Re: [PATCH] tisdk-uenv: Add instructions to load initramfs while booting linux

On 3/3/2026 4:49 AM, Moteen Shah wrote:
> Add instructions to load initramfs image and update the boot command
> to use the image to boot the linux kernel.
> 
> Signed-off-by: Moteen Shah <[email protected]>
> ---
>   .../recipes-tisdk/tisdk-uenv/tisdk-uenv/uEnv.txt  | 15 +++++++++++++++
>   1 file changed, 15 insertions(+)
> 
> diff --git a/meta-arago-distro/recipes-tisdk/tisdk-uenv/tisdk-uenv/uEnv.txt b/meta-arago-distro/recipes-tisdk/tisdk-uenv/tisdk-uenv/uEnv.txt
> index 0af0eef3..5ac61b34 100644
> --- a/meta-arago-distro/recipes-tisdk/tisdk-uenv/tisdk-uenv/uEnv.txt
> +++ b/meta-arago-distro/recipes-tisdk/tisdk-uenv/tisdk-uenv/uEnv.txt
> @@ -7,3 +7,18 @@
>   #       default on all newer U-Boot images.  This also means that some
>   #       variables such as bootdelay cannot be changed by this file since
>   #       it is not evaluated until the bootcmd is run.
> +
> +# Initramfs configuration
> +# Name of the initramfs file in the boot partition
> +name_initramfs=ti-core-initramfs.cpio.xz
> +
> +# Command to load initramfs from boot partition (mmc device:partition)
> +# Adjust the device number (0 or 1) based on your setup
> +# mmcdev is set to 1 by default, partition 1 is the boot partition
> +get_initramfs_mmc=fatload mmc ${mmcdev}:1 ${rdaddr} ${name_initramfs}
> +
> +# Load initramfs and set up variables
> +load_initramfs=if run get_initramfs_mmc; then setenv _initramfs ${rdaddr}:${filesize}; setenv rd_spec ${_initramfs}; echo Initramfs loaded at ${rdaddr}, size ${filesize}; else echo WARNING: Initramfs not found, continuing without initramfs; setenv rd_spec -; fi
> +
> +# Custom boot command that loads initramfs before kernel
> +init_mmc=run args_all args_mmc load_initramfs
> \ No newline at end of file

Does this work if there is no ti-core-initramsfs.cpio.xz in the boot 
partition?  Or is this assuming that there will always be an initramfs? 
Because that is a problem if it is required all the time in all cases 
for all platforms.


-- 
Ryan Eatmon                [email protected]
-----------------------------------------
Texas Instruments, Inc.  -  LCPD  -  MGTS