diff options
| author | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2018-02-08 13:48:09 -0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2018-02-13 16:15:08 +0100 |
| commit | 0034ebe6ee3151e5c54fd13c6f441429bd2cdadf (patch) | |
| tree | 2da682a7258b0b1796426a485ea1429e2803fb66 /hw/sd/sdhci.c | |
| parent | 238cd93567253e0126fbd0c0c3bc75aa43e46a5d (diff) | |
sdhci: implement UHS-I voltage switch
[based on a patch from Alistair Francis <alistair.francis@xilinx.com>
from qemu/xilinx tag xilinx-v2015.2]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-Id: <20180208164818.7961-22-f4bug@amsat.org>
Diffstat (limited to 'hw/sd/sdhci.c')
| -rw-r--r-- | hw/sd/sdhci.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/hw/sd/sdhci.c b/hw/sd/sdhci.c index 2712b8218a..5ca82cf301 100644 --- a/hw/sd/sdhci.c +++ b/hw/sd/sdhci.c @@ -1255,7 +1255,16 @@ sdhci_write(void *opaque, hwaddr offset, uint64_t val, unsigned size) sdhci_update_irq(s); break; case SDHC_ACMD12ERRSTS: - MASKED_WRITE(s->acmd12errsts, mask, value); + MASKED_WRITE(s->acmd12errsts, mask, value & UINT16_MAX); + if (s->uhs_mode >= UHS_I) { + MASKED_WRITE(s->hostctl2, mask >> 16, value >> 16); + + if (FIELD_EX32(s->hostctl2, SDHC_HOSTCTL2, V18_ENA)) { + sdbus_set_voltage(&s->sdbus, SD_VOLTAGE_1_8V); + } else { + sdbus_set_voltage(&s->sdbus, SD_VOLTAGE_3_3V); + } + } break; case SDHC_CAPAB: @@ -1310,6 +1319,7 @@ static void sdhci_init_readonly_registers(SDHCIState *s, Error **errp) #define DEFINE_SDHCI_COMMON_PROPERTIES(_state) \ DEFINE_PROP_UINT8("sd-spec-version", _state, sd_spec_version, 2), \ + DEFINE_PROP_UINT8("uhs", _state, uhs_mode, UHS_NOT_SUPPORTED), \ \ /* Capabilities registers provide information on supported * features of this specific host controller implementation */ \ |