Re: [PATCH v4] RISC-V: Add an Image header that boot loader can parse.

[Paul Walmsley]

On Thu, 6 Jun 2019, Atish Patra wrote:

> Currently, the last stage boot loaders such as U-Boot can accept only
> uImage which is an unnecessary additional step in automating boot
> process.
> 
> Add an image header that boot loader understands and boot Linux from
> flat Image directly.

...


> +#if __riscv_xlen == 64
> +	/* Image load offset(2MB) from start of RAM */
> +	.dword 0x200000
> +#else
> +	/* Image load offset(4MB) from start of RAM */
> +	.dword 0x400000
> +#endif

Is there a rationale behind these load offset values?


- Paul