u-boot/board/BuR/common/br_resetc.h
Hannes Schmelzer f4b9f0bdba board/BuR/common: add br resetcontoller implementation
On many B&R boards we have a reset-controller, responsible for very
early board-bringup (voltages, clocks, ...) and bootmode selection.

To be ready for adding more B&R boards to source tree while avoiding
duplicate code, we add the resetcontroller implementation to the common
part of B&R boards.

Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
2019-04-26 17:51:51 -04:00

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C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* common reset-controller functions for B&R boards
*
* Copyright (C) 2019 Hannes Schmelzer <oe5hpm@oevsv.at>
* B&R Industrial Automation GmbH - http://www.br-automation.com/ *
*/
#ifndef __CONFIG_BRRESETC_H__
#define __CONFIG_BRRESETC_H__
#include <common.h>
int br_resetc_regget(u8 reg, u8 *dst);
int br_resetc_regset(u8 reg, u8 val);
int br_resetc_bmode(void);
/* reset controller register defines */
#define RSTCTRL_CTRLREG 0x01
#define RSTCTRL_SCRATCHREG0 0x04
#define RSTCTRL_ENHSTATUS 0x07
#define RSTCTRL_SCRATCHREG1 0x08
#define RSTCTRL_RSTCAUSE 0x00
#define RSTCTRL_ERSTCAUSE 0x09
#define RSTCTRL_SPECGPIO_I 0x0A
#define RSTCTRL_SPECGPIO_O 0x0B
#endif /* __CONFIG_BRRESETC_H__ */