dany/u-boot-megous
1
0
Fork 0
mirror of https://xff.cz/git/u-boot/ synced 2025-09-01 16:52:14 +02:00
Code Issues Packages Projects Releases Wiki Activity

i2c: Zynq: Support for TI PCA9548 bus multiplexer

Browse Source 
(Interface is not quite the same as Phillips PCA9547.)

Signed-off-by: Michael Burr <michael.burr@logicpd.com>
Cc: Heiko Schocher <hs@denx.de>
Cc: Michal Simek <monstr@monstr.eu>
This commit is contained in:
Michael Burr
2013-09-23 22:35:45 +00:00
committed by Heiko Schocher
parent b089d039b1
commit e66587495d
2 changed files with 7 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/i2c/i2c_core.c
View File

@@ -138,6 +138,11 @@ static int i2c_mux_set(struct i2c_adapter *adap, int mux_id, int chip,
return -1;
buf = (uint8_t)((channel & 0x07) | (1 << 3));
break;
case I2C_MUX_PCA9548_ID:
if (channel > 7)
return -1;
buf = (uint8_t)(0x01 << channel);
break;
default:
printf("%s: wrong mux id: %d\n", __func__, mux_id);
return -1;