diff --git a/core/embed/sys/linker/stm32f4/boardloader.ld b/core/embed/sys/linker/stm32f4/boardloader.ld
index 720d77db06..8804627057 100644
--- a/core/embed/sys/linker/stm32f4/boardloader.ld
+++ b/core/embed/sys/linker/stm32f4/boardloader.ld
@@ -25,6 +25,14 @@ _confidential_section_loadaddr = 0;
 _confidential_section_start = 0;
 _confidential_section_end = 0;
 
+_accessible_ram_0_start = MCU_CCMRAM;
+_accessible_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
+_accessible_ram_1_start = MCU_SRAM;
+_accessible_ram_1_end = MCU_SRAM + MCU_SRAM_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_CCMRAM;
 _startup_clear_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
diff --git a/core/embed/sys/linker/stm32f4/bootloader.ld b/core/embed/sys/linker/stm32f4/bootloader.ld
index 8963fd6ac7..fdd3937051 100644
--- a/core/embed/sys/linker/stm32f4/bootloader.ld
+++ b/core/embed/sys/linker/stm32f4/bootloader.ld
@@ -25,6 +25,14 @@ _confidential_section_loadaddr = 0;
 _confidential_section_start = 0;
 _confidential_section_end = 0;
 
+_accessible_ram_0_start = MCU_CCMRAM;
+_accessible_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
+_accessible_ram_1_start = MCU_SRAM;
+_accessible_ram_1_end = MCU_SRAM + MCU_SRAM_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_CCMRAM;
 _startup_clear_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE - BOOTARGS_SIZE;
diff --git a/core/embed/sys/linker/stm32f4/kernel.ld b/core/embed/sys/linker/stm32f4/kernel.ld
index 0d05aa6c74..64c6bbef2b 100644
--- a/core/embed/sys/linker/stm32f4/kernel.ld
+++ b/core/embed/sys/linker/stm32f4/kernel.ld
@@ -25,6 +25,14 @@ _confidential_section_loadaddr = 0;
 _confidential_section_start = 0;
 _confidential_section_end = 0;
 
+_accessible_ram_0_start = MCU_CCMRAM;
+_accessible_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
+_accessible_ram_1_start = MCU_SRAM;
+_accessible_ram_1_end = MCU_SRAM + MCU_SRAM_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_CCMRAM;
 _startup_clear_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
diff --git a/core/embed/sys/linker/stm32f4/prodtest.ld b/core/embed/sys/linker/stm32f4/prodtest.ld
index 20f27efbc2..ed42acc779 100644
--- a/core/embed/sys/linker/stm32f4/prodtest.ld
+++ b/core/embed/sys/linker/stm32f4/prodtest.ld
@@ -25,6 +25,14 @@ _confidential_section_loadaddr = 0;
 _confidential_section_start = 0;
 _confidential_section_end = 0;
 
+_accessible_ram_0_start = MCU_CCMRAM;
+_accessible_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
+_accessible_ram_1_start = MCU_SRAM;
+_accessible_ram_1_end = MCU_SRAM + MCU_SRAM_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_CCMRAM;
 _startup_clear_ram_0_end = MCU_CCMRAM + MCU_CCMRAM_SIZE;
diff --git a/core/embed/sys/linker/stm32u58/boardloader.ld b/core/embed/sys/linker/stm32u58/boardloader.ld
index e3ae88f15b..a9aa021346 100644
--- a/core/embed/sys/linker/stm32u58/boardloader.ld
+++ b/core/embed/sys/linker/stm32u58/boardloader.ld
@@ -28,6 +28,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM3 + MCU_SRAM3_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end =  MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE - BOOTARGS_SIZE;
@@ -54,7 +62,6 @@ _shutdown_clear_ram_2_end = 0;
 _shutdown_clear_ram_3_start = 0;
 _shutdown_clear_ram_3_end = 0;
 
