net: stmmac: dwmac-rk: add rk3366 & rk3399 specific data

Add constants and callback functions for the dwmac on rk3228/rk3229 socs.
As can be seen, the base structure is the same, only registers and the
bits in them moved slightly.

Signed-off-by: Roger Chen <roger.chen@rock-chips.com>
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 232 insertions, 2 deletions

diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
index cccd945fc45b..95383c5131fc 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.txt
@@ -3,8 +3,12 @@ Rockchip SoC RK3288 10/100/1000 Ethernet driver(GMAC)
 The device node has following properties.
 
 Required properties:
- - compatible: Can be one of "rockchip,rk3228-gmac", "rockchip,rk3288-gmac",
-                             "rockchip,rk3368-gmac"
+ - compatible: should be "rockchip,<name>-gamc"
+   "rockchip,rk3228-gmac": found on RK322x SoCs
+   "rockchip,rk3288-gmac": found on RK3288 SoCs
+   "rockchip,rk3366-gmac": found on RK3366 SoCs
+   "rockchip,rk3368-gmac": found on RK3368 SoCs
+   "rockchip,rk3399-gmac": found on RK3399 SoCs
  - reg: addresses and length of the register sets for the device.
  - interrupts: Should contain the GMAC interrupts.
  - interrupt-names: Should contain the interrupt names "macirq".
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
index 92105916ef40..4e6a27088313 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c
@@ -301,6 +301,118 @@ static const struct rk_gmac_ops rk3288_ops = {
         .set_rmii_speed = rk3288_set_rmii_speed,
 };
 
+#define RK3366_GRF_SOC_CON6     0x0418
+#define RK3366_GRF_SOC_CON7     0x041c
+
+/* RK3366_GRF_SOC_CON6 */
+#define RK3366_GMAC_PHY_INTF_SEL_RGMII  (GRF_BIT(9) | GRF_CLR_BIT(10) | \
+                                         GRF_CLR_BIT(11))
+#define RK3366_GMAC_PHY_INTF_SEL_RMII   (GRF_CLR_BIT(9) | GRF_CLR_BIT(10) | \
+                                         GRF_BIT(11))
+#define RK3366_GMAC_FLOW_CTRL           GRF_BIT(8)
+#define RK3366_GMAC_FLOW_CTRL_CLR       GRF_CLR_BIT(8)
+#define RK3366_GMAC_SPEED_10M           GRF_CLR_BIT(7)
+#define RK3366_GMAC_SPEED_100M          GRF_BIT(7)
+#define RK3366_GMAC_RMII_CLK_25M        GRF_BIT(3)
+#define RK3366_GMAC_RMII_CLK_2_5M       GRF_CLR_BIT(3)
+#define RK3366_GMAC_CLK_125M            (GRF_CLR_BIT(4) | GRF_CLR_BIT(5))
+#define RK3366_GMAC_CLK_25M             (GRF_BIT(4) | GRF_BIT(5))
+#define RK3366_GMAC_CLK_2_5M            (GRF_CLR_BIT(4) | GRF_BIT(5))
+#define RK3366_GMAC_RMII_MODE           GRF_BIT(6)
+#define RK3366_GMAC_RMII_MODE_CLR       GRF_CLR_BIT(6)
+
+/* RK3366_GRF_SOC_CON7 */
+#define RK3366_GMAC_TXCLK_DLY_ENABLE    GRF_BIT(7)
+#define RK3366_GMAC_TXCLK_DLY_DISABLE   GRF_CLR_BIT(7)
+#define RK3366_GMAC_RXCLK_DLY_ENABLE    GRF_BIT(15)
