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[smsc95xx] Fetch MAC from device tree for Raspberry Pi 

Signed-off-by: Michael Brown <mcb30@ipxe.org>
pull/94/head
Michael Brown 2019-07-19 17:43:39 +01:00
parent 6dde0f60bf
commit 83e0f9f377
1 changed files with 31 additions and 0 deletions
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31
src/drivers/net/smsc95xx.c
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@ -33,6 +33,7 @@ FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
#include <ipxe/profile.h>
#include <ipxe/base16.h>
#include <ipxe/smbios.h>
#include <ipxe/fdt.h>
#include "smsc95xx.h"
/** @file
@ -158,6 +159,32 @@ static int smsc95xx_vm3_fetch_mac ( struct smscusb_device *smscusb ) {
return 0;
}
/**
* Fetch MAC address from device tree
*
* @v smscusb SMSC USB device
* @ret rc Return status code
*/
static int smsc95xx_fdt_fetch_mac ( struct smscusb_device *smscusb ) {
struct net_device *netdev = smscusb->netdev;
unsigned int offset;
int rc;
/* Look for "ethernet[0]" alias */
if ( ( rc = fdt_alias ( "ethernet", &offset ) != 0 ) &&
( rc = fdt_alias ( "ethernet0", &offset ) != 0 ) ) {
return rc;
}
/* Fetch MAC address */
if ( ( rc = fdt_mac ( offset, netdev ) ) != 0 )
return rc;
DBGC ( smscusb, "SMSC95XX %p using FDT MAC %s\n",
smscusb, eth_ntoa ( netdev->hw_addr ) );
return 0;
}
/**
* Fetch MAC address
*
@ -173,6 +200,10 @@ static int smsc95xx_fetch_mac ( struct smscusb_device *smscusb ) {
SMSC95XX_E2P_BASE ) ) == 0 )
return 0;
/* Read MAC address from device tree */
if ( ( rc = smsc95xx_fdt_fetch_mac ( smscusb ) ) == 0 )
return 0;
/* Construct MAC address for Honeywell VM3, if applicable */
if ( ( rc = smsc95xx_vm3_fetch_mac ( smscusb ) ) == 0 )
return 0;