diff options
| author | Giuseppe Cavallaro <peppe.cavallaro@st.com> | 2016-02-29 13:27:27 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-02 19:21:30 (GMT) |
| commit | 495db27302a88fcabb105c3d30a617beda913945 (patch) | |
| tree | 852caf1e28f53c2e4d71e3b1e10551fc1386b648 /drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | |
| parent | fcb3f55f664676eed0745d18680040e07c5501ef (diff) | |
| download | linux-495db27302a88fcabb105c3d30a617beda913945.tar.xz | |
stmmac: share reset function between dwmac100 and dwmac1000
This patch is to share the same reset procedure between dwmac100 and
dwmac1000 chips.
This will also help on enhancing the driver and support new chips.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index c21015b..13752e9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1638,6 +1638,7 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) int pbl = DEFAULT_DMA_PBL, fixed_burst = 0, burst_len = 0; int mixed_burst = 0; int atds = 0; + int ret = 0; if (priv->plat->dma_cfg) { pbl = priv->plat->dma_cfg->pbl; @@ -1649,9 +1650,16 @@ static int stmmac_init_dma_engine(struct stmmac_priv *priv) if (priv->extend_desc && (priv->mode == STMMAC_RING_MODE)) atds = 1; - return priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst, - burst_len, priv->dma_tx_phy, - priv->dma_rx_phy, atds); + ret = priv->hw->dma->reset(priv->ioaddr); + if (ret) { + dev_err(priv->device, "Failed to reset the dma\n"); + return ret; + } + + priv->hw->dma->init(priv->ioaddr, pbl, fixed_burst, mixed_burst, + burst_len, priv->dma_tx_phy, + priv->dma_rx_phy, atds); + return ret; } /** |