The PHY for the debug interface was placed on the board for the
pg_wcom_ls102x. Hence only when a piggy is plugged, a RJ45 jack
including magnetics is connected to the MDI of the PHY. Without a
piggy the MDI lines are left floating and it does not make sense to
have an active debug PHY.
In case of expu1 an active PHY without a piggy even led to increased
jitter for syncE.
This patch only deactivates the prst line of the debug PHY when a piggy
is detected persent.
Signed-off-by: Rainer Boschung <rainer.bosch...@hitachienergy.com>
Signed-off-by: Aleksandar Gerasimovski
<aleksandar.gerasimov...@hitachienergy.com>
---
board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
b/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
index 2be2b64..cff18dc 100644
--- a/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
+++ b/board/keymile/pg-wcom-ls102xa/pg-wcom-ls102xa.c
@@ -91,8 +91,10 @@ int board_early_init_f(void)
qrio_prstcfg(WCOM_CLIPS_RST, PRSTCFG_POWUP_UNIT_RST);
qrio_prst(WCOM_CLIPS_RST, false, false);
#endif
+
+ /* deasset debug phy reset only if piggy is present */
qrio_prstcfg(KM_DBG_ETH_RST, PRSTCFG_POWUP_UNIT_CORE_RST);
- qrio_prst(KM_DBG_ETH_RST, false, false);
+ qrio_prst(KM_DBG_ETH_RST, !qrio_get_pgy_pres_pin(), false);
i2c_deblock_gpio_cfg();
--
1.8.3.1
