[PATCH 0/3] Add imx93 support for dwmac-imx

[PATCH 0/3] Add imx93 support for dwmac-imx

[Clark Wang]

Hi,

This patchset add imx93 support for dwmac-imx glue driver.
There are some changes of GPR implement 

Clark Wang (3):
  net: stmmac: add imx93 platform support
  dt-bindings: add mx93 description
  arm64: dts: imx93: add fec and eqos support

 .../bindings/net/nxp,dwmac-imx.yaml           |  4 +-
 .../boot/dts/freescale/imx93-11x11-evk.dts    | 40 ++++++++++++++
 arch/arm64/boot/dts/freescale/imx93.dtsi      | 22 ++++++++
 .../net/ethernet/stmicro/stmmac/dwmac-imx.c   | 55 +++++++++++++++++--
 4 files changed, 115 insertions(+), 6 deletions(-)

-- 
2.34.1

[PATCH 1/3] net: stmmac: add imx93 platform support

[Clark Wang]

Add imx93 platform support for dwmac-imx driver.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
 .../net/ethernet/stmicro/stmmac/dwmac-imx.c   | 55 +++++++++++++++++--
 1 file changed, 50 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-imx.c
index bd52fb7cf486..b670f07ea2a9 100644
--- 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:
+		pr_debug("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);
-- 
2.34.1

Re: [PATCH 1/3] net: stmmac: add imx93 platform support

[Andrew Lunn]

> +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:
> +		pr_debug("imx dwmac doesn't support %d interface\n",
> +			 plat_dat->interface);

netdev_debug(), or dev_debug(), so there is some clue which of the 42
dwmac instances has a bad value in DT.

[PATCH 2/3] dt-bindings: add mx93 description

[Clark Wang]

Add mx93 compatible string for eqos driver.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
 Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
index 4c155441acbf..29b0d119405f 100644
--- a/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
+++ b/Documentation/devicetree/bindings/net/nxp,dwmac-imx.yaml
@@ -4,7 +4,7 @@
 $id: http://devicetree.org/schemas/net/nxp,dwmac-imx.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: NXP i.MX8 DWMAC glue layer
+title: NXP i.MX8/9 DWMAC glue layer
 
 maintainers:
   - Joakim Zhang <qiangqing.zhang@nxp.com>
@@ -17,6 +17,7 @@ select:
         enum:
           - nxp,imx8mp-dwmac-eqos
           - nxp,imx8dxl-dwmac-eqos
+          - nxp,imx93-dwmac-eqos
   required:
     - compatible
 
@@ -30,6 +31,7 @@ properties:
           - enum:
               - nxp,imx8mp-dwmac-eqos
               - nxp,imx8dxl-dwmac-eqos
+              - nxp,imx93-dwmac-eqos
           - const: snps,dwmac-5.10a
 
   clocks:
-- 
2.34.1

Re: [PATCH 2/3] dt-bindings: add mx93 description

[Krzysztof Kozlowski]

On 12/10/2022 06:51, Clark Wang wrote:
> Add mx93 compatible string for eqos driver.
> 
> Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
> ---


Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

[PATCH 3/3] arm64: dts: imx93: add fec and eqos support

[Clark Wang]

Enable EQoS functions for imx93 platform.

Signed-off-by: Clark Wang <xiaoning.wang@nxp.com>
---
 .../boot/dts/freescale/imx93-11x11-evk.dts    | 40 +++++++++++++++++++
 arch/arm64/boot/dts/freescale/imx93.dtsi      | 22 ++++++++++
 2 files changed, 62 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
index 69786c326db0..837f8b47ee4f 100644
--- a/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
+++ b/arch/arm64/boot/dts/freescale/imx93-11x11-evk.dts
@@ -35,6 +35,27 @@ &mu2 {
 	status = "okay";
 };
 
+&eqos {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_eqos>;
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethphy1>;
+	status = "okay";
+
+	mdio {
+		compatible = "snps,dwmac-mdio";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clock-frequency = <5000000>;
+
+		ethphy1: ethernet-phy@1 {
+			compatible = "ethernet-phy-ieee802.3-c22";
+			reg = <1>;
+			eee-broken-1000t;
+		};
+	};
+};
+
 &lpuart1 { /* console */
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
@@ -65,6 +86,25 @@ &usdhc2 {
 };
 
