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https://github.com/AsahiLinux/u-boot
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03642aeee0
Need to reload the loop counters to keep from corrupting hardware loops. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
47 lines
887 B
ArmAsm
47 lines
887 B
ArmAsm
/*
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* interrupt.S - trampoline default exceptions/interrupts to C handlers
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*
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* Copyright (c) 2005-2009 Analog Devices Inc.
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* Licensed under the GPL-2 or later.
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*/
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#include <config.h>
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#include <asm/blackfin.h>
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#include <asm/entry.h>
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.text
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/* default entry point for exceptions */
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ENTRY(_trap)
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CONFIG_BFIN_SCRATCH_REG = sp;
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sp.l = LO(L1_SRAM_SCRATCH_END - 20);
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sp.h = HI(L1_SRAM_SCRATCH_END - 20);
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SAVE_ALL_SYS
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r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
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sp += -12;
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call _trap_c;
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sp += 12;
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#if ANOMALY_05000257
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R7 = LC0;
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LC0 = R7;
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R7 = LC1;
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LC1 = R7;
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#endif
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RESTORE_ALL_SYS
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sp = CONFIG_BFIN_SCRATCH_REG;
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rtx;
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ENDPROC(_trap)
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/* default entry point for interrupts */
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ENTRY(_evt_default)
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SAVE_ALL_SYS
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r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */
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sp += -12;
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call _bfin_panic;
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sp += 12;
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RESTORE_ALL_SYS
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rti;
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ENDPROC(_evt_default)
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