[U-Boot] [PATCH 12/24] mxc_i2c: change slave addr if conflicts with destination.

The i2c controller cannot be both master and slave in the same transaction.

Signed-off-by: Troy Kisky troy.kisky@boundarydevices.com --- drivers/i2c/mxc_i2c.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/mxc_i2c.c b/drivers/i2c/mxc_i2c.c index e433312..2bff2b8 100644 --- a/drivers/i2c/mxc_i2c.c +++ b/drivers/i2c/mxc_i2c.c @@ -218,6 +218,8 @@ static int i2c_init_transfer(struct mxc_i2c_regs *i2c_regs, /* Wait for controller to be stable */ udelay(50); } + if (readb(&i2c_regs->iadr) == (chip << 1)) + writeb((chip << 1) ^ 2, &i2c_regs->iadr); writeb(0, &i2c_regs->i2sr); ret = wait_for_sr_state(i2c_regs, ST_BUS_IDLE); if (ret < 0)