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Make fsl-i2c not conflict with SOFT I2C

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Signed-off-by: Timur Tabi <timur@freescale.com>
This commit is contained in:
Joakim Tjernlund 2006-11-28 16:17:27 -06:00 committed by Kim Phillips
parent 14198bf768
commit 1939d96944
2 changed files with 10 additions and 11 deletions
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17
drivers/fsl_i2c.c
View file

@ -29,6 +29,9 @@
#define I2C_TIMEOUT (CFG_HZ / 4)
#define I2C_READ_BIT 1
#define I2C_WRITE_BIT 0
/* Initialize the bus pointer to whatever one the SPD EEPROM is on.
* Default is bus 0. This is necessary because the DDR initialization
* runs from ROM, and we can't switch buses because we can't modify
@ -110,7 +113,7 @@ i2c_wait(int write)
return -1;
}
if (write == I2C_WRITE && (csr & I2C_SR_RXAK)) {
if (write == I2C_WRITE_BIT && (csr & I2C_SR_RXAK)) {
debug("i2c_wait: No RXACK\n");
return -1;
}
@ -131,7 +134,7 @@ i2c_write_addr (u8 dev, u8 dir, int rsta)
writeb((dev << 1) | dir, &i2c_dev[i2c_bus_num]->dr);
if (i2c_wait(I2C_WRITE) < 0)
if (i2c_wait(I2C_WRITE_BIT) < 0)
return 0;
return 1;
@ -148,7 +151,7 @@ __i2c_write(u8 *data, int length)
for (i = 0; i < length; i++) {
writeb(data[i], &i2c_dev[i2c_bus_num]->dr);
if (i2c_wait(I2C_WRITE) < 0)
if (i2c_wait(I2C_WRITE_BIT) < 0)
break;
}
@ -167,7 +170,7 @@ __i2c_read(u8 *data, int length)
readb(&i2c_dev[i2c_bus_num]->dr);
for (i = 0; i < length; i++) {
if (i2c_wait(I2C_READ) < 0)
if (i2c_wait(I2C_READ_BIT) < 0)
break;
/* Generate ack on last next to last byte */
@ -192,9 +195,9 @@ i2c_read(u8 dev, uint addr, int alen, u8 *data, int length)
u8 *a = (u8*)&addr;
if (i2c_wait4bus() >= 0
&& i2c_write_addr(dev, I2C_WRITE, 0) != 0
&& i2c_write_addr(dev, I2C_WRITE_BIT, 0) != 0
&& __i2c_write(&a[4 - alen], alen) == alen
&& i2c_write_addr(dev, I2C_READ, 1) != 0) {
&& i2c_write_addr(dev, I2C_READ_BIT, 1) != 0) {
i = __i2c_read(data, length);
}
@ -213,7 +216,7 @@ i2c_write(u8 dev, uint addr, int alen, u8 *data, int length)
u8 *a = (u8*)&addr;
if (i2c_wait4bus() >= 0
&& i2c_write_addr(dev, I2C_WRITE, 0) != 0
&& i2c_write_addr(dev, I2C_WRITE_BIT, 0) != 0
&& __i2c_write(&a[4 - alen], alen) == alen) {
i = __i2c_write(data, length);
}

4
include/asm-ppc/fsl_i2c.h
View file

@ -83,8 +83,4 @@ typedef struct fsl_i2c {
u8 res6[0xE8];
} fsl_i2c_t;
#define I2C_READ 1
#define I2C_WRITE 0
#endif /* _ASM_I2C_H_ */