[PATCH v3 0/3] Add GMAC support for rk3576

[PATCH v3 0/3] Add GMAC support for rk3576

[Detlev Casanova]

Add the necessary constants and functions to support the GMAC devices on
the rk3576.

Changes since v2:
- Fix typos in RK3576_GMAC_CLK_SELET_*
- Also fix typo for RK3588_GMAC_CLK_SELET_*

Changes since v1:
- Add binding in net/snps,dwmac.yaml too

Detlev.

David Wu (1):
  ethernet: stmmac: dwmac-rk: Add GMAC support for RK3576

Detlev Casanova (2):
  ethernet: stmmac: dwmac-rk: Fix typo for RK3588 code
  dt-bindings: net: Add support for rk3576 dwmac

 .../bindings/net/rockchip-dwmac.yaml          |   2 +
 .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
 .../net/ethernet/stmicro/stmmac/dwmac-rk.c    | 164 +++++++++++++++++-
 3 files changed, 163 insertions(+), 4 deletions(-)

-- 
2.46.0

[PATCH v3 1/3] ethernet: stmmac: dwmac-rk: Fix typo for RK3588 code

[Detlev Casanova]

Fix SELET -> SELECT in RK3588_GMAC_CLK_SELET_CRU and
RK3588_GMAC_CLK_SELET_IO

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 7ae04d8d291c8..9cf0aa58d13bf 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1141,8 +1141,8 @@ static const struct rk_gmac_ops rk3568_ops = {
 #define RK3588_GMAC_CLK_RMII_MODE(id)		GRF_BIT(5 * (id))
 #define RK3588_GMAC_CLK_RGMII_MODE(id)		GRF_CLR_BIT(5 * (id))
 
-#define RK3588_GMAC_CLK_SELET_CRU(id)		GRF_BIT(5 * (id) + 4)
-#define RK3588_GMAC_CLK_SELET_IO(id)		GRF_CLR_BIT(5 * (id) + 4)
+#define RK3588_GMAC_CLK_SELECT_CRU(id)		GRF_BIT(5 * (id) + 4)
+#define RK3588_GMAC_CLK_SELECT_IO(id)		GRF_CLR_BIT(5 * (id) + 4)
 
 #define RK3588_GMA_CLK_RMII_DIV2(id)		GRF_BIT(5 * (id) + 2)
 #define RK3588_GMA_CLK_RMII_DIV20(id)		GRF_CLR_BIT(5 * (id) + 2)
@@ -1240,8 +1240,8 @@ static void rk3588_set_gmac_speed(struct rk_priv_data *bsp_priv, int speed)
 static void rk3588_set_clock_selection(struct rk_priv_data *bsp_priv, bool input,
 				       bool enable)
 {
-	unsigned int val = input ? RK3588_GMAC_CLK_SELET_IO(bsp_priv->id) :
-				   RK3588_GMAC_CLK_SELET_CRU(bsp_priv->id);
+	unsigned int val = input ? RK3588_GMAC_CLK_SELECT_IO(bsp_priv->id) :
+				   RK3588_GMAC_CLK_SELECT_CRU(bsp_priv->id);
 
 	val |= enable ? RK3588_GMAC_CLK_RMII_NOGATE(bsp_priv->id) :
 			RK3588_GMAC_CLK_RMII_GATE(bsp_priv->id);
-- 
2.46.0

[PATCH v3 2/3] dt-bindings: net: Add support for rk3576 dwmac

[Detlev Casanova]

Add a rockchip,rk3576-gmac compatible for supporting the 2 gmac
devices on the rk3576.

Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
---
 Documentation/devicetree/bindings/net/rockchip-dwmac.yaml | 2 ++
 Documentation/devicetree/bindings/net/snps,dwmac.yaml     | 1 +
 2 files changed, 3 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index 6bbe96e352509..f8a576611d6c1 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -25,6 +25,7 @@ select:
           - rockchip,rk3368-gmac
           - rockchip,rk3399-gmac
           - rockchip,rk3568-gmac
+          - rockchip,rk3576-gmac
           - rockchip,rk3588-gmac
           - rockchip,rv1108-gmac
           - rockchip,rv1126-gmac
@@ -52,6 +53,7 @@ properties:
       - items:
           - enum:
               - rockchip,rk3568-gmac
+              - rockchip,rk3576-gmac
               - rockchip,rk3588-gmac
               - rockchip,rv1126-gmac
           - const: snps,dwmac-4.20a
diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
index 3eb65e63fdaec..4e2ba1bf788c9 100644
--- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
@@ -80,6 +80,7 @@ properties:
         - rockchip,rk3328-gmac
         - rockchip,rk3366-gmac
         - rockchip,rk3368-gmac
+        - rockchip,rk3576-gmac
         - rockchip,rk3588-gmac
         - rockchip,rk3399-gmac
         - rockchip,rv1108-gmac
-- 
2.46.0

[PATCH v3 3/3] ethernet: stmmac: dwmac-rk: Add GMAC support for RK3576

[Detlev Casanova]

From: David Wu <david.wu@rock-chips.com>

Add constants and callback functions for the dwmac on RK3576 soc.

Signed-off-by: David Wu <david.wu@rock-chips.com>
[rebase, extracted bindings]
Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---
 .../net/ethernet/stmicro/stmmac/dwmac-rk.c    | 156 ++++++++++++++++++
 1 file changed, 156 insertions(+)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 9cf0aa58d13bf..50073bdade46e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -1116,6 +1116,161 @@ static const struct rk_gmac_ops rk3568_ops = {
 	},
 };
 
