From 6bc743ef6ff69ff6dbd89f1d85a0d6432dd84a2d Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 13 Apr 2015 17:32:12 +0000
Subject: [PATCH] kernel: add bgmac fixes for bcm53xx (fix ethernet bringup on
a bcm4709 based device)
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
SVN-Revision: 45417
---
...fix-MAC-soft-reset-bit-for-corerev-4.patch | 24 ++++++++++++++++
...bgmac-reset-all-4-GMAC-cores-on-init.patch | 28 +++++++++++++++++++
.../773-bgmac-add-srab-switch.patch | 4 +--
3 files changed, 54 insertions(+), 2 deletions(-)
create mode 100644 target/linux/generic/patches-3.18/077-13-bgmac-fix-MAC-soft-reset-bit-for-corerev-4.patch
create mode 100644 target/linux/generic/patches-3.18/077-14-bgmac-reset-all-4-GMAC-cores-on-init.patch
diff --git a/target/linux/generic/patches-3.18/077-13-bgmac-fix-MAC-soft-reset-bit-for-corerev-4.patch b/target/linux/generic/patches-3.18/077-13-bgmac-fix-MAC-soft-reset-bit-for-corerev-4.patch
new file mode 100644
index 0000000000..a3d9fd6cd9
--- /dev/null
+++ b/target/linux/generic/patches-3.18/077-13-bgmac-fix-MAC-soft-reset-bit-for-corerev-4.patch
@@ -0,0 +1,24 @@
+From: Felix Fietkau <nbd@openwrt.org>
+Date: Mon, 13 Apr 2015 15:54:04 +0200
+Subject: [PATCH] bgmac: fix MAC soft-reset bit for corerev > 4
+
+Only core revisions older than 4 use BGMAC_CMDCFG_SR_REV0
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+---
+
+--- a/drivers/net/ethernet/broadcom/bgmac.h
++++ b/drivers/net/ethernet/broadcom/bgmac.h
+@@ -198,9 +198,9 @@
+ #define BGMAC_CMDCFG_TAI 0x00000200
+ #define BGMAC_CMDCFG_HD 0x00000400 /* Set if in half duplex mode */
+ #define BGMAC_CMDCFG_HD_SHIFT 10
+-#define BGMAC_CMDCFG_SR_REV0 0x00000800 /* Set to reset mode, for other revs */
+-#define BGMAC_CMDCFG_SR_REV4 0x00002000 /* Set to reset mode, only for core rev 4 */
+-#define BGMAC_CMDCFG_SR(rev) ((rev == 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REV0)
++#define BGMAC_CMDCFG_SR_REV0 0x00000800 /* Set to reset mode, for core rev 0-3 */
++#define BGMAC_CMDCFG_SR_REV4 0x00002000 /* Set to reset mode, for core rev >= 4 */
++#define BGMAC_CMDCFG_SR(rev) ((rev >= 4) ? BGMAC_CMDCFG_SR_REV4 : BGMAC_CMDCFG_SR_REV0)
+ #define BGMAC_CMDCFG_ML 0x00008000 /* Set to activate mac loopback mode */
+ #define BGMAC_CMDCFG_AE 0x00400000
+ #define BGMAC_CMDCFG_CFE 0x00800000
diff --git a/target/linux/generic/patches-3.18/077-14-bgmac-reset-all-4-GMAC-cores-on-init.patch b/target/linux/generic/patches-3.18/077-14-bgmac-reset-all-4-GMAC-cores-on-init.patch
new file mode 100644
index 0000000000..d1b63f155b
--- /dev/null
+++ b/target/linux/generic/patches-3.18/077-14-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
+@@ -1609,8 +1609,11 @@ 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);
+ }
+ }
+
diff --git a/target/linux/generic/patches-3.18/773-bgmac-add-srab-switch.patch b/target/linux/generic/patches-3.18/773-bgmac-add-srab-switch.patch
index 2219f85f3c..a18be96417 100644
--- a/target/linux/generic/patches-3.18/773-bgmac-add-srab-switch.patch
+++ b/target/linux/generic/patches-3.18/773-bgmac-add-srab-switch.patch
@@ -30,7 +30,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
/**************************************************
* BCMA bus ops
**************************************************/
-@@ -1647,6 +1659,16 @@ static int bgmac_probe(struct bcma_devic
+@@ -1650,6 +1662,16 @@ static int bgmac_probe(struct bcma_devic
net_dev->hw_features = net_dev->features;
net_dev->vlan_features = net_dev->features;
@@ -47,7 +47,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
err = register_netdev(bgmac->net_dev);
if (err) {
bgmac_err(bgmac, "Cannot register net device\n");
-@@ -1673,6 +1695,10 @@ static void bgmac_remove(struct bcma_dev
+@@ -1676,6 +1698,10 @@ static void bgmac_remove(struct bcma_dev
{
struct bgmac *bgmac = bcma_get_drvdata(core);
--
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