[PATCH net-next v3 1/2] dt-bindings: net: rockchip-dwmac: add rv1126 compatible

[PATCH net-next v3 1/2] dt-bindings: net: rockchip-dwmac: add rv1126 compatible

[Anand Moon]

Add compatible string for RV1126 gmac, and constrain it to
be compatible with Synopsys dwmac 4.20a.

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
Signed-off-by: Anand Moon <anand@edgeble.ai>
---
v3: added reviewed by Krzysztof Kozlowski
    rebased on linux-net-next
v2: add missing compatible string to property
    added reviewed by Heiko Stuebner.
---
---
 Documentation/devicetree/bindings/net/rockchip-dwmac.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index 3c8c3a907181..42fb72b6909d 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -27,6 +27,7 @@ select:
           - rockchip,rk3568-gmac
           - rockchip,rk3588-gmac
           - rockchip,rv1108-gmac
+          - rockchip,rv1126-gmac
   required:
     - compatible
 
@@ -48,6 +49,7 @@ properties:
               - rockchip,rk3368-gmac
               - rockchip,rk3399-gmac
               - rockchip,rv1108-gmac
+              - rockchip,rv1126-gmac
       - items:
           - enum:
               - rockchip,rk3568-gmac
-- 
2.37.3

[PATCH net-next v3 2/2] net: ethernet: stmicro: stmmac: dwmac-rk: Add rv1126 support

[Anand Moon]

Rockchip RV1126 has GMAC 10/100/1000M ethernet controller
via RGMII and RMII interfaces are configured via M0 and M1 pinmux.

This patch adds rv1126 support by adding delay lines of M0 and M1
simultaneously.

Signed-off-by: Sugar Zhang <sugar.zhang@rock-chips.com>
Signed-off-by: David Wu <david.wu@rock-chips.com>
Signed-off-by: Anand Moon <anand@edgeble.ai>
Signed-off-by: Jagan Teki <jagan@edgeble.ai>
---
v3: changes none
    rebased on linux-net-next
v2: changes none
---
---
 .../net/ethernet/stmicro/stmmac/dwmac-rk.c    | 125 ++++++++++++++++++
 1 file changed, 125 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 15dea1f2a90a..f7269d79a385 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1297,6 +1297,130 @@ static const struct rk_gmac_ops rv1108_ops = {
 	.set_rmii_speed = rv1108_set_rmii_speed,
 };
 
