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Subject[PATCH 08/32] Blackfin arch: Move write to VR_CTL closer to IDLE
Date
From: Michael Hennerich <michael.hennerich@analog.com>

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
---
include/asm-blackfin/mach-bf533/cdefBF532.h | 6 ++++--
include/asm-blackfin/mach-bf537/cdefBF534.h | 6 ++++--
include/asm-blackfin/mach-bf561/cdefBF561.h | 6 ++++--
3 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/include/asm-blackfin/mach-bf533/cdefBF532.h b/include/asm-blackfin/mach-bf533/cdefBF532.h
index 1d7c494..521bdb4 100644
--- a/include/asm-blackfin/mach-bf533/cdefBF532.h
+++ b/include/asm-blackfin/mach-bf533/cdefBF532.h
@@ -63,12 +63,14 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
{
unsigned long flags, iwr;

- bfin_write16(VR_CTL, val);
- __builtin_bfin_ssync();
/* Enable the PLL Wakeup bit in SIC IWR */
iwr = bfin_read32(SIC_IWR);
/* Only allow PPL Wakeup) */
bfin_write32(SIC_IWR, IWR_ENABLE(0));
+
+ bfin_write16(VR_CTL, val);
+ __builtin_bfin_ssync();
+
local_irq_save(flags);
asm("IDLE;");
local_irq_restore(flags);
diff --git a/include/asm-blackfin/mach-bf537/cdefBF534.h b/include/asm-blackfin/mach-bf537/cdefBF534.h
index 7b658c1..9a167f3 100644
--- a/include/asm-blackfin/mach-bf537/cdefBF534.h
+++ b/include/asm-blackfin/mach-bf537/cdefBF534.h
@@ -51,12 +51,14 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
{
unsigned long flags, iwr;

- bfin_write16(VR_CTL, val);
- __builtin_bfin_ssync();
/* Enable the PLL Wakeup bit in SIC IWR */
iwr = bfin_read32(SIC_IWR);
/* Only allow PPL Wakeup) */
bfin_write32(SIC_IWR, IWR_ENABLE(0));
+
+ bfin_write16(VR_CTL, val);
+ __builtin_bfin_ssync();
+
local_irq_save(flags);
asm("IDLE;");
local_irq_restore(flags);
diff --git a/include/asm-blackfin/mach-bf561/cdefBF561.h b/include/asm-blackfin/mach-bf561/cdefBF561.h
index 5dc0ed8..b14f872 100644
--- a/include/asm-blackfin/mach-bf561/cdefBF561.h
+++ b/include/asm-blackfin/mach-bf561/cdefBF561.h
@@ -59,12 +59,14 @@ static __inline__ void bfin_write_VR_CTL(unsigned int val)
{
unsigned long flags, iwr;

- bfin_write16(VR_CTL, val);
- __builtin_bfin_ssync();
/* Enable the PLL Wakeup bit in SIC IWR */
iwr = bfin_read32(SICA_IWR0);
/* Only allow PPL Wakeup) */
bfin_write32(SICA_IWR0, IWR_ENABLE(0));
+
+ bfin_write16(VR_CTL, val);
+ __builtin_bfin_ssync();
+
local_irq_save(flags);
asm("IDLE;");
local_irq_restore(flags);
--
1.5.1.2
-
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