netdev - [PATCH net-next v7 6/7] stmmac: intel: interface switching support for EHL platform

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Message-Id: <20250206131859.2960543-7-yong.liang.choong@linux.intel.com>
Date: Thu,  6 Feb 2025 21:18:58 +0800
From: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
To: Simon Horman <horms@...nel.org>,
	Jose Abreu <joabreu@...opsys.com>,
	Jose Abreu <Jose.Abreu@...opsys.com>,
	David E Box <david.e.box@...ux.intel.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	Borislav Petkov <bp@...en8.de>,
	Dave Hansen <dave.hansen@...ux.intel.com>,
	"H . Peter Anvin" <hpa@...or.com>,
	Rajneesh Bhardwaj <irenic.rajneesh@...il.com>,
	David E Box <david.e.box@...el.com>,
	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>,
	Jiawen Wu <jiawenwu@...stnetic.com>,
	Mengyuan Lou <mengyuanlou@...-swift.com>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Hans de Goede <hdegoede@...hat.com>,
	Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>,
	Richard Cochran <richardcochran@...il.com>,
	Serge Semin <fancer.lancer@...il.com>
Cc: x86@...nel.org,
	linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org,
	platform-driver-x86@...r.kernel.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org
Subject: [PATCH net-next v7 6/7] stmmac: intel: interface switching support for EHL platform

The intel_config_serdes function was provided to handle interface mode
changes for the EHL platform.

The Modphy register lane was provided to configure the serdes when
changing interface modes.

Signed-off-by: Choong Yong Liang <yong.liang.choong@...ux.intel.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-intel.c | 31 ++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 837fd3fbaedb..e7f5d023eaf2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -86,6 +86,8 @@ static const struct pmc_serdes_regs pid_modphy1_2p5g_regs[] = {
 	{}
 };
 
+static const int ehl_tsn_lane_regs[] = {7, 8, 9, 10, 11};
+
 static int stmmac_pci_find_phy_addr(struct pci_dev *pdev,
 				    const struct dmi_system_id *dmi_list)
 {
@@ -764,6 +766,8 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 static int ehl_common_data(struct pci_dev *pdev,
 			   struct plat_stmmacenet_data *plat)
 {
+	struct intel_priv_data *intel_priv = plat->bsp_priv;
+
 	plat->rx_queues_to_use = 8;
 	plat->tx_queues_to_use = 8;
 	plat->flags |= STMMAC_FLAG_USE_PHY_WOL;
@@ -779,12 +783,17 @@ static int ehl_common_data(struct pci_dev *pdev,
 	plat->safety_feat_cfg->prtyen = 0;
 	plat->safety_feat_cfg->tmouten = 0;
 
+	intel_priv->tsn_lane_regs = ehl_tsn_lane_regs;
+	intel_priv->max_tsn_lane_regs = ARRAY_SIZE(ehl_tsn_lane_regs);
+
 	return intel_mgbe_common_data(pdev, plat);
 }
 
 static int ehl_sgmii_data(struct pci_dev *pdev,
 			  struct plat_stmmacenet_data *plat)
 {
+	struct intel_priv_data *intel_priv = plat->bsp_priv;
+
 	plat->bus_id = 1;
 	plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
 	plat->speed_mode_2500 = intel_speed_mode_2500;
@@ -793,6 +802,11 @@ static int ehl_sgmii_data(struct pci_dev *pdev,
 	plat->mac_finish = intel_mac_finish;
 	plat->clk_ptp_rate = 204800000;
 
+	intel_priv->pid_1g.regs = pid_modphy3_1g_regs;
+	intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy3_1g_regs);
+	intel_priv->pid_2p5g.regs = pid_modphy3_2p5g_regs;
+	intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy3_2p5g_regs);
+
 	return ehl_common_data(pdev, plat);
 }
 
@@ -845,11 +859,18 @@ static struct stmmac_pci_info ehl_pse0_rgmii1g_info = {
 static int ehl_pse0_sgmii1g_data(struct pci_dev *pdev,
 				 struct plat_stmmacenet_data *plat)
 {
+	struct intel_priv_data *intel_priv = plat->bsp_priv;
+
 	plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
-	plat->speed_mode_2500 = intel_speed_mode_2500;
 	plat->serdes_powerup = intel_serdes_powerup;
 	plat->serdes_powerdown = intel_serdes_powerdown;
 	plat->mac_finish = intel_mac_finish;
+
+	intel_priv->pid_1g.regs = pid_modphy1_1g_regs;
+	intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy1_1g_regs);
+	intel_priv->pid_2p5g.regs = pid_modphy1_2p5g_regs;
+	intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy1_2p5g_regs);
+
 	return ehl_pse0_common_data(pdev, plat);
 }
 
@@ -887,11 +908,19 @@ static struct stmmac_pci_info ehl_pse1_rgmii1g_info = {
 static int ehl_pse1_sgmii1g_data(struct pci_dev *pdev,
 				 struct plat_stmmacenet_data *plat)
 {
+	struct intel_priv_data *intel_priv = plat->bsp_priv;
+
 	plat->phy_interface = PHY_INTERFACE_MODE_SGMII;
 	plat->speed_mode_2500 = intel_speed_mode_2500;
 	plat->serdes_powerup = intel_serdes_powerup;
 	plat->serdes_powerdown = intel_serdes_powerdown;
 	plat->mac_finish = intel_mac_finish;
+
+	intel_priv->pid_1g.regs = pid_modphy1_1g_regs;
+	intel_priv->pid_1g.num_regs = ARRAY_SIZE(pid_modphy1_1g_regs);
+	intel_priv->pid_2p5g.regs = pid_modphy1_2p5g_regs;
+	intel_priv->pid_2p5g.num_regs = ARRAY_SIZE(pid_modphy1_2p5g_regs);
+
 	return ehl_pse1_common_data(pdev, plat);
 }
 
-- 
2.34.1