162 lines
3.6 KiB
C
162 lines
3.6 KiB
C
/*
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* (C) Copyright 2007-2013
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Jerry Wang <wangflord@allwinnertech.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <command.h>
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#include <bat.h>
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#include <sys_partition.h>
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#include <sys_config.h>
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#include <securestorage.h>
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DECLARE_GLOBAL_DATA_PTR;
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/*
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************************************************************************************************************
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*
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* function
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*
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* name :
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*
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* parmeters :
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*
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* return :
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*
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* note :
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*
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*
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************************************************************************************************************
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*/
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//#define SUNXI_SECURESTORAGE_TEST_ERASE
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int sunxi_keydata_burn_by_usb(void)
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{
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char buffer[512];
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#ifdef CONFIG_SUNXI_SECURE_STORAGE
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#ifndef SUNXI_SECURESTORAGE_TEST_ERASE
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int data_len;
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#endif
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#endif
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int ret;
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uint burn_private_start, burn_private_len;
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int workmode = uboot_spare_head.boot_data.work_mode;
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int if_need_burn_key=0;
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ret = script_parser_fetch("target", "burn_key", &if_need_burn_key, 1);
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if((ret) || (if_need_burn_key != 1))
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{
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return 0;
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}
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if(workmode != WORK_MODE_BOOT) //·ÇÆô¶¯Ä£Ê½£¬²»Ö´ÐÐ
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{
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puts("out of usb burn from boot: not boot mode\n");
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return 0;
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}
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if(gd->vbus_status == SUNXI_VBUS_NOT_EXIST) //vbus²»´æÔÚ£¬²»Ö´ÐÐ
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{
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puts("out of usb burn from boot: without usb\n");
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return 0;
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}
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// if(gd->power_step_level == BATTERY_RATIO_TOO_LOW_WITH_DCIN)
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// {
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// puts("out of usb burn from boot: not enough energy\n");
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// return 0;
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// }
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memset(buffer, 0, 512);
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#ifdef CONFIG_SUNXI_SECURE_STORAGE
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if(sunxi_secure_storage_init())
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#endif
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{
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printf("sunxi secure storage is not supported\n");
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burn_private_start = sunxi_partition_get_offset_byname("private");
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burn_private_len = sunxi_partition_get_size_byname("private");
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if(!burn_private_start)
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{
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printf("private partition is not exist\n");
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return -1;
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}
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else
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{
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ret = sunxi_flash_read(burn_private_start + burn_private_len - (8192+512)/512, 1, buffer);
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if(ret != 1)
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{
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printf("cant read private part\n");
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return -1;
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}
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if(!strcmp(buffer, "key_burned"))
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{
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printf("find key burned flag\n");
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return 0;
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}
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}
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}
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#ifdef CONFIG_SUNXI_SECURE_STORAGE
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else
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{
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#ifndef SUNXI_SECURESTORAGE_TEST_ERASE
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ret = sunxi_secure_storage_read("key_burned_flag", buffer, 512, &data_len);
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if(ret)
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{
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printf("sunxi secure storage has no flag\n");
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}
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else
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{
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if(!strcmp(buffer, "key_burned"))
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{
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printf("wrn: data has clean\n");
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return 0;
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}
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}
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#else
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if(!sunxi_secure_storage_erase_data_only("key_burned_flag"))
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sunxi_secure_storage_exit();
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return 0;
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#endif
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}
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#endif
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return do_burn_from_boot(NULL, 0, 0, NULL);
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}
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