diff options
Diffstat (limited to 'drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c')
| -rw-r--r-- | drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c index e6d24c210198..f5d4f68c288c 100644 --- a/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c +++ b/drivers/net/ethernet/apm/xgene/xgene_enet_sgmac.c @@ -124,20 +124,18 @@ static int xgene_enet_ecc_init(struct xgene_enet_pdata *p) { struct net_device *ndev = p->ndev; u32 data; - int i; + int i = 0; xgene_enet_wr_diag_csr(p, ENET_CFG_MEM_RAM_SHUTDOWN_ADDR, 0); - for (i = 0; i < 10 && data != ~0U ; i++) { + do { usleep_range(100, 110); data = xgene_enet_rd_diag_csr(p, ENET_BLOCK_MEM_RDY_ADDR); - } - - if (data != ~0U) { - netdev_err(ndev, "Failed to release memory from shutdown\n"); - return -ENODEV; - } + if (data == ~0U) + return 0; + } while (++i < 10); - return 0; + netdev_err(ndev, "Failed to release memory from shutdown\n"); + return -ENODEV; } static void xgene_enet_config_ring_if_assoc(struct xgene_enet_pdata *p) @@ -313,14 +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, |