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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
*
* 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 <types.h>
#include <cbfs.h>
#include <console/console.h>
#include "gnvs.h"
chromeos_acpi_t *vboot_data;
static u32 me_hash_saved[8];
void chromeos_init_vboot(chromeos_acpi_t *chromeos)
{
vboot_data = chromeos;
/* Copy saved ME hash into NVS */
memcpy(vboot_data->mehh, me_hash_saved, sizeof(vboot_data->mehh));
}
void chromeos_set_vboot_data_ptr(void *blob)
{
/* This code has to be rewritten to pass the vboot table
* pointer through the coreboot table instead of the
* FDT, since FDT support was rejected upstream. For now
* just make the code available for reference.
*/
#if 0 // CONFIG_ADD_FDT
int node_offset, addr_cell_len;
const u32 *cell;
uintptr_t table_addr = (uintptr_t)vboot_data;
u32 table_addr32;
u64 table_addr64;
void *table_ptr;
cell = fdt_getprop(blob, 0, "#address-cells", NULL);
if (cell && *cell == 2) {
addr_cell_len = 8;
table_addr64 = cpu_to_fdt64(table_addr);
table_ptr = &table_addr64;
} else {
addr_cell_len = 4;
table_addr32 = cpu_to_fdt32(table_addr);
table_ptr = &table_addr32;
}
node_offset = fdt_path_offset(blob, "/chromeos-config");
if (node_offset < 0) {
printk(BIOS_ERR,
"Couldn't find /chromeos-config in the fdt.\n");
return;
}
if (fdt_setprop(blob, node_offset, "gnvs-vboot-table",
table_ptr, addr_cell_len) < 0) {
printk(BIOS_ERR, "Couldn't set gnvs-vboot-table.\n");
}
#else
printk(BIOS_ERR, "Can't set gnvs-vboot-table.\n");
#endif
}
void chromeos_set_me_hash(u32 *hash, int len)
{
if ((len*sizeof(u32)) > sizeof(vboot_data->mehh))
return;
/* Copy to NVS or save until it is ready */
if (vboot_data)
memcpy(vboot_data->mehh, hash, len*sizeof(u32));
else
memcpy(me_hash_saved, hash, len*sizeof(u32));
}
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