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feat(hal): disable P4 TG WDT clock by default

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This commit is contained in:
wuzhenghui
2026-06-15 10:31:06 +08:00
parent 85081d2414
commit 691dc44d6f
5 changed files with 27 additions and 13 deletions
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components/esp_hal_wdt/esp32p4/include/hal/mwdt_ll.h
+14 -8
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022-2025 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -289,16 +289,22 @@ FORCE_INLINE_ATTR void mwdt_ll_set_clock_source(timg_dev_t *hw, mwdt_clock_sourc
* @param en true to enable, false to disable
*/
__attribute__((always_inline))
static inline void mwdt_ll_enable_clock(timg_dev_t *hw, bool en)
static inline void _mwdt_ll_enable_clock(timg_dev_t *hw, bool en)
{
/* The clock always defaults to enabled on P4.
If we update to be able to enable/disable the clock then this function
needs to be protected with PERIPH_RCC_ATOMIC as it touches shared registers.
*/
(void)hw;
(void)en;
if (hw == &TIMERG0) {
HP_SYS_CLKRST.peri_clk_ctrl20.reg_timergrp0_wdt_clk_en = en;
} else {
HP_SYS_CLKRST.peri_clk_ctrl21.reg_timergrp1_wdt_clk_en = en;
}
}
/// use a macro to wrap the function, force the caller to use it in a critical section
/// the critical section needs to declare the __DECLARE_RCC_ATOMIC_ENV variable in advance
#define mwdt_ll_enable_clock(...) do { \
(void)__DECLARE_RCC_ATOMIC_ENV; \
_mwdt_ll_enable_clock(__VA_ARGS__); \
} while(0)
#ifdef __cplusplus
}
#endif
components/esp_hal_wdt/esp32p4/rom.wdt.ld
+2 -2
View File
@@ -18,8 +18,8 @@
***************************************/
/* Functions */
wdt_hal_init = 0x4fc001fc;
wdt_hal_deinit = 0x4fc00200;
rom_wdt_hal_init = 0x4fc001fc;
rom_wdt_hal_deinit = 0x4fc00200;
rom_wdt_hal_config_stage = 0x4fc00204;
wdt_hal_write_protect_disable = 0x4fc00208;
wdt_hal_write_protect_enable = 0x4fc0020c;
components/esp_hal_wdt/rom_patch.c
+4
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@@ -21,6 +21,8 @@ void wdt_hal_init(wdt_hal_context_t *hal, wdt_inst_t wdt_inst, uint32_t prescale
if (hal->inst != WDT_RWDT) {
mwdt_ll_write_protect_disable(hal->mwdt_dev);
mwdt_ll_set_clock_source(hal->mwdt_dev, MWDT_CLK_SRC_DEFAULT);
// To suppress build errors about spinlock's __DECLARE_RCC_ATOMIC_ENV
int __DECLARE_RCC_ATOMIC_ENV __attribute__((unused));
mwdt_ll_enable_clock(hal->mwdt_dev, true);
mwdt_ll_write_protect_enable(hal->mwdt_dev);
}
@@ -31,6 +33,8 @@ void wdt_hal_deinit(wdt_hal_context_t *hal)
// ROM version omits mwdt_ll_enable_clock(false) — delegate to ROM then fix up
if (hal->inst != WDT_RWDT) {
mwdt_ll_write_protect_disable(hal->mwdt_dev);
// To suppress build errors about spinlock's __DECLARE_RCC_ATOMIC_ENV
int __DECLARE_RCC_ATOMIC_ENV __attribute__((unused));
mwdt_ll_enable_clock(hal->mwdt_dev, false);
mwdt_ll_write_protect_enable(hal->mwdt_dev);
}
components/esp_hal_wdt/wdt_hal_iram.c
+5 -1
View File
@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -79,6 +79,8 @@ void wdt_hal_init(wdt_hal_context_t *hal, wdt_inst_t wdt_inst, uint32_t prescale
mwdt_ll_set_cpu_reset_length(hal->mwdt_dev, WDT_RESET_SIG_LENGTH_3_2us);
mwdt_ll_set_sys_reset_length(hal->mwdt_dev, WDT_RESET_SIG_LENGTH_3_2us);
mwdt_ll_set_clock_source(hal->mwdt_dev, MWDT_CLK_SRC_DEFAULT);
// To suppress build errors about spinlock's __DECLARE_RCC_ATOMIC_ENV
int __DECLARE_RCC_ATOMIC_ENV __attribute__((unused));
mwdt_ll_enable_clock(hal->mwdt_dev, true);
//Set tick period
mwdt_ll_set_prescaler(hal->mwdt_dev, prescaler);
@@ -107,6 +109,8 @@ void wdt_hal_deinit(wdt_hal_context_t *hal)
mwdt_ll_disable(hal->mwdt_dev);
mwdt_ll_clear_intr_status(hal->mwdt_dev);
mwdt_ll_set_intr_enable(hal->mwdt_dev, false);
// To suppress build errors about spinlock's __DECLARE_RCC_ATOMIC_ENV
int __DECLARE_RCC_ATOMIC_ENV __attribute__((unused));
mwdt_ll_enable_clock(hal->mwdt_dev, false);
//Lock WDT
mwdt_ll_write_protect_enable(hal->mwdt_dev);