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dm9000: Support MAC address setting through platform data. 

The dm9000 driver reads the chip's MAC address from the attached EEPROM. When
no EEPROM is present, or when the MAC address is invalid, it falls back to
reading the address from the chip.

This patch lets platform code set the desired MAC address through platform
data.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Laurent Pinchart 2008-07-23 17:41:52 +02:00 committed by Jeff Garzik
parent 9a5d341420
commit fe41424855
2 changed files with 6 additions and 0 deletions
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5
drivers/net/dm9000.c
View File

@ -1374,6 +1374,11 @@ dm9000_probe(struct platform_device *pdev)
for (i = 0; i < 6; i += 2)
dm9000_read_eeprom(db, i / 2, ndev->dev_addr+i);
if (!is_valid_ether_addr(ndev->dev_addr) && pdata != NULL) {
mac_src = "platform data";
memcpy(ndev->dev_addr, pdata->dev_addr, 6);
}
if (!is_valid_ether_addr(ndev->dev_addr)) {
/* try reading from mac */

1
include/linux/dm9000.h
View File

@ -27,6 +27,7 @@
struct dm9000_plat_data {
unsigned int flags;
unsigned char dev_addr[6];
/* allow replacement IO routines */