diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/bgmac.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 88ec69e86d2f..2cdacb852e81 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -1446,6 +1446,27 @@ static int bgmac_probe(struct bcma_device *core) bgmac_chip_reset(bgmac); + /* For Northstar, we have to take all GMAC core 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; + + /* Northstar has 4 GMAC cores */ + for (ns_gmac = 0; ns_gmac < 4; ns_gmac++) { + /* As northstar requirement, we have to reset all GAMCs + * before accessing one. bgmac_chip_reset() call + * bcma_core_enable() for this core. 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 (ns_core && !bcma_core_is_enabled(ns_core)) + bcma_core_enable(ns_core, 0); + } + } + err = bgmac_dma_alloc(bgmac); if (err) { bgmac_err(bgmac, "Unable to alloc memory for DMA\n"); |