The first variants of Armada XP SoCs (A0 stepping) have issues related
to the i2c controller which prevent to use the offload mechanism and
lead to a kernel hang during boot.
The driver now checks if offload the mechanism is tagged as broken
and enable it in the opposite case.
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
---
drivers/i2c/busses/i2c-mv64xxx.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index 8be7e42aa4de..de819daa19e6 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -779,8 +779,10 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data,
* Transaction Generator support and the errata fix.
*/
if (of_device_is_compatible(np, "marvell,mv78230-i2c")) {
- drv_data->offload_enabled = true;
drv_data->errata_delay = true;
+
+ if (!of_find_property(np, "offload-broken", NULL))
+ drv_data->offload_enabled = true;
}
out:
--
1.8.1.2
--
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