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sdhci: implement UHS-I voltage switch

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[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
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16
include/hw/sd/sd.h
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@ -55,6 +55,20 @@
#define AKE_SEQ_ERROR (1 << 3)
#define OCR_CCS_BITN 30
typedef enum {
SD_VOLTAGE_0_4V = 400, /* currently not supported */
SD_VOLTAGE_1_8V = 1800,
SD_VOLTAGE_3_0V = 3000,
SD_VOLTAGE_3_3V = 3300,
} sd_voltage_mv_t;
typedef enum {
UHS_NOT_SUPPORTED = 0,
UHS_I = 1,
UHS_II = 2, /* currently not supported */
UHS_III = 3, /* currently not supported */
} sd_uhs_mode_t;
typedef enum {
sd_none = -1,
sd_bc = 0, /* broadcast -- no response */
@ -88,6 +102,7 @@ typedef struct {
void (*write_data)(SDState *sd, uint8_t value);
uint8_t (*read_data)(SDState *sd);
bool (*data_ready)(SDState *sd);
void (*set_voltage)(SDState *sd, uint16_t millivolts);
void (*enable)(SDState *sd, bool enable);
bool (*get_inserted)(SDState *sd);
bool (*get_readonly)(SDState *sd);
@ -134,6 +149,7 @@ void sd_enable(SDState *sd, bool enable);
/* Functions to be used by qdevified callers (working via
* an SDBus rather than directly with SDState)
*/
void sdbus_set_voltage(SDBus *sdbus, uint16_t millivolts);
int sdbus_do_command(SDBus *sd, SDRequest *req, uint8_t *response);
void sdbus_write_data(SDBus *sd, uint8_t value);
uint8_t sdbus_read_data(SDBus *sd);