diff options
Diffstat (limited to 'target/linux/generic/patches-4.4/170-net-bgmac-fix-reversed-checks-for-clock-control-flag.patch')
| -rw-r--r-- | target/linux/generic/patches-4.4/170-net-bgmac-fix-reversed-checks-for-clock-control-flag.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.4/170-net-bgmac-fix-reversed-checks-for-clock-control-flag.patch b/target/linux/generic/patches-4.4/170-net-bgmac-fix-reversed-checks-for-clock-control-flag.patch new file mode 100644 index 0000000000..b4c5d7f5e3 --- /dev/null +++ b/target/linux/generic/patches-4.4/170-net-bgmac-fix-reversed-checks-for-clock-control-flag.patch @@ -0,0 +1,32 @@ +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl> +Date: Mon, 7 Nov 2016 13:19:42 +0100 +Subject: [PATCH] net: bgmac: fix reversed checks for clock control flag + +This fixes regression introduced by patch adding feature flags. It was +already reported and patch followed (it got accepted) but it appears it +was incorrect. Instead of fixing reversed condition it broke a good one. + +This patch was verified to actually fix SoC hanges caused by bgmac on +BCM47186B0. + +Fixes: db791eb2970b ("net: ethernet: bgmac: convert to feature flags") +Fixes: 4af1474e6198 ("net: bgmac: Fix errant feature flag check") +Cc: Jon Mason <jon.mason@broadcom.com> +--- + drivers/net/ethernet/broadcom/bgmac.c | 4 ++-- + 1 file changed, 2 insertions(+), 2 deletions(-) + +--- a/drivers/net/ethernet/broadcom/bgmac.c ++++ b/drivers/net/ethernet/broadcom/bgmac.c +@@ -1046,9 +1046,9 @@ static void bgmac_enable(struct bgmac *b + + mode = (bgmac_read(bgmac, BGMAC_DEV_STATUS) & BGMAC_DS_MM_MASK) >> + BGMAC_DS_MM_SHIFT; +- if (!(bgmac->feature_flags & BGMAC_FEAT_CLKCTLST) || mode != 0) ++ if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST || mode != 0) + bgmac_set(bgmac, BCMA_CLKCTLST, BCMA_CLKCTLST_FORCEHT); +- if (bgmac->feature_flags & BGMAC_FEAT_CLKCTLST && mode == 2) ++ if (!(bgmac->feature_flags & BGMAC_FEAT_CLKCTLST) && mode == 2) + bgmac_cco_ctl_maskset(bgmac, 1, ~0, + BGMAC_CHIPCTL_1_RXC_DLL_BYPASS); + |