drivers: add ethernet support for qca953x in ag7xxx driver

Signed-off-by: Rosy Song <rosysong@rosinson.com>

diff --git a/drivers/net/ag7xxx.c b/drivers/net/ag7xxx.c
index 8146c3170e1643e293cb2e22d0e06fbed00718eb..403eb64895e69ce23fd25a9711f767a6f56de546 100644 (file)
--- a/drivers/net/ag7xxx.c
+++ b/drivers/net/ag7xxx.c
@@ -23,6 +23,7 @@ DECLARE_GLOBAL_DATA_PTR;
 enum ag7xxx_model {
        AG7XXX_MODEL_AG933X,
        AG7XXX_MODEL_AG934X,
+       AG7XXX_MODEL_AG953X
 };
 
 /* MAC Configuration 1 */
@@ -99,8 +100,29 @@ enum ag7xxx_model {
 /* Rx Status */
 #define AG7XXX_ETH_DMA_RX_STATUS               0x194
 
+/* Custom register at 0x1805002C */
+#define AG7XXX_ETH_XMII                        0x2C
+#define AG7XXX_ETH_XMII_TX_INVERT              BIT(31)
+#define AG7XXX_ETH_XMII_RX_DELAY_LSB           28
+#define AG7XXX_ETH_XMII_RX_DELAY_MASK          0x30000000
+#define AG7XXX_ETH_XMII_RX_DELAY_SET(x) \
+       (((x) << AG7XXX_ETH_XMII_RX_DELAY_LSB) & AG7XXX_ETH_XMII_RX_DELAY_MASK)
+#define AG7XXX_ETH_XMII_TX_DELAY_LSB           26
+#define AG7XXX_ETH_XMII_TX_DELAY_MASK          0x0c000000
+#define AG7XXX_ETH_XMII_TX_DELAY_SET(x) \
+       (((x) << AG7XXX_ETH_XMII_TX_DELAY_LSB) & AG7XXX_ETH_XMII_TX_DELAY_MASK)
+#define AG7XXX_ETH_XMII_GIGE           BIT(25)
+
 /* Custom register at 0x18070000 */
 #define AG7XXX_GMAC_ETH_CFG                    0x00
+#define AG7XXX_ETH_CFG_RXDV_DELAY_LSB          16
+#define AG7XXX_ETH_CFG_RXDV_DELAY_MASK         0x00030000
+#define AG7XXX_ETH_CFG_RXDV_DELAY_SET(x) \
+       (((x) << AG7XXX_ETH_CFG_RXDV_DELAY_LSB) & AG7XXX_ETH_CFG_RXDV_DELAY_MASK)
+#define AG7XXX_ETH_CFG_RXD_DELAY_LSB           14
+#define AG7XXX_ETH_CFG_RXD_DELAY_MASK          0x0000c000
+#define AG7XXX_ETH_CFG_RXD_DELAY_SET(x)        \
+       (((x) << AG7XXX_ETH_CFG_RXD_DELAY_LSB) & AG7XXX_ETH_CFG_RXD_DELAY_MASK)
 #define AG7XXX_ETH_CFG_SW_PHY_ADDR_SWAP                BIT(8)
 #define AG7XXX_ETH_CFG_SW_PHY_SWAP             BIT(7)
 #define AG7XXX_ETH_CFG_SW_ONLY_MODE            BIT(6)
@@ -200,7 +222,8 @@ static int ag7xxx_switch_reg_read(struct mii_dev *bus, int reg, u32 *val)
        u16 rv = 0;
        int ret;
 
-       if (priv->model == AG7XXX_MODEL_AG933X) {
+       if (priv->model == AG7XXX_MODEL_AG933X ||
+           priv->model == AG7XXX_MODEL_AG953X) {
                phy_addr = 0x1f;
                reg_addr = 0x10;
        } else if (priv->model == AG7XXX_MODEL_AG934X) {
@@ -239,7 +262,8 @@ static int ag7xxx_switch_reg_write(struct mii_dev *bus, int reg, u32 val)
        u32 reg_temp;
        int ret;
 
-       if (priv->model == AG7XXX_MODEL_AG933X) {
+       if (priv->model == AG7XXX_MODEL_AG933X ||
+           priv->model == AG7XXX_MODEL_AG953X) {
                phy_addr = 0x1f;
                reg_addr = 0x10;
        } else if (priv->model == AG7XXX_MODEL_AG934X) {
@@ -598,10 +622,16 @@ static int ag7xxx_mii_setup(struct udevice *dev)
                        return 0;
        }
 
