[PATCH v6 5/7] net: ethernet: bgmac: device tree phy enablement
From: Jon Mason
Date: Fri Nov 04 2016 - 01:13:25 EST
Change the bgmac driver to allow for phy's defined by the device tree
Signed-off-by: Jon Mason <jon.mason@xxxxxxxxxxxx>
---
drivers/net/ethernet/broadcom/bgmac-bcma.c | 22 +++++++++++++++++++
drivers/net/ethernet/broadcom/bgmac-platform.c | 22 ++++++++++++++++++-
drivers/net/ethernet/broadcom/bgmac.c | 29 +++++---------------------
drivers/net/ethernet/broadcom/bgmac.h | 8 +++++++
4 files changed, 56 insertions(+), 25 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/bgmac-bcma.c b/drivers/net/ethernet/broadcom/bgmac-bcma.c
index c16ec3a..4a4ffc0 100644
--- a/drivers/net/ethernet/broadcom/bgmac-bcma.c
+++ b/drivers/net/ethernet/broadcom/bgmac-bcma.c
@@ -80,6 +80,24 @@ static void bcma_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset, u32 mask,
bcma_maskset32(bgmac->bcma.cmn, offset, mask, set);
}
+static int bcma_phy_connect(struct bgmac *bgmac)
+{
+ struct phy_device *phy_dev;
+ char bus_id[MII_BUS_ID_SIZE + 3];
+
+ /* Connect to the PHY */
+ snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, bgmac->mii_bus->id,
+ bgmac->phyaddr);
+ phy_dev = phy_connect(bgmac->net_dev, bus_id, bgmac_adjust_link,
+ PHY_INTERFACE_MODE_MII);
+ if (IS_ERR(phy_dev)) {
+ dev_err(bgmac->dev, "PHY connection failed\n");
+ return PTR_ERR(phy_dev);
+ }
+
+ return 0;
+}
+
static const struct bcma_device_id bgmac_bcma_tbl[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT,
BCMA_ANY_REV, BCMA_ANY_CLASS),
@@ -275,6 +293,10 @@ static int bgmac_probe(struct bcma_device *core)
bgmac->cco_ctl_maskset = bcma_bgmac_cco_ctl_maskset;
bgmac->get_bus_clock = bcma_bgmac_get_bus_clock;
bgmac->cmn_maskset32 = bcma_bgmac_cmn_maskset32;
+ if (bgmac->mii_bus)
+ bgmac->phy_connect = bcma_phy_connect;
+ else
+ bgmac->phy_connect = bgmac_phy_connect_direct;
err = bgmac_enet_probe(bgmac);
if (err)
diff --git a/drivers/net/ethernet/broadcom/bgmac-platform.c b/drivers/net/ethernet/broadcom/bgmac-platform.c
index be52f27..4642940 100644
--- a/drivers/net/ethernet/broadcom/bgmac-platform.c
+++ b/drivers/net/ethernet/broadcom/bgmac-platform.c
@@ -16,6 +16,7 @@
#include <linux/bcma/bcma.h>
#include <linux/etherdevice.h>
#include <linux/of_address.h>
+#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include "bgmac.h"
@@ -86,6 +87,20 @@ static void platform_bgmac_cmn_maskset32(struct bgmac *bgmac, u16 offset,
WARN_ON(1);
}
+static int platform_phy_connect(struct bgmac *bgmac)
+{
+ struct phy_device *phy_dev;
+
+ phy_dev = of_phy_get_and_connect(bgmac->net_dev, bgmac->dev->of_node,
+ bgmac_adjust_link);
+ if (!phy_dev) {
+ dev_err(bgmac->dev, "PHY connection failed\n");
+ return -ENODEV;
+ }
+
+ return 0;
+}
+
static int bgmac_probe(struct platform_device *pdev)
{
struct device_node *np = pdev->dev.of_node;
@@ -102,7 +117,6 @@ static int bgmac_probe(struct platform_device *pdev)
/* Set the features of the 4707 family */
bgmac->feature_flags |= BGMAC_FEAT_CLKCTLST;
bgmac->feature_flags |= BGMAC_FEAT_NO_RESET;
- bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
bgmac->feature_flags |= BGMAC_FEAT_CMDCFG_SR_REV4;
bgmac->feature_flags |= BGMAC_FEAT_TX_MASK_SETUP;
