handler(0x280, &except_vec_ejtag_debug, 0x80);
|
|
|
|
write_c0_ebase(ebase);
|
|
clear_c0_status(ST0_BEV);
|
|
execution_hazard_barrier();
|
|
}
|