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authorTorsten Fleischer <to-fleischer@t-online.de>2012-04-17 05:37:45 +0000
committerHeiko Schocher <hs@denx.de>2012-07-11 10:54:53 +0200
commitfa86d1c0bf3f4c68aa565952f1fcafbe2aa2c050 (patch)
treef9244803902c1791006fbc66258f3f32bbadda1f /drivers/i2c
parent9ca37d78a35b590c8ecc93a1ecfca2411fde5fb7 (diff)
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mxs-i2c: Fix internal address byte order
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>
Diffstat (limited to 'drivers/i2c')
-rw-r--r--drivers/i2c/mxs_i2c.c2
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);
}