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authorH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
committerH. Nikolaus Schaller <hns@goldelico.com>2012-03-26 20:55:28 +0200
commit92988a21ad4c4c9504295ccb580c9f806134471b (patch)
tree5effc9f14170112450de05c67dafbe8d5034d595 /drivers/watchdog
parentca2b506783b676c95762c54ea24dcfdaae1947c9 (diff)
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added boot script files to repository
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/Makefile46
-rw-r--r--drivers/watchdog/at91sam9_wdt.c80
2 files changed, 0 insertions, 126 deletions
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
deleted file mode 100644
index 6ab4d52..0000000
--- a/drivers/watchdog/Makefile
+++ /dev/null
@@ -1,46 +0,0 @@
-#
-# (C) Copyright 2008
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# 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., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-
-include $(TOPDIR)/config.mk
-
-LIB := $(obj)libwatchdog.o
-
-COBJS-$(CONFIG_AT91SAM9_WATCHDOG) += at91sam9_wdt.o
-
-COBJS := $(COBJS-y)
-SRCS := $(COBJS:.o=.c)
-OBJS := $(addprefix $(obj),$(COBJS))
-
-all: $(LIB)
-
-$(LIB): $(obj).depend $(OBJS)
- $(call cmd_link_o_target, $(OBJS))
-
-#########################################################################
-
-# defines $(obj).depend target
-include $(SRCTREE)/rules.mk
-
-sinclude $(obj).depend
-
-#########################################################################
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
deleted file mode 100644
index 25afae7..0000000
--- a/drivers/watchdog/at91sam9_wdt.c
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * [origin: Linux kernel drivers/watchdog/at91sam9_wdt.c]
- *
- * Watchdog driver for Atmel AT91SAM9x processors.
- *
- * Copyright (C) 2008 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
- * Copyright (C) 2008 Renaud CERRATO r.cerrato@til-technologies.fr
- *
- * 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.
- */
-
-/*
- * The Watchdog Timer Mode Register can be only written to once. If the
- * timeout need to be set from U-Boot, be sure that the bootstrap doesn't
- * write to this register. Inform Linux to it too
- */
-
-#include <common.h>
-#include <watchdog.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/io.h>
-#include <asm/arch/at91_wdt.h>
-
-/*
- * AT91SAM9 watchdog runs a 12bit counter @ 256Hz,
- * use this to convert a watchdog
- * value from/to milliseconds.
- */
-#define ms_to_ticks(t) (((t << 8) / 1000) - 1)
-#define ticks_to_ms(t) (((t + 1) * 1000) >> 8)
-
-/* Hardware timeout in seconds */
-#define WDT_HW_TIMEOUT 2
-
-/*
- * Set the watchdog time interval in 1/256Hz (write-once)
- * Counter is 12 bit.
- */
-static int at91_wdt_settimeout(unsigned int timeout)
-{
- unsigned int reg;
- at91_wdt_t *wd = (at91_wdt_t *) AT91_WDT_BASE;
-
- /* Check if disabled */
- if (readl(&wd->mr) & AT91_WDT_MR_WDDIS) {
- printf("sorry, watchdog is disabled\n");
- return -1;
- }
-
- /*
- * All counting occurs at SLOW_CLOCK / 128 = 256 Hz
- *
- * Since WDV is a 12-bit counter, the maximum period is
- * 4096 / 256 = 16 seconds.
- */
-
- reg = AT91_WDT_MR_WDRSTEN /* causes watchdog reset */
- | AT91_WDT_MR_WDDBGHLT /* disabled in debug mode */
- | AT91_WDT_MR_WDD(0xfff) /* restart at any time */
- | AT91_WDT_MR_WDV(timeout); /* timer value */
-
- writel(reg, &wd->mr);
-
- return 0;
-}
-
-void hw_watchdog_reset(void)
-{
- at91_wdt_t *wd = (at91_wdt_t *) AT91_WDT_BASE;
- writel(AT91_WDT_CR_WDRSTT | AT91_WDT_CR_KEY, &wd->cr);
-}
-
-void hw_watchdog_init(void)
-{
- /* 16 seconds timer, resets enabled */
- at91_wdt_settimeout(ms_to_ticks(WDT_HW_TIMEOUT * 1000));
-}