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mach-u300: fix compilaton warning in IO accessors

Message ID 1307435830-31413-1-git-send-email-linus.walleij@stericsson.com
State Accepted
Commit 6075e9df471e35f2ebf4c73c95c304d0473bd4b2
Headers show

Commit Message

Linus Walleij June 7, 2011, 8:37 a.m. UTC 
From: Linus Walleij <linus.walleij@linaro.org>

The IO accessors for U300 were using u32 rather than the nominal
void __iomem * type, rectify this by properly defining the
virtual base for statically mapped peripherals to be
void __iomem *. Requires fixing a field in struct clk as well.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
This is the second version, will be put into the patch tracker
as 6949/2.
---
 arch/arm/mach-u300/clock.h                  |    2 +-
 arch/arm/mach-u300/include/mach/u300-regs.h |   22 ++++++++++------------
 2 files changed, 11 insertions(+), 13 deletions(-)
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Patch

diff --git a/arch/arm/mach-u300/clock.h b/arch/arm/mach-u300/clock.h
index c34f3ea..4f50ca8 100644
--- a/arch/arm/mach-u300/clock.h
+++ b/arch/arm/mach-u300/clock.h
@@ -31,7 +31,7 @@  struct clk {
 	bool reset;
 	__u16 clk_val;
 	__s8 usecount;
-	__u32 res_reg;
+	void __iomem * res_reg;
 	__u16 res_mask;
 
 	bool hw_ctrld;
diff --git a/arch/arm/mach-u300/include/mach/u300-regs.h b/arch/arm/mach-u300/include/mach/u300-regs.h
index 8b85df4..035fdc9 100644
--- a/arch/arm/mach-u300/include/mach/u300-regs.h
+++ b/arch/arm/mach-u300/include/mach/u300-regs.h
@@ -18,6 +18,12 @@ 
  * the defines are used for setting up the I/O memory mapping.
  */
 
+#ifdef __ASSEMBLER__
+#define IOMEM(a) (a)
+#else
+#define IOMEM(a) (void __iomem *) a
+#endif
+
 /* NAND Flash CS0 */
 #define U300_NAND_CS0_PHYS_BASE		0x80000000
 
@@ -48,13 +54,6 @@ 
 #endif
 
 /*
- * All the following peripherals are specified at their PHYSICAL address,
- * so if you need to access them (in the kernel), you MUST use the macros
- * defined in <asm/io.h> to map to the IO_ADDRESS_AHB() IO_ADDRESS_FAST()
- * etc.
- */
-
-/*
  * AHB peripherals
  */
 
@@ -63,11 +62,11 @@ 
 
 /* Vectored Interrupt Controller 0, servicing 32 interrupts */
 #define U300_INTCON0_BASE		(U300_AHB_PER_PHYS_BASE+0x1000)
-#define U300_INTCON0_VBASE		(U300_AHB_PER_VIRT_BASE+0x1000)
+#define U300_INTCON0_VBASE		IOMEM(U300_AHB_PER_VIRT_BASE+0x1000)
 
 /* Vectored Interrupt Controller 1, servicing 32 interrupts */
 #define U300_INTCON1_BASE		(U300_AHB_PER_PHYS_BASE+0x2000)
-#define U300_INTCON1_VBASE		(U300_AHB_PER_VIRT_BASE+0x2000)
+#define U300_INTCON1_VBASE		IOMEM(U300_AHB_PER_VIRT_BASE+0x2000)
 
 /* Memory Stick Pro (MSPRO) controller */
 #define U300_MSPRO_BASE			(U300_AHB_PER_PHYS_BASE+0x3000)
@@ -115,7 +114,7 @@ 
 
 /* SYSCON */
 #define U300_SYSCON_BASE		(U300_SLOW_PER_PHYS_BASE+0x1000)
-#define U300_SYSCON_VBASE		(U300_SLOW_PER_VIRT_BASE+0x1000)
+#define U300_SYSCON_VBASE		IOMEM(U300_SLOW_PER_VIRT_BASE+0x1000)
 
 /* Watchdog */
 #define U300_WDOG_BASE			(U300_SLOW_PER_PHYS_BASE+0x2000)
@@ -125,7 +124,7 @@ 
 
 /* APP side special timer */
 #define U300_TIMER_APP_BASE		(U300_SLOW_PER_PHYS_BASE+0x4000)
-#define U300_TIMER_APP_VBASE		(U300_SLOW_PER_VIRT_BASE+0x4000)
+#define U300_TIMER_APP_VBASE		IOMEM(U300_SLOW_PER_VIRT_BASE+0x4000)
 
 /* Keypad */
 #define U300_KEYPAD_BASE		(U300_SLOW_PER_PHYS_BASE+0x5000)
@@ -181,5 +180,4 @@ 
  * Virtual accessor macros for static devices
  */
 
-
 #endif