1 files changed, 54 insertions, 0 deletions
diff --git a/platforms/chibios/bootloaders/ignition.c b/platforms/chibios/bootloaders/ignition.c
new file mode 100644
index 0000000000..00d55db2b8
--- /dev/null
+++ b/platforms/chibios/bootloaders/ignition.c
@@ -0,0 +1,54 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "bootloader.h"
+
+#include <ch.h>
+#include <hal.h>
+#include "wait.h"
+#include "gpio.h"
+
+#define APP_ADDRESS 0x08002000
+
+__attribute__((weak)) void bootloader_jump(void) {
+    // The ignition bootloader is checking for a high signal on A8 for 100ms when powering on the board.
+    // Setting both A8 and A9 high will charge the capacitor quickly.
+    // Setting A9 low before reset will cause the capacitor to discharge
+    // thus making the bootloder unlikely to trigger twice between power cycles.
+    setPinOutputPushPull(A9);
+    setPinOutputPushPull(A8);
+    writePinHigh(A9);
+    writePinHigh(A8);
+    wait_ms(500);
+    writePinLow(A9);
+
+    NVIC_SystemReset();
+}
+
+__attribute__((weak)) void mcu_reset(void) {
+    // When resetting the MCU, we want to jump to the application.
+    SCB->AIRCR = APP_ADDRESS & 0xFFFF;
+
+    // Set the stack pointer to the applications stack pointer
+    __asm__ volatile("msr msp, %0" ::"g"(*(volatile uint32_t *)APP_ADDRESS));
+
+    // Jump to the application
+    (*(void (**)())(APP_ADDRESS + 4))();
+    while (1)
+        ;
+}
+
+__attribute__((weak)) void enter_bootloader_mode_if_requested(void) {}
+\ No newline at end of file