bgmac->feature_flags |= BGMAC_FEAT_RX_MASK_SETUP;
@@ -151,6 +165,12 @@ static int bgmac_probe(struct platform_device *pdev)
bgmac->cco_ctl_maskset = platform_bgmac_cco_ctl_maskset;
bgmac->get_bus_clock = platform_bgmac_get_bus_clock;
bgmac->cmn_maskset32 = platform_bgmac_cmn_maskset32;
+ if (of_parse_phandle(np, "phy-handle", 0)) {
+ bgmac->phy_connect = platform_phy_connect;
+ } else {
+ bgmac->phy_connect = bgmac_phy_connect_direct;
+ bgmac->feature_flags |= BGMAC_FEAT_FORCE_SPEED_2500;
+ }
return bgmac_enet_probe(bgmac);
}
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 31ca204..7f66ea7 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -1388,7 +1388,7 @@ static const struct ethtool_ops bgmac_ethtool_ops = {
* MII
**************************************************/
-static void bgmac_adjust_link(struct net_device *net_dev)
+void bgmac_adjust_link(struct net_device *net_dev)
{
struct bgmac *bgmac = netdev_priv(net_dev);
struct phy_device *phy_dev = net_dev->phydev;
@@ -1411,8 +1411,9 @@ static void bgmac_adjust_link(struct net_device *net_dev)
phy_print_status(phy_dev);
}
}
+EXPORT_SYMBOL_GPL(bgmac_adjust_link);
-static int bgmac_phy_connect_direct(struct bgmac *bgmac)
+int bgmac_phy_connect_direct(struct bgmac *bgmac)
{
struct fixed_phy_status fphy_status = {
.link = 1,
@@ -1437,24 +1438,7 @@ static int bgmac_phy_connect_direct(struct bgmac *bgmac)
return err;
}
-
-static int bgmac_phy_connect(struct bgmac *bgmac)
-{
- struct phy_device *phy_dev;
- char bus_id[MII_BUS_ID_SIZE + 3];
-
- /* Connect to the PHY */
- snprintf(bus_id, sizeof(bus_id), PHY_ID_FMT, bgmac->mii_bus->id,
- bgmac->phyaddr);
- phy_dev = phy_connect(bgmac->net_dev, bus_id, &bgmac_adjust_link,
- PHY_INTERFACE_MODE_MII);
- if (IS_ERR(phy_dev)) {
- dev_err(bgmac->dev, "PHY connection failed\n");
- return PTR_ERR(phy_dev);
- }
-
- return 0;
-}
+EXPORT_SYMBOL_GPL(bgmac_phy_connect_direct);
int bgmac_enet_probe(struct bgmac *info)
{
@@ -1507,10 +1491,7 @@ int bgmac_enet_probe(struct bgmac *info)
netif_napi_add(net_dev, &bgmac->napi, bgmac_poll, BGMAC_WEIGHT);
- if (!bgmac->mii_bus)
- err = bgmac_phy_connect_direct(bgmac);
- else
- err = bgmac_phy_connect(bgmac);
+ err = bgmac_phy_connect(bgmac);
if (err) {
dev_err(bgmac->dev, "Cannot connect to phy\n");
goto err_dma_free;
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 80836b4..bfd9f40 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -513,10 +513,13 @@ struct bgmac {
u32 (*get_bus_clock)(struct bgmac *bgmac);
void (*cmn_maskset32)(struct bgmac *bgmac, u16 offset, u32 mask,
u32 set);
+ int (*phy_connect)(struct bgmac *bgmac);
};
int bgmac_enet_probe(struct bgmac *info);
void bgmac_enet_remove(struct bgmac *bgmac);
+void bgmac_adjust_link(struct net_device *net_dev);
+int bgmac_phy_connect_direct(struct bgmac *bgmac);
struct mii_bus *bcma_mdio_mii_register(struct bcma_device *core, u8 phyaddr);
void bcma_mdio_mii_unregister(struct mii_bus *mii_bus);
@@ -583,4 +586,9 @@ static inline void bgmac_set(struct bgmac *bgmac, u16 offset, u32 set)
{
bgmac_maskset(bgmac, offset, ~0, set);
}
+
+static inline int bgmac_phy_connect(struct bgmac *bgmac)
+{
+ return bgmac->phy_connect(bgmac);
+}
#endif /* _BGMAC_H */
--
2.7.4