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authorGabor Juhos <juhosg@openwrt.org>2011-12-15 22:25:28 +0000
committerGabor Juhos <juhosg@openwrt.org>2011-12-15 22:25:28 +0000
commit44014110b89bc063ffd83048f4db6928f07c177c (patch)
treeae219a58bf1a534da1f1d75778ee581487cc947e /target/linux
parente2a546d475135e3e6755fc9a5f5fb55af1c9fb3e (diff)
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ar71xx: ag71xx: detect the built-in switch of the AR934X SoCs
SVN-Revision: 29551
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/ar71xx/files/drivers/net/ag71xx/ag71xx_ar7240.c48
1 files changed, 36 insertions, 12 deletions
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 e96fe36..c1b57a5 100644
--- 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) {