[PATCH] ARC: Don't check presense of Timer1 in SMP builds

2018-02-13 Thread Alexey Brodkin 
In case of SMP we use GFRC from ARconnect and Timer1 is left
untouched. Still with that check in place we're panicing if Timer1
is missing in current hardware which is quite unexpected.

Signed-off-by: Alexey Brodkin 
---
 arch/arc/kernel/setup.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index cf97f7d88934..1142d76a7e8f 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -391,8 +391,10 @@ static void arc_chk_core_config(void)
if (!cpu->extn.timer0)
panic("Timer0 is not present!\n");
 
+#ifndef CONFIG_SMP
if (!cpu->extn.timer1)
panic("Timer1 is not present!\n");
+#endif
 
 #ifdef CONFIG_ARC_HAS_DCCM
/*
-- 
2.11.0


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Re: [PATCH] ARC: Don't check presense of Timer1 in SMP builds

2018-02-13 Thread Vineet Gupta 

On 02/13/2018 11:35 AM, Alexey Brodkin wrote:

In case of SMP we use GFRC from ARconnect and Timer1 is left
untouched. Still with that check in place we're panicing if Timer1
is missing in current hardware which is quite unexpected.

Signed-off-by: Alexey Brodkin 
---
  arch/arc/kernel/setup.c | 2 ++
  1 file changed, 2 insertions(+)

diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index cf97f7d88934..1142d76a7e8f 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -391,8 +391,10 @@ static void arc_chk_core_config(void)
if (!cpu->extn.timer0)
panic("Timer0 is not present!\n");
  
+#ifndef CONFIG_SMP

if (!cpu->extn.timer1)
panic("Timer1 is not present!\n");
+#endif


Curious, you have a config w/o TIMER1, so is this a fallout of recent 
discussions !

-Vineet

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