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| author | Kornel Duleba <mindal@semihalf.com> | 2021-11-28 11:24:07 +0000 |
|---|---|---|
| committer | Marcin Wojtas <mw@FreeBSD.org> | 2021-11-29 16:02:01 +0000 |
| commit | 8661e085fb953855dbc7059f21a64a05ae61b22c (patch) | |
| tree | 556798254161a9606e07d784899dce67cd6aeed8 /sys/dev/mmc | |
| parent | 181751a8b6ef580c44d49ef3cac1c6627bfa461e (diff) | |
| download | src-8661e085fb953855dbc7059f21a64a05ae61b22c.tar.gz src-8661e085fb953855dbc7059f21a64a05ae61b22c.zip | |
mmc: Fix HS200/HS400 capability check
HS200 and HS400 speeds can be enabled either with 1.2, or 1.8V signaling voltage.
Because of that we have four cabability flags: MMC_CAP_MMC_HS200_120,
MMC_CAP_MMC_HS200_180, MMC_CAP_MMC_HS400_120, MMC_CAP_MMC_HS400_180.
MMC logic only enables HS200/HS400 mode if both flags are set for the corresponding speed.
Fix that by being more permissive in host timing cap check.
Reviewed by: manu, mw
MFC after: 2 weeks
Obtained from: Semihalf
Sponsored by: Alstom Group
Differential revision: https://reviews.freebsd.org/D33130
Diffstat (limited to 'sys/dev/mmc')
| -rw-r--r-- | sys/dev/mmc/mmc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/sys/dev/mmc/mmc.c b/sys/dev/mmc/mmc.c index 1fc25e372f2b..9c73dfd57ce0 100644 --- a/sys/dev/mmc/mmc.c +++ b/sys/dev/mmc/mmc.c @@ -1543,9 +1543,11 @@ mmc_host_timing(device_t dev, enum mmc_bus_timing timing) case bus_timing_mmc_ddr52: return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_DDR52)); case bus_timing_mmc_hs200: - return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS200)); + return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS200_120) || + HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS200_180)); case bus_timing_mmc_hs400: - return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS400)); + return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS400_120) || + HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS400_180)); case bus_timing_mmc_hs400es: return (HOST_TIMING_CAP(host_caps, MMC_CAP_MMC_HS400 | MMC_CAP_MMC_ENH_STROBE)); |