+/* VCCIO0_1_3_IOC */
+#define RK3576_VCCIO0_1_3_IOC_CON2		0X6408
+#define RK3576_VCCIO0_1_3_IOC_CON3		0X640c
+#define RK3576_VCCIO0_1_3_IOC_CON4		0X6410
+#define RK3576_VCCIO0_1_3_IOC_CON5		0X6414
+
+#define RK3576_GMAC_RXCLK_DLY_ENABLE		GRF_BIT(15)
+#define RK3576_GMAC_RXCLK_DLY_DISABLE		GRF_CLR_BIT(15)
+#define RK3576_GMAC_TXCLK_DLY_ENABLE		GRF_BIT(7)
+#define RK3576_GMAC_TXCLK_DLY_DISABLE		GRF_CLR_BIT(7)
+
+#define RK3576_GMAC_CLK_RX_DL_CFG(val)		HIWORD_UPDATE(val, 0x7F, 8)
+#define RK3576_GMAC_CLK_TX_DL_CFG(val)		HIWORD_UPDATE(val, 0x7F, 0)
+
+/* SDGMAC_GRF */
+#define RK3576_GRF_GMAC_CON0			0X0020
+#define RK3576_GRF_GMAC_CON1			0X0024
+
+#define RK3576_GMAC_RMII_MODE			GRF_BIT(3)
+#define RK3576_GMAC_RGMII_MODE			GRF_CLR_BIT(3)
+
+#define RK3576_GMAC_CLK_SELECT_IO		GRF_BIT(7)
+#define RK3576_GMAC_CLK_SELECT_CRU		GRF_CLR_BIT(7)
+
+#define RK3576_GMAC_CLK_RMII_DIV2		GRF_BIT(5)
+#define RK3576_GMAC_CLK_RMII_DIV20		GRF_CLR_BIT(5)
+
+#define RK3576_GMAC_CLK_RGMII_DIV1		\
+			(GRF_CLR_BIT(6) | GRF_CLR_BIT(5))
+#define RK3576_GMAC_CLK_RGMII_DIV5		\
+			(GRF_BIT(6) | GRF_BIT(5))
+#define RK3576_GMAC_CLK_RGMII_DIV50		\
+			(GRF_BIT(6) | GRF_CLR_BIT(5))
+
+#define RK3576_GMAC_CLK_RMII_GATE		GRF_BIT(4)
+#define RK3576_GMAC_CLK_RMII_NOGATE		GRF_CLR_BIT(4)
+
+static void rk3576_set_to_rgmii(struct rk_priv_data *bsp_priv,
+				int tx_delay, int rx_delay)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+	unsigned int offset_con;
+
+	if (IS_ERR(bsp_priv->grf) || IS_ERR(bsp_priv->php_grf)) {
+		dev_err(dev, "Missing rockchip,grf or rockchip,php-grf property\n");
+		return;
+	}
+
+	offset_con = bsp_priv->id == 1 ? RK3576_GRF_GMAC_CON1 :
+					 RK3576_GRF_GMAC_CON0;
+
+	regmap_write(bsp_priv->grf, offset_con, RK3576_GMAC_RGMII_MODE);
+
+	offset_con = bsp_priv->id == 1 ? RK3576_VCCIO0_1_3_IOC_CON4 :
+					 RK3576_VCCIO0_1_3_IOC_CON2;
+
+	/* m0 && m1 delay enabled */
+	regmap_write(bsp_priv->php_grf, offset_con,
+		     DELAY_ENABLE(RK3576, tx_delay, rx_delay));
+	regmap_write(bsp_priv->php_grf, offset_con + 0x4,
+		     DELAY_ENABLE(RK3576, tx_delay, rx_delay));
+
+	/* m0 && m1 delay value */
+	regmap_write(bsp_priv->php_grf, offset_con,
+		     RK3576_GMAC_CLK_TX_DL_CFG(tx_delay) |
+		     RK3576_GMAC_CLK_RX_DL_CFG(rx_delay));
+	regmap_write(bsp_priv->php_grf, offset_con + 0x4,
+		     RK3576_GMAC_CLK_TX_DL_CFG(tx_delay) |
+		     RK3576_GMAC_CLK_RX_DL_CFG(rx_delay));
+}
+
+static void rk3576_set_to_rmii(struct rk_priv_data *bsp_priv)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+	unsigned int offset_con;
+
+	if (IS_ERR(bsp_priv->grf)) {
+		dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+		return;
+	}
+
+	offset_con = bsp_priv->id == 1 ? RK3576_GRF_GMAC_CON1 :
+					 RK3576_GRF_GMAC_CON0;
+
+	regmap_write(bsp_priv->grf, offset_con, RK3576_GMAC_RMII_MODE);
+}
+
+static void rk3576_set_gmac_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+	struct device *dev = &bsp_priv->pdev->dev;
+	unsigned int val = 0, offset_con;
+
+	switch (speed) {
+	case 10:
+		if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RMII)
+			val = RK3576_GMAC_CLK_RMII_DIV20;
+		else
+			val = RK3576_GMAC_CLK_RGMII_DIV50;
+		break;
+	case 100:
+		if (bsp_priv->phy_iface == PHY_INTERFACE_MODE_RMII)
+			val = RK3576_GMAC_CLK_RMII_DIV2;
+		else
+			val = RK3576_GMAC_CLK_RGMII_DIV5;
+		break;
+	case 1000:
+		if (bsp_priv->phy_iface != PHY_INTERFACE_MODE_RMII)
+			val = RK3576_GMAC_CLK_RGMII_DIV1;
+		else
+			goto err;
+		break;
+	default:
+		goto err;
+	}
+
+	offset_con = bsp_priv->id == 1 ? RK3576_GRF_GMAC_CON1 :
+					 RK3576_GRF_GMAC_CON0;
+
+	regmap_write(bsp_priv->grf, offset_con, val);
+
+	return;
+err:
+	dev_err(dev, "unknown speed value for GMAC speed=%d", speed);
+}
+
+static void rk3576_set_clock_selection(struct rk_priv_data *bsp_priv, bool input,
+				       bool enable)
+{
+	unsigned int val = input ? RK3576_GMAC_CLK_SELECT_IO :
+				   RK3576_GMAC_CLK_SELECT_CRU;
+	unsigned int offset_con;
+
+	val |= enable ? RK3576_GMAC_CLK_RMII_NOGATE :
+			RK3576_GMAC_CLK_RMII_GATE;
+
+	offset_con = bsp_priv->id == 1 ? RK3576_GRF_GMAC_CON1 :
+					 RK3576_GRF_GMAC_CON0;
+
+	regmap_write(bsp_priv->grf, offset_con, val);
+}
+
+static const struct rk_gmac_ops rk3576_ops = {
+	.set_to_rgmii = rk3576_set_to_rgmii,
+	.set_to_rmii = rk3576_set_to_rmii,
+	.set_rgmii_speed = rk3576_set_gmac_speed,
+	.set_rmii_speed = rk3576_set_gmac_speed,
+	.set_clock_selection = rk3576_set_clock_selection,
+	.regs_valid = true,
+	.regs = {
+		0x2a220000, /* gmac0 */
+		0x2a230000, /* gmac1 */
+		0x0, /* sentinel */
+	},
+};
+
 /* sys_grf */
 #define RK3588_GRF_GMAC_CON7			0X031c
 #define RK3588_GRF_GMAC_CON8			0X0320
@@ -1908,6 +2063,7 @@ static const struct of_device_id rk_gmac_dwmac_match[] = {
 	{ .compatible = "rockchip,rk3368-gmac", .data = &rk3368_ops },
 	{ .compatible = "rockchip,rk3399-gmac", .data = &rk3399_ops },
 	{ .compatible = "rockchip,rk3568-gmac", .data = &rk3568_ops },
+	{ .compatible = "rockchip,rk3576-gmac", .data = &rk3576_ops },
 	{ .compatible = "rockchip,rk3588-gmac", .data = &rk3588_ops },
 	{ .compatible = "rockchip,rv1108-gmac", .data = &rv1108_ops },
 	{ .compatible = "rockchip,rv1126-gmac", .data = &rv1126_ops },
-- 
2.46.0

