+++ /dev/null
-From e3c377986855f820513edf2924a022a39c363908 Mon Sep 17 00:00:00 2001
-From: John Crispin <blogic@openwrt.org>
-Date: Thu, 29 Sep 2011 21:29:14 +0200
-Subject: [PATCH 20/24] MIPS: lantiq: adds falcon VPE softdog
-
----
- arch/mips/include/asm/mach-lantiq/falcon/vpe.h | 44 ++++++++++
- arch/mips/lantiq/falcon/softdog_vpe.c | 109 ++++++++++++++++++++++++
- 2 files changed, 153 insertions(+), 0 deletions(-)
- create mode 100644 arch/mips/include/asm/mach-lantiq/falcon/vpe.h
- create mode 100644 arch/mips/lantiq/falcon/softdog_vpe.c
-
---- /dev/null
-+++ b/arch/mips/include/asm/mach-lantiq/falcon/vpe.h
-@@ -0,0 +1,44 @@
-+/*
-+ * 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.
-+ *
-+ * Copyright (C) 2005 infineon
-+ * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
-+ *
-+ */
-+#ifndef _IFXMIPS_VPE_H__
-+#define _IFXMIPS_VPE_H__
-+
-+/* For the explanation of the APIs please refer the section "MT APRP Kernel
-+ * Programming" in AR9 SW Architecture Specification
-+ */
-+int32_t vpe1_sw_start(void* sw_start_addr, uint32_t tcmask, uint32_t flags);
-+int32_t vpe1_sw_stop(uint32_t flags);
-+uint32_t vpe1_get_load_addr (uint32_t flags);
-+uint32_t vpe1_get_max_mem (uint32_t flags);
-+
-+int32_t vpe1_set_boot_param(char *field, char *value, char flags);
-+int32_t vpe1_get_boot_param(char *field, char **value, char flags);
-+
-+/* Watchdog APIs */
-+extern unsigned long vpe1_wdog_ctr;
-+extern unsigned long vpe1_wdog_timeout;
-+
-+unsigned long vpe1_sw_wdog_start(unsigned long);
-+unsigned long vpe1_sw_wdog_stop(unsigned long);
-+
-+typedef int (*VPE_SW_WDOG_RESET)(unsigned long wdog_cleared_ok_count);
-+int32_t vpe1_sw_wdog_register_reset_handler(VPE_SW_WDOG_RESET reset_fn);
-+
-+#endif
---- /dev/null
-+++ b/arch/mips/lantiq/falcon/softdog_vpe.c
-@@ -0,0 +1,109 @@
-+/*
-+** =============================================================================
-+** FILE NAME : softdog_vpe.c
-+** MODULES : LXDB
-+** DATE : 24-03-2008
-+** AUTHOR : LXDB Team
-+** DESCRIPTION : This header file contains the code for the watchdog
-+** implentation on vpe1 side.
-+** REFERENCES :
-+** COPYRIGHT : Copyright (c) 2008
-+** Am Campeon 1-12, 85579 Neubiberg, Germany
-+** Any use of this software is subject to the conclusion of a respective
-+** License agreement. Without such a License agreement no rights to the
-+** software are granted
-+**
-+** HISTORY :
-+** $Date $Author $Comment
-+** 24-03-2008 LXDB Initial version
-+** ============================================================================
-+*/
-+
-+#include <linux/module.h>
-+#include <linux/moduleparam.h>
-+#include <linux/types.h>
-+#include <linux/timer.h>
-+#include <linux/reboot.h>
-+#include <linux/init.h>
-+#include <linux/jiffies.h>
-+
-+#include <falcon/vpe.h>
-+
-+static unsigned long last_wdog_value;
-+static unsigned long vpe1_wdog_cleared;
-+
-+static unsigned long vpe1_wdog_dead;
-+static void watchdog_vpe0_fire(unsigned long); /* Called when vpe0 timer expires */
-+static void keep_alive_vpe0(unsigned long);
-+VPE_SW_WDOG_RESET reset_local_fn;
-+
-+
-+static struct timer_list watchdog_vpe0_ticktock =
-+ TIMER_INITIALIZER(watchdog_vpe0_fire, 0, 0);
-+
-+static void watchdog_vpe0_fire (unsigned long flags)
-+{
-+ volatile unsigned long *wdog_ctr_value;
-+ wdog_ctr_value = (void*)vpe1_wdog_ctr;
-+ if (*wdog_ctr_value == last_wdog_value) { /* VPE1 watchdog expiry handling */
-+ vpe1_sw_wdog_stop(flags);
-+ vpe1_wdog_dead++;
-+ printk(KERN_DEBUG "VPE1 watchdog reset handler called\n");
-+ /* Call the reset handler function */
-+ reset_local_fn(flags);
-+ } else { /* Everything is OK on vpe1 side. Continue. */
-+ last_wdog_value = *wdog_ctr_value;
-+ vpe1_wdog_cleared++;
-+ keep_alive_vpe0(flags);
-+ }
-+}
-+
-+int32_t vpe1_sw_wdog_register_reset_handler (VPE_SW_WDOG_RESET reset_fn)
-+{
-+ reset_local_fn = (VPE_SW_WDOG_RESET)reset_fn;
-+ return 0;
-+}
-+
-+static void keep_alive_vpe0(unsigned long flags)
-+{
-+ mod_timer(&watchdog_vpe0_ticktock, jiffies+ vpe1_wdog_timeout );
-+}
-+
-+unsigned long vpe1_sw_wdog_start(unsigned long flags)
-+{
-+ volatile unsigned long *wdog_ctr_value;
-+ wdog_ctr_value = (void*)vpe1_wdog_ctr;
-+ *wdog_ctr_value = 0;
-+ last_wdog_value = 0;
-+ keep_alive_vpe0(flags);
-+ return 0;
-+}
-+
-+unsigned long vpe1_sw_wdog_stop(unsigned long flags)
-+{
-+ del_timer(&watchdog_vpe0_ticktock);
-+ return 0;
-+}
-+
-+static int __init watchdog_vpe1_init(void)
-+{
-+ /* Nothing to be done here */
-+ return 0;
-+}
-+
-+static void __exit watchdog_vpe1_exit(void)
-+{
-+ unsigned long flags=0;
-+ vpe1_sw_wdog_stop(flags);
-+}
-+
-+module_init(watchdog_vpe1_init);
-+module_exit(watchdog_vpe1_exit);
-+
-+EXPORT_SYMBOL(vpe1_sw_wdog_register_reset_handler);
-+EXPORT_SYMBOL(vpe1_sw_wdog_start);
-+EXPORT_SYMBOL(vpe1_sw_wdog_stop);
-+
-+MODULE_AUTHOR("LXDB");
-+MODULE_DESCRIPTION("Software Watchdog For VPE1");
-+MODULE_LICENSE("GPL");
---- a/arch/mips/lantiq/falcon/Makefile
-+++ b/arch/mips/lantiq/falcon/Makefile
-@@ -1,2 +1,2 @@
--obj-y := clk.o prom.o reset.o sysctrl.o devices.o gpio.o
-+obj-y := clk.o prom.o reset.o sysctrl.o devices.o gpio.o softdog_vpe.o
- obj-$(CONFIG_LANTIQ_MACH_EASY98000) += mach-easy98000.o
projects / openwrt.git / blobdiff