From 1676aba5ef7ec8b9d360d33b559abc7db3a5a3a0 Mon Sep 17 00:00:00 2001 From: Jon Mason Date: Fri, 4 Nov 2016 01:11:00 -0400 Subject: [PATCH] net: ethernet: bgmac: device tree phy enablement MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Change the bgmac driver to allow for phy's defined by the device tree Signed-off-by: Jon Mason Acked-by: Rafał Miłecki Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac-bcma.c | 22 ++++++++++++++ .../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 c16ec3a51876..4a4ffc0c4c65 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 be52f270c2c1..46429402dfc1 100644 --- a/drivers/net/ethernet/broadcom/bgmac-platform.c +++ b/drivers/net/ethernet/broadcom/bgmac-platform.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #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 31ca204b38d2..7f66ea763822 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 80836b4c9f38..bfd9f40d71f7 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 */ -- 2.20.1