Re: [PATCH v3 1/3] ethernet: stmmac: dwmac-rk: Fix typo for RK3588 code

[Heiko Stübner]

Am Freitag, 23. August 2024, 16:11:13 CEST schrieb Detlev Casanova:
> Fix SELET -> SELECT in RK3588_GMAC_CLK_SELET_CRU and
> RK3588_GMAC_CLK_SELET_IO
> 
> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>

Reviewed-by: Heiko Stuebner <heiko@sntech.de>

> ---
>  drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
> index 7ae04d8d291c8..9cf0aa58d13bf 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
> @@ -1141,8 +1141,8 @@ static const struct rk_gmac_ops rk3568_ops = {
>  #define RK3588_GMAC_CLK_RMII_MODE(id)		GRF_BIT(5 * (id))
>  #define RK3588_GMAC_CLK_RGMII_MODE(id)		GRF_CLR_BIT(5 * (id))
>  
> -#define RK3588_GMAC_CLK_SELET_CRU(id)		GRF_BIT(5 * (id) + 4)
> -#define RK3588_GMAC_CLK_SELET_IO(id)		GRF_CLR_BIT(5 * (id) + 4)
> +#define RK3588_GMAC_CLK_SELECT_CRU(id)		GRF_BIT(5 * (id) + 4)
> +#define RK3588_GMAC_CLK_SELECT_IO(id)		GRF_CLR_BIT(5 * (id) + 4)
>  
>  #define RK3588_GMA_CLK_RMII_DIV2(id)		GRF_BIT(5 * (id) + 2)
>  #define RK3588_GMA_CLK_RMII_DIV20(id)		GRF_CLR_BIT(5 * (id) + 2)
> @@ -1240,8 +1240,8 @@ static void rk3588_set_gmac_speed(struct rk_priv_data *bsp_priv, int speed)
>  static void rk3588_set_clock_selection(struct rk_priv_data *bsp_priv, bool input,
>  				       bool enable)
>  {
> -	unsigned int val = input ? RK3588_GMAC_CLK_SELET_IO(bsp_priv->id) :
> -				   RK3588_GMAC_CLK_SELET_CRU(bsp_priv->id);
> +	unsigned int val = input ? RK3588_GMAC_CLK_SELECT_IO(bsp_priv->id) :
> +				   RK3588_GMAC_CLK_SELECT_CRU(bsp_priv->id);
>  
>  	val |= enable ? RK3588_GMAC_CLK_RMII_NOGATE(bsp_priv->id) :
>  			RK3588_GMAC_CLK_RMII_GATE(bsp_priv->id);
> 

