MCI Controls

Configure and control the MCI interface. More...

Macros
#define	ARM_MCI_BUS_SPEED   (0x01)
	Set Bus Speed; arg = requested speed in bits/s; returns configured speed in bits/s. More...
#define	ARM_MCI_BUS_SPEED_MODE   (0x02)
	Set Bus Speed Mode as specified with arg. More...
#define	ARM_MCI_BUS_CMD_MODE   (0x03)
	Set CMD Line Mode as specified with arg. More...
#define	ARM_MCI_BUS_DATA_WIDTH   (0x04)
	Set Bus Data Width as specified with arg. More...
#define	ARM_MCI_DRIVER_STRENGTH   (0x05)
	Set SD UHS-I Driver Strength as specified with arg. More...
#define	ARM_MCI_CONTROL_RESET   (0x06)
	Control optional RST_n Pin (eMMC); arg: 0=inactive, 1=active. More...
#define	ARM_MCI_CONTROL_CLOCK_IDLE   (0x07)
	Control Clock generation on CLK Pin when idle; arg: 0=disabled, 1=enabled. More...
#define	ARM_MCI_UHS_TUNING_OPERATION   (0x08)
	Sampling clock Tuning operation (SD UHS-I); arg: 0=reset, 1=execute. More...
#define	ARM_MCI_UHS_TUNING_RESULT   (0x09)
	Sampling clock Tuning result (SD UHS-I); returns: 0=done, 1=in progress, -1=error. More...
#define	ARM_MCI_DATA_TIMEOUT   (0x0A)
	Set Data timeout; arg = timeout in bus cycles. More...
#define	ARM_MCI_CSS_TIMEOUT   (0x0B)
	Set Command Completion Signal (CCS) timeout; arg = timeout in bus cycles. More...
#define	ARM_MCI_MONITOR_SDIO_INTERRUPT   (0x0C)
	Monitor SD I/O interrupt: arg: 0=disabled, 1=enabled. More...
#define	ARM_MCI_CONTROL_READ_WAIT   (0x0D)
	Control Read/Wait for SD I/O; arg: 0=disabled, 1=enabled. More...
#define	ARM_MCI_SUSPEND_TRANSFER   (0x0E)
	Suspend Data transfer (SD I/O); returns number of remaining bytes to transfer. More...
#define	ARM_MCI_RESUME_TRANSFER   (0x0F)
	Resume Data transfer (SD I/O) More...

Description

Configure and control the MCI interface.

The following codes are used as values for the parameter control of the function ARM_MCI_Control to setup the MCI interface.

Macro Definition Documentation

#define ARM_MCI_BUS_SPEED   (0x01)

Set Bus Speed; arg = requested speed in bits/s; returns configured speed in bits/s.

#define ARM_MCI_BUS_SPEED_MODE   (0x02)

Set Bus Speed Mode as specified with arg.

#define ARM_MCI_BUS_CMD_MODE   (0x03)

Set CMD Line Mode as specified with arg.

#define ARM_MCI_BUS_DATA_WIDTH   (0x04)

Set Bus Data Width as specified with arg.

#define ARM_MCI_DRIVER_STRENGTH   (0x05)

Set SD UHS-I Driver Strength as specified with arg.

#define ARM_MCI_CONTROL_RESET   (0x06)

Control optional RST_n Pin (eMMC); arg: 0=inactive, 1=active.

#define ARM_MCI_CONTROL_CLOCK_IDLE   (0x07)

Control Clock generation on CLK Pin when idle; arg: 0=disabled, 1=enabled.

#define ARM_MCI_UHS_TUNING_OPERATION   (0x08)

Sampling clock Tuning operation (SD UHS-I); arg: 0=reset, 1=execute.

#define ARM_MCI_UHS_TUNING_RESULT   (0x09)

Sampling clock Tuning result (SD UHS-I); returns: 0=done, 1=in progress, -1=error.

#define ARM_MCI_DATA_TIMEOUT   (0x0A)

Set Data timeout; arg = timeout in bus cycles.

#define ARM_MCI_CSS_TIMEOUT   (0x0B)

Set Command Completion Signal (CCS) timeout; arg = timeout in bus cycles.

#define ARM_MCI_MONITOR_SDIO_INTERRUPT   (0x0C)

Monitor SD I/O interrupt: arg: 0=disabled, 1=enabled.

#define ARM_MCI_CONTROL_READ_WAIT   (0x0D)

Control Read/Wait for SD I/O; arg: 0=disabled, 1=enabled.

#define ARM_MCI_SUSPEND_TRANSFER   (0x0E)

Suspend Data transfer (SD I/O); returns number of remaining bytes to transfer.

#define ARM_MCI_RESUME_TRANSFER   (0x0F)

Resume Data transfer (SD I/O)