YT8531SH-CA PHY will switch to SDS space automatically when UTP and
SDS media are not present, causing failure to link up. Add the special
configuration to fix it.
Fixes: 3d0af7066759 ("net/ngbe: setup PHY link")
Fixes: 1c44384fce76 ("net/ngbe: support custom PHY interfaces")
Cc: sta...@dpdk.org
Signed-off-by: Jiawen Wu <jiawe...@trustnetic.com>
---
drivers/net/ngbe/base/ngbe_phy_yt.c | 4 ++++
drivers/net/ngbe/base/ngbe_phy_yt.h | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/net/ngbe/base/ngbe_phy_yt.c
b/drivers/net/ngbe/base/ngbe_phy_yt.c
index ea313cd9a5..a374b015fd 100644
--- a/drivers/net/ngbe/base/ngbe_phy_yt.c
+++ b/drivers/net/ngbe/base/ngbe_phy_yt.c
@@ -320,6 +320,10 @@ s32 ngbe_setup_phy_link_yt(struct ngbe_hw *hw, u32 speed,
value |= value_r4;
ngbe_write_phy_reg_mdi(hw, YT_ANA, 0, value);
+ /* config for yt8531sh-ca */
+ ngbe_write_phy_reg_ext_yt(hw, YT_SPEC_CONF, 0,
+ YT_SPEC_CONF_8531SH_CA);
+
/* software reset to make the above configuration
* take effect
*/
diff --git a/drivers/net/ngbe/base/ngbe_phy_yt.h
b/drivers/net/ngbe/base/ngbe_phy_yt.h
index ddf992e79a..c45bec7ce7 100644
--- a/drivers/net/ngbe/base/ngbe_phy_yt.h
+++ b/drivers/net/ngbe/base/ngbe_phy_yt.h
@@ -32,6 +32,8 @@
#define YT_MISC 0xA006
#define YT_MISC_FIBER_PRIO MS16(8, 0x1) /* 0 for UTP */
#define YT_MISC_RESV MS16(0, 0x1)
+#define YT_SPEC_CONF 0xA023
+#define YT_SPEC_CONF_8531SH_CA 0x4031
/* SDS EXT */
#define YT_AUTO 0xA5
--
2.27.0
