Date: Wed, 27 Sep 2006 04:46:49 GMT From: Warner Losh <imp@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 106758 for review Message-ID: <200609270446.k8R4kn97027692@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
http://perforce.freebsd.org/chv.cgi?CH=106758 Change 106758 by imp@imp_lighthouse on 2006/09/27 04:46:40 Implement update_ios. Affected files ... .. //depot/projects/arm/src/sys/arm/at91/at91_mci.c#6 edit Differences ... ==== //depot/projects/arm/src/sys/arm/at91/at91_mci.c#6 (text+ko) ==== @@ -67,6 +67,7 @@ bus_dma_tag_t dmatag; bus_dmamap_t map; struct mmc_host host; + int wire4; }; static inline uint32_t @@ -247,7 +248,40 @@ static int at91_update_ios(device_t brdev, device_t reqdev) { - return (EIO); // XXX + uint32_t at91_master_clock = AT91C_MASTER_CLOCK; + struct at91_mci_softc *sc; + struct mmc_host *host; + struct mmc_ios *ios; + uint32_t clkdiv; + + sc = device_get_softc(brdev); + host = &sc->host; + ios = &host->ios; + // bus mode? + if (ios->clock == 0) { + WR4(sc, MCI_CR, MCI_CR_MCIDIS); + clkdiv = 0; + } else { + WR4(sc, MCI_CR, MCI_CR_MCIDIS); + if ((at91_master_clock % (ios->clock * 2)) == 0) + clkdiv = ((at91_master_clock / ios->clock) / 2) - 1; + else + clkdiv = (at91_master_clock / ios->clock) / 2; + } + if (ios->bus_width == bus_width_4 && sc->wire4) + WR4(sc, MCI_SDCR, RD4(sc, MCI_SDCR) | MCI_SDCR_SDCBUS); + else + WR4(sc, MCI_SDCR, RD4(sc, MCI_SDCR) & ~MCI_SDCR_SDCBUS); + WR4(sc, MCI_MR, (RD4(sc, MCI_MR) & ~MCI_MR_CLKDIV) | clkdiv); +#if 0 + if (sc->vcc_pin) { + if (sc->power_mode == MMC_POWER_OFF) + gpio_set(sc->vcc_pin, 0); + else + gpio_set(sc->vcc_pin, 1); + } +#endif + return (0); } static int
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200609270446.k8R4kn97027692>