Bring supported STM32F4 configs in line with F4x1 (#24413)

Co-authored-by: Sergey Vlasov <sigprof@gmail.com>

19 files changed, 142 insertions, 188 deletions

diff --git a/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/config.h b/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/config.h
index 90a41326a1..5333a919a0 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/config.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F405XG/configs/config.h
@@ -21,3 +21,13 @@
 #ifndef EARLY_INIT_PERFORM_BOOTLOADER_JUMP
 #    define EARLY_INIT_PERFORM_BOOTLOADER_JUMP TRUE
 #endif
+
+#ifdef WEAR_LEVELING_EMBEDDED_FLASH
+#    ifndef WEAR_LEVELING_EFL_FIRST_SECTOR
+#        ifdef BOOTLOADER_TINYUF2
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 3
+#        else
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 1
+#        endif
+#    endif
+#endif
diff --git a/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/config.h b/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/config.h
index 90a41326a1..5333a919a0 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/config.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F407XE/configs/config.h
@@ -21,3 +21,13 @@
 #ifndef EARLY_INIT_PERFORM_BOOTLOADER_JUMP
 #    define EARLY_INIT_PERFORM_BOOTLOADER_JUMP TRUE
 #endif
+
+#ifdef WEAR_LEVELING_EMBEDDED_FLASH
+#    ifndef WEAR_LEVELING_EFL_FIRST_SECTOR
+#        ifdef BOOTLOADER_TINYUF2
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 3
+#        else
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 1
+#        endif
+#    endif
+#endif
diff --git a/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/config.h b/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/config.h
index cbb98f9098..362327efde 100644
--- a/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/config.h
+++ b/platforms/chibios/boards/GENERIC_STM32_F446XE/configs/config.h
@@ -17,3 +17,13 @@
 #ifndef EARLY_INIT_PERFORM_BOOTLOADER_JUMP
 #    define EARLY_INIT_PERFORM_BOOTLOADER_JUMP TRUE
 #endif
+
+#ifdef WEAR_LEVELING_EMBEDDED_FLASH
+#    ifndef WEAR_LEVELING_EFL_FIRST_SECTOR
+#        ifdef BOOTLOADER_TINYUF2
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 3
+#        else
+#            define WEAR_LEVELING_EFL_FIRST_SECTOR 1
+#        endif
+#    endif
+#endif
diff --git a/platforms/chibios/boards/common/ld/STM32F401xC.ld b/platforms/chibios/boards/common/ld/STM32F401xC.ld
index 8bc1cda09c..64f019706f 100644
--- a/platforms/chibios/boards/common/ld/STM32F401xC.ld
+++ b/platforms/chibios/boards/common/ld/STM32F401xC.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 256k;
-f4xx_ram_size = 64k;
+f4xx_ram1_size = 64k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F401xC_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F401xC_tinyuf2.ld
index 9e0306bde8..05aa51917f 100644
--- a/platforms/chibios/boards/common/ld/STM32F401xC_tinyuf2.ld
+++ b/platforms/chibios/boards/common/ld/STM32F401xC_tinyuf2.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 256k;
-f4xx_ram_size = 64k;
+f4xx_ram1_size = 64k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F401xE.ld b/platforms/chibios/boards/common/ld/STM32F401xE.ld
index 3c2a93bd30..6c72c8f127 100644
--- a/platforms/chibios/boards/common/ld/STM32F401xE.ld
+++ b/platforms/chibios/boards/common/ld/STM32F401xE.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 512k;
-f4xx_ram_size = 96k;
