kernel: support bgmac on BCM47094

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
SVN-Revision: 48564

diff --git a/target/linux/generic/patches-4.4/770-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch b/target/linux/generic/patches-4.4/770-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch
new file mode 100644 (file)
index 0000000..e5d439e
--- /dev/null
+++ b/target/linux/generic/patches-4.4/770-bgmac-add-helper-checking-for-BCM4707-BCM53018-chip-.patch
@@ -0,0 +1,99 @@
+From 1b49522dc7154751401512977d07ad01e5182c47 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sat, 30 Jan 2016 00:35:37 +0100
+Subject: [PATCH] bgmac: add helper checking for BCM4707 / BCM53018 chip id
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Chipsets with BCM4707 / BCM53018 ID require special handling at a few
+places in the code. It's likely there will be more IDs to check in the
+future. To simplify it add this trivial helper.
+
+Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 29 ++++++++++++++++-------------
+ 1 file changed, 16 insertions(+), 13 deletions(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -26,6 +26,17 @@ static const struct bcma_device_id bgmac
+ };
+ MODULE_DEVICE_TABLE(bcma, bgmac_bcma_tbl);
+ 
++static inline bool bgmac_is_bcm4707_family(struct bgmac *bgmac)
++{
++      switch (bgmac->core->bus->chipinfo.id) {
++      case BCMA_CHIP_ID_BCM4707:
++      case BCMA_CHIP_ID_BCM53018:
++              return true;
++      default:
++              return false;
++      }
++}
++
+ static bool bgmac_wait_value(struct bcma_device *core, u16 reg, u32 mask,
+                            u32 value, int timeout)
+ {
+@@ -982,11 +993,9 @@ static void bgmac_mac_speed(struct bgmac
+ static void bgmac_miiconfig(struct bgmac *bgmac)
+ {
+       struct bcma_device *core = bgmac->core;
+-      struct bcma_chipinfo *ci = &core->bus->chipinfo;
+       u8 imode;
+ 
+-      if (ci->id == BCMA_CHIP_ID_BCM4707 ||
+-          ci->id == BCMA_CHIP_ID_BCM53018) {
++      if (bgmac_is_bcm4707_family(bgmac)) {
+               bcma_awrite32(core, BCMA_IOCTL,
+                             bcma_aread32(core, BCMA_IOCTL) | 0x40 |
+                             BGMAC_BCMA_IOCTL_SW_CLKEN);
+@@ -1050,9 +1059,7 @@ static void bgmac_chip_reset(struct bgma
+       }
+ 
+       /* Request Misc PLL for corerev > 2 */
+-      if (core->id.rev > 2 &&
+-          ci->id != BCMA_CHIP_ID_BCM4707 &&
+-          ci->id != BCMA_CHIP_ID_BCM53018) {
++      if (core->id.rev > 2 && !bgmac_is_bcm4707_family(bgmac)) {
+               bgmac_set(bgmac, BCMA_CLKCTLST,
+                         BGMAC_BCMA_CLKCTLST_MISC_PLL_REQ);
+               bgmac_wait_value(bgmac->core, BCMA_CLKCTLST,
+@@ -1188,8 +1195,7 @@ static void bgmac_enable(struct bgmac *b
+               break;
+       }
+ 
+-      if (ci->id != BCMA_CHIP_ID_BCM4707 &&
+-          ci->id != BCMA_CHIP_ID_BCM53018) {
++      if (!bgmac_is_bcm4707_family(bgmac)) {
+               rxq_ctl = bgmac_read(bgmac, BGMAC_RXQ_CTL);
+               rxq_ctl &= ~BGMAC_RXQ_CTL_MDP_MASK;
+               bp_clk = bcma_pmu_get_bus_clock(&bgmac->core->bus->drv_cc) /
+@@ -1473,8 +1479,7 @@ static int bgmac_mii_register(struct bgm
+       char bus_id[MII_BUS_ID_SIZE + 3];
+       int i, err = 0;
+ 
+-      if (ci->id == BCMA_CHIP_ID_BCM4707 ||
+-          ci->id == BCMA_CHIP_ID_BCM53018)
++      if (bgmac_is_bcm4707_family(bgmac))
+               return bgmac_fixed_phy_register(bgmac);
+ 
+       mii_bus = mdiobus_alloc();
+@@ -1545,7 +1550,6 @@ static void bgmac_mii_unregister(struct
+ /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipattach */
+ static int bgmac_probe(struct bcma_device *core)
+ {
+-      struct bcma_chipinfo *ci = &core->bus->chipinfo;
+       struct net_device *net_dev;
+       struct bgmac *bgmac;
+       struct ssb_sprom *sprom = &core->bus->sprom;
+@@ -1626,8 +1630,7 @@ static int bgmac_probe(struct bcma_devic
+       bgmac_chip_reset(bgmac);
+ 
+       /* For Northstar, we have to take all GMAC core out of reset */
+-      if (ci->id == BCMA_CHIP_ID_BCM4707 ||
+-          ci->id == BCMA_CHIP_ID_BCM53018) {
++      if (bgmac_is_bcm4707_family(bgmac)) {
+               struct bcma_device *ns_core;
+               int ns_gmac;
+ 

