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/*
* This file is part of the coreboot project.
*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <cbfs.h>
#include <string.h>
#include <arch/cache.h>
#include <soc/soc_services.h>
#include <console/console.h>
#include "mbn_header.h"
static void *load_ipq_blob(const char *file_name)
{
struct cbfs_file *blob_file;
struct mbn_header *blob_mbn;
void *blob_dest;
blob_file = cbfs_get_file(CBFS_DEFAULT_MEDIA, file_name);
if (!blob_file)
return NULL;
blob_mbn = (struct mbn_header *)((uintptr_t)blob_file +
ntohl(blob_file->offset));
/* some sanity checks on the headers */
if ((blob_mbn->mbn_version != 3) ||
(blob_mbn->mbn_total_size > ntohl(blob_file->len)))
return NULL;
blob_dest = (void *) blob_mbn->mbn_destination;
if (blob_mbn->mbn_destination) {
/* Copy the blob to the appropriate memory location. */
memcpy(blob_dest, blob_mbn + 1, blob_mbn->mbn_total_size);
cache_sync_instructions();
return blob_dest;
}
/*
* The blob did not have to be relocated, return its address in CBFS
* cache.
*/
return blob_mbn + 1;
}
#ifdef __PRE_RAM__
int initialize_dram(void)
{
void *cdt;
int (*ddr_init_function)(void *cdt_header);
cdt = load_ipq_blob("cdt.mbn");
ddr_init_function = load_ipq_blob("ddr.mbn");
if (!cdt || !ddr_init_function) {
printk(BIOS_ERR, "cdt: %p, ddr_init_function: %p\n",
cdt, ddr_init_function);
die("could not find DDR initialization blobs\n");
}
if (ddr_init_function(cdt) < 0)
die("Fail to Initialize DDR\n");
printk(BIOS_INFO, "DDR initialized\n");
return 0;
}
#else /* __PRE_RAM__ */
void start_tzbsp(void)
{
void *tzbsp = load_ipq_blob("tz.mbn");
if (!tzbsp)
die("could not find or map TZBSP\n");
tz_init_wrapper(0, 0, tzbsp);
}
#endif /* !__PRE_RAM__ */
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