[PATCH 2/2] net: dwc_eth_qos_rockchip: Fix disable of RX/TX delay for RK3588

[Jonas Karlman]

When rgmii-rxid/txid/id phy-mode is used the MAC should not add RX
and/or TX delay. Currently RX/TX delay is configured as enabled using
zero as delay value for the rgmii-rxid/txid/id modes.

Change to disable RX and/or TX delay and using zero as delay value.

Signed-off-by: Jonas Karlman <jonas at kwiboo.se>
---
 drivers/net/dwc_eth_qos_rockchip.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/dwc_eth_qos_rockchip.c b/drivers/net/dwc_eth_qos_rockchip.c
index 3e10e07403c1..f3a0f63003ea 100644
--- a/drivers/net/dwc_eth_qos_rockchip.c
+++ b/drivers/net/dwc_eth_qos_rockchip.c
@@ -134,6 +134,10 @@ static int rk3568_set_gmac_speed(struct udevice *dev)
 	return 0;
 }
 
+#define RK3588_DELAY_ENABLE(id, tx, rx) \
+	(((tx) ? RK3588_GMAC_TXCLK_DLY_ENABLE(id) : RK3588_GMAC_TXCLK_DLY_DISABLE(id)) | \
+	 ((rx) ? RK3588_GMAC_RXCLK_DLY_ENABLE(id) : RK3588_GMAC_RXCLK_DLY_DISABLE(id)))
+
 /* sys_grf */
 #define RK3588_GRF_GMAC_CON7			0x031c
 #define RK3588_GRF_GMAC_CON8			0x0320
@@ -192,8 +196,7 @@ static int rk3588_set_to_rgmii(struct udevice *dev,
 		     RK3588_GMAC_CLK_RGMII_MODE(id));
 
 	regmap_write(data->grf, RK3588_GRF_GMAC_CON7,
-		     RK3588_GMAC_RXCLK_DLY_ENABLE(id) |
-		     RK3588_GMAC_TXCLK_DLY_ENABLE(id));
+		     RK3588_DELAY_ENABLE(id, tx_delay, rx_delay));
 
 	regmap_write(data->grf, offset_con,
 		     RK3588_GMAC_CLK_RX_DL_CFG(rx_delay) |
-- 
2.48.1