path: root/net/dsa/dsa.c
diff options
authorGuenter Roeck <linux@roeck-us.net>2014-10-29 10:45:01 -0700
committerDavid S. Miller <davem@davemloft.net>2014-10-30 14:54:11 -0400
commit6793abb4e8491b1d673ccfd09e1a73d1ff8b9386 (patch)
treec6a2a1c1a626016fe80f212969cf6f62063c346d /net/dsa/dsa.c
parent87e5f66b3723b2d912b565bf7100e5121f302cbf (diff)
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/dsa/dsa.c')
1 files changed, 4 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)
+ 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)

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