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net: asix: add read_mac function

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Initial device MAC should be read while getting info about the
device, so it's wrong to only read it in asix_init().

Add a dedicated function to read the initial MAC, which is also
able to handle devices that have their initial MAC stored in
EEPROM. Call this function inasix_eth_get_info().

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Lucas Stach 2012-08-22 11:05:00 +00:00 • committed by Joe Hershberger
parent 58f8fab8a4
commit 02c8d8cc6e
1 changed files with 35 additions and 12 deletions
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47
drivers/usb/eth/asix.c
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@ -32,6 +32,7 @@
#define AX_CMD_READ_MII_REG 0x07
#define AX_CMD_WRITE_MII_REG 0x08
#define AX_CMD_SET_HW_MII 0x0a
#define AX_CMD_READ_EEPROM 0x0b
#define AX_CMD_READ_RX_CTL 0x0f
#define AX_CMD_WRITE_RX_CTL 0x10
#define AX_CMD_WRITE_IPG0 0x12
@ -103,6 +104,7 @@
#define FLAG_NONE 0
#define FLAG_TYPE_AX88172 (1U << 0)
#define FLAG_TYPE_AX88772 (1U << 1)
#define FLAG_EEPROM_MAC (1U << 2) /* initial mac address in eeprom */
/* local vars */
static int curr_eth_dev; /* index for name of next device detected */
@ -337,6 +339,34 @@ static int mii_nway_restart(struct ueth_data *dev)
return r;
}
static int asix_read_mac(struct eth_device *eth)
{
struct ueth_data *dev = (struct ueth_data *)eth->priv;
struct asix_private *priv = (struct asix_private *)dev->dev_priv;
int i;
ALLOC_CACHE_ALIGN_BUFFER(unsigned char, buf, ETH_ALEN);
if (priv->flags & FLAG_EEPROM_MAC) {
for (i = 0; i < (ETH_ALEN >> 1); i++) {
if (asix_read_cmd(dev, AX_CMD_READ_EEPROM,
0x04 + i, 0, 2, buf) < 0) {
debug("Failed to read SROM address 04h.\n");
return -1;
}
memcpy((eth->enetaddr + i * 2), buf, 2);
}
} else {
if (asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf)
< 0) {
debug("Failed to read MAC address.\n");
return -1;
}
memcpy(eth->enetaddr, buf, ETH_ALEN);
}
return 0;
}
static int asix_basic_reset(struct ueth_data *dev)
{
int embd_phy;
@ -391,18 +421,6 @@ static int asix_init(struct eth_device *eth, bd_t *bd)
debug("** %s()\n", __func__);
/* Get the MAC address */
if (asix_read_cmd(dev, AX_CMD_READ_NODE_ID,
0, 0, ETH_ALEN, buf) < 0) {
debug("Failed to read MAC address.\n");
goto out_err;
}
memcpy(eth->enetaddr, buf, ETH_ALEN);
debug("MAC %02x:%02x:%02x:%02x:%02x:%02x\n",
eth->enetaddr[0], eth->enetaddr[1],
eth->enetaddr[2], eth->enetaddr[3],
eth->enetaddr[4], eth->enetaddr[5]);
dev->phy_id = asix_get_phy_addr(dev);
if (dev->phy_id < 0)
debug("Failed to read phy id\n");
@ -684,5 +702,10 @@ int asix_eth_get_info(struct usb_device *dev, struct ueth_data *ss,
if (asix_basic_reset(ss))
return 0;
/* Get the MAC address */
if (asix_read_mac(eth))
return 0;
debug("MAC %pM\n", eth->enetaddr);
return 1;
}