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mxs-i2c: Fix internal address byte order

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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>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Stefano Babic <sbabic@denx.de>
This commit is contained in:
Torsten Fleischer 2012-04-17 05:37:45 +00:00 committed by Heiko Schocher
parent 9ca37d78a3
commit fa86d1c0bf
1 changed files with 1 additions and 1 deletions
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2
drivers/i2c/mxs_i2c.c
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@ -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);
}