diff --git a/target/linux/generic/patches-4.4/771-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch b/target/linux/generic/patches-4.4/771-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch
new file mode 100644 (file)
index 0000000..f359220
--- /dev/null
+++ b/target/linux/generic/patches-4.4/771-bgmac-support-Ethernet-device-on-BCM47094-SoC.patch
@@ -0,0 +1,30 @@
+From 64a1905f49391e41e660dd5d079e2c61d5344920 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
+Date: Sat, 30 Jan 2016 14:05:37 +0100
+Subject: [PATCH] bgmac: support Ethernet device on BCM47094 SoC
+
+It needs very similar workarounds to the one on BCM4707.
+---
+ drivers/net/ethernet/broadcom/bgmac.c | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/broadcom/bgmac.c
++++ b/drivers/net/ethernet/broadcom/bgmac.c
+@@ -30,6 +30,7 @@ static inline bool bgmac_is_bcm4707_fami
+ {
+       switch (bgmac->core->bus->chipinfo.id) {
+       case BCMA_CHIP_ID_BCM4707:
++      case BCMA_CHIP_ID_BCM47094:
+       case BCMA_CHIP_ID_BCM53018:
+               return true;
+       default:
+@@ -1048,7 +1049,8 @@ static void bgmac_chip_reset(struct bgma
+               iost &= ~BGMAC_BCMA_IOST_ATTACHED;
+ 
+       /* 3GMAC: for BCM4707, only do core reset at bgmac_probe() */
+-      if (ci->id != BCMA_CHIP_ID_BCM4707) {
++      if (ci->id != BCMA_CHIP_ID_BCM4707 &&
++          ci->id != BCMA_CHIP_ID_BCM47094) {
+               flags = 0;
+               if (iost & BGMAC_BCMA_IOST_ATTACHED) {
+                       flags = BGMAC_BCMA_IOCTL_SW_CLKEN;

diff --git a/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch b/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
index f5bd743bba1ac3798e8acc3d9dca7e9bfbefd2d8..29bbf1ae7bb5a1235caecbe1e02fa6cefe7aa7db 100644 (file)
--- a/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
+++ b/target/linux/generic/patches-4.4/773-bgmac-add-srab-switch.patch
@@ -12,7 +12,7 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  #include <linux/bcm47xx_nvram.h>
  
  static const struct bcma_device_id bgmac_bcma_tbl[] = {
-@@ -1538,6 +1539,17 @@ static void bgmac_mii_unregister(struct
+@@ -1545,6 +1546,17 @@ static void bgmac_mii_unregister(struct
        mdiobus_free(mii_bus);
  }
  
@@ -30,13 +30,11 @@ Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  /**************************************************
   * BCMA bus ops
   **************************************************/
-@@ -1682,6 +1694,16 @@ static int bgmac_probe(struct bcma_devic
+@@ -1687,6 +1699,14 @@ static int bgmac_probe(struct bcma_devic
        net_dev->hw_features = net_dev->features;
        net_dev->vlan_features = net_dev->features;
  
-+      if ((ci->id == BCMA_CHIP_ID_BCM4707 ||
-+           ci->id == BCMA_CHIP_ID_BCM53018) &&
-+          !bgmac_b53_pdata.regs) {
++      if (bgmac_is_bcm4707_family(bgmac) && !bgmac_b53_pdata.regs) {
 +              bgmac_b53_pdata.regs = ioremap_nocache(0x18007000, 0x1000);
 +
 +              err = platform_device_register(&bgmac_b53_dev);
@@ -47,7 +45,7 @@ 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");
-@@ -1708,6 +1730,10 @@ static void bgmac_remove(struct bcma_dev
+@@ -1713,6 +1733,10 @@ static void bgmac_remove(struct bcma_dev
  {
        struct bgmac *bgmac = bcma_get_drvdata(core);