2009-12-28 06:13:51 -05:00
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/*
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* Copyright 2007-2009 Analog Devices Inc.
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* Graff Yang <graf.yang@analog.com>
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*
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* Licensed under the GPL-2 or later.
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*/
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#include <asm/blackfin.h>
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2010-01-28 05:46:55 -05:00
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#include <asm/irq.h>
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2009-12-28 06:13:51 -05:00
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#include <asm/smp.h>
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2010-01-28 05:46:55 -05:00
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2009-12-28 06:13:51 -05:00
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#define SIC_SYSIRQ(irq) (irq - (IRQ_CORETMR + 1))
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int hotplug_coreb;
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void platform_cpu_die(void)
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{
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unsigned long iwr[2] = {0, 0};
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unsigned long bank = SIC_SYSIRQ(IRQ_SUPPLE_0) / 32;
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unsigned long bit = 1 << (SIC_SYSIRQ(IRQ_SUPPLE_0) % 32);
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hotplug_coreb = 1;
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iwr[bank] = bit;
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/* disable core timer */
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bfin_write_TCNTL(0);
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/* clear ipi interrupt IRQ_SUPPLE_0 */
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bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + 1)));
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SSYNC();
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coreb_sleep(iwr[0], iwr[1], 0);
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}
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