[U-Boot] libfdt: make fdt_increase_size() available to everyone

[Kumar Gala]

So I tried to read this whole thread and got lost in the discussion.  I'm wondering of something along the following lines would address your concerns:

#define CONFIG_SYS_FDT_PAD 0x3000

/* Allow for arch specific config before we boot */
int __fdt_board_size(void)
{
	return CONFIG_SYS_FDT_PAD;
}
int fdt_board_size(void) __attribute__((weak, alias("__ fdt_board_size")));


int boot_relocate_fdt (struct lmb *lmb, ulong bootmap_base,
                char **of_flat_tree, ulong *of_size)
{
...

        if ((fdt_blob + *of_size + fdt_board_size()) >=
                        ((char *)CONFIG_SYS_BOOTMAPSZ + bootmap_base))
                relocate = 1;

...
}

Than board specific code knows what fix ups might happen and can implement dynamic behavior and do something like:


int fdt_board_size(void)
{
	determine_my_firmsize() + __fdt_board_size()
}

- k