Yocto Memory - Multiple Configurations

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Yocto Memory - Multiple Configurations

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PaulDeMetrotion
Senior Contributor I

I have a custom board that provides two different memory configuration. I am trying to use a build option in the defconfig file to select the desired configuration but the settings don't appear to be identified. Will what I am trying work? Has anybody done something like this? When I attempt to build the u-boot image, I get the bold error message in the file below.

defconfig settings:

CONFIG_ARM=y
CONFIG_ARCH_MX6=y
CONFIG_TARGET_MX6DLC428=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=board/freescale/mx6dlc428/mx6dl.cfg,MX6DL,DDR_MB=1024"
CONFIG_SPI_FLASH=y
CONFIG_SPI_FLASH_STMICRO=y

mx6dl.cfg (memory configuration file):

/*
* SPDX-License-Identifier: GPL-2.0+
*
* Refer docs/README.imxmage for more details about how-to configure
* and create imximage boot image
*
* The syntax is taken as close as possible with the kwbimage
*/

/* image version */
IMAGE_VERSION 2

/*
* Boot Device : one of spi, sd
*/
BOOT_FROM sd

#if CONFIG_DDR_MB==1024
#include "mx6dl_1GBx32.cfg"
#elif CONFIG_DDR_MB==2048
#include "mx6dl_2GBx64.cfg"
#else
#error "unknown DDR size"
#endif

#include "clocks.cfg"

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1 Reply

790 Views
gusarambula
NXP TechSupport
NXP TechSupport

Hello Paul DeMetrotion,

I’m not sure if the conditional would work as expected although it’s logically correct. However, my recommendation would be creating a new machine for each hardware configuration, as this is a most common approach in Yocto. If you have two different boards that differ by the RAM available you would create two machine configurations. It is possible to create a base machine and then on the new machine configuration inherit the base machine and just add the configuration unique to the specific machine.

I hope this helps!

Regards,

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