diff options
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/ftwdt010_wdt.c | 12 | ||||
| -rw-r--r-- | drivers/watchdog/ftwdt010_wdt.h | 103 |
2 files changed, 7 insertions, 108 deletions
diff --git a/drivers/watchdog/ftwdt010_wdt.c b/drivers/watchdog/ftwdt010_wdt.c index 6e0617b..c9cb53e 100644 --- a/drivers/watchdog/ftwdt010_wdt.c +++ b/drivers/watchdog/ftwdt010_wdt.c @@ -29,13 +29,13 @@ #include <common.h> #include <watchdog.h> #include <asm/io.h> -#include "ftwdt010_wdt.h" +#include <faraday/ftwdt010_wdt.h> /* * Set the watchdog time interval. * Counter is 32 bit. */ -static int ftwdt010_wdt_settimeout(unsigned int timeout) +int ftwdt010_wdt_settimeout(unsigned int timeout) { unsigned int reg; @@ -61,7 +61,7 @@ static int ftwdt010_wdt_settimeout(unsigned int timeout) return 0; } -void ftwdt010_wdt_reset() +void ftwdt010_wdt_reset(void) { struct ftwdt010_wdt *wd = (struct ftwdt010_wdt *)CONFIG_FTWDT010_BASE; @@ -75,7 +75,7 @@ void ftwdt010_wdt_reset() writel((FTWDT010_WDCR_RST | FTWDT010_WDCR_ENABLE), &wd->wdcr); } -void ftwdt010_wdt_disable() +void ftwdt010_wdt_disable(void) { struct ftwdt010_wdt *wd = (struct ftwdt010_wdt *)CONFIG_FTWDT010_BASE; @@ -90,7 +90,8 @@ void ftwdt010_wdt_disable() writel(0, &wd->wdcr); } -void hw_watchdog_reset() +#if defined(CONFIG_HW_WATCHDOG) +void hw_watchdog_reset(void) { ftwdt010_wdt_reset(); } @@ -100,3 +101,4 @@ void hw_watchdog_init(void) /* set timer in ms */ ftwdt010_wdt_settimeout(CONFIG_FTWDT010_HW_TIMEOUT * 1000); } +#endif diff --git a/drivers/watchdog/ftwdt010_wdt.h b/drivers/watchdog/ftwdt010_wdt.h deleted file mode 100644 index 8f4fd68..0000000 --- a/drivers/watchdog/ftwdt010_wdt.h +++ /dev/null @@ -1,103 +0,0 @@ -/* - * Watchdog driver for the FTWDT010 Watch Dog Driver - * - * (c) Copyright 2004 Faraday Technology Corp. (www.faraday-tech.com) - * Based on sa1100_wdt.c by Oleg Drokin <green@crimea.edu> - * Based on SoftDog driver by Alan Cox <alan@redhat.com> - * - * Copyright (C) 2011 Andes Technology Corporation - * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * 27/11/2004 Initial release, Faraday. - * 12/01/2011 Port to u-boot, Macpaul Lin. - */ - -#ifndef __FTWDT010_H -#define __FTWDT010_H - -struct ftwdt010_wdt { - unsigned int wdcounter; /* Counter Reg - 0x00 */ - unsigned int wdload; /* Counter Auto Reload Reg - 0x04 */ - unsigned int wdrestart; /* Counter Restart Reg - 0x08 */ - unsigned int wdcr; /* Control Reg - 0x0c */ - unsigned int wdstatus; /* Status Reg - 0x10 */ - unsigned int wdclear; /* Timer Clear - 0x14 */ - unsigned int wdintrlen; /* Interrupt Length - 0x18 */ -}; - -/* - * WDLOAD - Counter Auto Reload Register - * The Auto Reload Register is set to 0x03EF1480 (66Mhz) by default. - * Which means in a 66MHz system, the period of Watch Dog timer reset is - * one second. - */ -#define FTWDT010_WDLOAD(x) ((x) & 0xffffffff) - -/* - * WDRESTART - Watch Dog Timer Counter Restart Register - * If writing 0x5AB9 to WDRESTART register, Watch Dog timer will - * automatically reload WDLOAD to WDCOUNTER and restart counting. - */ -#define FTWDT010_WDRESTART_MAGIC 0x5AB9 - -/* WDCR - Watch Dog Timer Control Register */ -#define FTWDT010_WDCR_ENABLE (1 << 0) -#define FTWDT010_WDCR_RST (1 << 1) -#define FTWDT010_WDCR_INTR (1 << 2) -/* FTWDT010_WDCR_EXT bit: Watch Dog Timer External Signal Enable */ -#define FTWDT010_WDCR_EXT (1 << 3) -/* FTWDT010_WDCR_CLOCK bit: Clock Source: 0: PCLK, 1: EXTCLK. - * The clock source PCLK cannot be gated when system sleeps, even if - * WDCLOCK bit is turned on. - * - * Faraday's Watch Dog timer can be driven by an external clock. The - * programmer just needs to write one to WdCR[WdClock] bit. - * - * Note: There is a limitation between EXTCLK and PCLK: - * EXTCLK cycle time / PCLK cycle time > 2. - * If the system does not need an external clock, - * just keep WdCR[WdClock] bit in its default value. - */ -#define FTWDT010_WDCR_CLOCK (1 << 4) - -/* - * WDSTATUS - Watch Dog Timer Status Register - * This bit is set when the counter reaches Zero - */ -#define FTWDT010_WDSTATUS(x) ((x) & 0x1) - -/* - * WDCLEAR - Watch Dog Timer Clear Register - * Writing one to this register will clear WDSTATUS. - */ -#define FTWDT010_WDCLEAR (1 << 0) - -/* - * WDINTRLEN - Watch Dog Timer Interrupt Length - * This register controls the duration length of wd_rst, wd_intr and wd_ext. - * The default value is 0xFF. - */ -#define FTWDT010_WDINTRLEN(x) ((x) & 0xff) - -/* - * Variable timeout should be set in ms. - * (CONFIG_SYS_CLK_FREQ/1000) equals 1 ms. - * WDLOAD = timeout * TIMEOUT_FACTOR. - */ -#define FTWDT010_TIMEOUT_FACTOR (CONFIG_SYS_CLK_FREQ / 1000) /* 1 ms */ - -#endif /* __FTWDT010_H */ |