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rp2040: Move watchdog code to new watchdog.c file 

Move the watchdog code to its own file so that it is easier to disable
it for development builds.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2022-12-14 19:21:25 -05:00
parent 9b342c65c8
commit fe0fc29616
3 changed files with 32 additions and 27 deletions
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5
src/rp2040/Makefile
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@ -9,9 +9,10 @@ CFLAGS += -mcpu=cortex-m0plus -mthumb -Ilib/cmsis-core
CFLAGS += -Ilib/rp2040 -Ilib/rp2040/cmsis_include -Ilib/fast-hash -Ilib/can2040
# Add source files
src-y += rp2040/main.c rp2040/gpio.c rp2040/adc.c generic/crc16_ccitt.c
src-y += rp2040/main.c rp2040/watchdog.c rp2040/gpio.c
src-y += rp2040/adc.c rp2040/timer.c rp2040/bootrom.c
src-y += generic/armcm_boot.c generic/armcm_irq.c generic/armcm_reset.c
src-y += generic/timer_irq.c rp2040/timer.c rp2040/bootrom.c
src-y += generic/timer_irq.c generic/crc16_ccitt.c
src-$(CONFIG_USBSERIAL) += rp2040/usbserial.c generic/usb_cdc.c
src-$(CONFIG_USBSERIAL) += rp2040/chipid.c
src-$(CONFIG_SERIAL) += rp2040/serial.c generic/serial_irq.c

25
src/rp2040/main.c
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@ -9,7 +9,6 @@
#include "generic/armcm_reset.h" // try_request_canboot
#include "hardware/structs/clocks.h" // clock_hw_t
#include "hardware/structs/pll.h" // pll_hw_t
#include "hardware/structs/psm.h" // psm_hw
#include "hardware/structs/resets.h" // sio_hw
#include "hardware/structs/watchdog.h" // watchdog_hw
#include "hardware/structs/xosc.h" // xosc_hw
@ -17,30 +16,6 @@
#include "sched.h" // sched_main
/****************************************************************
* watchdog handler
****************************************************************/
void
watchdog_reset(void)
{
watchdog_hw->load = 0x800000; // ~350ms
}
DECL_TASK(watchdog_reset);
void
watchdog_init(void)
{
psm_hw->wdsel = PSM_WDSEL_BITS & ~(PSM_WDSEL_ROSC_BITS|PSM_WDSEL_XOSC_BITS);
watchdog_reset();
watchdog_hw->ctrl = (WATCHDOG_CTRL_PAUSE_DBG0_BITS
| WATCHDOG_CTRL_PAUSE_DBG1_BITS
| WATCHDOG_CTRL_PAUSE_JTAG_BITS
| WATCHDOG_CTRL_ENABLE_BITS);
}
DECL_INIT(watchdog_init);
/****************************************************************
* Bootloader
****************************************************************/

29
src/rp2040/watchdog.c Normal file
View File

@ -0,0 +1,29 @@
// Watchdog code on rp2040
//
// Copyright (C) 2021-2022 Kevin O'Connor <kevin@koconnor.net>
//
// This file may be distributed under the terms of the GNU GPLv3 license.
#include <stdint.h> // uint32_t
#include "hardware/structs/psm.h" // psm_hw
#include "hardware/structs/watchdog.h" // watchdog_hw
#include "sched.h" // DECL_TASK
void
watchdog_reset(void)
{
watchdog_hw->load = 0x800000; // ~350ms
}
DECL_TASK(watchdog_reset);
void
watchdog_init(void)
{
psm_hw->wdsel = PSM_WDSEL_BITS & ~(PSM_WDSEL_ROSC_BITS|PSM_WDSEL_XOSC_BITS);
watchdog_reset();
watchdog_hw->ctrl = (WATCHDOG_CTRL_PAUSE_DBG0_BITS
| WATCHDOG_CTRL_PAUSE_DBG1_BITS
| WATCHDOG_CTRL_PAUSE_JTAG_BITS
| WATCHDOG_CTRL_ENABLE_BITS);
}
DECL_INIT(watchdog_init);