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- /*
- * Copyright (c) 2006-2021, RT-Thread Development Team
- *
- * SPDX-License-Identifier: Apache-2.0
- *
- * Change Logs:
- * Date Author Notes
- * 2021-07-28 songchao first version
- */
- #include <rtconfig.h>
- #ifdef RT_USING_WDT
- #include <rtthread.h>
- #include <rtdbg.h>
- #include "drv_wdt.h"
- #include "fsl_wdog.h"
- #include "imx6ull.h"
- enum
- {
- #ifdef RT_USING_WDT1
- DEV_WDT1,
- #endif
- #ifdef RT_USING_WDT2
- DEV_WDT2,
- #endif
- #ifdef RT_USING_WDT3
- DEV_WDT3,
- #endif
- DEV_MAX,
- };
- #ifdef RT_USING_WDT1
- static wdog_config_t WDOG_1_config =
- {
- .timeoutValue = 0xffu,
- .enablePowerDown = false,
- .softwareResetExtension = false,
- .softwareAssertion = true,
- .softwareResetSignal = true,
- .enableWdog = true,
- .workMode =
- {
- .enableWait = false,
- .enableStop = false,
- .enableDebug = false,
- },
- .enableInterrupt = false,
- .interruptTimeValue = 0x04u,
- };
- #endif
- #ifdef RT_USING_WDT2
- static wdog_config_t WDOG_2_config =
- {
- .timeoutValue = 0xffu,
- .enablePowerDown = false,
- .softwareResetExtension = false,
- .softwareAssertion = true,
- .softwareResetSignal = true,
- .enableWdog = true,
- .workMode =
- {
- .enableWait = false,
- .enableStop = false,
- .enableDebug = false,
- },
- .enableInterrupt = false,
- .interruptTimeValue = 0x04u,
- };
- #endif
- #ifdef RT_USING_WDT3
- static wdog_config_t WDOG_3_config =
- {
- .timeoutValue = 0xffu,
- .enablePowerDown = false,
- .softwareResetExtension = false,
- .softwareAssertion = true,
- .softwareResetSignal = true,
- .enableWdog = true,
- .workMode =
- {
- .enableWait = false,
- .enableStop = false,
- .enableDebug = false,
- },
- .enableInterrupt = false,
- .interruptTimeValue = 0x04u,
- };
- #endif
- static rt_watchdog_t imx6ull_watchdog[DEV_MAX] =
- {
- #ifdef RT_USING_WDT1
- {
- .name = "wdt1",
- .paddr = IMX6ULL_WATCHDOG1_BASE,
- .config = &WDOG_1_config,
- },
- #endif
- #ifdef RT_USING_WDT2
- {
- .name = "wdt2",
- .paddr = IMX6ULL_WATCHDOG2_BASE,
- .config = &WDOG_2_config,
- },
- #endif
- #ifdef RT_USING_WDT3
- {
- .name = "wdt3",
- .paddr = IMX6ULL_WATCHDOG3_BASE,
- .config = &WDOG_3_config,
- },
- #endif
- };
- static rt_err_t imx6ull_wdog_init(rt_watchdog_t *wdt)
- {
- WDOG_Type *base = RT_NULL;
- base = (WDOG_Type *)wdt->vaddr;
- WDOG_Init(base, wdt->config);
- WDOG_Disable(base);
- return RT_EOK;
- }
- static rt_err_t imx6ull_wdog_control(rt_watchdog_t *wdt, int cmd, void *args)
- {
- RT_ASSERT(wdt != NULL);
- WDOG_Type *base = RT_NULL;
- base = (WDOG_Type *)wdt->vaddr;
- switch(cmd)
- {
- case RT_DEVICE_CTRL_WDT_GET_TIMEOUT:
- {
- *(uint16_t *)args = (base->WCR >> 8) / 2;
- }
- break;
- case RT_DEVICE_CTRL_WDT_SET_TIMEOUT:
- {
- RT_ASSERT(*(uint16_t *)args != 0);
- WDOG_SetTimeoutValue(base, (*(uint16_t *)args) * 2);
- WDOG_Disable(base);
- }
- break;
- case RT_DEVICE_CTRL_WDT_KEEPALIVE:
- {
- WDOG_Refresh(base);
- }
- break;
- case RT_DEVICE_CTRL_WDT_START:
- {
- WDOG_Enable(base);
- }
- break;
- case RT_DEVICE_CTRL_WDT_STOP:
- {
- WDOG_Disable(base);
- }
- break;
- default:
- return RT_EINVAL;
- }
- return RT_EOK;
- }
- static struct rt_watchdog_ops imx6ull_wdog_ops =
- {
- .init = imx6ull_wdog_init,
- .control = imx6ull_wdog_control,
- };
- int rt_hw_wdt_init(void)
- {
- rt_err_t ret = RT_EOK;
- for(int idx = 0; idx < GET_ARRAY_NUM(imx6ull_watchdog); idx++)
- {
- imx6ull_watchdog[idx].ops = &imx6ull_wdog_ops;
- imx6ull_watchdog[idx].vaddr = platform_get_periph_vaddr(imx6ull_watchdog[idx].paddr);
- ret = rt_hw_watchdog_register(&imx6ull_watchdog[idx], imx6ull_watchdog[idx].name,
- RT_DEVICE_FLAG_DEACTIVATE, RT_NULL);
- if (ret != RT_EOK)
- {
- LOG_E("rt device register failed %d\n", ret);
- }
- }
- return ret;
- }
- INIT_DEVICE_EXPORT(rt_hw_wdt_init);
- #endif
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