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| author | Peter Tyser <ptyser@xes-inc.com> | 2009-04-24 15:34:06 -0500 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2009-06-12 20:39:45 +0200 |
| commit | 54afc6ee10c8cd09598d814d49e601359b005e49 (patch) | |
| tree | c294fcd1fa613a10cdc00f89671c5079af1eeb4b /board/esd/cpci750/i2c.c | |
| parent | 9c90a2c8e87414007a016b7cd099ac1e32fd301b (diff) | |
| download | u-boot-imx-54afc6ee10c8cd09598d814d49e601359b005e49.zip u-boot-imx-54afc6ee10c8cd09598d814d49e601359b005e49.tar.gz u-boot-imx-54afc6ee10c8cd09598d814d49e601359b005e49.tar.bz2 | |
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/i2c.c')
| -rw-r--r-- | board/esd/cpci750/i2c.c | 16 |
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) { |