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--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c
@@ -64,6 +64,17 @@
#define NSS_COMMON_CLK_DIV_SGMII_100 4
#define NSS_COMMON_CLK_DIV_SGMII_10 49
+#define QSGMII_PCS_ALL_CH_CTL 0x80
+#define QSGMII_PCS_CH_SPEED_FORCE 0x2
+#define QSGMII_PCS_CH_SPEED_10 0x0
+#define QSGMII_PCS_CH_SPEED_100 0x4
+#define QSGMII_PCS_CH_SPEED_1000 0x8
+#define QSGMII_PCS_CH_SPEED_MASK (QSGMII_PCS_CH_SPEED_FORCE | \
+ QSGMII_PCS_CH_SPEED_10 | \
+ QSGMII_PCS_CH_SPEED_100 | \
+ QSGMII_PCS_CH_SPEED_1000)
+#define QSGMII_PCS_CH_SPEED_SHIFT(x) (x * 4)
+
#define QSGMII_PCS_CAL_LCKDT_CTL 0x120
#define QSGMII_PCS_CAL_LCKDT_CTL_RST BIT(19)
@@ -345,6 +356,12 @@ static int ipq806x_gmac_probe(struct pla
0x1ul << QSGMII_PHY_RX_INPUT_EQU_OFFSET |
0x2ul << QSGMII_PHY_CDR_PI_SLEW_OFFSET |
0xCul << QSGMII_PHY_TX_DRV_AMP_OFFSET);
+
+ regmap_update_bits(gmac->qsgmii_csr,
+ QSGMII_PCS_ALL_CH_CTL,
+ QSGMII_PCS_CH_SPEED_MASK <<
+ QSGMII_PCS_CH_SPEED_SHIFT(gmac->id),
+ 0);
}
plat_dat->has_gmac = true;
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