The correct setting for the RGMII ports on LS1046ARDB is to
enable delay on both Rx and Tx so the interface mode used must
be PHY_INTERFACE_MODE_RGMII_ID. There is a pull-up that turns
on Rx internal delay by default and the u-boot does not
override that (yet) so in u-boot the interface is functional.
In Linux the PHY driver is clearing the Rx delay for the
"rgmii-txid" mode and the reception does not work.
Changing the RGMII mode to internal delay here ensures that
device tree fix-ups for the PHY connection type turn on both
Tx and Rx internal delay in Linux.
Fixes: cc1aa218f510 ("armv8/ls1046a: RGMII PHY requires internal
delay on Tx")
Signed-off-by: Madalin Bucur <[email protected]>
---
drivers/net/fm/ls1046.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/fm/ls1046.c b/drivers/net/fm/ls1046.c
index 3617ad9..49b540b 100644
--- a/drivers/net/fm/ls1046.c
+++ b/drivers/net/fm/ls1046.c
@@ -71,12 +71,12 @@ phy_interface_t fman_port_enet_if(enum fm_port port)
if (port == FM1_DTSEC3)
if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC1) ==
FSL_CHASSIS2_RCWSR13_EC1_DTSEC3_RGMII)
- return PHY_INTERFACE_MODE_RGMII_TXID;
+ return PHY_INTERFACE_MODE_RGMII_ID;
if (port == FM1_DTSEC4)
if ((rcwsr13 & FSL_CHASSIS2_RCWSR13_EC2) ==
FSL_CHASSIS2_RCWSR13_EC2_DTSEC4_RGMII)
- return PHY_INTERFACE_MODE_RGMII_TXID;
+ return PHY_INTERFACE_MODE_RGMII_ID;
/* handle SGMII, only MAC 2/5/6/9/10 available */
switch (port) {
--
2.1.0