+f4xx_ram1_size = 96k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F401xE_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F401xE_tinyuf2.ld
index a7fa419cfb..65272ec015 100644
--- a/platforms/chibios/boards/common/ld/STM32F401xE_tinyuf2.ld
+++ b/platforms/chibios/boards/common/ld/STM32F401xE_tinyuf2.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 512k;
-f4xx_ram_size = 96k;
+f4xx_ram1_size = 96k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F405xG.ld b/platforms/chibios/boards/common/ld/STM32F405xG.ld
index b7d0baa210..d9468e18c5 100644
--- a/platforms/chibios/boards/common/ld/STM32F405xG.ld
+++ b/platforms/chibios/boards/common/ld/STM32F405xG.ld
@@ -1,86 +1,13 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
-
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-        http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
-*/
-
-/*
- * STM32F405xG memory setup.
- * Note: Use of ram1 and ram2 is mutually exclusive with use of ram0.
+ * Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
-MEMORY
-{
-    flash0 (rx) : org = 0x08000000, len = 16k      /* Sector 0    - Init code as ROM bootloader assumes application starts here */
-    flash1 (rx) : org = 0x08004000, len = 16k      /* Sector 1    - Emulated eeprom */
-    flash2 (rx) : org = 0x08008000, len = 1M - 32k /* Sector 2..6 - Rest of firmware */
-    flash3 (rx) : org = 0x00000000, len = 0
-    flash4 (rx) : org = 0x00000000, len = 0
-    flash5 (rx) : org = 0x00000000, len = 0
-    flash6 (rx) : org = 0x00000000, len = 0
-    flash7 (rx) : org = 0x00000000, len = 0
-    ram0   (wx) : org = 0x20000000, len = 128k      /* SRAM1 + SRAM2 */
-    ram1   (wx) : org = 0x20000000, len = 112k      /* SRAM1 */
-    ram2   (wx) : org = 0x2001C000, len = 16k       /* SRAM2 */
-    ram3   (wx) : org = 0x00000000, len = 0
-    ram4   (wx) : org = 0x10000000, len = 64k       /* CCM SRAM */
-    ram5   (wx) : org = 0x40024000, len = 4k        /* BCKP SRAM */
-    ram6   (wx) : org = 0x00000000, len = 0
-    ram7   (wx) : org = 0x00000000, len = 0
-}
-
-/* For each data/text section two region are defined, a virtual region
-   and a load region (_LMA suffix).*/
-
-/* Flash region to be used for exception vectors.*/
-REGION_ALIAS("VECTORS_FLASH", flash0);
-REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
-
-/* Flash region to be used for constructors and destructors.*/
-REGION_ALIAS("XTORS_FLASH", flash2);
-REGION_ALIAS("XTORS_FLASH_LMA", flash2);
-
-/* Flash region to be used for code text.*/
-REGION_ALIAS("TEXT_FLASH", flash2);
-REGION_ALIAS("TEXT_FLASH_LMA", flash2);
-
-/* Flash region to be used for read only data.*/
-REGION_ALIAS("RODATA_FLASH", flash2);
-REGION_ALIAS("RODATA_FLASH_LMA", flash2);
-
-/* Flash region to be used for various.*/
-REGION_ALIAS("VARIOUS_FLASH", flash2);
-REGION_ALIAS("VARIOUS_FLASH_LMA", flash2);
-
-/* Flash region to be used for RAM(n) initialization data.*/
-REGION_ALIAS("RAM_INIT_FLASH_LMA", flash2);
-
-/* RAM region to be used for Main stack. This stack accommodates the processing
-   of all exceptions and interrupts.*/
-REGION_ALIAS("MAIN_STACK_RAM", ram0);
-
-/* RAM region to be used for the process stack. This is the stack used by
-   the main() function.*/
-REGION_ALIAS("PROCESS_STACK_RAM", ram0);
-
-/* RAM region to be used for data segment.*/
-REGION_ALIAS("DATA_RAM", ram0);
-REGION_ALIAS("DATA_RAM_LMA", flash2);
-
-/* RAM region to be used for BSS segment.*/
-REGION_ALIAS("BSS_RAM", ram0);
 
