Hi,
I am using nRf9160dk with mcuboot secondary image on external flash base on AZURE_FOTA example, ncs 2.0.2.
Found the bootloader cannot runs primary image.
So, I need advice on how to set up the mcuboot secondary with SPI flash.
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*** Booting Zephyr OS build v3.0.99-ncs1-1 ***
I: Starting bootloader
W: Failed reading sectors; BOOT_MAX_IMG_SECTORS=128 - too small?
E: Image in the primary slot is not valid!
E: Unable to find bootable image
Checked the partition with west build -t partition_manager_report .
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+------------------------------------------+
| 0x0: external_flash (0x800000 - 8192kB) |
| 0x0: mcuboot_secondary (0x70000 - 448kB) |
+------------------------------------------+
flash_primary (0x100000 - 1024kB):
+--------------------------------------------------+
| 0x0: mcuboot (0xc000 - 48kB) |
| 0xc000: EMPTY_0 (0x4000 - 16kB) |
+---0x10000: mcuboot_primary (0xe8000 - 928kB)-----+
+---0x10000: tfm_secure (0xc200 - 48kB)------------+
| 0x10000: mcuboot_pad (0x200 - 512B) |
+---0x10200: mcuboot_primary_app (0xe7e00 - 927kB)-+
| 0x10200: tfm (0xc000 - 48kB) |
+---0x1c200: tfm_nonsecure (0xdbe00 - 879kB)-------+
| 0x1c200: app (0xdbe00 - 879kB) |
+---0xf8000: nonsecure_storage (0x8000 - 32kB)-----+
| 0xf8000: settings_storage (0x2000 - 8kB) |
| 0xfa000: littlefs_storage (0x6000 - 24kB) |
+--------------------------------------------------+
My configuration as follows:
child_image\mcuboot\boards\nrf9160dk_nrf9160_mcuboot.overlay
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/ {
chosen {
nordic,pm-ext-flash = &mx25r64;
};
};
&spi3 {
compatible = "nordic,nrf-spim";
status = "okay";
pinctrl-0 = <&spi3_default_alt>;
pinctrl-1 = <&spi3_sleep_alt>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
mx25r64: mx25r6435f@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
label = "MX25R64";
jedec-id = [c2 28 17];
size = <67108864>;
};
child_image\mcuboot\prj_mcuboot.conf
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CONFIG_SPI=y
CONFIG_SPI_NOR=y
CONFIG_SPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
CONFIG_MULTITHREADING=y
# MCUboot requires a large stack size, otherwise an MPU fault will occur
CONFIG_MAIN_STACK_SIZE=10240
CONFIG_DEBUG_OPTIMIZATIONS=y
# Enable flash operations
CONFIG_FLASH=y
# This must be increased to accommodate the bigger images.
CONFIG_BOOT_MAX_IMG_SECTORS=256
nrf9160dk_nrf9160_ns.overlay
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/ {
chosen {
nordic,pm-ext-flash = &mx25r64;
};
};
&spi3 {
compatible = "nordic,nrf-spim";
status = "okay";
pinctrl-0 = <&spi3_default_alt>;
pinctrl-1 = <&spi3_sleep_alt>;
pinctrl-names = "default", "sleep";
cs-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
mx25r64: mx25r6435f@0 {
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <80000000>;
label = "MX25R64";
jedec-id = [c2 28 17];
size = <67108864>;
};
pm_static.yml
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#include <autoconf.h>
#include <devicetree_legacy_unfixed.h>
external_flash:
address: 0x0
device: mx25r6435f
region: external_flash
size: 0x800000
mcuboot_secondary:
address: 0x0
device: mx25r6435f
region: external_flash
size: 0x70000
prj.conf
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#
# Copyright (c) 2020 Nordic Semiconductor ASA
#
# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
#
# General config
CONFIG_REBOOT=y
# Log
CONFIG_LOG=y
CONFIG_LOG_MODE_IMMEDIATE=y
# LTE link control
CONFIG_LTE_LINK_CONTROL=y
CONFIG_LTE_NETWORK_MODE_LTE_M=n
CONFIG_LTE_NETWORK_MODE_NBIOT=y
CONFIG_LTE_AUTO_INIT_AND_CONNECT=n
# AT Host
CONFIG_UART_INTERRUPT_DRIVEN=y
CONFIG_AT_HOST_LIBRARY=y