-       if (priv->model == AG7XXX_MODEL_AG934X) {
-               writel(AG7XXX_ETH_MII_MGMT_CFG_RESET | 0x4,
+       if (priv->model == AG7XXX_MODEL_AG934X)
+               reg = 0x4;
+       else if (priv->model == AG7XXX_MODEL_AG953X)
+               reg = 0x2;
+
+       if (priv->model == AG7XXX_MODEL_AG934X ||
+           priv->model == AG7XXX_MODEL_AG953X) {
+               writel(AG7XXX_ETH_MII_MGMT_CFG_RESET | reg,
                       priv->regs + AG7XXX_ETH_MII_MGMT_CFG);
-               writel(0x4, priv->regs + AG7XXX_ETH_MII_MGMT_CFG);
+               writel(reg, priv->regs + AG7XXX_ETH_MII_MGMT_CFG);
                return 0;
        }
 
@@ -698,14 +728,125 @@ static int ag933x_phy_setup_lan(struct udevice *dev)
        return 0;
 }
 
+static int ag953x_phy_setup_wan(struct udevice *dev)
+{
+       int ret;
+       u32 reg = 0;
+       struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
+
+       /* Set wan port connect to GE0 */
+       ret = ag7xxx_switch_reg_read(priv->bus, 0x8, &reg);
+       if (ret)
+               return ret;
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x8, reg | BIT(28));
+       if (ret)
+               return ret;
+
+       /* Configure switch port 4 (GMAC0) */
+       ret = ag7xxx_switch_write(priv->bus, 4, MII_BMCR, 0x9000);
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
+static int ag953x_phy_setup_lan(struct udevice *dev)
+{
+       struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
+       int i, ret;
+       u32 reg = 0;
+
+       /* Reset the switch */
+       ret = ag7xxx_switch_reg_read(priv->bus, 0, &reg);
+       if (ret)
+               return ret;
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0, reg | BIT(31));
+       if (ret)
+               return ret;
+
+       do {
+               ret = ag7xxx_switch_reg_read(priv->bus, 0, &reg);
+               if (ret)
+                       return ret;
+       } while (reg & BIT(31));
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x100, 0x4e);
+       if (ret)
+               return ret;
+
+       /* Set GMII mode */
+       ret = ag7xxx_switch_reg_read(priv->bus, 0x4, &reg);
+       if (ret)
+               return ret;
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x4, reg | BIT(6));
+       if (ret)
+               return ret;
+
+       /* Configure switch ports 0...4 (GMAC1) */
+       for (i = 0; i < 5; i++) {
+               ret = ag7xxx_switch_write(priv->bus, i, MII_BMCR, 0x9000);
+               if (ret)
+                       return ret;
+       }
+
+       for (i = 0; i < 5; i++) {
+               ret = ag7xxx_switch_reg_write(priv->bus, (i + 2) * 0x100, BIT(9));
+               if (ret)
+                       return ret;
+       }
+
+       /* QM Control */
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x38, 0xc000050e);
+       if (ret)
+               return ret;
+
+       /* Disable Atheros header */
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x104, 0x4004);
+       if (ret)
+               return ret;
+
+       /* Tag priority mapping */
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x70, 0xfa50);
+       if (ret)
+               return ret;
+
+       /* Enable ARP packets to the CPU */
+       ret = ag7xxx_switch_reg_read(priv->bus, 0x5c, &reg);
+       if (ret)
+               return ret;
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x5c, reg | 0x100000);
+       if (ret)
+               return ret;
+
+       /* Enable broadcast packets to the CPU */
+       ret = ag7xxx_switch_reg_read(priv->bus, 0x2c, &reg);
+       if (ret)
+               return ret;
+
+       ret = ag7xxx_switch_reg_write(priv->bus, 0x2c, reg | BIT(25) | BIT(26));
+       if (ret)
+               return ret;
+
+       return 0;
+}
+
 static int ag933x_phy_setup_reset_set(struct udevice *dev, int port)
 {
        struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
        int ret;
 
-       ret = ag7xxx_mdio_write(priv->bus, port, 0, MII_ADVERTISE,
-                               ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
-                               ADVERTISE_PAUSE_ASYM);
+       if (priv->model == AG7XXX_MODEL_AG953X) {
+               ret = ag7xxx_switch_write(priv->bus, port, MII_ADVERTISE,
+                                       ADVERTISE_ALL);
+       } else {
+               ret = ag7xxx_mdio_write(priv->bus, port, 0, MII_ADVERTISE,
+                                       ADVERTISE_ALL | ADVERTISE_PAUSE_CAP |
+                                       ADVERTISE_PAUSE_ASYM);
+       }
        if (ret)
                return ret;
 
