[1/8] registers: add write u8 type

Commit Message

Piotr Wilczek Dec. 11, 2013, 1:07 p.m. UTC

Signed-off-by: Piotr Wilczek <[e-mail]>
Signed-off-by: Kyungmin Park <[e-mail]>
---
 register.c |   10 ++++++++++
 register.h |    3 +++
 types.h    |    1 +
 3 files changed, 14 insertions(+)

Patch

diff --git a/register.c b/register.c
index dfbe145..af992ec 100644
--- a/register.c
+++ b/register.c
@@ -1,5 +1,15 @@ 
 #include "types.h"
 
+inline void writeb(u8 val, u32 addr)
+{
+	*(volatile u32 *)addr = val;
+}
+
+inline u8 readb(u32 addr)
+{
+	return *(volatile u32 *)addr;
+}
+
 inline void writel(u32 val, u32 addr)
 {
 	*(volatile u32 *) addr = val;
diff --git a/register.h b/register.h
index b7831eb..5a89802 100644
--- a/register.h
+++ b/register.h
@@ -3,6 +3,9 @@ 
 
 #include "types.h"
 
+void writeb(u8, u32);
+u8 readb(u32);
+
 void writel(u32, u32);
 u32 readl(u32);
 
diff --git a/types.h b/types.h
index 1e6c56a..636f95b 100644
--- a/types.h
+++ b/types.h
@@ -1,6 +1,7 @@ 
 #ifndef _TYPES_H
 #define _TYPES_H
 
+typedef unsigned char u8;
 typedef unsigned int u32;
 typedef unsigned long long u64;
 #define NULL	((void *) 0)