+#define RV1126_GRF_GMAC_CON0		0X0070
+#define RV1126_GRF_GMAC_CON1		0X0074
+#define RV1126_GRF_GMAC_CON2		0X0078
+
+/* RV1126_GRF_GMAC_CON0 */
+#define RV1126_GMAC_PHY_INTF_SEL_RGMII	\
+		(GRF_BIT(4) | GRF_CLR_BIT(5) | GRF_CLR_BIT(6))
+#define RV1126_GMAC_PHY_INTF_SEL_RMII	\
+		(GRF_CLR_BIT(4) | GRF_CLR_BIT(5) | GRF_BIT(6))
+#define RV1126_GMAC_FLOW_CTRL			GRF_BIT(7)
+#define RV1126_GMAC_FLOW_CTRL_CLR		GRF_CLR_BIT(7)
+#define RV1126_GMAC_M0_RXCLK_DLY_ENABLE		GRF_BIT(1)
+#define RV1126_GMAC_M0_RXCLK_DLY_DISABLE	GRF_CLR_BIT(1)
+#define RV1126_GMAC_M0_TXCLK_DLY_ENABLE		GRF_BIT(0)
+#define RV1126_GMAC_M0_TXCLK_DLY_DISABLE	GRF_CLR_BIT(0)
+#define RV1126_GMAC_M1_RXCLK_DLY_ENABLE		GRF_BIT(3)
+#define RV1126_GMAC_M1_RXCLK_DLY_DISABLE	GRF_CLR_BIT(3)
+#define RV1126_GMAC_M1_TXCLK_DLY_ENABLE		GRF_BIT(2)
+#define RV1126_GMAC_M1_TXCLK_DLY_DISABLE	GRF_CLR_BIT(2)
+
+/* RV1126_GRF_GMAC_CON1 */
+#define RV1126_GMAC_M0_CLK_RX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 8)
+#define RV1126_GMAC_M0_CLK_TX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 0)
+/* RV1126_GRF_GMAC_CON2 */
+#define RV1126_GMAC_M1_CLK_RX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 8)
+#define RV1126_GMAC_M1_CLK_TX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 0)
+
+static void rv1126_set_to_rgmii(struct rk_priv_data *bsp_priv,
+				int tx_delay, int rx_delay)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "Missing rockchip,grf property\n");
+		return;
+	}
+
+	regmap_write(bsp_priv->grf, RV1126_GRF_GMAC_CON0,
+		     RV1126_GMAC_PHY_INTF_SEL_RGMII |
+		     RV1126_GMAC_M0_RXCLK_DLY_ENABLE |
+		     RV1126_GMAC_M0_TXCLK_DLY_ENABLE |
+		     RV1126_GMAC_M1_RXCLK_DLY_ENABLE |
+		     RV1126_GMAC_M1_TXCLK_DLY_ENABLE);
+
+	regmap_write(bsp_priv->grf, RV1126_GRF_GMAC_CON1,
+		     RV1126_GMAC_M0_CLK_RX_DL_CFG(rx_delay) |
+		     RV1126_GMAC_M0_CLK_TX_DL_CFG(tx_delay));
+
+	regmap_write(bsp_priv->grf, RV1126_GRF_GMAC_CON2,
+		     RV1126_GMAC_M1_CLK_RX_DL_CFG(rx_delay) |
+		     RV1126_GMAC_M1_CLK_TX_DL_CFG(tx_delay));
+}
+
+static void rv1126_set_to_rmii(struct rk_priv_data *bsp_priv)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+		return;
+	}
+
+	regmap_write(bsp_priv->grf, RV1126_GRF_GMAC_CON0,
+		     RV1126_GMAC_PHY_INTF_SEL_RMII);
+}
+
+static void rv1126_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+	unsigned long rate;
+	int ret;
+
+	switch (speed) {
+	case 10:
+		rate = 2500000;
+		break;
+	case 100:
+		rate = 25000000;
+		break;
+	case 1000:
+		rate = 125000000;
+		break;
+	default:
+		dev_err(dev, "unknown speed value for RGMII speed=%d", speed);
+		return;
+	}
+
+	ret = clk_set_rate(bsp_priv->clk_mac_speed, rate);
+	if (ret)
+		dev_err(dev, "%s: set clk_mac_speed rate %ld failed %d\n",
+			__func__, rate, ret);
+}
+
+static void rv1126_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+	unsigned long rate;
+	int ret;
+
+	switch (speed) {
+	case 10:
+		rate = 2500000;
+		break;
+	case 100:
+		rate = 25000000;
+		break;
+	default:
+		dev_err(dev, "unknown speed value for RGMII speed=%d", speed);
+		return;
+	}
+
+	ret = clk_set_rate(bsp_priv->clk_mac_speed, rate);
+	if (ret)
+		dev_err(dev, "%s: set clk_mac_speed rate %ld failed %d\n",
+			__func__, rate, ret);
+}
+
+static const struct rk_gmac_ops rv1126_ops = {
+	.set_to_rgmii = rv1126_set_to_rgmii,
+	.set_to_rmii = rv1126_set_to_rmii,
+	.set_rgmii_speed = rv1126_set_rgmii_speed,
+	.set_rmii_speed = rv1126_set_rmii_speed,
+};
+
 #define RK_GRF_MACPHY_CON0		0xb00
 #define RK_GRF_MACPHY_CON1		0xb04
 #define RK_GRF_MACPHY_CON2		0xb08
@@ -1836,6 +1960,7 @@ static const struct of_device_id rk_gmac_dwmac_match[] = {
 	{ .compatible = "rockchip,rk3568-gmac", .data = &rk3568_ops },
 	{ .compatible = "rockchip,rk3588-gmac", .data = &rk3588_ops },
 	{ .compatible = "rockchip,rv1108-gmac", .data = &rv1108_ops },
+	{ .compatible = "rockchip,rv1126-gmac", .data = &rv1126_ops },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);
-- 
2.37.3

Re: [PATCH net-next v3 1/2] dt-bindings: net: rockchip-dwmac: add rv1126 compatible

[patchwork-bot+netdevbpf]

Hello:

This series was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@kernel.org>:

On Tue, 20 Sep 2022 14:09:40 +0000 you wrote:
> Add compatible string for RV1126 gmac, and constrain it to
> be compatible with Synopsys dwmac 4.20a.
> 
> Reviewed-by: Heiko Stuebner <heiko@sntech.de>
> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Signed-off-by: Jagan Teki <jagan@edgeble.ai>
> Signed-off-by: Anand Moon <anand@edgeble.ai>
> 
> [...]

Here is the summary with links:
  - [net-next,v3,1/2] dt-bindings: net: rockchip-dwmac: add rv1126 compatible
    https://git.kernel.org/netdev/net-next/c/b36fe2f43662
  - [net-next,v3,2/2] net: ethernet: stmicro: stmmac: dwmac-rk: Add rv1126 support
    https://git.kernel.org/netdev/net-next/c/c931b060f093

You are awesome, thank you!
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