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https://github.com/AsahiLinux/u-boot
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35 lines
583 B
C
35 lines
583 B
C
/*
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* Copyright (C) 2006 Atmel Corporation
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <asm/sysreg.h>
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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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void enable_interrupts(void)
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{
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asm volatile("csrf %0" : : "n"(SYSREG_GM_OFFSET));
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}
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int disable_interrupts(void)
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{
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unsigned long sr;
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sr = sysreg_read(SR);
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asm volatile("ssrf %0" : : "n"(SYSREG_GM_OFFSET));
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#ifdef CONFIG_AT32UC3A0xxx
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/* Two NOPs are required after masking interrupts on the
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* AT32UC3A0512ES. See errata 41.4.5.5. */
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asm("nop");
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asm("nop");
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#endif
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return !SYSREG_BFEXT(GM, sr);
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}
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