linux-kernel - [PATCH 08/32] Blackfin arch: Move write to VR

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Date:	Mon, 21 May 2007 18:09:16 +0800
From:	Bryan Wu <bryan.wu@...log.com>
To:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Cc:	Michael Hennerich <michael.hennerich@...log.com>,
	Bryan Wu <bryan.wu@...log.com>
Subject: [PATCH 08/32] Blackfin arch: Move write to VR_CTL closer to IDLE

From: Michael Hennerich <michael.hennerich@...log.com>

Signed-off-by: Michael Hennerich <michael.hennerich@...log.com>
Signed-off-by: Bryan Wu <bryan.wu@...log.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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