refactor(core): introduce startup_init.c

[no changelog]

core/embed/models/T2T1/compat_settings.c

@@ -1,4 +1,26 @@
+/*
+ * This file is part of the Trezor project, https://trezor.io/
+ *
+ * Copyright (c) SatoshiLabs
+ *
+ * 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 "platform.h"
+#include "startup_init.h"
 
-void ensure_compatible_settings(void) { set_core_clock(CLOCK_168_MHZ); }
+void ensure_compatible_settings(void) {
+  // Early version of bootloader on T2T1 expects 168 MHz core clock.
+  // So we need to set it here before handover to the bootloader.
+  set_core_clock(CLOCK_168_MHZ);
+}

core/embed/trezorhal/stm32f4/platform.h

@@ -23,15 +23,6 @@
 #include STM32_HAL_H
 #include <stdint.h>
 
-typedef enum {
-  CLOCK_180_MHZ = 0,
-  CLOCK_168_MHZ = 1,
-  CLOCK_120_MHZ = 2,
-} clock_settings_t;
-
-void set_core_clock(clock_settings_t settings);
-// the following functions are defined in util.s
-
 void memset_reg(volatile void *start, volatile void *stop, uint32_t val);
 void jump_to(uint32_t address);
 void jump_to_with_flag(uint32_t address, uint32_t register_flag);

core/embed/trezorhal/stm32f4/startup_init.c

@@ -19,6 +19,7 @@
 
 #include STM32_HAL_H
 
+#include "startup_init.h"
 #include "platform.h"
 #include "rng.h"
 #include "systick.h"

core/embed/trezorhal/stm32f4/startup_init.h

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the Trezor project, https://trezor.io/
+ *
+ * Copyright (c) SatoshiLabs
+ *
+ * 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/>.
+ */
+
+#ifndef TREZORHAL_STM32F4_STARTUP_INIT_H
+#define TREZORHAL_STM32F4_STARTUP_INIT_H
+
+#ifdef TREZOR_MODEL_T
+
+typedef enum {
+  CLOCK_180_MHZ = 0,
+  CLOCK_168_MHZ = 1,
+  CLOCK_120_MHZ = 2,
+} clock_settings_t;
+
+// Alters core clock frequency
+void set_core_clock(clock_settings_t settings);
+
+#endif
+
+#endif  // TREZORHAL_STM32F4_STARTUP_INIT_H

core/embed/trezorhal/stm32f4/system.c

@@ -29,6 +29,10 @@
 #include "systick.h"
 #include "systimer.h"
 
+#if defined(TREZOR_MODEL_T) && (!defined(BOARDLOADER))
+#include "startup_init.h"
+#endif
+
 #ifndef HardFault_IRQn
 #define HardFault_IRQn (-13)  // not defined in stm32lib/cmsis/stm32429xx.h
 #endif

core/site_scons/models/stm32f4_common.py

@@ -51,10 +51,10 @@ def stm32f4_common_files(env, defines, sources, paths):
         "embed/trezorhal/stm32f4/lowlevel.c",
         "embed/trezorhal/stm32f4/monoctr.c",
         "embed/trezorhal/stm32f4/mpu.c",
-        "embed/trezorhal/stm32f4/platform.c",
         "embed/trezorhal/stm32f4/random_delays.c",
         "embed/trezorhal/stm32f4/rng.c",
         "embed/trezorhal/stm32f4/secret.c",
+        "embed/trezorhal/stm32f4/startup_init.c",
         "embed/trezorhal/stm32f4/syscall.c",
         "embed/trezorhal/stm32f4/syscall_dispatch.c",
         "embed/trezorhal/stm32f4/syscall_probe.c",

core/site_scons/models/stm32u5_common.py

@@ -61,11 +61,11 @@ def stm32u5_common_files(env, defines, sources, paths):
         "embed/trezorhal/stm32u5/hash_processor.c",
         "embed/trezorhal/stm32u5/monoctr.c",
         "embed/trezorhal/stm32u5/mpu.c",
-        "embed/trezorhal/stm32u5/platform.c",
         "embed/trezorhal/stm32u5/random_delays.c",
         "embed/trezorhal/stm32u5/rng.c",
         "embed/trezorhal/stm32u5/secret.c",
         "embed/trezorhal/stm32u5/secure_aes.c",
+        "embed/trezorhal/stm32u5/startup_init.c",
         "embed/trezorhal/stm32u5/syscall.c",
         "embed/trezorhal/stm32u5/syscall_dispatch.c",
         "embed/trezorhal/stm32u5/syscall_probe.c",