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| author | Guenter Roeck <linux@roeck-us.net> | 2014-10-29 10:45:01 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-30 14:54:11 -0400 |
| commit | 6793abb4e8491b1d673ccfd09e1a73d1ff8b9386 (patch) | |
| tree | c6a2a1c1a626016fe80f212969cf6f62063c346d /net | |
| parent | 87e5f66b3723b2d912b565bf7100e5121f302cbf (diff) | |
| download | linux-stable-6793abb4e8491b1d673ccfd09e1a73d1ff8b9386.tar.gz linux-stable-6793abb4e8491b1d673ccfd09e1a73d1ff8b9386.tar.bz2 linux-stable-6793abb4e8491b1d673ccfd09e1a73d1ff8b9386.zip | |
net: dsa: Add support for switch EEPROM access
On some chips it is possible to access the switch eeprom.
Add infrastructure support for it.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
| -rw-r--r-- | net/dsa/dsa.c | 4 | ||||
| -rw-r--r-- | net/dsa/slave.c | 41 |
2 files changed, 45 insertions, 0 deletions
diff --git a/net/dsa/dsa.c b/net/dsa/dsa.c index 5edbbca89f1f..b51ef592f0a2 100644 --- a/net/dsa/dsa.c +++ b/net/dsa/dsa.c @@ -575,6 +575,7 @@ static int dsa_of_probe(struct platform_device *pdev) const char *port_name; int chip_index, port_index; const unsigned int *sw_addr, *port_reg; + u32 eeprom_len; int ret; mdio = of_parse_phandle(np, "dsa,mii-bus", 0); @@ -626,6 +627,9 @@ static int dsa_of_probe(struct platform_device *pdev) if (cd->sw_addr > PHY_MAX_ADDR) continue; + if (!of_property_read_u32(np, "eeprom-length", &eeprom_len)) + cd->eeprom_len = eeprom_len; + for_each_available_child_of_node(child, port) { port_reg = of_get_property(port, "reg", NULL); if (!port_reg) diff --git a/net/dsa/slave.c b/net/dsa/slave.c index 6d1817449c36..ff2fbe79bc57 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -271,6 +271,44 @@ static u32 dsa_slave_get_link(struct net_device *dev) return -EOPNOTSUPP; } +static int dsa_slave_get_eeprom_len(struct net_device *dev) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->pd->eeprom_len) + return ds->pd->eeprom_len; + + if (ds->drv->get_eeprom_len) + return ds->drv->get_eeprom_len(ds); + + return 0; +} + +static int dsa_slave_get_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->get_eeprom) + return ds->drv->get_eeprom(ds, eeprom, data); + + return -EOPNOTSUPP; +} + +static int dsa_slave_set_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->set_eeprom) + return ds->drv->set_eeprom(ds, eeprom, data); + + return -EOPNOTSUPP; +} + static void dsa_slave_get_strings(struct net_device *dev, uint32_t stringset, uint8_t *data) { @@ -387,6 +425,9 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_drvinfo = dsa_slave_get_drvinfo, .nway_reset = dsa_slave_nway_reset, .get_link = dsa_slave_get_link, + .get_eeprom_len = dsa_slave_get_eeprom_len, + .get_eeprom = dsa_slave_get_eeprom, + .set_eeprom = dsa_slave_set_eeprom, .get_strings = dsa_slave_get_strings, .get_ethtool_stats = dsa_slave_get_ethtool_stats, .get_sset_count = dsa_slave_get_sset_count, |