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commit 3be1fc8cf4aa42a72c991a1f740109a2ea0c8155 Author: Daniel P. Carvalho <[email protected]> AuthorDate: Sat Oct 10 18:34:49 2026 -0300 boards/ev49n51a: register the watchdog as /dev/watchdog0. Register the PIC32MZ watchdog from the board bring-up when PIC32MZ_WDT is enabled and program a time-out of 8192 base periods. Assisted-by: Claude Code:claude-sonnet-5-5 Signed-off-by: Daniel P. Carvalho <[email protected]> --- boards/mips/pic32mz/ev49n51a/include/board.h | 9 ++++++--- boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c | 14 ++++++++++++++ 2 files changed, 20 insertions(+), 3 deletions(-) diff --git a/boards/mips/pic32mz/ev49n51a/include/board.h b/boards/mips/pic32mz/ev49n51a/include/board.h index 6c382045545..91d26bd40a9 100644 --- a/boards/mips/pic32mz/ev49n51a/include/board.h +++ b/boards/mips/pic32mz/ev49n51a/include/board.h @@ -109,11 +109,14 @@ #undef BOARD_PBCLK7_ENABLE #undef BOARD_PBCLK8_ENABLE -/* Watchdog pre-scaler (not yet used - WDT is left disabled by the - * reference config; revisit if/when WDT support is added for this chip). +/* Watchdog pre-scaler: the time-out is this value times the base period of + * the LPRC-clocked watchdog (CONFIG_PIC32MZ_WDT_BASE_US). It is programmed + * in the device configuration and cannot be changed at run time. The + * watchdog itself is started by software (PIC32MZ_WDT) unless + * CONFIG_PIC32MZ_WDTENABLE hardware-enables it from reset. */ -#define BOARD_WD_PRESCALER 1048576 +#define BOARD_WD_PRESCALER 8192 /* Ethernet MII management clock (MDC). * diff --git a/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c b/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c index 07ebc5ebb4c..1987ff66670 100644 --- a/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c +++ b/boards/mips/pic32mz/ev49n51a/src/pic32mz_bringup.c @@ -40,6 +40,10 @@ # include "pic32mz_w1_wlan.h" #endif +#ifdef CONFIG_PIC32MZ_WDT +# include "pic32mz_wdt.h" +#endif + #include "ev49n51a.h" /**************************************************************************** @@ -69,6 +73,16 @@ int pic32mz_bringup(void) } #endif +#ifdef CONFIG_PIC32MZ_WDT + /* Watchdog timer */ + + ret = pic32mz_wdt_initialize(CONFIG_WATCHDOG_DEVPATH); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: Failed to register the watchdog: %d\n", ret); + } +#endif + #if defined(CONFIG_MTD_SST26) && defined(CONFIG_PIC32MZ_SPI1) struct spi_dev_s *spi; struct mtd_dev_s *mtd;
