tree 3a491b58c7b5b55531d68524bd1f22e3b00c499b
parent 2fad6ef0b9fc60fa09dc45c3afdaf214e6a0f467
author Omri Itach <omrii@marvell.com> 1438091000 +0300
committer Greg Poist <poist@google.com> 1458845994 -0700

fix: i2c: a385-amc: disable external I2C: prevent bus contention

	A385-AMC has external I2C access via AMC connector, which is needed to:
	- detect remote MSYS PCIe Gen settings (via MSYS i2c EEPROM)
	- configure MSYS Sample at reset values via remote i2c devices

	When A385 is mastering the I2C bus in parallel with MSYS platform,
	I2C bus contention sometimes occur, which leads to invalid board
	configuration for A385 (invalid Board ID from EEPROM, etc..)

	To avoid this issue, this patch currently disable external I2C
	access on A385-AMC side (via GPIO)

Change-Id: I76644ccab224de4fd42007f161269625630f3680
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/22267
Tested-by: Star_Automation <star@marvell.com>