bootloader: move timer_init to jump_to_firmware

bootloader/bootloader.c

@@ -33,7 +33,6 @@
 #include "signatures.h"
 #include "layout.h"
 #include "rng.h"
-#include "timer.h"
 #include "memory.h"
 
 void layoutFirmwareFingerprint(const uint8_t *hash)
@@ -133,7 +132,6 @@ int main(void)
 		int signed_firmware = signatures_new_ok(hdr, fingerprint);
 		if (SIG_OK != signed_firmware) {
 			show_unofficial_warning(fingerprint);
-			timer_init();
 		}
 
 		if (SIG_OK != check_firmware_hashes(hdr)) {

util.h

@@ -27,6 +27,7 @@
 #if !EMULATOR
 #include <libopencm3/cm3/scb.h>
 #include <libopencm3/cm3/vector.h>
+#include "timer.h"
 #endif
 
 // Statement expressions make these macros side-effect safe
@@ -68,6 +69,7 @@ static inline void __attribute__((noreturn)) jump_to_firmware(const vector_table
 		// Set stack pointer
 		__asm__ volatile("msr msp, %0" :: "r" (vector_table->initial_sp_value));
 	} else {                                  // untrusted firmware
+		timer_init();
 		mpu_config_firmware();                // * configure MPU for the firmware
 		__asm__ volatile("msr msp, %0" :: "r" (_stack));
 	}