Date: Fri, 20 Nov 2020 11:30:45 +0000 (UTC) From: Emmanuel Vadot <manu@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r367886 - head/sys/arm/allwinner Message-ID: <202011201130.0AKBUjsZ090293@repo.freebsd.org>
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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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