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

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Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 45417
This commit is contained in:
Felix Fietkau 2015-04-13 17:32:12 +00:00
parent 1f70f452cc
commit 6bc743ef6f
3 changed files with 54 additions and 2 deletions
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24
target/linux/generic/patches-3.18/077-13-bgmac-fix-MAC-soft-reset-bit-for-corerev-4.patch Normal file
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@ -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

28
target/linux/generic/patches-3.18/077-14-bgmac-reset-all-4-GMAC-cores-on-init.patch Normal file
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@ -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);
}
}

4
target/linux/generic/patches-3.18/773-bgmac-add-srab-switch.patch
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@ -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);