[U-Boot-Users] soft_i2c

[Christian Hohnstaedt]

Hi, 

a small patch for soft I2C to make it more readable
and more general - should not break anything.

best regards
Christian

-- 
Christian Hohnstaedt                   Innominate Security Technologies AG
software engineer                      networking people
tel: +49.30.6392-3308                  http://www.innominate.com
-------------- next part --------------
Index: soft_i2c.c
===================================================================
RCS file: /cvsroot/u-boot/u-boot/common/soft_i2c.c,v
retrieving revision 1.4
diff -u -r1.4 soft_i2c.c
--- soft_i2c.c	27 Jun 2003 21:32:32 -0000	1.4
+++ soft_i2c.c	23 Apr 2004 13:45:49 -0000
@@ -30,9 +30,17 @@
 #include <ioports.h>
 #endif
 #include <i2c.h>
+#include <asm/hardware.h>
 
 #if defined(CONFIG_SOFT_I2C)
 
+#ifdef	CONFIG_MPC8260
+  #define DECLARE_I2C_PORT volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
+#endif
+#ifdef	CONFIG_8xx
+  #define DECLARE_I2C_PORT volatile immap_t *immr = (immap_t *)CFG_IMMR;
+#endif
+
 /* #define	DEBUG_I2C	*/
 
 
@@ -75,12 +83,8 @@
  */
 static void send_reset(void)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
+		
 	int j;
 
 	I2C_SCL(1);
@@ -106,12 +110,7 @@
  */
 static void send_start(void)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
 
 	I2C_DELAY;
 	I2C_SDA(1);
@@ -128,12 +127,7 @@
  */
 static void send_stop(void)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
 
 	I2C_SCL(0);
 	I2C_DELAY;
@@ -153,12 +147,7 @@
  */
 static void send_ack(int ack)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
 
 	I2C_ACTIVE;
 	I2C_SCL(0);
@@ -181,12 +170,8 @@
  */
 static int write_byte(uchar data)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
+
 	int j;
 	int nack;
 
@@ -229,12 +214,8 @@
  */
 static uchar read_byte(int ack)
 {
-#ifdef	CONFIG_MPC8260
-	volatile ioport_t *iop = ioport_addr((immap_t *)CFG_IMMR, I2C_PORT);
-#endif
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
+	DECLARE_I2C_PORT
+		
 	int  data;
 	int  j;