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authorGraf Yang <graf.yang@analog.com>2008-11-18 17:48:22 +0800
committerBryan Wu <cooloney@kernel.org>2008-11-18 17:48:22 +0800
commit8f65873e47784a390949f0d61e5692dbf2a8253e (patch)
tree4d9509bf5e52ebac190d79de04b783829d44f49e /arch/blackfin/kernel/reboot.c
parentb8a989893cbdeb6c97a7b5af5f38fb0e480235f9 (diff)
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.c24
1 files changed, 16 insertions, 8 deletions
diff --git a/arch/blackfin/kernel/reboot.c b/arch/blackfin/kernel/reboot.c
index ae97ca407b0..eeee8cb4336 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))