[U-Boot] [PATCH] i2c: mvtwsi: fix hang on SPL bind

Baruch Siach
2019-04-07T09:30:38Z

The mvebu specific debug register is not accessible when the bind code
runs in SPL. Skip it.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
---
drivers/i2c/mvtwsi.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/i2c/mvtwsi.c b/drivers/i2c/mvtwsi.c
index 74ac0a4aa789..05560e112729 100644
--- a/drivers/i2c/mvtwsi.c
+++ b/drivers/i2c/mvtwsi.c
@@ -801,6 +801,10 @@ static int mvtwsi_i2c_ofdata_to_platdata(struct udevice *bus)

static void twsi_disable_i2c_slave(struct mvtwsi_registers *twsi)
{
+ /* The debug register is not accessible in early boot */
+ if (IS_ENABLED(CONFIG_SPL_BUILD))
+ return;
+
clrbits_le32(&twsi->debug, BIT(18));
}

--
2.20.1