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imx: spl: implement spl_load_simple_fit_fix_load

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read the address where the IVT header must sit
from IVT image header, loaded from SPL into
an malloced buffer and copy the IVT header
to this address

May make this dependend on SoC ?

Signed-off-by: Heiko Schocher <hs@denx.de>
This commit is contained in:
Heiko Schocher 2021-08-06 06:44:27 +02:00 committed by Stefano Babic
parent 884ba50a07
commit 9de3544858
1 changed files with 33 additions and 0 deletions
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33
arch/arm/mach-imx/spl.c
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@ -345,3 +345,36 @@ int dram_init_banksize(void)
return 0;
}
#endif
/*
* read the address where the IVT header must sit
* from IVT image header, loaded from SPL into
* an malloced buffer and copy the IVT header
* to this address
*/
void *spl_load_simple_fit_fix_load(const void *fit)
{
struct ivt *ivt;
unsigned long new;
unsigned long offset;
unsigned long size;
u8 *tmp = (u8 *)fit;
offset = ALIGN(fdt_totalsize(fit), 0x1000);
size = ALIGN(fdt_totalsize(fit), 4);
size = board_spl_fit_size_align(size);
tmp += offset;
ivt = (struct ivt *)tmp;
if (ivt->hdr.magic != IVT_HEADER_MAGIC) {
debug("no IVT header found\n");
return (void *)fit;
}
debug("%s: ivt: %p offset: %lx size: %lx\n", __func__, ivt, offset, size);
debug("%s: ivt self: %x\n", __func__, ivt->self);
new = ivt->self;
new -= offset;
debug("%s: new %lx\n", __func__, new);
memcpy((void *)new, fit, size);
return (void *)new;
}