michaelh/zephyr
1
0
Fork 0
Code Releases Activity

boards: arm: stm32h7b3 disco with external memory region for XiP

Browse source 
Declare a sub-region of the whole ext_memory with attributes
ATTR_MPU_IO so that XiP becomes possible on this external
octo- NOR flash.  Use the STM32CubeProgrammer runner
with the external loader for flashing.

Signed-off-by: Francois Ramu <francois.ramu@st.com>
This commit is contained in:
Francois Ramu 2024-03-01 16:01:20 +01:00 • committed by David Leach
commit ae06f927aa
2 changed files with 17 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

9
boards/st/stm32h7b3i_dk/board.cmake
View file

@ -4,5 +4,14 @@
board_runner_args(jlink "--device=STM32H7B3LI" "--speed=4000")
board_runner_args(openocd --target-handle=_CHIPNAME.cpu0)
if(CONFIG_STM32_MEMMAP)
board_runner_args(stm32cubeprogrammer "--port=swd" "--reset-mode=hw")
board_runner_args(stm32cubeprogrammer "--hex-file=${ZEPHYR_BASE}/build/zephyr/zephyr.hex")
board_runner_args(stm32cubeprogrammer "--extload=MX25LM51245G_STM32H7B3I-DISCO.stldr")
else()
board_runner_args(stm32cubeprogrammer "--erase" "--port=swd" "--reset-mode=hw" )
endif()
include(${ZEPHYR_BASE}/boards/common/stm32cubeprogrammer.board.cmake)
include(${ZEPHYR_BASE}/boards/common/openocd.board.cmake)
include(${ZEPHYR_BASE}/boards/common/jlink.board.cmake)

8
boards/st/stm32h7b3i_dk/stm32h7b3i_dk.dts
View file

@ -59,6 +59,14 @@
zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_RAM_NOCACHE) )>;
};
octo_nor: memory@90000000 {
compatible = "zephyr,memory-region";
reg = <0x90000000 DT_SIZE_M(64)>;
zephyr,memory-region = "EXTMEM";
/* The ATTR_MPU_EXTMEM attribut causing a MPU FAULT */
zephyr,memory-attr = <( DT_MEM_ARM(ATTR_MPU_IO) )>;
};
transceiver0: can-phy0 {
compatible = "microchip,mcp2562fd", "can-transceiver-gpio";
standby-gpios = <&gpioh 8 GPIO_ACTIVE_HIGH>;