+#define RK3366_GMAC_RXCLK_DLY_DISABLE   GRF_CLR_BIT(15)
+#define RK3366_GMAC_CLK_RX_DL_CFG(val)  HIWORD_UPDATE(val, 0x7F, 8)
+#define RK3366_GMAC_CLK_TX_DL_CFG(val)  HIWORD_UPDATE(val, 0x7F, 0)
+
+static void rk3366_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, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                     RK3366_GMAC_PHY_INTF_SEL_RGMII |
+                     RK3366_GMAC_RMII_MODE_CLR);
+        regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON7,
+                     RK3366_GMAC_RXCLK_DLY_ENABLE |
+                     RK3366_GMAC_TXCLK_DLY_ENABLE |
+                     RK3366_GMAC_CLK_RX_DL_CFG(rx_delay) |
+                     RK3366_GMAC_CLK_TX_DL_CFG(tx_delay));
+}
+
+static void rk3366_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, RK3366_GRF_SOC_CON6,
+                     RK3366_GMAC_PHY_INTF_SEL_RMII | RK3366_GMAC_RMII_MODE);
+}
+
+static void rk3366_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+        struct device *dev = &bsp_priv->pdev->dev;
+
+        if (IS_ERR(bsp_priv->grf)) {
+                dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        if (speed == 10)
+                regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                             RK3366_GMAC_CLK_2_5M);
+        else if (speed == 100)
+                regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                             RK3366_GMAC_CLK_25M);
+        else if (speed == 1000)
+                regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                             RK3366_GMAC_CLK_125M);
+        else
+                dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
+}
+
+static void rk3366_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+        struct device *dev = &bsp_priv->pdev->dev;
+
+        if (IS_ERR(bsp_priv->grf)) {
+                dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        if (speed == 10) {
+                regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                             RK3366_GMAC_RMII_CLK_2_5M |
+                             RK3366_GMAC_SPEED_10M);
+        } else if (speed == 100) {
+                regmap_write(bsp_priv->grf, RK3366_GRF_SOC_CON6,
+                             RK3366_GMAC_RMII_CLK_25M |
+                             RK3366_GMAC_SPEED_100M);
+        } else {
+                dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
+        }
+}
+
+static const struct rk_gmac_ops rk3366_ops = {
+        .set_to_rgmii = rk3366_set_to_rgmii,
+        .set_to_rmii = rk3366_set_to_rmii,
+        .set_rgmii_speed = rk3366_set_rgmii_speed,
+        .set_rmii_speed = rk3366_set_rmii_speed,
+};
+
 #define RK3368_GRF_SOC_CON15    0x043c
 #define RK3368_GRF_SOC_CON16    0x0440
 