@@ -716,6 +857,10 @@ static int ag933x_phy_setup_reset_set(struct udevice *dev, int port)
                        return ret;
        }
 
+       if (priv->model == AG7XXX_MODEL_AG953X)
+               return ag7xxx_switch_write(priv->bus, port, MII_BMCR,
+                                        BMCR_ANENABLE | BMCR_RESET);
+
        return ag7xxx_mdio_write(priv->bus, port, 0, MII_BMCR,
                                 BMCR_ANENABLE | BMCR_RESET);
 }
@@ -724,13 +869,23 @@ static int ag933x_phy_setup_reset_fin(struct udevice *dev, int port)
 {
        struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
        int ret;
+       u16 reg;
 
-       do {
-               ret = ag7xxx_mdio_read(priv->bus, port, 0, MII_BMCR);
-               if (ret < 0)
-                       return ret;
-               mdelay(10);
-       } while (ret & BMCR_RESET);
+       if (priv->model == AG7XXX_MODEL_AG953X) {
+               do {
+                       ret = ag7xxx_switch_read(priv->bus, port, MII_BMCR, &reg);
+                       if (ret < 0)
+                               return ret;
+                       mdelay(10);
+               } while (reg & BMCR_RESET);
+       } else {
+               do {
+                       ret = ag7xxx_mdio_read(priv->bus, port, 0, MII_BMCR);
+                       if (ret < 0)
+                               return ret;
+                       mdelay(10);
+               } while (ret & BMCR_RESET);
+       }
 
        return 0;
 }
@@ -739,10 +894,12 @@ static int ag933x_phy_setup_common(struct udevice *dev)
 {
        struct ar7xxx_eth_priv *priv = dev_get_priv(dev);
        int i, ret, phymax;
+       u16 reg;
 
        if (priv->model == AG7XXX_MODEL_AG933X)
                phymax = 4;
-       else if (priv->model == AG7XXX_MODEL_AG934X)
+       else if (priv->model == AG7XXX_MODEL_AG934X ||
+               priv->model == AG7XXX_MODEL_AG953X)
                phymax = 5;
        else
                return -EINVAL;
@@ -757,7 +914,10 @@ static int ag933x_phy_setup_common(struct udevice *dev)
                        return ret;
 
                /* Read out link status */
-               ret = ag7xxx_mdio_read(priv->bus, phymax, 0, MII_MIPSCR);
+               if (priv->model == AG7XXX_MODEL_AG953X)
+                       ret = ag7xxx_switch_read(priv->bus, phymax, MII_MIPSCR, &reg);
+               else
+                       ret = ag7xxx_mdio_read(priv->bus, phymax, 0, MII_MIPSCR);
                if (ret < 0)
                        return ret;
 
@@ -779,7 +939,10 @@ static int ag933x_phy_setup_common(struct udevice *dev)
 
        for (i = 0; i < phymax; i++) {
                /* Read out link status */
-               ret = ag7xxx_mdio_read(priv->bus, i, 0, MII_MIPSCR);
+               if (priv->model == AG7XXX_MODEL_AG953X)
+                       ret = ag7xxx_switch_read(priv->bus, i, MII_MIPSCR, &reg);
+               else
+                       ret = ag7xxx_mdio_read(priv->bus, i, 0, MII_MIPSCR);
                if (ret < 0)
                        return ret;
        }
@@ -858,6 +1021,11 @@ static int ag7xxx_mac_probe(struct udevice *dev)
                        ret = ag933x_phy_setup_wan(dev);
                else
                        ret = ag933x_phy_setup_lan(dev);
+       } else if (priv->model == AG7XXX_MODEL_AG953X) {
+               if (priv->interface == PHY_INTERFACE_MODE_RMII)
+                       ret = ag953x_phy_setup_wan(dev);
+               else
+                       ret = ag953x_phy_setup_lan(dev);
        } else if (priv->model == AG7XXX_MODEL_AG934X) {
                ret = ag934x_phy_setup(dev);
        } else {
@@ -997,6 +1165,7 @@ static int ag7xxx_eth_ofdata_to_platdata(struct udevice *dev)
 static const struct udevice_id ag7xxx_eth_ids[] = {
        { .compatible = "qca,ag933x-mac", .data = AG7XXX_MODEL_AG933X },
        { .compatible = "qca,ag934x-mac", .data = AG7XXX_MODEL_AG934X },
+       { .compatible = "qca,ag953x-mac", .data = AG7XXX_MODEL_AG953X },
        { }
 };