Set ram size from SPL.

[Arm7]

Hello,

Could you help me, Where in the SPL ( Secondary program Loader ) can I set the ram size?

Currently, the configuration is done in u-boot like: gd->ram_size = PHYS_SDRAM_SIZE;

And now, I have to do it in the SPL side.

I'd appreciate the support. Thank you!

[Zhiming_Liu]

Hi @Arm7 

There is no example code for setting ram size in SPL.

[Arm7]

Hello @Zhiming_Liu,

Thank you for the support, CONFIG_SPL_SIZE_LIMIT it seems, this configuration is only for SPL side, When the boot sequence ends, in kernel, the configuration would be kept ?

[Zhiming_Liu · Accepted solution]

Hello @Arm7  

The SPL is not designed to set global data

[Arm7]

Hello @Zhiming_Liu

Could you give me a little more detail please?
Is this documented somewhere ?

Thank you!

[Zhiming_Liu]

You can refer the comment in this file:

https://github.com/nxp-imx/uboot-imx/blob/lf_v2022.04/arch/arm/lib/crt0_64.S