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Ethernet: write MAC address to hardware when it's changed 

Instead of writing the MAC address into the hardware on device open time
write it to the hardware when the user changes the parameter. This
way a user can change the MAC address in the hardware without actually
using the device. This helps Linux Network drivers which expect a valid
MAC address on startup.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2008-09-30 10:48:40 +02:00
parent ae3f56c84a
commit 20ec9ba02d
1 changed files with 5 additions and 7 deletions
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12
net/eth.c
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@ -49,10 +49,6 @@ int eth_open(void)
if (!eth_current)
return 0;
string_to_ethaddr(dev_get_param(eth_current->dev, "ethaddr"), mac);
eth_current->set_ethaddr(eth_current, mac);
eth_current->open(eth_current);
return 0;
@ -86,6 +82,7 @@ int eth_rx(void)
static int eth_set_ethaddr(struct device_d *dev, struct param_d *param, const char *val)
{
struct eth_device *edev = dev->type_data;
char ethaddr[sizeof("xx:xx:xx:xx:xx:xx")];
if (string_to_ethaddr(val, ethaddr) < 0)
@ -94,6 +91,8 @@ static int eth_set_ethaddr(struct device_d *dev, struct param_d *param, const ch
free(param->value);
param->value = strdup(val);
edev->set_ethaddr(edev, ethaddr);
return 0;
}
@ -137,15 +136,14 @@ int eth_register(struct eth_device *edev)
dev_add_param(dev, &edev->param_netmask);
dev_add_param(dev, &edev->param_serverip);
edev->init(edev);
if (edev->get_ethaddr(edev, ethaddr) == 0) {
ethaddr_to_string(ethaddr, ethaddr_str);
printf("got MAC address from EEPROM: %s\n",ethaddr_str);
dev_set_param(dev, "ethaddr", ethaddr_str);
// memcpy(edev->enetaddr, ethaddr, 6);
}
edev->init(edev);
eth_current = edev;
return 0;