From 8e6f31baba7e2c13ab7e954fe6179420a7545a8b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Tue, 31 Jan 2017 19:37:56 +0100 Subject: [PATCH 3/3] net: bgmac: use PHY subsystem for initializing PHY MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This adds support for using bgmac with PHYs supported by standalone PHY drivers. Having any PHY initialization in bgmac is hacky and shouldn't be extended but rather removed if anyone has hardware to test it. Signed-off-by: Rafał Miłecki Reviewed-by: Florian Fainelli Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c +++ b/drivers/net/ethernet/broadcom/bgmac-bcma-mdio.c @@ -132,6 +132,10 @@ static void bcma_mdio_phy_init(struct bg struct bcma_chipinfo *ci = &bgmac->bcma.core->bus->chipinfo; u8 i; + /* For some legacy hardware we do chipset-based PHY initialization here + * without even detecting PHY ID. It's hacky and should be cleaned as + * soon as someone can test it. + */ if (ci->id == BCMA_CHIP_ID_BCM5356) { for (i = 0; i < 5; i++) { bcma_mdio_phy_write(bgmac, i, 0x1f, 0x008b); @@ -140,6 +144,7 @@ static void bcma_mdio_phy_init(struct bg bcma_mdio_phy_write(bgmac, i, 0x12, 0x2aaa); bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b); } + return; } if ((ci->id == BCMA_CHIP_ID_BCM5357 && ci->pkg != 10) || (ci->id == BCMA_CHIP_ID_BCM4749 && ci->pkg != 10) || @@ -161,7 +166,12 @@ static void bcma_mdio_phy_init(struct bg bcma_mdio_phy_write(bgmac, i, 0x17, 0x9273); bcma_mdio_phy_write(bgmac, i, 0x1f, 0x000b); } + return; } + + /* For all other hw do initialization using PHY subsystem. */ + if (bgmac->net_dev && bgmac->net_dev->phydev) + phy_init_hw(bgmac->net_dev->phydev); } /* http://bcm-v4.sipsolutions.net/mac-gbit/gmac/chipphyreset */