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Diffstat (limited to 'arch/arm/mach-shmobile/timer.c')
-rw-r--r--arch/arm/mach-shmobile/timer.c30
1 files changed, 7 insertions, 23 deletions
diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c
index 942efdc82a62..87c6be1e79bd 100644
--- a/arch/arm/mach-shmobile/timer.c
+++ b/arch/arm/mach-shmobile/timer.c
@@ -23,8 +23,8 @@
#include <linux/delay.h>
#include <linux/of_address.h>
-void __init shmobile_setup_delay_hz(unsigned int max_cpu_core_hz,
- unsigned int mult, unsigned int div)
+static void __init shmobile_setup_delay_hz(unsigned int max_cpu_core_hz,
+ unsigned int mult, unsigned int div)
{
/* calculate a worst-case loops-per-jiffy value
* based on maximum cpu core hz setting and the
@@ -40,27 +40,10 @@ void __init shmobile_setup_delay_hz(unsigned int max_cpu_core_hz,
preset_lpj = max_cpu_core_hz / value;
}
-void __init shmobile_setup_delay(unsigned int max_cpu_core_mhz,
- unsigned int mult, unsigned int div)
-{
- /* calculate a worst-case loops-per-jiffy value
- * based on maximum cpu core mhz setting and the
- * __delay() implementation in arch/arm/lib/delay.S
- *
- * this will result in a longer delay than expected
- * when the cpu core runs on lower frequencies.
- */
-
- unsigned int value = (1000000 * mult) / (HZ * div);
-
- if (!preset_lpj)
- preset_lpj = max_cpu_core_mhz * value;
-}
-
void __init shmobile_init_delay(void)
{
struct device_node *np, *cpus;
- bool is_a8_a9 = false;
+ bool is_a7_a8_a9 = false;
bool is_a15 = false;
u32 max_freq = 0;
@@ -74,9 +57,10 @@ void __init shmobile_init_delay(void)
if (!of_property_read_u32(np, "clock-frequency", &freq))
max_freq = max(max_freq, freq);
- if (of_device_is_compatible(np, "arm,cortex-a8") ||
+ if (of_device_is_compatible(np, "arm,cortex-a7") ||
+ of_device_is_compatible(np, "arm,cortex-a8") ||
of_device_is_compatible(np, "arm,cortex-a9"))
- is_a8_a9 = true;
+ is_a7_a8_a9 = true;
else if (of_device_is_compatible(np, "arm,cortex-a15"))
is_a15 = true;
}
@@ -86,7 +70,7 @@ void __init shmobile_init_delay(void)
if (!max_freq)
return;
- if (is_a8_a9)
+ if (is_a7_a8_a9)
shmobile_setup_delay_hz(max_freq, 1, 3);
else if (is_a15 && !IS_ENABLED(CONFIG_ARM_ARCH_TIMER))
shmobile_setup_delay_hz(max_freq, 2, 4);