Author: manu
Date: Fri Nov 20 11:30:44 2020
New Revision: 367886
URL: https://svnweb.freebsd.org/changeset/base/367886
Log:
if_awg: Add a awg_dma_start_tx function that trigger dma engine
No functional changes intended
Modified:
head/sys/arm/allwinner/if_awg.c
Modified: head/sys/arm/allwinner/if_awg.c
==============================================================================
--- head/sys/arm/allwinner/if_awg.c Fri Nov 20 11:30:23 2020
(r367885)
+++ head/sys/arm/allwinner/if_awg.c Fri Nov 20 11:30:44 2020
(r367886)
@@ -941,6 +941,18 @@ awg_setup_dma(device_t dev)
return (0);
}
+static void
+awg_dma_start_tx(struct awg_softc *sc)
+{
+ uint32_t val;
+
+ AWG_ASSERT_LOCKED(sc);
+
+ /* Start and run TX DMA */
+ val = RD4(sc, EMAC_TX_CTL_1);
+ WR4(sc, EMAC_TX_CTL_1, val | TX_DMA_START);
+}
+
/*
* if_ functions
*/
@@ -949,7 +961,6 @@ static void
awg_start_locked(struct awg_softc *sc)
{
struct mbuf *m;
- uint32_t val;
if_t ifp;
int cnt, err;
@@ -984,9 +995,7 @@ awg_start_locked(struct awg_softc *sc)
bus_dmamap_sync(sc->tx.desc_tag, sc->tx.desc_map,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
- /* Start and run TX DMA */
- val = RD4(sc, EMAC_TX_CTL_1);
- WR4(sc, EMAC_TX_CTL_1, val | TX_DMA_START);
+ awg_dma_start_tx(sc);
}
}
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