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https://github.com/brain-hackers/u-boot-brain
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f4b9f0bdba
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>
27 lines
741 B
C
27 lines
741 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* common reset-controller functions for B&R boards
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*
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* Copyright (C) 2019 Hannes Schmelzer <oe5hpm@oevsv.at>
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* B&R Industrial Automation GmbH - http://www.br-automation.com/ *
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*/
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#ifndef __CONFIG_BRRESETC_H__
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#define __CONFIG_BRRESETC_H__
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#include <common.h>
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int br_resetc_regget(u8 reg, u8 *dst);
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int br_resetc_regset(u8 reg, u8 val);
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int br_resetc_bmode(void);
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/* reset controller register defines */
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#define RSTCTRL_CTRLREG 0x01
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#define RSTCTRL_SCRATCHREG0 0x04
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#define RSTCTRL_ENHSTATUS 0x07
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#define RSTCTRL_SCRATCHREG1 0x08
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#define RSTCTRL_RSTCAUSE 0x00
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#define RSTCTRL_ERSTCAUSE 0x09
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#define RSTCTRL_SPECGPIO_I 0x0A
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#define RSTCTRL_SPECGPIO_O 0x0B
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#endif /* __CONFIG_BRRESETC_H__ */
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