-
 SECTIONS {
   .vector_table : ALIGN(CODE_ALIGNMENT) {
     KEEP(*(.vector_table));
diff --git a/core/embed/sys/linker/stm32u58/bootloader.ld b/core/embed/sys/linker/stm32u58/bootloader.ld
index 297e0b4c1e..3e4fea9637 100644
--- a/core/embed/sys/linker/stm32u58/bootloader.ld
+++ b/core/embed/sys/linker/stm32u58/bootloader.ld
@@ -27,6 +27,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM3 + MCU_SRAM3_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end =  MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE - BOOTARGS_SIZE;
diff --git a/core/embed/sys/linker/stm32u58/kernel.ld b/core/embed/sys/linker/stm32u58/kernel.ld
index 09e685c1b9..b8e8f5694b 100644
--- a/core/embed/sys/linker/stm32u58/kernel.ld
+++ b/core/embed/sys/linker/stm32u58/kernel.ld
@@ -30,6 +30,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM3 + MCU_SRAM3_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end =  MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;
diff --git a/core/embed/sys/linker/stm32u58/prodtest.ld b/core/embed/sys/linker/stm32u58/prodtest.ld
index 0ae7d5cede..7e1310c89d 100644
--- a/core/embed/sys/linker/stm32u58/prodtest.ld
+++ b/core/embed/sys/linker/stm32u58/prodtest.ld
@@ -27,6 +27,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM3 + MCU_SRAM3_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end =  MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;
diff --git a/core/embed/sys/linker/stm32u5g/boardloader.ld b/core/embed/sys/linker/stm32u5g/boardloader.ld
index 9128b3c72e..fb52947012 100644
--- a/core/embed/sys/linker/stm32u5g/boardloader.ld
+++ b/core/embed/sys/linker/stm32u5g/boardloader.ld
@@ -28,6 +28,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM6 + MCU_SRAM6_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end = MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1 + BOOTARGS_SIZE;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;
diff --git a/core/embed/sys/linker/stm32u5g/bootloader.ld b/core/embed/sys/linker/stm32u5g/bootloader.ld
index 1e0799c974..324660af06 100644
--- a/core/embed/sys/linker/stm32u5g/bootloader.ld
+++ b/core/embed/sys/linker/stm32u5g/bootloader.ld
@@ -26,6 +26,15 @@ _bss_section_end = ADDR(.bss) + SIZEOF(.bss);
 _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
+
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM6 + MCU_SRAM6_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end = MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1 + BOOTARGS_SIZE;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;
diff --git a/core/embed/sys/linker/stm32u5g/kernel.ld b/core/embed/sys/linker/stm32u5g/kernel.ld
index b212a23dc1..ff8a6c7775 100644
--- a/core/embed/sys/linker/stm32u5g/kernel.ld
+++ b/core/embed/sys/linker/stm32u5g/kernel.ld
@@ -31,6 +31,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM6 + MCU_SRAM6_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end = MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;
diff --git a/core/embed/sys/linker/stm32u5g/prodtest.ld b/core/embed/sys/linker/stm32u5g/prodtest.ld
index ca1e757d52..dc767cb5b9 100644
--- a/core/embed/sys/linker/stm32u5g/prodtest.ld
+++ b/core/embed/sys/linker/stm32u5g/prodtest.ld
@@ -27,6 +27,14 @@ _confidential_section_loadaddr = LOADADDR(.confidential);
 _confidential_section_start = ADDR(.confidential);
 _confidential_section_end = ADDR(.confidential) + SIZEOF(.confidential);
 
+_accessible_ram_0_start = MCU_SRAM1;
+_accessible_ram_0_end = MCU_SRAM6 + MCU_SRAM6_SIZE;
+_accessible_ram_1_start = MCU_SRAM4;
+_accessible_ram_1_end = MCU_SRAM4 + MCU_SRAM4_SIZE;
+
+_bootargs_ram_start = BOOTARGS_START;
+_bootargs_ram_end = BOOTARGS_START + BOOTARGS_SIZE;
+
 /* used by the startup code to wipe memory */
 _startup_clear_ram_0_start = MCU_SRAM1;
 _startup_clear_ram_0_end = MCU_SRAM1 + MCU_SRAM1_SIZE;