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| author | Graf Yang <graf.yang@analog.com> | 2008-11-18 10:48:22 +0100 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-11-18 10:48:22 +0100 |
| commit | 8f65873e47784a390949f0d61e5692dbf2a8253e (patch) | |
| tree | 4d9509bf5e52ebac190d79de04b783829d44f49e /arch/blackfin/kernel/reboot.c | |
| parent | Blackfin arch: SMP supporting patchset: Blackfin CPLB related code (diff) | |
| download | linux-8f65873e47784a390949f0d61e5692dbf2a8253e.tar.xz linux-8f65873e47784a390949f0d61e5692dbf2a8253e.zip | |
Blackfin arch: SMP supporting patchset: Blackfin kernel and memory management code
Blackfin dual core BF561 processor can support SMP like features.
https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like
In this patch, we provide SMP extend to Blackfin kernel and memory management code
Singed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/kernel/reboot.c')
| -rw-r--r-- | arch/blackfin/kernel/reboot.c | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c index ae97ca407b0d..eeee8cb43360 100644 --- a/arch/blackfin/kernel/reboot.c +++ b/arch/blackfin/kernel/reboot.c @@ -21,7 +21,7 @@ * the core reset. */ __attribute__((l1_text)) -static void bfin_reset(void) +static void _bfin_reset(void) { /* Wait for completion of "system" events such as cache line * line fills so that we avoid infinite stalls later on as @@ -66,6 +66,18 @@ static void bfin_reset(void) } } +static void bfin_reset(void) +{ + if (ANOMALY_05000353 || ANOMALY_05000386) + _bfin_reset(); + else + /* the bootrom checks to see how it was reset and will + * automatically perform a software reset for us when + * it starts executing boot + */ + asm("raise 1;"); +} + __attribute__((weak)) void native_machine_restart(char *cmd) { @@ -75,14 +87,10 @@ void machine_restart(char *cmd) { native_machine_restart(cmd); local_irq_disable(); - if (ANOMALY_05000353 || ANOMALY_05000386) - bfin_reset(); + if (smp_processor_id()) + smp_call_function((void *)bfin_reset, 0, 1); else - /* the bootrom checks to see how it was reset and will - * automatically perform a software reset for us when - * it starts executing boot - */ - asm("raise 1;"); + bfin_reset(); } __attribute__((weak)) |