Merge git://git.denx.de/u-boot-marvell

- Fix in kwbimage (return code checking) (Young Xiao)
- Misc updates to Turris Omnia (Marek)

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/i2c/mvtwsi.c b/drivers/i2c/mvtwsi.c
index 74ac0a4aa7..0a2dafcec6 100644
--- a/drivers/i2c/mvtwsi.c
+++ b/drivers/i2c/mvtwsi.c
@@ -271,6 +271,17 @@ static int twsi_wait(struct mvtwsi_registers *twsi, int expected_status,
 	do {
 		control = readl(&twsi->control);
 		if (control & MVTWSI_CONTROL_IFLG) {
+			/*
+			 * On Armada 38x it seems that the controller works as
+			 * if it first set the MVTWSI_CONTROL_IFLAG in the
+			 * control register and only after that it changed the
+			 * status register.
+			 * This sometimes caused weird bugs which only appeared
+			 * on selected I2C speeds and even then only sometimes.
+			 * We therefore add here a simple ndealy(100), which
+			 * seems to fix this weird bug.
+			 */
+			ndelay(100);
 			status = readl(&twsi->status);
 			if (status == expected_status)
 				return 0;