motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 23:33:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

sdhci: implement UHS-I voltage switch

Browse source 
[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>
This commit is contained in:
Philippe Mathieu-Daudé 2018-02-08 13:48:09 -03:00 • committed by Paolo Bonzini
parent 238cd93567
commit 0034ebe6ee
6 changed files with 55 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

12
hw/sd/sdhci.c
View file

@ -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 */ \