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git.ipfire.org Git - thirdparty/u-boot.git/blob - drivers/misc/nuvoton_nct6102d.c
1 // SPDX-License-Identifier: GPL-2.0+
3 * Copyright (C) 2016 Stefan Roese <sr@denx.de>
7 #include <nuvoton_nct6102d.h>
9 #include <asm/pnp_def.h>
11 static void superio_outb(int reg
, int val
)
17 static inline int superio_inb(int reg
)
23 static int superio_enter(void)
25 outb(NCT_ENTRY_KEY
, NCT_EFER
); /* Enter extended function mode */
26 outb(NCT_ENTRY_KEY
, NCT_EFER
); /* Again according to manual */
31 static void superio_select(int ld
)
33 superio_outb(NCT_LD_SELECT_REG
, ld
);
36 static void superio_exit(void)
38 outb(NCT_EXIT_KEY
, NCT_EFER
); /* Leave extended function mode */
42 * The Nuvoton NCT6102D starts per default after reset with both,
43 * the internal watchdog and the internal legacy UART enabled. This
44 * code provides a function to disable the watchdog.
46 int nct6102d_wdt_disable(void)
49 /* Select logical device for WDT */
50 superio_select(NCT6102D_LD_WDT
);
51 superio_outb(NCT6102D_WDT_TIMEOUT
, 0x00);