diff options
| author | Stefan Roese | 2016-07-19 07:45:46 +0200 |
|---|---|---|
| committer | Bin Meng | 2016-08-16 11:44:09 +0800 |
| commit | 4cf9e464f78e58117b9a57e1e4e092e609d96b59 (patch) | |
| tree | 7ab70fbffa0469833b1a39eb8ea8dc6d4d5b9cc3 /include/nuvoton_nct6102d.h | |
| parent | d7b935bf62bafdf5fbe4734c7536754948958890 (diff) | |
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>
Diffstat (limited to 'include/nuvoton_nct6102d.h')
| -rw-r--r-- | include/nuvoton_nct6102d.h | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/nuvoton_nct6102d.h b/include/nuvoton_nct6102d.h new file mode 100644 index 00000000000..a122550a2cd --- /dev/null +++ b/include/nuvoton_nct6102d.h @@ -0,0 +1,34 @@ +/* + * 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_ */ |