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deep sleep: don't use protected DPORT access in wake stub

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This commit is contained in:
Ivan Grokhotkov 2017-09-01 18:35:42 +08:00
parent 5666fc0a56
commit b9ff771e2c
1 changed files with 4 additions and 2 deletions
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6
components/esp32/sleep_modes.c
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@ -100,8 +100,10 @@ void esp_set_deep_sleep_wake_stub(esp_deep_sleep_wake_stub_fn_t new_stub)
void RTC_IRAM_ATTR esp_default_wake_deep_sleep(void) {
/* Clear MMU for CPU 0 */
DPORT_REG_SET_BIT(DPORT_PRO_CACHE_CTRL1_REG, DPORT_PRO_CACHE_MMU_IA_CLR);
DPORT_REG_CLR_BIT(DPORT_PRO_CACHE_CTRL1_REG, DPORT_PRO_CACHE_MMU_IA_CLR);
_DPORT_REG_WRITE(DPORT_PRO_CACHE_CTRL1_REG,
_DPORT_REG_READ(DPORT_PRO_CACHE_CTRL1_REG) | DPORT_PRO_CACHE_MMU_IA_CLR);
_DPORT_REG_WRITE(DPORT_PRO_CACHE_CTRL1_REG,
_DPORT_REG_READ(DPORT_PRO_CACHE_CTRL1_REG) & (~DPORT_PRO_CACHE_MMU_IA_CLR));
#if CONFIG_ESP32_DEEP_SLEEP_WAKEUP_DELAY > 0
// ROM code has not started yet, so we need to set delay factor
// used by ets_delay_us first.