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- From: Felix Fietkau <nbd@nbd.name>
- Date: Mon, 13 Apr 2015 15:56:26 +0200
- Subject: [PATCH] bgmac: reset all 4 GMAC cores on init
- On a BCM4709 based device, I found that GMAC cores may be enabled at
- probe time, but only become usable after a full reset.
- Disable cores before re-enabling them to ensure that they are properly
- reset.
- Signed-off-by: Felix Fietkau <nbd@nbd.name>
- ---
- --- a/drivers/net/ethernet/broadcom/bgmac.c
- +++ b/drivers/net/ethernet/broadcom/bgmac.c
- @@ -1623,8 +1623,11 @@ static int bgmac_probe(struct bcma_devic
- 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);
- + if (!ns_core)
- + continue;
- +
- + bcma_core_disable(ns_core, 0);
- + bcma_core_enable(ns_core, 0);
- }
- }
-
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