-/* RAM region to be used for the default heap.*/
-REGION_ALIAS("HEAP_RAM", ram0);
+f4xx_flash_size = 1M;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 64k;
+f4xx_ram5_size = 4k;
 
-/* Generic rules inclusion.*/
-INCLUDE rules.ld
+INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F405xG_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F405xG_tinyuf2.ld
index 1ee4aa1a06..51c4b625ac 100644
--- a/platforms/chibios/boards/common/ld/STM32F405xG_tinyuf2.ld
+++ b/platforms/chibios/boards/common/ld/STM32F405xG_tinyuf2.ld
@@ -1,89 +1,13 @@
 /*
-    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
-
-    Licensed under the Apache License, Version 2.0 (the "License");
-    you may not use this file except in compliance with the License.
-    You may obtain a copy of the License at
-
-        http://www.apache.org/licenses/LICENSE-2.0
-
-    Unless required by applicable law or agreed to in writing, software
-    distributed under the License is distributed on an "AS IS" BASIS,
-    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-    See the License for the specific language governing permissions and
-    limitations under the License.
-*/
-
-/*
- * STM32F405xG memory setup.
- * Note: Use of ram1 and ram2 is mutually exclusive with use of ram0.
+ * Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
  */
-MEMORY
-{
-    flash0 (rx) : org = 0x08000000 + 64k, len = 1M - 64k /* tinyuf2 bootloader requires app to be located at 64k offset for this MCU */
-    flash1 (rx) : org = 0x00000000, len = 0
-    flash2 (rx) : org = 0x00000000, len = 0
-    flash3 (rx) : org = 0x00000000, len = 0
-    flash4 (rx) : org = 0x00000000, len = 0
-    flash5 (rx) : org = 0x00000000, len = 0
-    flash6 (rx) : org = 0x00000000, len = 0
-    flash7 (rx) : org = 0x00000000, len = 0
-    ram0   (wx) : org = 0x20000000, len = 128k      /* SRAM1 + SRAM2 */
-    ram1   (wx) : org = 0x20000000, len = 112k      /* SRAM1 */
-    ram2   (wx) : org = 0x2001C000, len = 16k       /* SRAM2 */
-    ram3   (wx) : org = 0x00000000, len = 0
-    ram4   (wx) : org = 0x10000000, len = 64k       /* CCM SRAM */
-    ram5   (wx) : org = 0x40024000, len = 4k        /* BCKP SRAM */
-    ram6   (wx) : org = 0x00000000, len = 0
-    ram7   (wx) : org = 0x00000000, len = 0
-}
-
-/* For each data/text section two region are defined, a virtual region
-   and a load region (_LMA suffix).*/
-
-/* Flash region to be used for exception vectors.*/
-REGION_ALIAS("VECTORS_FLASH", flash0);
-REGION_ALIAS("VECTORS_FLASH_LMA", flash0);
-
-/* Flash region to be used for constructors and destructors.*/
-REGION_ALIAS("XTORS_FLASH", flash0);
-REGION_ALIAS("XTORS_FLASH_LMA", flash0);
-
-/* Flash region to be used for code text.*/
-REGION_ALIAS("TEXT_FLASH", flash0);
-REGION_ALIAS("TEXT_FLASH_LMA", flash0);
-
-/* Flash region to be used for read only data.*/
-REGION_ALIAS("RODATA_FLASH", flash0);
-REGION_ALIAS("RODATA_FLASH_LMA", flash0);
-
-/* Flash region to be used for various.*/
-REGION_ALIAS("VARIOUS_FLASH", flash0);
-REGION_ALIAS("VARIOUS_FLASH_LMA", flash0);
-
-/* Flash region to be used for RAM(n) initialization data.*/
-REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0);
-
-/* RAM region to be used for Main stack. This stack accommodates the processing
-   of all exceptions and interrupts.*/
-REGION_ALIAS("MAIN_STACK_RAM", ram0);
-
-/* RAM region to be used for the process stack. This is the stack used by
-   the main() function.*/
-REGION_ALIAS("PROCESS_STACK_RAM", ram0);
-
-/* RAM region to be used for data segment.*/
-REGION_ALIAS("DATA_RAM", ram0);
-REGION_ALIAS("DATA_RAM_LMA", flash0);
-
-/* RAM region to be used for BSS segment.*/
-REGION_ALIAS("BSS_RAM", ram0);
-
-/* RAM region to be used for the default heap.*/
-REGION_ALIAS("HEAP_RAM", ram0);
 
