net: stmmac: socfpga: Agilex5 EMAC platform configuration

Agilex5 HPS EMAC uses the dwxgmac-3.10a IP, unlike previous socfpga
platforms which use dwmac1000 IP. Due to differences in platform
configuration, Agilex5 requires a distinct setup.

Introduce a setup_plat_dat() callback in socfpga_dwmac_ops to handle
platform-specific setup. This callback is invoked before
stmmac_dvr_probe() to ensure the platform data is correctly
configured. Also, implemented separate setup_plat_dat() callback for
current socfpga platforms and Agilex5.

Signed-off-by: Rohan G Thomas <rohan.g.thomas@altera.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20251101-agilex5_ext-v2-1-a6b51b4dca4d@altera.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
index 2ff5db6d41ca08a1652d57f3eb73923b9a9558bf..5666b01723643984f21b996e7653a36f4dc22e30 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
@@ -44,6 +44,7 @@
 struct socfpga_dwmac;
 struct socfpga_dwmac_ops {
        int (*set_phy_mode)(struct socfpga_dwmac *dwmac_priv);
+       void (*setup_plat_dat)(struct socfpga_dwmac *dwmac_priv);
 };
 
 struct socfpga_dwmac {
@@ -441,6 +442,23 @@ static int socfpga_dwmac_init(struct platform_device *pdev, void *bsp_priv)
        return dwmac->ops->set_phy_mode(dwmac);
 }
 
+static void socfpga_gen5_setup_plat_dat(struct socfpga_dwmac *dwmac)
+{
+       struct plat_stmmacenet_data *plat_dat = dwmac->plat_dat;
+
+       plat_dat->core_type = DWMAC_CORE_GMAC;
+
+       /* Rx watchdog timer in dwmac is buggy in this hw */
+       plat_dat->riwt_off = 1;
+}
+
+static void socfpga_agilex5_setup_plat_dat(struct socfpga_dwmac *dwmac)
+{
+       struct plat_stmmacenet_data *plat_dat = dwmac->plat_dat;
+
+       plat_dat->core_type = DWMAC_CORE_XGMAC;
+}
+
 static int socfpga_dwmac_probe(struct platform_device *pdev)
 {
        struct plat_stmmacenet_data *plat_dat;
@@ -497,25 +515,31 @@ static int socfpga_dwmac_probe(struct platform_device *pdev)
        plat_dat->pcs_init = socfpga_dwmac_pcs_init;
        plat_dat->pcs_exit = socfpga_dwmac_pcs_exit;
        plat_dat->select_pcs = socfpga_dwmac_select_pcs;
-       plat_dat->core_type = DWMAC_CORE_GMAC;
 
-       plat_dat->riwt_off = 1;
+       ops->setup_plat_dat(dwmac);
 
        return devm_stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res);
 }
 
 static const struct socfpga_dwmac_ops socfpga_gen5_ops = {
        .set_phy_mode = socfpga_gen5_set_phy_mode,
+       .setup_plat_dat = socfpga_gen5_setup_plat_dat,
 };
 
 static const struct socfpga_dwmac_ops socfpga_gen10_ops = {
        .set_phy_mode = socfpga_gen10_set_phy_mode,
+       .setup_plat_dat = socfpga_gen5_setup_plat_dat,
+};
+
+static const struct socfpga_dwmac_ops socfpga_agilex5_ops = {
+       .set_phy_mode = socfpga_gen10_set_phy_mode,
+       .setup_plat_dat = socfpga_agilex5_setup_plat_dat,
 };
 
 static const struct of_device_id socfpga_dwmac_match[] = {
        { .compatible = "altr,socfpga-stmmac", .data = &socfpga_gen5_ops },
        { .compatible = "altr,socfpga-stmmac-a10-s10", .data = &socfpga_gen10_ops },
-       { .compatible = "altr,socfpga-stmmac-agilex5", .data = &socfpga_gen10_ops },
+       { .compatible = "altr,socfpga-stmmac-agilex5", .data = &socfpga_agilex5_ops },
        { }
 };
 MODULE_DEVICE_TABLE(of, socfpga_dwmac_match);