}
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
+@@ -1488,6 +1512,25 @@ static int bgmac_probe(struct bcma_devic
+ goto err_netdev_free;
+ }
+
++ /* Northstar, take all GMAC cores out of reset */
++ if (core->id.id == BCMA_CHIP_ID_BCM4707 ||
++ core->id.id == BCMA_CHIP_ID_BCM53018) {
++ struct bcma_device *ns_core;
++ int ns_gmac;
++
++ for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) {
++ /* As northstar requirement, we have to reset all GAMCs before
++ * accessing them. et_probe() call pci_enable_device() for etx
++ * and do si_core_reset for GAMCx only. Then the other three
++ * GAMCs didn't reset. We do it here.
++ */
++ ns_core = bcma_find_core_unit(core->bus, BCMA_CORE_MAC_GBIT, ns_gmac);
++ if (!bcma_core_is_enabled(ns_core)) {
++ bcma_core_enable(ns_core, 0);
++ }
++ }
++ }
++
+ bgmac_chip_reset(bgmac);
+
+ err = bgmac_dma_alloc(bgmac);
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -185,6 +185,7 @@