From 3ad2737ee3faa291f75176b667ac3ad4408b023d Mon Sep 17 00:00:00 2001 From: Ying Zhang Date: Fri, 31 Oct 2014 18:06:18 +0800 Subject: 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 Reviewed-by: York Sun --- board/freescale/common/vid.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) create mode 100644 board/freescale/common/vid.h (limited to 'board/freescale/common/vid.h') diff --git a/board/freescale/common/vid.h b/board/freescale/common/vid.h new file mode 100644 index 0000000..a9c7bb4 --- /dev/null +++ b/board/freescale/common/vid.h @@ -0,0 +1,20 @@ +/* + * 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_ */ -- cgit v1.1