/*
* netxen_niu_gbe_phy_read - read a register from the GbE PHY via
* mii management interface.
*
* Note: The MII management interface goes through port 0.
* Individual phys are addressed as follows:
* @param phy [15:8] phy id
* @param reg [7:0] register number
*
* @returns 0 on success
* -1 on error
*
*/
int netxen_niu_gbe_phy_read(struct netxen_adapter *adapter, long phy,
long reg, __u32 * readval)
{
long timeout = 0;
long result = 0;
long restore = 0;
__u32 address;
__u32 command;
__u32 status;
__u32 mac_cfg0;
if (phy_lock(adapter) != 0) {
return -1;
}
/*
* MII mgmt all goes through port 0 MAC interface,
* so it cannot be in reset
*/
if (netxen_nic_hw_read_wx(adapter, NETXEN_NIU_GB_MAC_CONFIG_0(0),
&mac_cfg0, 4))
return -EIO;
if (netxen_gb_get_soft_reset(mac_cfg0)) {
__u32 temp;
temp = 0;
netxen_gb_tx_reset_pb(temp);
netxen_gb_rx_reset_pb(temp);
netxen_gb_tx_reset_mac(temp);
netxen_gb_rx_reset_mac(temp);
if (netxen_nic_hw_write_wx(adapter,
NETXEN_NIU_GB_MAC_CONFIG_0(0),
&temp, 4))
return -EIO;
restore = 1;
}
address = 0;
netxen_gb_mii_mgmt_reg_addr(address, reg);
netxen_gb_mii_mgmt_phy_addr(address, phy);
if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_ADDR(0),
&address, 4))
return -EIO;
command = 0; /* turn off any prior activity */
if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
&command, 4))
return -EIO;
/* send read command */
netxen_gb_mii_mgmt_set_read_cycle(command);
if (netxen_nic_hw_write_wx(adapter, NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
&command, 4))
return -EIO;
status = 0;
do {
if (netxen_nic_hw_read_wx(adapter,
NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
&status, 4))
return -EIO;
timeout++;
} while ((netxen_get_gb_mii_mgmt_busy(status)
|| netxen_get_gb_mii_mgmt_notvalid(status))
&& (timeout++ < NETXEN_NIU_PHY_WAITMAX));
if (timeout < NETXEN_NIU_PHY_WAITMAX) {
if (netxen_nic_hw_read_wx(adapter,
NETXEN_NIU_GB_MII_MGMT_STATUS(0),
readval, 4))
return -EIO;
result = 0;
} else
result = -1;
if (restore)
if (netxen_nic_hw_write_wx(adapter,
NETXEN_NIU_GB_MAC_CONFIG_0(0),
&mac_cfg0, 4))
return -EIO;
phy_unlock(adapter);
return result;
}
NETXEN_NIU_GB1_HALF_DUPLEX,
NETXEN_NIU_RESET_SYS_FIFOS,
NETXEN_NIU_GB_CRC_DROP,
NETXEN_NIU_GB_DROP_WRONGADDR,
NETXEN_NIU_TEST_MUX_CTL,
NETXEN_NIU_GB_MAC_CONFIG_0(0),
NETXEN_NIU_GB_MAC_CONFIG_1(0),
NETXEN_NIU_GB_HALF_DUPLEX_CTRL(0),
NETXEN_NIU_GB_MAX_FRAME_SIZE(0),
NETXEN_NIU_GB_TEST_REG(0),
NETXEN_NIU_GB_MII_MGMT_CONFIG(0),
NETXEN_NIU_GB_MII_MGMT_COMMAND(0),
NETXEN_NIU_GB_MII_MGMT_ADDR(0),
NETXEN_NIU_GB_MII_MGMT_CTRL(0),
NETXEN_NIU_GB_MII_MGMT_STATUS(0),
NETXEN_NIU_GB_MII_MGMT_INDICATE(0),
NETXEN_NIU_GB_INTERFACE_CTRL(0),
NETXEN_NIU_GB_INTERFACE_STATUS(0),
NETXEN_NIU_GB_STATION_ADDR_0(0),
NETXEN_NIU_GB_STATION_ADDR_1(0),
-1,
}
},
{
/* XG Mode */
{
NETXEN_NIU_XG_SINGLE_TERM,
NETXEN_NIU_XG_DRIVE_HI,
NETXEN_NIU_XG_DRIVE_LO,
NETXEN_NIU_XG_DTX,
static int netxen_nic_reg_test(struct net_device *dev)
{
struct netxen_port *port = netdev_priv(dev);
struct netxen_adapter *adapter = port->adapter;
u32 data_read, data_written, save;
__u32 mode;
/*
* first test the "Read Only" registers by writing which mode
*/
netxen_nic_read_w0(adapter, NETXEN_NIU_MODE, &mode);
if (netxen_get_niu_enable_ge(mode)) { /* GB Mode */
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_STATUS(port->portnum),
&data_read);
save = data_read;
if (data_read)
data_written = data_read & NETXEN_NIC_INVALID_DATA;
else
data_written = NETXEN_NIC_INVALID_DATA;
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_STATUS(port->
portnum),
data_written);
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_STATUS(port->portnum),
&data_read);
if (data_written == data_read) {
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_STATUS(port->
portnum),
save);
return 0;
}
/* netxen_niu_gb_mii_mgmt_indicators is read only */
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
portnum),
&data_read);
save = data_read;
if (data_read)
data_written = data_read & NETXEN_NIC_INVALID_DATA;
else
data_written = NETXEN_NIC_INVALID_DATA;
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
portnum),
data_written);
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_INDICATE(port->
portnum),
&data_read);
if (data_written == data_read) {
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_MII_MGMT_INDICATE
(port->portnum), save);
return 0;
}
/* netxen_niu_gb_interface_status is read only */
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_INTERFACE_STATUS(port->
portnum),
&data_read);
save = data_read;
if (data_read)
data_written = data_read & NETXEN_NIC_INVALID_DATA;
else
data_written = NETXEN_NIC_INVALID_DATA;
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_INTERFACE_STATUS(port->
portnum),
data_written);
netxen_nic_read_w0(adapter,
NETXEN_NIU_GB_INTERFACE_STATUS(port->
portnum),
&data_read);
if (data_written == data_read) {
netxen_nic_write_w0(adapter,
NETXEN_NIU_GB_INTERFACE_STATUS
(port->portnum), save);
return 0;
}
} /* GB Mode */
return 1;
}
