linux-kernel - [PATCH 2/3] net: stmmac: dwmac-rk: Use DELAY

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Message-ID: <20250306203858.1677595-3-jonas@kwiboo.se>
Date: Thu,  6 Mar 2025 20:38:53 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
	David Wu <david.wu@...k-chips.com>
Cc: netdev@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Jonas Karlman <jonas@...boo.se>,
	linux-stm32@...md-mailman.stormreply.com
Subject: [PATCH 2/3] net: stmmac: dwmac-rk: Use DELAY_ENABLE macro for RK3566/RK3568

Support for Rockchip RK3566/RK3568 GMAC was added without use of the
DELAY_ENABLE macro to assist with enable/disable use of MAC rx/tx delay.

Change to use the DELAY_ENABLE macro to help disable MAC delay when
RGMII_ID/RXID/TXID is used. This also re-order to enable/disable before
the delay is written to match all other GMAC and vendor kernel.

Fixes: 3bb3d6b1c195 ("net: stmmac: Add RK3566/RK3568 SoC support")
Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 297fa93e4a39..37eb86e4e325 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1049,14 +1049,13 @@ static void rk3568_set_to_rgmii(struct rk_priv_data *bsp_priv,
 	con1 = (bsp_priv->id == 1) ? RK3568_GRF_GMAC1_CON1 :
 				     RK3568_GRF_GMAC0_CON1;
 
+	regmap_write(bsp_priv->grf, con1,
+		     RK3568_GMAC_PHY_INTF_SEL_RGMII |
+		     DELAY_ENABLE(RK3568, tx_delay, rx_delay));
+
 	regmap_write(bsp_priv->grf, con0,
 		     RK3568_GMAC_CLK_RX_DL_CFG(rx_delay) |
 		     RK3568_GMAC_CLK_TX_DL_CFG(tx_delay));
-
-	regmap_write(bsp_priv->grf, con1,
-		     RK3568_GMAC_PHY_INTF_SEL_RGMII |
-		     RK3568_GMAC_RXCLK_DLY_ENABLE |
-		     RK3568_GMAC_TXCLK_DLY_ENABLE);
 }
 
 static void rk3568_set_to_rmii(struct rk_priv_data *bsp_priv)
-- 
2.48.1