function rename _add_sdram_to_heap and small refactoring

Author: snkYmkrct

ports/stm/boards/daisy_seed_with_sdram/board.c

@@ -6,9 +6,9 @@
 #include STM32_HAL_H
 
 #include "supervisor/board.h"
+#include "supervisor/stm.h"
 #include "sdram.h"
 
-extern void port_add_sdram_to_heap(void);
 
 /** SDRAM banks configuration. */
 static const struct stm32_sdram_bank_config bank_config[] = {
@@ -38,7 +38,7 @@ static const struct stm32_sdram_bank_config bank_config[] = {
 /* SDRAM configuration. */
 static const struct stm32_sdram_config config = {
     .sdram = FMC_SDRAM_DEVICE,
-    .power_up_delay = 0,
+    .power_up_delay = 100,
     .num_auto_refresh = 8,
     .mode_register = SDRAM_MODEREG_BURST_LENGTH_4 |
         SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL |
@@ -56,5 +56,5 @@ static const struct stm32_sdram_config config = {
 void board_init(void) {
     sdram_init(&config);
 //    sdram_test(true);
-    port_add_sdram_to_heap();
+    stm_add_sdram_to_heap();
 }

ports/stm/peripherals/sdram.c

@@ -144,7 +144,7 @@ static void sdram_init_seq(const struct stm32_sdram_config *config) {
     command.CommandMode = FMC_SDRAM_CMD_CLK_ENABLE;
     HAL_SDRAM_SendCommand(&hsdram, &command, HAL_MAX_DELAY);
 
-    HAL_Delay(100);
+    HAL_Delay(config->power_up_delay);
 
     /* Configure a PALL (precharge all) command */
     command.CommandMode = FMC_SDRAM_CMD_PALL;

ports/stm/supervisor/port.c

@@ -43,6 +43,7 @@ void NVIC_SystemReset(void) NORETURN;
 
 #if (CPY_STM32H7) || (CPY_STM32F7)
 #if defined(CIRCUITPY_HW_SDRAM_SIZE)
+#include "stm.h"
 #include "sdram.h"
 #include <stdbool.h>
 #include <stddef.h>
@@ -184,7 +185,7 @@ void port_heap_init(void) {
     // heap init in _port_heap_init called from port_init
 }
 
-void port_add_sdram_to_heap(void) {
+void stm_add_sdram_to_heap(void) {
     size_t sdram_memory_size = sdram_size();
     pools[1] = tlsf_add_pool(_heap, sdram_start(), sdram_memory_size);
 }

ports/stm/supervisor/stm.h

@@ -0,0 +1,10 @@
+// This file is part of the CircuitPython project: https://circuitpython.org
+//
+// SPDX-FileCopyrightText: Copyright (c) 2025 snkYmkrct
+//
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+
+void stm_add_sdram_to_heap(void);