diff options
Diffstat (limited to 'arch/blackfin/mach-bf561/hotplug.c')
-rw-r--r-- | arch/blackfin/mach-bf561/hotplug.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/arch/blackfin/mach-bf561/hotplug.c b/arch/blackfin/mach-bf561/hotplug.c deleted file mode 100644 index 0123117b8ff2..000000000000 --- a/arch/blackfin/mach-bf561/hotplug.c +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Copyright 2007-2009 Analog Devices Inc. - * Graff Yang <graf.yang@analog.com> - * - * Licensed under the GPL-2 or later. - */ - -#include <linux/smp.h> -#include <asm/blackfin.h> -#include <asm/cacheflush.h> -#include <mach/pll.h> - -int hotplug_coreb; - -void platform_cpu_die(void) -{ - unsigned long iwr; - - hotplug_coreb = 1; - - /* - * When CoreB wakes up, the code in _coreb_trampoline_start cannot - * turn off the data cache. This causes the CoreB failed to boot. - * As a workaround, we invalidate all the data cache before sleep. - */ - blackfin_invalidate_entire_dcache(); - - /* disable core timer */ - bfin_write_TCNTL(0); - - /* clear ipi interrupt IRQ_SUPPLE_0 of CoreB */ - bfin_write_SICB_SYSCR(bfin_read_SICB_SYSCR() | (1 << (10 + 1))); - SSYNC(); - - /* set CoreB wakeup by ipi0, iwr will be discarded */ - bfin_iwr_set_sup0(&iwr, &iwr, &iwr); - SSYNC(); - - coreb_die(); -} |