drivers: net: xgene: Backward compatibility with older firmware

[deliverable/linux.git] / drivers / net / ethernet / apm / xgene / xgene_enet_sgmac.c

diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
index c22f32622fa9a50ad3789d8000991ede58502ca0..f5d4f68c288c395076205ba128788797d7114cdf 100644 (file)
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c
@@ -311,14 +311,19 @@ static void xgene_sgmac_tx_disable(struct xgene_enet_pdata *p)
        xgene_sgmac_rxtx(p, TX_EN, false);
 }
 
-static void xgene_enet_reset(struct xgene_enet_pdata *p)
+static int xgene_enet_reset(struct xgene_enet_pdata *p)
 {
+       if (!xgene_ring_mgr_init(p))
+               return -ENODEV;
+
        clk_prepare_enable(p->clk);
        clk_disable_unprepare(p->clk);
        clk_prepare_enable(p->clk);
 
        xgene_enet_ecc_init(p);
        xgene_enet_config_ring_if_assoc(p);
+
+       return 0;
 }
 
 static void xgene_enet_cle_bypass(struct xgene_enet_pdata *p,