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| author |   Rafał Miłecki <zajec5@gmail.com> | 2015-08-26 17:53:45 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-08-27 11:28:40 -0700 |
| commit | 538e4563198cd3d1a8e74c47fee3e49dc93e4a95 (patch) | |
| tree | a9c0d8b5114965c5b631018157ca19439468929a | |
| parent | Merge tag 'wireless-drivers-next-for-davem-2015-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next (diff) | |
| download | linux-dev-538e4563198cd3d1a8e74c47fee3e49dc93e4a95.tar.xz linux-dev-538e4563198cd3d1a8e74c47fee3e49dc93e4a95.zip | |
bgmac: support up to 3 cores (devices) on a bus
Broadcom buses may have more than 1 Ethernet device. This is used e.g.
to have few interfaces connected to different switch ports. So far we
saw chipsets with only 2 devices (e.g. BCM4706) but recent ones have
up to 3 (e.g. Netgear R8000 uses 3rd interface for most of switch
traffic, lower interfaces are for some kind of offloading).
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/broadcom/bgmac.c | 28 |
1 files changed, 23 insertions, 5 deletions
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c index 21e3c38c7c75..d043746e2fc5 100644 --- a/drivers/net/ethernet/broadcom/bgmac.c +++ b/drivers/net/ethernet/broadcom/bgmac.c @@ -1549,11 +1549,20 @@ static int bgmac_probe(struct bcma_device *core) struct net_device *net_dev; struct bgmac *bgmac; struct ssb_sprom *sprom = &core->bus->sprom; - u8 *mac = core->core_unit ? sprom->et1mac : sprom->et0mac; + u8 *mac; int err; - /* We don't support 2nd, 3rd, ... units, SPROM has to be adjusted */ - if (core->core_unit > 1) { + switch (core->core_unit) { + case 0: + mac = sprom->et0mac; + break; + case 1: + mac = sprom->et1mac; + break; + case 2: + mac = sprom->et2mac; + break; + default: pr_err("Unsupported core_unit %d\n", core->core_unit); return -ENOTSUPP; } @@ -1588,8 +1597,17 @@ static int bgmac_probe(struct bcma_device *core) } bgmac->cmn = core->bus->drv_gmac_cmn.core; - bgmac->phyaddr = core->core_unit ? sprom->et1phyaddr : - sprom->et0phyaddr; + switch (core->core_unit) { + case 0: + bgmac->phyaddr = sprom->et0phyaddr; + break; + case 1: + bgmac->phyaddr = sprom->et1phyaddr; + break; + case 2: + bgmac->phyaddr = sprom->et2phyaddr; + break; + } bgmac->phyaddr &= BGMAC_PHY_MASK; if (bgmac->phyaddr == BGMAC_PHY_MASK) { bgmac_err(bgmac, "No PHY found\n"); |