topic Re: Set ram size from SPL. in Processor Expert Software

Set ram size from SPL.

Arm7 — Thu, 22 Jun 2023 00:37:25 GMT

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!

Re: Set ram size from SPL.

Zhiming_Liu — Tue, 27 Jun 2023 05:34:22 GMT

Hi @Arm7

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

Re: Set ram size from SPL.

Arm7 — Mon, 26 Jun 2023 19:36:13 GMT

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 ?

Re: Set ram size from SPL.

Zhiming_Liu — Tue, 27 Jun 2023 05:43:22 GMT

Hello @Arm7

The SPL is not designed to set global data

Re: Set ram size from SPL.

Arm7 — Wed, 28 Jun 2023 22:51:30 GMT

Hello @Zhiming_Liu

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

Thank you!

Re: Set ram size from SPL.

Zhiming_Liu — Thu, 29 Jun 2023 08:21:40 GMT

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