Hi,
We're trying to use the LittleFS sample on NCS 2.9.0 with the NRF52840DK with the flash chip changed to an MX25L256.
We defined an overlay file as nrf52840dk_nrf52840.overlay:
/*
* Copyright (c) 2019 Peter Bigot Consulting, LLC
*
* SPDX-License-Identifier: Apache-2.0
*/
/delete-node/ &storage_partition;
/ {
chosen {
nordic,pm-ext-flash = &mx25l25;
};
};
&qspi
{
mx25l25: mx25l25645g@0
{
compatible = "nordic,qspi-nor";
reg = < 0x0 >;
writeoc = "pp4io";
readoc = "read4io";
sck-frequency = < 0x7a1200 >;
jedec-id = [ C2 20 19 ];
sfdp-bfp = [ e5 20 fb ff ff ff ff 0f 44 eb 08 6b 08 3b 04 bb fe ff ff ff ff ff 00 ff ff ff 44 eb 0c 20 0f 52 10 d8 00 ff d6 59 dd 00 82 9f 03 db 44 03 67 38 30 b0 30 b0 f7 bd d5 5c 4a 9e 29 ff f0 50 f9 85 ];
size = < 0x10000000 >;
has-dpd;
t-enter-dpd = < 0x2710 >;
t-exit-dpd = < 0x88b8 >;
enter-4byte-addr = <0x87>;
address-size-32;
};
};
/ {
fstab {
compatible = "zephyr,fstab";
lfs1: lfs1 {
compatible = "zephyr,fstab,littlefs";
mount-point = "/lfs1";
partition = <&lfs1_part>;
automount;
read-size = <16>;
prog-size = <16>;
cache-size = <64>;
lookahead-size = <32>;
block-cycles = <512>;
};
};
};
&mx25l25 {
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
#size-cells = <1>;
lfs1_part: partition@0 {
label = "storage";
reg = <0x00000000 0x00800000>;
};
};
};
we also added an nrf52840dk_nrf52840.conf:
# Need this when storage is on flash CONFIG_MPU_ALLOW_FLASH_WRITE=y # Need this when storage is on MX25R64 CONFIG_NORDIC_QSPI_NOR=y CONFIG_NORDIC_QSPI_NOR_FLASH_LAYOUT_PAGE_SIZE=4096
However, compilation fails with:
(folder)/ncs/toolchains/b77d8c1312/opt/zephyr-sdk/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/../../../../arm-zephyr-eabi/bin/ld.bfd: zephyr/libzephyr.a(flash_map_partition_manager.c.obj):(.rodata.default_flash_map+0x2c): undefined reference to `__device_dts_ord_25' collect2: error: ld returned 1 exit status
If we use the overlay file without redefining the &qspi node it works fine with the MX25R64 chip, but not the MX25L256. How can we get this to work?
