ar71xx: ag71xx: detect the built-in switch of the AR934X SoCs

SVN-Revision: 29551

diff --git a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
index e96fe3626165be2f6019fd1d621d59a6d4c9e130..c1b57a529731d13f719ad34d426cc98ab4cc4e34 100644 (file)
--- a/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
+++ b/target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c
@@ -25,6 +25,8 @@
 #define AR7240_MASK_CTRL_REVISION_M    BITM(8)
 #define AR7240_MASK_CTRL_VERSION_M     BITM(8)
 #define AR7240_MASK_CTRL_VERSION_S     8
+#define   AR7240_MASK_CTRL_VERSION_AR7240 0x01
+#define   AR7240_MASK_CTRL_VERSION_AR934X 0x02
 #define AR7240_MASK_CTRL_SOFT_RESET    BIT(31)
 
 #define AR7240_REG_MAC_ADDR0           0x20
@@ -192,6 +194,9 @@
 #define AR7240_PHY_ID1         0x004d
 #define AR7240_PHY_ID2         0xd041
 
+#define AR934X_PHY_ID1         0x004d
+#define AR934X_PHY_ID2         0xd042
+
 #define AR7240_MAX_VLANS       16
 
 #define sw_to_ar7240(_dev) container_of(_dev, struct ar7240sw, swdev)
@@ -201,6 +206,7 @@ struct ar7240sw {
        struct ag71xx_switch_platform_data *swdata;
        struct switch_dev swdev;
        int num_ports;
+       u8 ver;
        bool vlan;
        u16 vlan_id[AR7240_MAX_VLANS];
        u8 vlan_table[AR7240_MAX_VLANS];
@@ -217,6 +223,16 @@ struct ar7240sw_hw_stat {
 
 static DEFINE_MUTEX(reg_mutex);
 
+static inline int sw_is_ar7240(struct ar7240sw *as)
+{
+       return as->ver == AR7240_MASK_CTRL_VERSION_AR7240;
+}
+
+static inline int sw_is_ar934x(struct ar7240sw *as)
+{
+       return as->ver == AR7240_MASK_CTRL_VERSION_AR934X;
+}
+
 static inline u32 ar7240sw_port_mask(struct ar7240sw *as, int port)
 {
        return BIT(port);
@@ -851,12 +867,12 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
        u32 ctrl;
        u16 phy_id1;
        u16 phy_id2;
-       u8 ver;
        int i;
 
        phy_id1 = ar7240sw_phy_read(mii, 0, MII_PHYSID1);
        phy_id2 = ar7240sw_phy_read(mii, 0, MII_PHYSID2);
-       if (phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) {
+       if ((phy_id1 != AR7240_PHY_ID1 || phy_id2 != AR7240_PHY_ID2) &&
+           (phy_id1 != AR934X_PHY_ID1 || phy_id2 != AR934X_PHY_ID2)) {
                pr_err("%s: unknown phy id '%04x:%04x'\n",
                       ag->dev->name, phy_id1, phy_id2);
                return NULL;
@@ -869,27 +885,31 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
        as->mii_bus = mii;
        as->swdata = pdata->switch_data;
 
+       swdev = &as->swdev;
+
        ctrl = ar7240sw_reg_read(mii, AR7240_REG_MASK_CTRL);
-       ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) & AR7240_MASK_CTRL_VERSION_M;
-       if (ver != 1) {
+       as->ver = (ctrl >> AR7240_MASK_CTRL_VERSION_S) &
+                 AR7240_MASK_CTRL_VERSION_M;
+
+       if (sw_is_ar7240(as)) {
+               swdev->name = "AR7240/AR9330 built-in switch";
+       } else if (sw_is_ar934x(as)) {
+               swdev->name = "AR934X built-in switch";
+       } else {
                pr_err("%s: unsupported chip, ctrl=%08x\n",
                        ag->dev->name, ctrl);
-               return NULL;
+               goto err_free;
        }
 
-       swdev = &as->swdev;
-       swdev->name = "AR7240 built-in switch";
        swdev->ports = AR7240_NUM_PORTS - 1;
        swdev->cpu_port = AR7240_PORT_CPU;
        swdev->vlans = AR7240_MAX_VLANS;
        swdev->ops = &ar7240_ops;
 
-       if (register_switch(&as->swdev, ag->dev) < 0) {
-               kfree(as);
-               return NULL;
-       }
+       if (register_switch(&as->swdev, ag->dev) < 0)
+               goto err_free;
 
-       pr_info("%s: Found an AR7240 built-in switch\n", ag->dev->name);
+       pr_info("%s: Found an %s\n", ag->dev->name, swdev->name);
 
        /* initialize defaults */
        for (i = 0; i < AR7240_MAX_VLANS; i++)
@@ -898,6 +918,10 @@ static struct ar7240sw *ar7240_probe(struct ag71xx *ag)
        as->vlan_table[0] = ar7240sw_port_mask_all(as);
 
        return as;
+
+err_free:
+       kfree(as);
+       return NULL;
 }
 
 static void link_function(struct work_struct *work) {