lijuang | 3983173 | 2016-01-08 17:49:02 +0800 | [diff] [blame] | 1 | /* Copyright (c) 2015-2016, The Linux Foundation. All rights reserved. |
Aparna Mallavarapu | 921b9b7 | 2015-05-08 09:43:29 +0530 | [diff] [blame] | 2 | |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation. nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <stdlib.h> |
| 30 | #include <debug.h> |
| 31 | #include <platform.h> |
| 32 | #include <platform/iomap.h> |
| 33 | #include <reg.h> |
| 34 | #include <wdog.h> |
| 35 | #include <target.h> |
Aparna Mallavarapu | da91ea9 | 2015-07-10 12:03:46 +0530 | [diff] [blame] | 36 | #include <scm.h> |
| 37 | #include <dload_util.h> |
lijuang | 3983173 | 2016-01-08 17:49:02 +0800 | [diff] [blame] | 38 | #include <kernel/thread.h> |
| 39 | |
| 40 | #define WDOG_FEED_FREQUENCY 1000 |
| 41 | |
| 42 | static int wdog_feed_handler(void *param) { |
| 43 | while(1) { |
| 44 | writel(1, APPS_WDOG_RESET_REG); |
| 45 | thread_sleep(WDOG_FEED_FREQUENCY); |
| 46 | } |
| 47 | return 0; |
| 48 | } |
| 49 | |
| 50 | static void wdog_feed_func_thread(void) |
| 51 | { |
| 52 | static bool is_thread_start; |
| 53 | thread_t *thr; |
| 54 | |
| 55 | if (!is_thread_start) { |
| 56 | thr = thread_create("wdogfeed", wdog_feed_handler, |
| 57 | 0, DEFAULT_PRIORITY, DEFAULT_STACK_SIZE); |
| 58 | if (!thr) { |
| 59 | dprintf(CRITICAL, "ERROR: create feed dog thread failed!!\n"); |
| 60 | return; |
| 61 | } |
| 62 | thread_resume(thr); |
| 63 | is_thread_start = true; |
| 64 | } |
| 65 | } |
Aparna Mallavarapu | 921b9b7 | 2015-05-08 09:43:29 +0530 | [diff] [blame] | 66 | |
| 67 | void msm_wdog_init() |
| 68 | { |
Aparna Mallavarapu | 921b9b7 | 2015-05-08 09:43:29 +0530 | [diff] [blame] | 69 | /* Set Bite and Bark times 10s */ |
| 70 | writel(0x77FD3, APPS_WDOG_BARK_VAL_REG); |
| 71 | writel(0x77FD3, APPS_WDOG_BITE_VAL_REG); |
| 72 | |
| 73 | /* Reset WDOG */ |
| 74 | writel(1, APPS_WDOG_RESET_REG); |
| 75 | |
| 76 | /* Enable WDOG */ |
| 77 | writel((readl(APPS_WDOG_CTL_REG) | 0x1), APPS_WDOG_CTL_REG); |
| 78 | |
lijuang | 3983173 | 2016-01-08 17:49:02 +0800 | [diff] [blame] | 79 | wdog_feed_func_thread(); |
Aparna Mallavarapu | da91ea9 | 2015-07-10 12:03:46 +0530 | [diff] [blame] | 80 | |
lijuang | 3983173 | 2016-01-08 17:49:02 +0800 | [diff] [blame] | 81 | set_download_mode(NORMAL_DLOAD); |
Aparna Mallavarapu | 921b9b7 | 2015-05-08 09:43:29 +0530 | [diff] [blame] | 82 | } |