u-boot/board/freescale/common/vid.h
Ying Zhang 3ad2737ee3 powerpc/t208xqds: VID support
The fuse status register provides the values from on-chip
voltage ID efuses programmed at the factory.
These values define the voltage requirements for
the chip. u-boot reads FUSESR and translates the values
into the appropriate commands to set the voltage output
value of an external voltage regulator.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
2014-12-05 08:06:09 -08:00

20 lines
446 B
C

/*
* Copyright 2014 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef __VID_H_
#define __VID_H_
#define IR36021_LOOP1_MANUAL_ID_OFFSET 0x6A
#define IR36021_LOOP1_VOUT_OFFSET 0x9A
#define IR36021_MFR_ID_OFFSET 0x92
#define IR36021_MFR_ID 0x43
/* step the IR regulator in 5mV increments */
#define IR_VDD_STEP_DOWN 5
#define IR_VDD_STEP_UP 5
int adjust_vdd(ulong vdd_override);
#endif /* __VID_H_ */