2015-04-13 17:32:12 +00:00
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From: Felix Fietkau <nbd@openwrt.org>
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Date: Mon, 13 Apr 2015 15:56:26 +0200
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Subject: [PATCH] bgmac: reset all 4 GMAC cores on init
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On a BCM4709 based device, I found that GMAC cores may be enabled at
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probe time, but only become usable after a full reset.
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Disable cores before re-enabling them to ensure that they are properly
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reset.
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Signed-off-by: Felix Fietkau <nbd@openwrt.org>
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---
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--- a/drivers/net/ethernet/broadcom/bgmac.c
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+++ b/drivers/net/ethernet/broadcom/bgmac.c
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2015-04-13 20:08:30 +00:00
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@@ -1605,8 +1605,11 @@ static int bgmac_probe(struct bcma_devic
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2015-04-13 17:32:12 +00:00
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ns_core = bcma_find_core_unit(core->bus,
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BCMA_CORE_MAC_GBIT,
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ns_gmac);
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- if (ns_core && !bcma_core_is_enabled(ns_core))
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- bcma_core_enable(ns_core, 0);
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+ if (!ns_core)
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+ continue;
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+
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+ bcma_core_disable(ns_core, 0);
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+ bcma_core_enable(ns_core, 0);
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}
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}
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