diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2017-05-05 15:10:08 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2017-05-05 15:10:08 +0000 |
| commit | 97f312d6506cec9c05d150482378eb6e09e824d6 (patch) | |
| tree | 17a4d247df71d66c9723426da1aa3cd8934627c1 /sys/dev | |
| parent | 97a60ad4defbad0f2117f9dd5b2e877c4ba954ff (diff) | |
Implement two quirks to support the Arasan eMMC 5.1 controller found on
the Rockchip RK3399.
- Make it possible to override sdhc_signal_voltage().
- Make it possible to disable double-data rate modes.
ok patrick@
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/sdmmc/sdhc.c | 9 | ||||
| -rw-r--r-- | sys/dev/sdmmc/sdhcvar.h | 4 |
2 files changed, 11 insertions, 2 deletions
diff --git a/sys/dev/sdmmc/sdhc.c b/sys/dev/sdmmc/sdhc.c index ca8fbaa4bc4..c242a600d4a 100644 --- a/sys/dev/sdmmc/sdhc.c +++ b/sys/dev/sdmmc/sdhc.c @@ -1,4 +1,4 @@ -/* $OpenBSD: sdhc.c,v 1.54 2017/04/06 03:15:29 deraadt Exp $ */ +/* $OpenBSD: sdhc.c,v 1.55 2017/05/05 15:10:07 kettenis Exp $ */ /* * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> @@ -25,6 +25,7 @@ #include <sys/device.h> #include <sys/kernel.h> #include <sys/malloc.h> +#include <sys/proc.h> #include <sys/systm.h> #include <dev/sdmmc/sdhcreg.h> @@ -317,6 +318,9 @@ sdhc_host_found(struct sdhc_softc *sc, bus_space_tag_t iot, saa.caps |= SMC_CAPS_MMC_DDR52; } + if (ISSET(sc->sc_flags, SDHC_F_NODDR50)) + saa.caps &= ~SMC_CAPS_MMC_DDR52; + hp->sdmmc = config_found(&sc->sc_dev, &saa, NULL); if (hp->sdmmc == NULL) { error = 0; @@ -684,6 +688,9 @@ sdhc_signal_voltage(sdmmc_chipset_handle_t sch, int signal_voltage) { struct sdhc_host *hp = sch; + if (hp->sc->sc_signal_voltage) + return hp->sc->sc_signal_voltage(hp->sc, signal_voltage); + if (SDHC_SPEC_VERSION(hp->version) < SDHC_SPEC_V3) return EINVAL; diff --git a/sys/dev/sdmmc/sdhcvar.h b/sys/dev/sdmmc/sdhcvar.h index e6a419e2719..9d4d759a2bc 100644 --- a/sys/dev/sdmmc/sdhcvar.h +++ b/sys/dev/sdmmc/sdhcvar.h @@ -1,4 +1,4 @@ -/* $OpenBSD: sdhcvar.h,v 1.9 2016/04/30 11:32:23 kettenis Exp $ */ +/* $OpenBSD: sdhcvar.h,v 1.10 2017/05/05 15:10:07 kettenis Exp $ */ /* * Copyright (c) 2006 Uwe Stuehler <uwe@openbsd.org> @@ -32,6 +32,7 @@ struct sdhc_softc { bus_dma_tag_t sc_dmat; int (*sc_card_detect)(struct sdhc_softc *); + int (*sc_signal_voltage)(struct sdhc_softc *, int); }; /* Host controller functions called by the attachment driver. */ @@ -45,5 +46,6 @@ void sdhc_needs_discover(struct sdhc_softc *); /* flag values */ #define SDHC_F_NOPWR0 (1 << 0) +#define SDHC_F_NODDR50 (1 << 1) #endif |