 &iomuxc {
+	pinctrl_eqos: eqosgrp {
+		fsl,pins = <
+			MX93_PAD_ENET1_MDC__ENET_QOS_MDC			0x57e
+			MX93_PAD_ENET1_MDIO__ENET_QOS_MDIO			0x57e
+			MX93_PAD_ENET1_RD0__ENET_QOS_RGMII_RD0			0x57e
+			MX93_PAD_ENET1_RD1__ENET_QOS_RGMII_RD1			0x57e
+			MX93_PAD_ENET1_RD2__ENET_QOS_RGMII_RD2			0x57e
+			MX93_PAD_ENET1_RD3__ENET_QOS_RGMII_RD3			0x57e
+			MX93_PAD_ENET1_RXC__CCM_ENET_QOS_CLOCK_GENERATE_RX_CLK	0x5fe
+			MX93_PAD_ENET1_RX_CTL__ENET_QOS_RGMII_RX_CTL		0x57e
+			MX93_PAD_ENET1_TD0__ENET_QOS_RGMII_TD0			0x57e
+			MX93_PAD_ENET1_TD1__ENET_QOS_RGMII_TD1			0x57e
+			MX93_PAD_ENET1_TD2__ENET_QOS_RGMII_TD2			0x57e
+			MX93_PAD_ENET1_TD3__ENET_QOS_RGMII_TD3			0x57e
+			MX93_PAD_ENET1_TXC__CCM_ENET_QOS_CLOCK_GENERATE_TX_CLK	0x5fe
+			MX93_PAD_ENET1_TX_CTL__ENET_QOS_RGMII_TX_CTL		0x57e
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX93_PAD_UART1_RXD__LPUART1_RX			0x31e
diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 3a5713bb4880..8cb7d7d88086 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -425,6 +425,28 @@ usdhc2: mmc@42860000 {
 				status = "disabled";
 			};
 
+			eqos: ethernet@428a0000 {
+				compatible = "nxp,imx93-dwmac-eqos", "snps,dwmac-5.10a";
+				reg = <0x428a0000 0x10000>;
+				interrupts = <GIC_SPI 183 IRQ_TYPE_LEVEL_HIGH>,
+					     <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "eth_wake_irq", "macirq";
+				clocks = <&clk IMX93_CLK_ENET_QOS_GATE>,
+					 <&clk IMX93_CLK_ENET_QOS_GATE>,
+					 <&clk IMX93_CLK_ENET_TIMER2>,
+					 <&clk IMX93_CLK_ENET>,
+					 <&clk IMX93_CLK_ENET_QOS_GATE>;
+				clock-names = "stmmaceth", "pclk", "ptp_ref", "tx", "mem";
+				assigned-clocks = <&clk IMX93_CLK_ENET_TIMER2>,
+						  <&clk IMX93_CLK_ENET>;
+				assigned-clock-parents = <&clk IMX93_CLK_SYS_PLL_PFD1_DIV2>,
+							 <&clk IMX93_CLK_SYS_PLL_PFD0_DIV2>;
+				assigned-clock-rates = <100000000>, <250000000>;
+				intf_mode = <&wakeupmix_gpr 0x28>;
+				clk_csr = <0>;
+				status = "disabled";
+			};
+
 			usdhc3: mmc@428b0000 {
 				compatible = "fsl,imx93-usdhc", "fsl,imx8mm-usdhc";
 				reg = <0x428b0000 0x10000>;
-- 
2.34.1

Re: [PATCH 3/3] arm64: dts: imx93: add fec and eqos support

[Andrew Lunn]

> +	mdio {
> +		compatible = "snps,dwmac-mdio";
> +		#address-cells = <1>;
> +		#size-cells = <0>;
> +		clock-frequency = <5000000>;
> +
> +		ethphy1: ethernet-phy@1 {
> +			compatible = "ethernet-phy-ieee802.3-c22";

It is not wrong, but this is not needed, its the default.

   Andrew