net: stmmac: add imx93 platform support

Add imx93 platform support for dwmac-imx driver.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index bd52fb7..ac8580f 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
@@ -31,6 +31,12 @@
 #define GPR_ENET_QOS_CLK_TX_CLK_SEL    (0x1 << 20)
 #define GPR_ENET_QOS_RGMII_EN          (0x1 << 21)
 
+#define MX93_GPR_ENET_QOS_INTF_MODE_MASK       GENMASK(3, 0)
+#define MX93_GPR_ENET_QOS_INTF_SEL_MII         (0x0 << 1)
+#define MX93_GPR_ENET_QOS_INTF_SEL_RMII                (0x4 << 1)
+#define MX93_GPR_ENET_QOS_INTF_SEL_RGMII       (0x1 << 1)
+#define MX93_GPR_ENET_QOS_CLK_GEN_EN           (0x1 << 0)
+
 struct imx_dwmac_ops {
        u32 addr_width;
        bool mac_rgmii_txclk_auto_adj;
@@ -90,6 +96,35 @@ imx8dxl_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
        return ret;
 }
 
+static int imx93_set_intf_mode(struct plat_stmmacenet_data *plat_dat)
+{
+       struct imx_priv_data *dwmac = plat_dat->bsp_priv;
+       int val;
+
+       switch (plat_dat->interface) {
+       case PHY_INTERFACE_MODE_MII:
+               val = MX93_GPR_ENET_QOS_INTF_SEL_MII;
+               break;
+       case PHY_INTERFACE_MODE_RMII:
+               val = MX93_GPR_ENET_QOS_INTF_SEL_RMII;
+               break;
+       case PHY_INTERFACE_MODE_RGMII:
+       case PHY_INTERFACE_MODE_RGMII_ID:
+       case PHY_INTERFACE_MODE_RGMII_RXID:
+       case PHY_INTERFACE_MODE_RGMII_TXID:
+               val = MX93_GPR_ENET_QOS_INTF_SEL_RGMII;
+               break;
+       default:
+               dev_dbg(dwmac->dev, "imx dwmac doesn't support %d interface\n",
+                        plat_dat->interface);
+               return -EINVAL;
+       }
+
+       val |= MX93_GPR_ENET_QOS_CLK_GEN_EN;
+       return regmap_update_bits(dwmac->intf_regmap, dwmac->intf_reg_off,
+                                 MX93_GPR_ENET_QOS_INTF_MODE_MASK, val);
+};
+
 static int imx_dwmac_clks_config(void *priv, bool enabled)
 {
        struct imx_priv_data *dwmac = priv;
@@ -188,7 +223,9 @@ imx_dwmac_parse_dt(struct imx_priv_data *dwmac, struct device *dev)
        }
 
        dwmac->clk_mem = NULL;
-       if (of_machine_is_compatible("fsl,imx8dxl")) {
+
+       if (of_machine_is_compatible("fsl,imx8dxl") ||
+           of_machine_is_compatible("fsl,imx93")) {
                dwmac->clk_mem = devm_clk_get(dev, "mem");
                if (IS_ERR(dwmac->clk_mem)) {
                        dev_err(dev, "failed to get mem clock\n");
@@ -196,10 +233,11 @@ imx_dwmac_parse_dt(struct imx_priv_data *dwmac, struct device *dev)
                }
        }
 
-       if (of_machine_is_compatible("fsl,imx8mp")) {
-               /* Binding doc describes the property:
-                  is required by i.MX8MP.
-                  is optional for i.MX8DXL.
+       if (of_machine_is_compatible("fsl,imx8mp") ||
+           of_machine_is_compatible("fsl,imx93")) {
+               /* Binding doc describes the propety:
+                * is required by i.MX8MP, i.MX93.
+                * is optinoal for i.MX8DXL.
                 */
                dwmac->intf_regmap = syscon_regmap_lookup_by_phandle(np, "intf_mode");
                if (IS_ERR(dwmac->intf_regmap))
@@ -296,9 +334,16 @@ static struct imx_dwmac_ops imx8dxl_dwmac_data = {
        .set_intf_mode = imx8dxl_set_intf_mode,
 };
 
+static struct imx_dwmac_ops imx93_dwmac_data = {
+       .addr_width = 32,
+       .mac_rgmii_txclk_auto_adj = true,
+       .set_intf_mode = imx93_set_intf_mode,
+};
+
 static const struct of_device_id imx_dwmac_match[] = {
        { .compatible = "nxp,imx8mp-dwmac-eqos", .data = &imx8mp_dwmac_data },
        { .compatible = "nxp,imx8dxl-dwmac-eqos", .data = &imx8dxl_dwmac_data },
+       { .compatible = "nxp,imx93-dwmac-eqos", .data = &imx93_dwmac_data },
        { }
 };
 MODULE_DEVICE_TABLE(of, imx_dwmac_match);