diff options
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic-2.6/files/drivers/net/phy/ar8216.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/target/linux/generic-2.6/files/drivers/net/phy/ar8216.c b/target/linux/generic-2.6/files/drivers/net/phy/ar8216.c index 394e50d479..a473e3b181 100644 --- a/target/linux/generic-2.6/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic-2.6/files/drivers/net/phy/ar8216.c @@ -33,6 +33,7 @@ /* size of the vlan table */ #define AR8X16_MAX_VLANS 128 +#define AR8X16_PROBE_RETRIES 10 struct ar8216_priv { struct switch_dev dev; @@ -119,8 +120,25 @@ ar8216_id_chip(struct ar8216_priv *priv) { u32 val; u16 id; + int i; + val = ar8216_mii_read(priv, AR8216_REG_CTRL); + if (val == ~0) + return UNKNOWN; + id = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION); + for (i = 0; i < AR8X16_PROBE_RETRIES; i++) { + u16 t; + + val = ar8216_mii_read(priv, AR8216_REG_CTRL); + if (val == ~0) + return UNKNOWN; + + t = val & (AR8216_CTRL_REVISION | AR8216_CTRL_VERSION); + if (t != id) + return UNKNOWN; + } + switch (id) { case 0x0101: return AR8216; @@ -736,11 +754,13 @@ static int ar8216_probe(struct phy_device *pdev) { struct ar8216_priv priv; + u16 chip; priv.phy = pdev; - if (ar8216_id_chip(&priv) == UNKNOWN) { + chip = ar8216_id_chip(&priv); + if (chip == UNKNOWN) return -ENODEV; - } + return 0; } |