bcm53xx: bgmac: add support for the 3rd core

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@45680 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/bcm53xx/patches-3.18/700-bgmac-add-support-for-the-3rd-bus-core-device.patch b/target/linux/bcm53xx/patches-3.18/700-bgmac-add-support-for-the-3rd-bus-core-device.patch
new file mode 100644 (file)
index 0000000..18ee2f1
--- /dev/null
+++ b/target/linux/bcm53xx/patches-3.18/700-bgmac-add-support-for-the-3rd-bus-core-device.patch
@@ -0,0 +1,68 @@
+From f5d5afc0b1402aae0f6a2350e43241603dbaff1e Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Wed, 13 May 2015 10:46:47 +0200
+Subject: [PATCH] bgmac: add support for the 3rd bus core (device)
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+So far we were supporting up to 2 cores but recent devices (e.g. Netgear
+R8000) may use 3rd as well. Lower ones (1st, 2nd) are usually used for
+some offloading then.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 28 +++++++++++++++++++++++-----
+ 1 file changed, 23 insertions(+), 5 deletions(-)
+
+diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
+index f66c416..0614cae 100644
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -1561,11 +1561,20 @@ static int bgmac_probe(struct bcma_device *core)
+       struct net_device *net_dev;
+       struct bgmac *bgmac;
+       struct ssb_sprom *sprom = &core->bus->sprom;
+-      u8 *mac = core->core_unit ? sprom->et1mac : sprom->et0mac;
++      u8 *mac;
+       int err;
+ 
+-      /* We don't support 2nd, 3rd, ... units, SPROM has to be adjusted */
+-      if (core->core_unit > 1) {
++      switch (core->core_unit) {
++      case 0:
++              mac = sprom->et0mac;
++              break;
++      case 1:
++              mac = sprom->et1mac;
++              break;
++      case 2:
++              mac = sprom->et2mac;
++              break;
++      default:
+               pr_err("Unsupported core_unit %d\n", core->core_unit);
+               return -ENOTSUPP;
+       }
+@@ -1600,8 +1609,17 @@ static int bgmac_probe(struct bcma_device *core)
+       }
+       bgmac->cmn = core->bus->drv_gmac_cmn.core;
+ 
+-      bgmac->phyaddr = core->core_unit ? sprom->et1phyaddr :
+-                       sprom->et0phyaddr;
++      switch (core->core_unit) {
++      case 0:
++              bgmac->phyaddr = sprom->et0phyaddr;
++              break;
++      case 1:
++              bgmac->phyaddr = sprom->et1phyaddr;
++              break;
++      case 2:
++              bgmac->phyaddr = sprom->et2phyaddr;
++              break;
++      }
+       bgmac->phyaddr &= BGMAC_PHY_MASK;
+       if (bgmac->phyaddr == BGMAC_PHY_MASK) {
+               bgmac_err(bgmac, "No PHY found\n");
+-- 
+1.8.4.5
+