u-boot/include/nuvoton_nct6102d.h
Stefan Roese 4cf9e464f7 misc: Add simple driver for some Nuvoton NCT6102D devices
This simple driver provides some functions to control some of the
integrated devices. The watchdog is enabled per default. This driver
adds a function to disable the watchdog. Also the internal legacy
UART (io address 0x3f8/0x2f8) is enabled per default.

Signed-off-by: Stefan Roese <sr@denx.de>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Cc: Simon Glass <sjg@chromium.org>
2016-08-16 11:44:09 +08:00

35 lines
790 B
C

/*
* Copyright (C) 2016 Stefan Roese <sr@denx.de>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _NUVOTON_NCT6102D_H_
#define _NUVOTON_NCT6102D_H_
/* I/O address of Nuvoton Super IO chip */
#define NCT6102D_IO_PORT 0x4e
/* Extended Function Enable Registers */
#define NCT_EFER (NCT6102D_IO_PORT + 0)
/* Extended Function Index Register (same as EFER) */
#define NCT_EFIR (NCT6102D_IO_PORT + 0)
/* Extended Function Data Register */
#define NCT_EFDR (NCT_EFIR + 1)
#define NCT_LD_SELECT_REG 0x07
/* Logical device number */
#define NCT6102D_LD_UARTA 0x02
#define NCT6102D_LD_WDT 0x08
#define NCT6102D_UARTA_ENABLE 0x30
#define NCT6102D_WDT_TIMEOUT 0xf1
#define NCT_ENTRY_KEY 0x87
#define NCT_EXIT_KEY 0xaa
int nct6102d_wdt_disable(void);
#endif /* _NUVOTON_NCT6102D_H_ */