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-rw-r--r--drivers/net/ethernet/airoha/airoha_eth.c4
-rw-r--r--drivers/net/ethernet/airoha/airoha_regs.h3
2 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/airoha/airoha_eth.c b/drivers/net/ethernet/airoha/airoha_eth.c
index 81ea01a652b9..833dd911980b 100644
--- a/drivers/net/ethernet/airoha/airoha_eth.c
+++ b/drivers/net/ethernet/airoha/airoha_eth.c
@@ -1710,7 +1710,9 @@ static void airhoha_set_gdm2_loopback(struct airoha_gdm_port *port)
airoha_fe_wr(eth, REG_GDM_RXCHN_EN(2), 0xffff);
airoha_fe_rmw(eth, REG_GDM_LPBK_CFG(2),
LPBK_CHAN_MASK | LPBK_MODE_MASK | LPBK_EN_MASK,
- FIELD_PREP(LPBK_CHAN_MASK, chan) | LPBK_EN_MASK);
+ FIELD_PREP(LPBK_CHAN_MASK, chan) |
+ LBK_GAP_MODE_MASK | LBK_LEN_MODE_MASK |
+ LBK_CHAN_MODE_MASK | LPBK_EN_MASK);
airoha_fe_rmw(eth, REG_GDM_LEN_CFG(2),
GDM_SHORT_LEN_MASK | GDM_LONG_LEN_MASK,
FIELD_PREP(GDM_SHORT_LEN_MASK, 60) |
diff --git a/drivers/net/ethernet/airoha/airoha_regs.h b/drivers/net/ethernet/airoha/airoha_regs.h
index e1c15c20be8e..69c5a143db8c 100644
--- a/drivers/net/ethernet/airoha/airoha_regs.h
+++ b/drivers/net/ethernet/airoha/airoha_regs.h
@@ -151,6 +151,9 @@
#define LPBK_LEN_MASK GENMASK(23, 10)
#define LPBK_CHAN_MASK GENMASK(8, 4)
#define LPBK_MODE_MASK GENMASK(3, 1)
+#define LBK_GAP_MODE_MASK BIT(3)
+#define LBK_LEN_MODE_MASK BIT(2)
+#define LBK_CHAN_MODE_MASK BIT(1)
#define LPBK_EN_MASK BIT(0)
#define REG_GDM_TXCHN_EN(_n) (GDM_BASE(_n) + 0x24)