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authorGraf Yang <graf.yang@analog.com>2009-05-15 07:01:59 -0400
committerMike Frysinger <vapier@gentoo.org>2009-06-12 06:11:37 -0400
commit1fa9be72b558c39459f98835eb86dbb4ef4da30b (patch)
treef0b71c7b7a3639285c64e3f3cbc449c3ff9eee3b /arch/blackfin/mach-common/smp.c
parent555487bbb63f527e63fecbff48c86e2c07ce5024 (diff)
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>
Diffstat (limited to 'arch/blackfin/mach-common/smp.c')
-rw-r--r--arch/blackfin/mach-common/smp.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 187c79e585a1..b6695957b065 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -43,6 +43,7 @@
43#include <asm/processor.h> 43#include <asm/processor.h>
44#include <asm/ptrace.h> 44#include <asm/ptrace.h>
45#include <asm/cpu.h> 45#include <asm/cpu.h>
46#include <asm/time.h>
46#include <linux/err.h> 47#include <linux/err.h>
47 48
48/* 49/*
@@ -356,7 +357,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
356 357
357static void __cpuinit setup_secondary(unsigned int cpu) 358static void __cpuinit setup_secondary(unsigned int cpu)
358{ 359{
359#if !(defined(CONFIG_TICK_SOURCE_SYSTMR0) || defined(CONFIG_IPIPE)) 360#if !defined(CONFIG_TICKSOURCE_GPTMR0)
360 struct irq_desc *timer_desc; 361 struct irq_desc *timer_desc;
361#endif 362#endif
362 unsigned long ilat; 363 unsigned long ilat;
@@ -377,7 +378,7 @@ static void __cpuinit setup_secondary(unsigned int cpu)
377 IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 | 378 IMASK_IVG14 | IMASK_IVG13 | IMASK_IVG12 | IMASK_IVG11 |
378 IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW; 379 IMASK_IVG10 | IMASK_IVG9 | IMASK_IVG8 | IMASK_IVG7 | IMASK_IVGHW;
379 380
380#if defined(CONFIG_TICK_SOURCE_SYSTMR0) || defined(CONFIG_IPIPE) 381#if defined(CONFIG_TICKSOURCE_GPTMR0)
381 /* Power down the core timer, just to play safe. */ 382 /* Power down the core timer, just to play safe. */
382 bfin_write_TCNTL(0); 383 bfin_write_TCNTL(0);
383 384