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/*
* (C) Copyright 2010, 2011
* NVIDIA Corporation <www.nvidia.com>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _WARM_BOOT_H_
#define _WARM_BOOT_H_
#define SDRAM_PARAMS_BASE (AP20_BASE_PA_SRAM + BCT_SDRAM_PARAMS_OFFSET)
/* bit fields definitions for APB_MISC_GP_HIDREV register */
#define HIDREV_MINOPREV_RANGE 19 : 16
#define HIDREV_CHIPID_RANGE 15 : 8
#define HIDREV_MAJORPREV_RANGE 7 : 4
#define HIDREV_HIDFAM_RANGE 3 : 0
/* CHIPID field returned from APB_MISC_GP_HIDREV register */
enum tegra_chip_id {
CHIPID_TEGRA2 = 0x20,
CHIPID_TEGRA3 = 0x30,
};
#define STRAP_OPT_A_RAM_CODE_RANGE 7 : 4
/* Defines the supported operating modes */
enum fuse_operating_mode {
MODE_PRODUCTION = 3,
MODE_UNDEFINED,
};
/* Defines the CMAC-AES-128 hash length in 32 bit words. (128 bits = 4 words) */
enum {
HASH_LENGTH = 4
};
/* Defines the storage for a hash value (128 bits) */
struct hash {
u32 hash[HASH_LENGTH];
};
/*
* Defines the code header information for the boot rom.
*
* The code immediately follows the code header.
*
* Note that the code header needs to be 16 bytes aligned to preserve
* the alignment of relevant data for hash and decryption computations without
* requiring extra copies to temporary memory areas.
*/
struct wb_header {
u32 length_in_secure; /* length of the code header */
u32 reserved[3];
struct hash hash; /* hash of header+code, starts next field*/
struct hash random_aes_block; /* a data block to aid security. */
u32 length_secure; /* length of the code header */
u32 destination; /* destination address to put the wb code */
u32 entry_point; /* execution address of the wb code */
u32 code_length; /* length of the code */
};
void warmboot_save_sdram_params(void);
int warmboot_prepare_code(u32 seg_address, u32 seg_length);
int sign_data_block(u8 *source, u32 length, u8 *signature);
void wb_start(void); /* Start of WB assembly code */
void wb_end(void); /* End of WB assembly code */
#endif
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