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e2a65f4aa5
It's supposed to significantly improve performance but doesn't seem to affect Northstar unfortunately. It seems only some other platforms were limited because of this DMA setup mistake. Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
33 lines
1.4 KiB
Diff
33 lines
1.4 KiB
Diff
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
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Date: Mon, 7 Nov 2016 13:19:42 +0100
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Subject: [PATCH] net: bgmac: fix reversed checks for clock control flag
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This fixes regression introduced by patch adding feature flags. It was
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already reported and patch followed (it got accepted) but it appears it
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was incorrect. Instead of fixing reversed condition it broke a good one.
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This patch was verified to actually fix SoC hanges caused by bgmac on
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BCM47186B0.
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Fixes: db791eb2970b ("net: ethernet: bgmac: convert to feature flags")
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Fixes: 4af1474e6198 ("net: bgmac: Fix errant feature flag check")
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Cc: Jon Mason <jon.mason@broadcom.com>
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---
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drivers/net/ethernet/broadcom/bgmac.c | 4 ++--
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1 file changed, 2 insertions(+), 2 deletions(-)
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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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@@ -1049,9 +1049,9 @@ static void bgmac_enable(struct bgmac *b
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mode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & BGMAC_DS_MM_MASK) >>
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BGMAC_DS_MM_SHIFT;
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- if (!(bgmac->feature_flags & BGMAC_FEAT_CLKCTLST) || mode != 0)
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+ if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST || mode != 0)
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bgmac_set(bgmac, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT);
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- if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST && mode == 2)
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+ if (!(bgmac->feature_flags & BGMAC_FEAT_CLKCTLST) && mode == 2)
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bgmac_cco_ctl_maskset(bgmac, 1, ~0,
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BGMAC_CHIPCTL_1_RXC_DLL_BYPASS);
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