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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) Aspeed Technology Inc.
*/
#include <asm/arch/fmc_hdr.h>
#include <asm/io.h>
#include <asm/sections.h>
#include <errno.h>
#include <spl.h>
#include <string.h>
int fmc_hdr_get_prebuilt(uint32_t type, uint32_t *ofst, uint32_t *size)
{
struct fmc_hdr_preamble *preamble;
struct fmc_hdr_body *body;
struct fmc_hdr *hdr;
uint32_t t, s, o;
int i;
if (type >= PBT_NUM)
return -EINVAL;
if (!ofst || !size)
return -EINVAL;
hdr = (struct fmc_hdr *)(_start - sizeof(*hdr));
preamble = &hdr->preamble;
body = &hdr->body;
if (preamble->magic != HDR_MAGIC)
return -EIO;
for (i = 0, o = sizeof(*hdr) + body->fmc_size; i < HDR_PB_MAX; ++i) {
t = body->pbs[i].type;
s = body->pbs[i].size;
/* skip if unrecognized, yet */
if (t >= PBT_NUM) {
o += s;
continue;
}
/* prebuilt end mark */
if (t == 0 && s == 0)
break;
/* return the prebuilt info if found */
if (t == type) {
*ofst = o;
*size = s;
goto found;
}
/* update offset for next prebuilt */
o += s;
}
return -ENODATA;
found:
return 0;
}
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