diff options
Diffstat (limited to 'drivers/net/ixp2000/pm3386.c')
| -rw-r--r-- | drivers/net/ixp2000/pm3386.c | 30 |
1 files changed, 24 insertions, 6 deletions
diff --git a/drivers/net/ixp2000/pm3386.c b/drivers/net/ixp2000/pm3386.c index 5c7ab7564053..5224651c9aac 100644 --- a/drivers/net/ixp2000/pm3386.c +++ b/drivers/net/ixp2000/pm3386.c @@ -86,40 +86,53 @@ static void pm3386_port_reg_write(int port, int _reg, int spacing, u16 value) pm3386_reg_write(port >> 1, reg, value); } +int pm3386_secondary_present(void) +{ + return pm3386_reg_read(1, 0) == 0x3386; +} void pm3386_reset(void) { u8 mac[3][6]; + int secondary; + + secondary = pm3386_secondary_present(); /* Save programmed MAC addresses. */ pm3386_get_mac(0, mac[0]); pm3386_get_mac(1, mac[1]); - pm3386_get_mac(2, mac[2]); + if (secondary) + pm3386_get_mac(2, mac[2]); /* Assert analog and digital reset. */ pm3386_reg_write(0, 0x002, 0x0060); - pm3386_reg_write(1, 0x002, 0x0060); + if (secondary) + pm3386_reg_write(1, 0x002, 0x0060); mdelay(1); /* Deassert analog reset. */ pm3386_reg_write(0, 0x002, 0x0062); - pm3386_reg_write(1, 0x002, 0x0062); + if (secondary) + pm3386_reg_write(1, 0x002, 0x0062); mdelay(10); /* Deassert digital reset. */ pm3386_reg_write(0, 0x002, 0x0063); - pm3386_reg_write(1, 0x002, 0x0063); + if (secondary) + pm3386_reg_write(1, 0x002, 0x0063); mdelay(10); /* Restore programmed MAC addresses. */ pm3386_set_mac(0, mac[0]); pm3386_set_mac(1, mac[1]); - pm3386_set_mac(2, mac[2]); + if (secondary) + pm3386_set_mac(2, mac[2]); /* Disable carrier on all ports. */ pm3386_set_carrier(0, 0); pm3386_set_carrier(1, 0); - pm3386_set_carrier(2, 0); + if (secondary) + pm3386_set_carrier(2, 0); } static u16 swaph(u16 x) @@ -127,6 +140,11 @@ static u16 swaph(u16 x) return ((x << 8) | (x >> 8)) & 0xffff; } +int pm3386_port_count(void) +{ + return 2 + pm3386_secondary_present(); +} + void pm3386_init_port(int port) { int pm = port >> 1; |