@@ -413,6 +525,118 @@ static const struct rk_gmac_ops rk3368_ops = {
         .set_rmii_speed = rk3368_set_rmii_speed,
 };
 
+#define RK3399_GRF_SOC_CON5     0xc214
+#define RK3399_GRF_SOC_CON6     0xc218
+
+/* RK3399_GRF_SOC_CON5 */
+#define RK3399_GMAC_PHY_INTF_SEL_RGMII  (GRF_BIT(9) | GRF_CLR_BIT(10) | \
+                                         GRF_CLR_BIT(11))
+#define RK3399_GMAC_PHY_INTF_SEL_RMII   (GRF_CLR_BIT(9) | GRF_CLR_BIT(10) | \
+                                         GRF_BIT(11))
+#define RK3399_GMAC_FLOW_CTRL           GRF_BIT(8)
+#define RK3399_GMAC_FLOW_CTRL_CLR       GRF_CLR_BIT(8)
+#define RK3399_GMAC_SPEED_10M           GRF_CLR_BIT(7)
+#define RK3399_GMAC_SPEED_100M          GRF_BIT(7)
+#define RK3399_GMAC_RMII_CLK_25M        GRF_BIT(3)
+#define RK3399_GMAC_RMII_CLK_2_5M       GRF_CLR_BIT(3)
+#define RK3399_GMAC_CLK_125M            (GRF_CLR_BIT(4) | GRF_CLR_BIT(5))
+#define RK3399_GMAC_CLK_25M             (GRF_BIT(4) | GRF_BIT(5))
+#define RK3399_GMAC_CLK_2_5M            (GRF_CLR_BIT(4) | GRF_BIT(5))
+#define RK3399_GMAC_RMII_MODE           GRF_BIT(6)
+#define RK3399_GMAC_RMII_MODE_CLR       GRF_CLR_BIT(6)
+
+/* RK3399_GRF_SOC_CON6 */
+#define RK3399_GMAC_TXCLK_DLY_ENABLE    GRF_BIT(7)
+#define RK3399_GMAC_TXCLK_DLY_DISABLE   GRF_CLR_BIT(7)
+#define RK3399_GMAC_RXCLK_DLY_ENABLE    GRF_BIT(15)
+#define RK3399_GMAC_RXCLK_DLY_DISABLE   GRF_CLR_BIT(15)
+#define RK3399_GMAC_CLK_RX_DL_CFG(val)  HIWORD_UPDATE(val, 0x7F, 8)
+#define RK3399_GMAC_CLK_TX_DL_CFG(val)  HIWORD_UPDATE(val, 0x7F, 0)
+
+static void rk3399_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, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                     RK3399_GMAC_PHY_INTF_SEL_RGMII |
+                     RK3399_GMAC_RMII_MODE_CLR);
+        regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON6,
+                     RK3399_GMAC_RXCLK_DLY_ENABLE |
+                     RK3399_GMAC_TXCLK_DLY_ENABLE |
+                     RK3399_GMAC_CLK_RX_DL_CFG(rx_delay) |
+                     RK3399_GMAC_CLK_TX_DL_CFG(tx_delay));
+}
+
+static void rk3399_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, RK3399_GRF_SOC_CON5,
+                     RK3399_GMAC_PHY_INTF_SEL_RMII | RK3399_GMAC_RMII_MODE);
+}
+
+static void rk3399_set_rgmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+        struct device *dev = &bsp_priv->pdev->dev;
+
+        if (IS_ERR(bsp_priv->grf)) {
+                dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        if (speed == 10)
+                regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                             RK3399_GMAC_CLK_2_5M);
+        else if (speed == 100)
+                regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                             RK3399_GMAC_CLK_25M);
+        else if (speed == 1000)
+                regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                             RK3399_GMAC_CLK_125M);
+        else
+                dev_err(dev, "unknown speed value for RGMII! speed=%d", speed);
+}
+
+static void rk3399_set_rmii_speed(struct rk_priv_data *bsp_priv, int speed)
+{
+        struct device *dev = &bsp_priv->pdev->dev;
+
+        if (IS_ERR(bsp_priv->grf)) {
+                dev_err(dev, "%s: Missing rockchip,grf property\n", __func__);
+                return;
+        }
+
+        if (speed == 10) {
+                regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                             RK3399_GMAC_RMII_CLK_2_5M |
+                             RK3399_GMAC_SPEED_10M);
+        } else if (speed == 100) {
+                regmap_write(bsp_priv->grf, RK3399_GRF_SOC_CON5,
+                             RK3399_GMAC_RMII_CLK_25M |
+                             RK3399_GMAC_SPEED_100M);
+        } else {
+                dev_err(dev, "unknown speed value for RMII! speed=%d", speed);
+        }
+}
+
+static const struct rk_gmac_ops rk3399_ops = {
+        .set_to_rgmii = rk3399_set_to_rgmii,
+        .set_to_rmii = rk3399_set_to_rmii,
+        .set_rgmii_speed = rk3399_set_rgmii_speed,
+        .set_rmii_speed = rk3399_set_rmii_speed,
+};
+
 static int gmac_clk_init(struct rk_priv_data *bsp_priv)
 {
         struct device *dev = &bsp_priv->pdev->dev;
@@ -760,7 +984,9 @@ static int rk_gmac_probe(struct platform_device *pdev)
 static const struct of_device_id rk_gmac_dwmac_match[] = {
         { .compatible = "rockchip,rk3228-gmac", .data = &rk3228_ops },
         { .compatible = "rockchip,rk3288-gmac", .data = &rk3288_ops },
+        { .compatible = "rockchip,rk3366-gmac", .data = &rk3366_ops },
         { .compatible = "rockchip,rk3368-gmac", .data = &rk3368_ops },
+        { .compatible = "rockchip,rk3399-gmac", .data = &rk3399_ops },
         { }
 };
 MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);