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authorPeter Tyser <ptyser@xes-inc.com>2009-04-24 15:34:06 -0500
committerWolfgang Denk <wd@denx.de>2009-06-12 20:39:45 +0200
commit54afc6ee10c8cd09598d814d49e601359b005e49 (patch)
treec294fcd1fa613a10cdc00f89671c5079af1eeb4b /board/esd/cpci750
parent9c90a2c8e87414007a016b7cd099ac1e32fd301b (diff)
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cpci750: i2c cleanup
The following changes were made, primarily to bring the cpci750 i2c driver in line with U-Boot's current I2C API: - Made i2c_init() globally accessible - Made i2c_read() and i2c_write() return an integer - Updated i2c_init() calls to pass in CONFIG_SYS_I2C_SLAVE in the offhand chance someone adds slave support in the future Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'board/esd/cpci750')
-rw-r--r--board/esd/cpci750/i2c.c16
1 files changed, 10 insertions, 6 deletions
diff --git a/board/esd/cpci750/i2c.c b/board/esd/cpci750/i2c.c
index d95567f..b752903 100644
--- a/board/esd/cpci750/i2c.c
+++ b/board/esd/cpci750/i2c.c
@@ -27,6 +27,7 @@
#include <common.h>
#include <mpc8xx.h>
#include <malloc.h>
+#include <i2c.h>
#include "../../Marvell/include/mv_gen_reg.h"
#include "../../Marvell/include/core.h"
@@ -41,7 +42,7 @@
/* Assuming that there is only one master on the bus (us) */
-static void i2c_init (int speed, int slaveaddr)
+void i2c_init (int speed, int slaveaddr)
{
unsigned int n, m, freq, margin, power;
unsigned int actualN = 0, actualM = 0;
@@ -375,7 +376,7 @@ i2c_set_dev_offset (uchar dev_addr, unsigned int offset, int ten_bit,
return 0; /* sucessful completion */
}
-uchar
+int
i2c_read (uchar dev_addr, unsigned int offset, int alen, uchar * data,
int len)
{
@@ -384,7 +385,8 @@ i2c_read (uchar dev_addr, unsigned int offset, int alen, uchar * data,
DP (puts ("i2c_read\n"));
- i2c_init (i2cFreq, 0); /* set the i2c frequency */
+ /* set the i2c frequency */
+ i2c_init (i2cFreq, CONFIG_SYS_I2C_SLAVE);
status = i2c_set_dev_offset (dev_addr, offset, 0, alen); /* send the slave address + offset */
if (status) {
@@ -423,7 +425,7 @@ void i2c_stop (void)
}
-uchar
+int
i2c_write (uchar dev_addr, unsigned int offset, int alen, uchar * data,
int len)
{
@@ -432,7 +434,8 @@ i2c_write (uchar dev_addr, unsigned int offset, int alen, uchar * data,
DP (puts ("i2c_write\n"));
- i2c_init (i2cFreq, 0); /* set the i2c frequency */
+ /* set the i2c frequency */
+ i2c_init (i2cFreq, CONFIG_SYS_I2C_SLAVE);
status = i2c_set_dev_offset (dev_addr, offset, 0, alen); /* send the slave address + offset */
if (status) {
@@ -468,7 +471,8 @@ int i2c_probe (uchar chip)
DP (puts ("i2c_probe\n"));
- i2c_init (i2cFreq, 0); /* set the i2c frequency */
+ /* set the i2c frequency */
+ i2c_init (i2cFreq, CONFIG_SYS_I2C_SLAVE);
status = i2c_set_dev_offset (chip, 0, 0, 0); /* send the slave address + no offset */
if (status) {