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FSL I2C driver programs the two I2C busses differently

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The i2c_init() function in fsl_i2c.c programs the two I2C busses differently.
The second I2C bus has its slave address programmed incorrectly and is
missing a 5-us delay.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This commit is contained in:
Timur Tabi 2007-07-03 13:46:32 -05:00 committed by Kim Phillips
parent df33f6b4d6
commit e739bc9579
1 changed files with 2 additions and 1 deletions
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3
drivers/fsl_i2c.c
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@ -69,9 +69,10 @@ i2c_init(int speed, int slaveadd)
dev = (struct fsl_i2c *) (CFG_IMMR + CFG_I2C2_OFFSET);
writeb(0, &dev->cr); /* stop I2C controller */
udelay(5); /* let it shutdown in peace */
writeb(0x3F, &dev->fdr); /* set bus speed */
writeb(0x3F, &dev->dfsrr); /* set default filter */
writeb(slaveadd, &dev->adr); /* write slave address */
writeb(slaveadd << 1, &dev->adr); /* write slave address */
writeb(0x0, &dev->sr); /* clear status register */
writeb(I2C_CR_MEN, &dev->cr); /* start I2C controller */
#endif /* CFG_I2C2_OFFSET */