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authorShawn Guo <shawn.guo@freescale.com>2014-09-01 08:57:20 +0800
committerShawn Guo <shawn.guo@freescale.com>2014-09-01 22:00:02 +0800
commitee295d7ff442699bb7982f2283f71eabcc16f367 (patch)
tree9f30fbee15ce9f1538e69939cfdebdb6390be896
parent1ca7070d1d08e71692295ed06c6cb6331ecac3c8 (diff)
ARM: imx: remove imx_scu_standby_enable()
With commit c716483c3db1 ("ARM: 8122/1: smp_scu: enable SCU standby support"), the STANDBY bit of SCU is handled by core function scu_enable(). So imx_scu_standby_enable() can be removed now. Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
-rw-r--r--arch/arm/mach-imx/common.h2
-rw-r--r--arch/arm/mach-imx/cpuidle-imx6q.c4
-rw-r--r--arch/arm/mach-imx/platsmp.c10
3 files changed, 0 insertions, 16 deletions
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 22ba8973bcb9..1dabf435c592 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -98,11 +98,9 @@ void imx_set_cpu_arg(int cpu, u32 arg);
void v7_secondary_startup(void);
void imx_scu_map_io(void);
void imx_smp_prepare(void);
-void imx_scu_standby_enable(void);
#else
static inline void imx_scu_map_io(void) {}
static inline void imx_smp_prepare(void) {}
-static inline void imx_scu_standby_enable(void) {}
#endif
void imx_src_init(void);
void imx_gpc_init(void);
diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
index 10844d3bb926..aa935787b743 100644
--- a/arch/arm/mach-imx/cpuidle-imx6q.c
+++ b/arch/arm/mach-imx/cpuidle-imx6q.c
@@ -66,10 +66,6 @@ static struct cpuidle_driver imx6q_cpuidle_driver = {
int __init imx6q_cpuidle_init(void)
{
- /* Need to enable SCU standby for entering WAIT modes */
- if (!cpu_is_imx6sx())
- imx_scu_standby_enable();
-
/* Set INT_MEM_CLK_LPM bit to get a reliable WAIT mode support */
imx6q_set_int_mem_clk_lpm(true);
diff --git a/arch/arm/mach-imx/platsmp.c b/arch/arm/mach-imx/platsmp.c
index 5b57c17c06bd..771bd25c1025 100644
--- a/arch/arm/mach-imx/platsmp.c
+++ b/arch/arm/mach-imx/platsmp.c
@@ -20,8 +20,6 @@
#include "common.h"
#include "hardware.h"
-#define SCU_STANDBY_ENABLE (1 << 5)
-
u32 g_diag_reg;
static void __iomem *scu_base;
@@ -45,14 +43,6 @@ void __init imx_scu_map_io(void)
scu_base = IMX_IO_ADDRESS(base);
}
-void imx_scu_standby_enable(void)
-{
- u32 val = readl_relaxed(scu_base);
-
- val |= SCU_STANDBY_ENABLE;
- writel_relaxed(val, scu_base);
-}
-
static int imx_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
imx_set_cpu_jump(cpu, v7_secondary_startup);