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authorRafał Miłecki <zajec5@gmail.com>2015-04-23 19:11:11 +0000
committerRafał Miłecki <zajec5@gmail.com>2015-04-23 19:11:11 +0000
commitc67411718f45a80b0dc9e64d9eba3f1772841a4e (patch)
tree0edea320b1a960838f0313f9f39c66b0f5a6edce /target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch
parent264aa9886d646c0ba76ffe27bfc485ba2be0a834 (diff)
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kernel: backport rest of bgmac patches to 4.0
Signed-off-by: Rafał Miłecki <zajec5@gmail.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45573 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch')
-rw-r--r--target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch b/target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch
new file mode 100644
index 0000000000..2a913a60e7
--- /dev/null
+++ b/target/linux/generic/patches-4.0/072-14-bgmac-reset-all-4-GMAC-cores-on-init.patch
@@ -0,0 +1,28 @@
+From: Felix Fietkau <nbd@openwrt.org>
+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@openwrt.org>
+---
+
+--- 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);
+ }
+ }
+