build: introduce T1 memory file

SConscript.boardloader

@@ -86,6 +86,7 @@ env.Replace(
     OBJCOPY='arm-none-eabi-objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -109,7 +110,7 @@ env.Replace(
         'vendor/micropython/lib/cmsis/inc',
     ] + CPPPATH_MOD,
     CPPDEFINES=[
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'STM32F427xx',
         'USE_HAL_DRIVER',
         ('STM32_HAL_H', '"<stm32f4xx.h>"'),

SConscript.bootloader

@@ -107,6 +107,7 @@ env.Replace(
     OBJCOPY='arm-none-eabi-objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -131,7 +132,7 @@ env.Replace(
         'vendor/micropython/lib/cmsis/inc',
     ] + CPPPATH_MOD,
     CPPDEFINES=[
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'STM32F427xx',
         'USE_HAL_DRIVER',
         ('STM32_HAL_H', '"<stm32f4xx.h>"'),

SConscript.firmware

@@ -300,6 +300,7 @@ env.Replace(
     OBJCOPY='arm-none-eabi-objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -311,7 +312,7 @@ env.Replace(
     '-fstack-protector-all '
     + CCFLAGS_MOD,
     CCFLAGS_QSTR='-DNO_QSTR -DN_X64 -DN_X86 -DN_THUMB',
-    LINKFLAGS='-T embed/firmware/memory.ld -Wl,--gc-sections -Wl,-Map=build/firmware/firmware.map -Wl,--warn-common',
+    LINKFLAGS='-T embed/firmware/memory_${TREZOR_MODEL}.ld -Wl,--gc-sections -Wl,-Map=build/firmware/firmware.map -Wl,--warn-common',
     CPPPATH=[
         '.',
         'embed/firmware',
@@ -324,7 +325,7 @@ env.Replace(
         'vendor/micropython/ports/stm32',
     ] + CPPPATH_MOD,
     CPPDEFINES=[
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'STM32F427xx',
         'USE_HAL_DRIVER',
         ('STM32_HAL_H', '"<stm32f4xx.h>"'),

SConscript.prodtest

@@ -76,6 +76,7 @@ env.Replace(
     OBJCOPY='arm-none-eabi-objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -98,7 +99,7 @@ env.Replace(
         'vendor/micropython/ports/stm32',
     ] + CPPPATH_MOD,
     CPPDEFINES=[
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'STM32F427xx',
         ('STM32_HAL_H', '"<stm32f4xx_hal.h>"'),
     ] + CPPDEFINES_MOD,

SConscript.reflash

@@ -76,6 +76,7 @@ env.Replace(
     OBJCOPY='arm-none-eabi-objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -98,7 +99,7 @@ env.Replace(
         'vendor/micropython/ports/stm32',
     ] + CPPPATH_MOD,
     CPPDEFINES=[
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'STM32F427xx',
         ('STM32_HAL_H', '"<stm32f4xx_hal.h>"'),
     ] + CPPDEFINES_MOD,

SConscript.unix

@@ -249,6 +249,7 @@ env.Replace(
     OBJCOPY='objcopy', )
 
 env.Replace(
+    TREZOR_MODEL=env.get('ENV').get('TREZOR_MODEL', 'T'),
     COPT=env.get('ENV').get('OPTIMIZE', '-Os'),
     CCFLAGS='$COPT '
     '-g3 '
@@ -266,7 +267,7 @@ env.Replace(
     ] + CPPPATH_MOD,
     CPPDEFINES=[
         'TREZOR_EMULATOR',
-        ('TREZOR_MODEL', 'T'),
+        ('TREZOR_MODEL', '$TREZOR_MODEL'),
         'MICROPY_USE_READLINE',
         ('MP_CONFIGFILE', '\\"embed/unix/mpconfigport.h\\"'),
     ] + CPPDEFINES_MOD,

embed/firmware/memory_1.ld

@@ -0,0 +1,66 @@
+/* TREZORv1 firmware linker script */
+
+ENTRY(reset_handler)
+
+MEMORY {
+  FLASH  (rx)  : ORIGIN = 0x08040000, LENGTH = 768K
+  SRAM   (wal) : ORIGIN = 0x20000000, LENGTH = 128K
+}
+
+main_stack_base = ORIGIN(SRAM) + LENGTH(SRAM); /* 8-byte aligned full descending stack */
+_estack = main_stack_base;
+
+/* used by the startup code to populate variables used by the C code */
+data_lma = LOADADDR(.data);
+data_vma = ADDR(.data);
+data_size = SIZEOF(.data);
+
+/* used by the startup code to wipe memory */
+ccmram_start = 0;
+ccmram_end = 0;
+
+/* used by the startup code to wipe memory */
+sram_start = ORIGIN(SRAM);
+sram_end = ORIGIN(SRAM) + LENGTH(SRAM);
+_ram_start = sram_start;
+_ram_end = sram_end;
+
+_codelen = LENGTH(FLASH) - SIZEOF(.header);
+_flash_start = ORIGIN(FLASH);
+_flash_end = ORIGIN(FLASH) + LENGTH(FLASH);
+_heap_start = ADDR(.heap);
+_heap_end = ADDR(.heap) + SIZEOF(.heap);
+
+SECTIONS {
+  .header : ALIGN(4) {
+    KEEP(*(.header));
+  } >FLASH AT>FLASH
+
+  .flash : ALIGN(512) {
+    KEEP(*(.vector_table));
+    . = ALIGN(4);
+    *(.text*);
+    . = ALIGN(4);
+    *(.rodata*);
+    . = ALIGN(512);
+  } >FLASH AT>FLASH
+
+  .data : ALIGN(4) {
+    *(.data*);
+    . = ALIGN(512);
+  } >SRAM AT>FLASH
+
+  .bss : ALIGN(4) {
+    *(.bss*);
+    . = ALIGN(4);
+  } >SRAM
+
+  .heap : ALIGN(4) {
+    . = 37K; /* this acts as a build time assertion that at least this much memory is available for heap use */
+    . = ABSOLUTE(sram_end - 16K); /* this explicitly sets the end of the heap effectively giving the stack at most 16K */
+  } >SRAM
+
+  .stack : ALIGN(8) {
+    . = 4K; /* this acts as a build time assertion that at least this much memory is available for stack use */
+  } >SRAM
+}