Blackfin: add support for gptimer0 as a tick source

For systems where the core cycles are not a usable tick source (like SMP
or cycles gets updated), enable gptimer0 as an alternative.

Signed-off-by: Graf Yang <graf.yang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

2 files changed, 2 insertions, 1 deletions

diff --git a/arch/blackfin/mach-bf561/Kconfig b/arch/blackfin/mach-bf561/Kconfig
index 6965dd59af4c..cb9743641511 100644
--- a/arch/blackfin/mach-bf561/Kconfig
+++ b/arch/blackfin/mach-bf561/Kconfig
@@ -125,6 +125,7 @@ config IRQ_DMA2_11
         default 9
 config IRQ_TIMER0
         int "TIMER 0  Interrupt"
+        default 7 if TICKSOURCE_GPTMR0
         default 8
 config IRQ_TIMER1
         int "TIMER 1  Interrupt"
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index 4ea13d2eb872..8c10701c251f 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -133,7 +133,7 @@ void __init platform_request_ipi(irq_handler_t handler)
         int ret;
 
         ret = request_irq(IRQ_SUPPLE_0, handler, IRQF_DISABLED,
-                          "SMP interrupt", handler);
+                          "Supplemental Interrupt0", handler);
         if (ret)
                 panic("Cannot request supplemental interrupt 0 for IPI service");
 }