diff options
Diffstat (limited to 'src/vendorcode/google/chromeos/gnvs.c')
-rw-r--r-- | src/vendorcode/google/chromeos/gnvs.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/gnvs.c b/src/vendorcode/google/chromeos/gnvs.c new file mode 100644 index 0000000000..8d0f9bb222 --- /dev/null +++ b/src/vendorcode/google/chromeos/gnvs.c @@ -0,0 +1,88 @@ +/* + * 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)); +} |