Large EEPROMs, e.g. 24lc32, need 2 byte to address the internal memory. These devices require that the high byte of the internal address has to be written first. The mxs_i2c driver currently writes the address' low byte first.
The following patch fixes the byte order of the internal address that should be written to the I2C device.
Signed-off-by: Torsten Fleischer to-fleischer@t-online.de
CC: Marek Vasut marex@denx.de CC: Stefano Babic sbabic@denx.de CC: Fabio Estevam fabio.estevam@freescale.com --- drivers/i2c/mxs_i2c.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/i2c/mxs_i2c.c b/drivers/i2c/mxs_i2c.c index c8fea32..48aaaa6 100644 --- a/drivers/i2c/mxs_i2c.c +++ b/drivers/i2c/mxs_i2c.c @@ -97,7 +97,7 @@ void mxs_i2c_write(uchar chip, uint addr, int alen,
for (i = 0; i < alen; i++) { data >>= 8; - data |= ((char *)&addr)[i] << 24; + data |= ((char *)&addr)[alen - i - 1] << 24; if ((i & 3) == 2) writel(data, &i2c_regs->hw_i2c_data); }