From 8c2a7a5d2c6ec6c2a95fe22a6d3af1db07840da8 Mon Sep 17 00:00:00 2001 From: Giuseppe CAVALLARO Date: Tue, 14 Oct 2014 08:11:54 +0200 Subject: [PATCH] stmmac: platform: fix FIXED_PHY support. On several STi platforms: e.g. stihxxx-b2120 an Ethernet switch is embedded and connected to the stmmac via RGMII mode. So this is managed by using the FIXED_PHY. In that case, the support in the platform needs to be fixed to allow the stmmac to dialog with the switch via fixed-link by using phy_bus_name property. Signed-off-by: Giuseppe Cavallaro Signed-off-by: David S. Miller --- drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c index 6521717..4894500 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c @@ -160,11 +160,16 @@ static int stmmac_probe_config_dt(struct platform_device *pdev, if (of_property_read_u32(np, "snps,phy-addr", &plat->phy_addr) == 0) dev_warn(&pdev->dev, "snps,phy-addr property is deprecated\n"); - plat->mdio_bus_data = devm_kzalloc(&pdev->dev, - sizeof(struct stmmac_mdio_bus_data), - GFP_KERNEL); - - plat->force_sf_dma_mode = of_property_read_bool(np, "snps,force_sf_dma_mode"); + if (plat->phy_bus_name) + plat->mdio_bus_data = NULL; + else + plat->mdio_bus_data = + devm_kzalloc(&pdev->dev, + sizeof(struct stmmac_mdio_bus_data), + GFP_KERNEL); + + plat->force_sf_dma_mode = + of_property_read_bool(np, "snps,force_sf_dma_mode"); /* Set the maxmtu to a default of JUMBO_LEN in case the * parameter is not present in the device tree. -- 2.7.4