Re: [PATCH v3 2/3] dt-bindings: net: Add support for rk3576 dwmac

[Heiko Stübner]

Am Freitag, 23. August 2024, 16:11:14 CEST schrieb Detlev Casanova:
> Add a rockchip,rk3576-gmac compatible for supporting the 2 gmac
> devices on the rk3576.
> 
> Signed-off-by: Detlev Casanova <detlev.casanova@collabora.com>
> Acked-by: Rob Herring (Arm) <robh@kernel.org>
> ---

Reviewed-by: Heiko Stuebner <heiko@sntech.de>

>  Documentation/devicetree/bindings/net/rockchip-dwmac.yaml | 2 ++
>  Documentation/devicetree/bindings/net/snps,dwmac.yaml     | 1 +
>  2 files changed, 3 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> index 6bbe96e352509..f8a576611d6c1 100644
> --- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
> @@ -25,6 +25,7 @@ select:
>            - rockchip,rk3368-gmac
>            - rockchip,rk3399-gmac
>            - rockchip,rk3568-gmac
> +          - rockchip,rk3576-gmac
>            - rockchip,rk3588-gmac
>            - rockchip,rv1108-gmac
>            - rockchip,rv1126-gmac
> @@ -52,6 +53,7 @@ properties:
>        - items:
>            - enum:
>                - rockchip,rk3568-gmac
> +              - rockchip,rk3576-gmac
>                - rockchip,rk3588-gmac
>                - rockchip,rv1126-gmac
>            - const: snps,dwmac-4.20a
> diff --git a/Documentation/devicetree/bindings/net/snps,dwmac.yaml b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> index 3eb65e63fdaec..4e2ba1bf788c9 100644
> --- a/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> +++ b/Documentation/devicetree/bindings/net/snps,dwmac.yaml
> @@ -80,6 +80,7 @@ properties:
>          - rockchip,rk3328-gmac
>          - rockchip,rk3366-gmac
>          - rockchip,rk3368-gmac
> +        - rockchip,rk3576-gmac
>          - rockchip,rk3588-gmac
>          - rockchip,rk3399-gmac
>          - rockchip,rv1108-gmac
> 

Re: [PATCH v3 3/3] ethernet: stmmac: dwmac-rk: Add GMAC support for RK3576

[Jakub Kicinski]

On Fri, 23 Aug 2024 10:11:15 -0400 Detlev Casanova wrote:
> +static void rk3576_set_to_rgmii(struct rk_priv_data *bsp_priv,
> +				int tx_delay, int rx_delay)
> +{
> +	struct device *dev = &bsp_priv->pdev->dev;
> +	unsigned int offset_con;
> +
> +	if (IS_ERR(bsp_priv->grf) || IS_ERR(bsp_priv->php_grf)) {
> +		dev_err(dev, "Missing rockchip,grf or rockchip,php-grf property\n");
> +		return;
> +	}

Seems like there's plenty of precedent in this file, but seems a little
strange that we just print a message and carry on, without returning an
error.

Would be better to return an error or add some info to the ops
struct, so that the caller can check if the correct (of the two)
regmaps are set

Re: [PATCH v3 0/3] Add GMAC support for rk3576

[patchwork-bot+netdevbpf]

Hello:

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

On Fri, 23 Aug 2024 10:11:12 -0400 you wrote:
> Add the necessary constants and functions to support the GMAC devices on
> the rk3576.
> 
> Changes since v2:
> - Fix typos in RK3576_GMAC_CLK_SELET_*
> - Also fix typo for RK3588_GMAC_CLK_SELET_*
> 
> [...]

Here is the summary with links:
  - [v3,1/3] ethernet: stmmac: dwmac-rk: Fix typo for RK3588 code
    https://git.kernel.org/netdev/net-next/c/78a60497a020
  - [v3,2/3] dt-bindings: net: Add support for rk3576 dwmac
    https://git.kernel.org/netdev/net-next/c/299e2aefb159
  - [v3,3/3] ethernet: stmmac: dwmac-rk: Add GMAC support for RK3576
    https://git.kernel.org/netdev/net-next/c/f9cc9997cba9

You are awesome, thank you!
-- 
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