[U-Boot] [PATCH 5/6] net: asix: add read_mac function

Lucas Stach
2012-08-22T10:09:06Z

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>
---
drivers/usb/eth/asix.c | 47 +++++++++++++++++++++++++++++++++++------------
1 Datei ge?ndert, 35 Zeilen hinzugef?gt(+), 12 Zeilen entfernt(-)

diff --git a/drivers/usb/eth/asix.c b/drivers/usb/eth/asix.c
index ce1483e..6ab3e82 100644
--- a/drivers/usb/eth/asix.c
+++ b/drivers/usb/eth/asix.c
@@ -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
@@ -104,6 +105,8 @@
#define FLAG_TYPE_AX88172 (1U << 0)
#define FLAG_TYPE_AX88772 (1U << 1)
#define FLAG_TYPE_AX88772B (1U << 2)
+#define FLAG_EEPROM_MAC (1U << 3) /* initial mac address in eeprom */
+
/* local vars */
static int curr_eth_dev; /* index for name of next device detected */

@@ -337,6 +340,33 @@ 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");
@@ -682,5 +700,10 @@ 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;
}
--
1.7.11.4