Merge branch '6.3.x-cherry-pick-from-main' of https://github.com/dhalbert/circuitpython into 6.3.x-cherry-pick-from-main

.github/workflows/build.yml

@@ -494,7 +494,7 @@ jobs:
       id: idf-cache
       with:
         path: ${{ github.workspace }}/.idf_tools
-        key: ${{ runner.os }}-idf-tools-${{ hashFiles('.git/modules/ports/esp32s2/esp-idf/HEAD') }}-20210513
+        key: ${{ runner.os }}-idf-tools-${{ hashFiles('.git/modules/ports/esp32s2/esp-idf/HEAD') }}-20210518
     - name: Clone IDF submodules
       run: |
         (cd $IDF_PATH && git submodule update --init)

ports/raspberrypi/supervisor/port.c

@@ -196,13 +196,13 @@ uint32_t *port_heap_get_top(void) {
     return port_stack_get_top();
 }
 
+extern uint32_t __scratch_x_start__;
 void port_set_saved_word(uint32_t value) {
-    // NOTE: This doesn't survive pressing the reset button (aka toggling RUN).
-    watchdog_hw->scratch[0] = value;
+    __scratch_x_start__ = value;
 }
 
 uint32_t port_get_saved_word(void) {
-    return watchdog_hw->scratch[0];
+    return __scratch_x_start__;
 }
 
 uint64_t port_get_raw_ticks(uint8_t *subticks) {

supervisor/shared/safe_mode.c

@@ -78,7 +78,7 @@ safe_mode_t wait_for_safe_mode_reset(void) {
     #endif
     uint64_t start_ticks = supervisor_ticks_ms64();
     uint64_t diff = 0;
-    while (diff < 700) {
+    while (diff < 1000) {
         #ifdef MICROPY_HW_LED_STATUS
         // Blink on for 100, off for 100, on for 100, off for 100 and on for 200
         common_hal_digitalio_digitalinout_set_value(&status_led, diff > 100 && diff / 100 != 2 && diff / 100 != 4);