From: Timur Tabi Date: Tue, 3 Jul 2007 18:46:32 +0000 (-0500) Subject: FSL I2C driver programs the two I2C busses differently X-Git-Tag: v1.3.0-rc1~19^2~20^2~9^2~12 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=e739bc95797aac4fefc4c75b55c7c78e59d3ea9c;p=u-boot FSL I2C driver programs the two I2C busses differently 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 Signed-off-by: Kim Phillips --- diff --git a/drivers/fsl_i2c.c b/drivers/fsl_i2c.c index ebae5af154..22485ea916 100644 --- a/drivers/fsl_i2c.c +++ b/drivers/fsl_i2c.c @@ -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 */