kernel: add bgmac fixes for bcm53xx (fix ethernet bringup on a bcm4709 based device)

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45417 3c298f89-4303-0410-b956-a3cf2f4a3e73

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 (file)
index 0000000..a3d9fd6
--- /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 (file)
index 0000000..d1b63f1
--- /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 2219f85..a18be96 100644 (file)
--- 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);