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net: ethernet: bgmac: add NS2 support

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Add support for the variant of amac hardware present in the Broadcom
Northstar2 based SoCs.  Northstar2 requires an additional register to be
configured with the port speed/duplexity (NICPM).  This can be added to
the link callback to hide it from the instances that do not use this.
Also, clearing of the pending interrupts on init is required due to
observed issues on some platforms.

Signed-off-by: Jon Mason <jon.mason@broadcom.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Mason
2016-11-04 01:11:01 -04:00
committed by David S. Miller
parent 1676aba5ef
commit dd5c5d037f
3 changed files with 58 additions and 2 deletions
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3
drivers/net/ethernet/broadcom/bgmac.c
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@@ -1082,6 +1082,9 @@ static void bgmac_enable(struct bgmac *bgmac)
/* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipinit */
static void bgmac_chip_init(struct bgmac *bgmac)
{
/* Clear any erroneously pending interrupts */
bgmac_write(bgmac, BGMAC_INT_STATUS, ~0);
/* 1 interrupt per received frame */
bgmac_write(bgmac, BGMAC_INT_RECV_LAZY, 1 << BGMAC_IRL_FC_SHIFT);