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