diff options
Diffstat (limited to 'libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4')
3 files changed, 23 insertions, 9 deletions
diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld index cb19009..c78e619 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/TOOLCHAIN_GCC_ARM/STM32F429BI.ld @@ -1,19 +1,18 @@ /* Linker script to configure memory regions. */ MEMORY -{ +{ /* FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048k */ BOOTLOADER (rx) : ORIGIN = 0x08000000, LENGTH = 128K - FIRMWARE (rx) : ORIGIN = 0x08100000, LENGTH = 2048K - 128K + FIRMWARE (rx) : ORIGIN = 0x08000000 + 128K, LENGTH = 2048K - 128K FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048K - CCM (rwx) : ORIGIN = 0x10000000, LENGTH = 64K - RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 192K + RAM (rwx) : ORIGIN = 0x20000000, LENGTH = 192K - 4 } /* Linker script to place sections and symbol values. Should be used together * with other linker script that defines memory regions FLASH and RAM. * It references following symbols, which must be defined in code: * Reset_Handler : Entry of reset handler - * + * * It defines following symbols, which code can use without definition: * __exidx_start * __exidx_end @@ -152,6 +151,17 @@ SECTIONS __StackLimit = __StackTop - SIZEOF(.stack_dummy); PROVIDE(__stack = __StackTop); + /* The DFU code needs to know where the firmware lives */ + CRYPTECH_BOOTLOADER_START = ORIGIN(BOOTLOADER); + CRYPTECH_BOOTLOADER_END = ORIGIN(BOOTLOADER) + LENGTH(BOOTLOADER) - 1; + CRYPTECH_FIRMWARE_START = ORIGIN(FIRMWARE); + CRYPTECH_FIRMWARE_END = ORIGIN(FIRMWARE) + LENGTH(FIRMWARE) - 1; + /* The last 4 bytes of RAM is used to control the DFU reset+jumping. + * Have to be reserved in here to not get overwritten by the Reset_Handler + * that zeros memory. Maybe there is a better way? + */ + CRYPTECH_DFU_CONTROL = ORIGIN(RAM) + LENGTH(RAM); + /* Check if data + heap + stack exceeds RAM limit */ ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack") } diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/cmsis_nvic.c b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/cmsis_nvic.c index ac2c92a..2da63fc 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/cmsis_nvic.c +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/cmsis_nvic.c @@ -38,8 +38,7 @@ void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) { uint32_t i; // Copy and switch to dynamic vectors if the first time called - if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS || - SCB->VTOR == 0x08100000) { + if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) { uint32_t *old_vectors = vectors; vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS; for (i=0; i<NVIC_NUM_VECTORS; i++) { diff --git a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c index c2816d0..cc527ae 100644 --- a/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c +++ b/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4/TARGET_CRYPTECH_ALPHA/system_stm32f4xx.c @@ -75,6 +75,8 @@ #define HSI_VALUE ((uint32_t)16000000) /*!< Value of the Internal oscillator in Hz*/ #endif /* HSI_VALUE */ +extern uint32_t CRYPTECH_FIRMWARE_START; /* defined in the linker script (STM32F429BI.ld) */ + /** * @} */ @@ -197,11 +199,14 @@ void SystemInit(void) #endif /* DATA_IN_ExtSRAM || DATA_IN_ExtSDRAM */ /* Configure the Vector Table location add offset address ------------------*/ + /* cryptech: Don't change VTOR if it is already set up by the bootloader */ + if (SCB->VTOR != CRYPTECH_FIRMWARE_START) { #ifdef VECT_TAB_SRAM - SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */ + SCB->VTOR = SRAM_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal SRAM */ #else - SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */ + SCB->VTOR = FLASH_BASE | VECT_TAB_OFFSET; /* Vector Table Relocation in Internal FLASH */ #endif + } /* Configure the Cube driver */ SystemCoreClock = 16000000; // At this stage the HSI is used as system clock |