-/* Generic rules inclusion.*/
-INCLUDE rules.ld
+f4xx_flash_size = 1M;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 64k;
+f4xx_ram5_size = 4k;
 
-/* TinyUF2 bootloader reset support */
-_board_dfu_dbl_tap = ORIGIN(ram0) + 64k - 4; /* this is based off the linker file for tinyuf2 */
+INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F407xE.ld b/platforms/chibios/boards/common/ld/STM32F407xE.ld
new file mode 100644
index 0000000000..66dd991163
--- /dev/null
+++ b/platforms/chibios/boards/common/ld/STM32F407xE.ld
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+f4xx_flash_size = 512k;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 64k;
+f4xx_ram5_size = 4k;
+
+INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F407xE_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F407xE_tinyuf2.ld
new file mode 100644
index 0000000000..0cb7b89636
--- /dev/null
+++ b/platforms/chibios/boards/common/ld/STM32F407xE_tinyuf2.ld
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+f4xx_flash_size = 512k;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 64k;
+f4xx_ram5_size = 4k;
+
+INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F411xC.ld b/platforms/chibios/boards/common/ld/STM32F411xC.ld
index 7827c9c7d2..5e3f7e034b 100644
--- a/platforms/chibios/boards/common/ld/STM32F411xC.ld
+++ b/platforms/chibios/boards/common/ld/STM32F411xC.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 256k;
-f4xx_ram_size = 128k;
+f4xx_ram1_size = 128k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F411xC_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F411xC_tinyuf2.ld
index 0367b49f8f..63a33309fd 100644
--- a/platforms/chibios/boards/common/ld/STM32F411xC_tinyuf2.ld
+++ b/platforms/chibios/boards/common/ld/STM32F411xC_tinyuf2.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 256k;
-f4xx_ram_size = 128k;
+f4xx_ram1_size = 128k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F411xE.ld b/platforms/chibios/boards/common/ld/STM32F411xE.ld
index c621ede53a..c798a775e9 100644
--- a/platforms/chibios/boards/common/ld/STM32F411xE.ld
+++ b/platforms/chibios/boards/common/ld/STM32F411xE.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 512k;
-f4xx_ram_size = 128k;
+f4xx_ram1_size = 128k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F411xE_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F411xE_tinyuf2.ld
index d982f7fb8f..25253f5590 100644
--- a/platforms/chibios/boards/common/ld/STM32F411xE_tinyuf2.ld
+++ b/platforms/chibios/boards/common/ld/STM32F411xE_tinyuf2.ld
@@ -5,6 +5,9 @@
  */
 
 f4xx_flash_size = 512k;
-f4xx_ram_size = 128k;
+f4xx_ram1_size = 128k;
+f4xx_ram2_size = 0;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 0;
 
 INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F446xE.ld b/platforms/chibios/boards/common/ld/STM32F446xE.ld
new file mode 100644
index 0000000000..6e6c5dd3a4
--- /dev/null
+++ b/platforms/chibios/boards/common/ld/STM32F446xE.ld
@@ -0,0 +1,13 @@
+/*
+ * Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+f4xx_flash_size = 512k;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 4k;
+
+INCLUDE stm32f4xx_common.ld
diff --git a/platforms/chibios/boards/common/ld/STM32F446xE_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F446xE_tinyuf2.ld
new file mode 100644
index 0000000000..676ffbdf0c
--- /dev/null
+++ b/platforms/chibios/boards/common/ld/STM32F446xE_tinyuf2.ld
@@ -0,0 +1,13 @@
+/*
+* Copyright 2006..2018 Giovanni Di Sirio
+ * Copyright 2022 QMK contributors
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+f4xx_flash_size = 512k;
+f4xx_ram1_size = 112k;
+f4xx_ram2_size = 16k;
+f4xx_ram4_size = 0;
+f4xx_ram5_size = 4k;
+
+INCLUDE stm32f4xx_tinyuf2_common.ld
diff --git a/platforms/chibios/boards/common/ld/stm32f4xx_common.ld b/platforms/chibios/boards/common/ld/stm32f4xx_common.ld
index 1ddf7e96bc..d5c7c73626 100644
--- a/platforms/chibios/boards/common/ld/stm32f4xx_common.ld
+++ b/platforms/chibios/boards/common/ld/stm32f4xx_common.ld
@@ -24,12 +24,12 @@ MEMORY
     flash5 (rx) : org = 0x00000000, len = 0
     flash6 (rx) : org = 0x00000000, len = 0
     flash7 (rx) : org = 0x00000000, len = 0
-    ram0   (wx) : org = 0x20000000, len = f4xx_ram_size
-    ram1   (wx) : org = 0x00000000, len = 0
-    ram2   (wx) : org = 0x00000000, len = 0
+    ram0   (wx) : org = 0x20000000, len = f4xx_ram1_size + f4xx_ram2_size /* SRAM1 + SRAM2 */
+    ram1   (wx) : org = 0x20000000, len = f4xx_ram1_size                  /* SRAM1 */
+    ram2   (wx) : org = 0x20000000 + f4xx_ram1_size, len = f4xx_ram2_size /* SRAM2 */
     ram3   (wx) : org = 0x00000000, len = 0
-    ram4   (wx) : org = 0x00000000, len = 0
-    ram5   (wx) : org = 0x00000000, len = 0
+    ram4   (wx) : org = 0x10000000, len = f4xx_ram4_size                  /* CCM SRAM */
+    ram5   (wx) : org = 0x40024000, len = f4xx_ram5_size                  /* BCKP SRAM */
     ram6   (wx) : org = 0x00000000, len = 0
     ram7   (wx) : org = 0x00000000, len = 0
 }
@@ -80,4 +80,3 @@ REGION_ALIAS("HEAP_RAM", ram0);
 
 /* Generic rules inclusion.*/
 INCLUDE rules.ld
-
diff --git a/platforms/chibios/boards/common/ld/stm32f4xx_tinyuf2_common.ld b/platforms/chibios/boards/common/ld/stm32f4xx_tinyuf2_common.ld
index ab03a9e683..d995bd014a 100644
--- a/platforms/chibios/boards/common/ld/stm32f4xx_tinyuf2_common.ld
+++ b/platforms/chibios/boards/common/ld/stm32f4xx_tinyuf2_common.ld
@@ -27,12 +27,12 @@ MEMORY
     flash5 (rx) : org = 0x00000000, len = 0
     flash6 (rx) : org = 0x00000000, len = 0
     flash7 (rx) : org = 0x00000000, len = 0
-    ram0   (wx) : org = 0x20000000, len = f4xx_ram_size
-    ram1   (wx) : org = 0x00000000, len = 0
-    ram2   (wx) : org = 0x00000000, len = 0
+    ram0   (wx) : org = 0x20000000, len = f4xx_ram1_size + f4xx_ram2_size /* SRAM1 + SRAM2 */
+    ram1   (wx) : org = 0x20000000, len = f4xx_ram1_size                  /* SRAM1 */
+    ram2   (wx) : org = 0x20000000 + f4xx_ram1_size, len = f4xx_ram2_size /* SRAM2 */
     ram3   (wx) : org = 0x00000000, len = 0
-    ram4   (wx) : org = 0x00000000, len = 0
-    ram5   (wx) : org = 0x00000000, len = 0
+    ram4   (wx) : org = 0x10000000, len = f4xx_ram4_size                  /* CCM SRAM */
+    ram5   (wx) : org = 0x40024000, len = f4xx_ram5_size                  /* BCKP SRAM */
     ram6   (wx) : org = 0x00000000, len = 0
     ram7   (wx) : org = 0x00000000, len = 0
 }
@@ -86,5 +86,3 @@ INCLUDE rules.ld
 
 /* TinyUF2 bootloader reset support */
 _board_dfu_dbl_tap = ORIGIN(ram0) + 64k - 4; /* this is based off the linker file for tinyuf2 */
-
-