299 lines
7.8 KiB
C
299 lines
7.8 KiB
C
/*
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* Copyright (c) 2009, Google Inc.
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* All rights reserved.
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* Copyright (c) 2009-2011, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <reg.h>
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#include <debug.h>
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#include <dev/keys.h>
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#include <lib/ptable.h>
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#include <dev/flash.h>
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#include <smem.h>
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#include <mmc.h>
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#include <platform/iomap.h>
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#include <platform.h>
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#define LINUX_MACHTYPE_7x27_SURF 2705
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#define LINUX_MACHTYPE_7x27_FFA 2706
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#define VARIABLE_LENGTH 0x10101010
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#define DIFF_START_ADDR 0xF0F0F0F0
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#define NUM_PAGES_PER_BLOCK 0x40
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static struct ptable flash_ptable;
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static unsigned mmc_sdc_base[] = { MSM_SDC1_BASE, MSM_SDC2_BASE, MSM_SDC3_BASE, MSM_SDC4_BASE};
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static int hw_platform_type = -1;
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/* for these partitions, start will be offset by either what we get from
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* smem, or from the above offset if smem is not useful. Also, we should
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* probably have smem_ptable code populate our flash_ptable.
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*
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* When smem provides us with a full partition table, we can get rid of
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* this altogether.
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*
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*/
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static struct ptentry board_part_list[] = {
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{
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.start = 0,
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.length = 5 /* In MB */,
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.name = "boot",
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},
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{
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.start = DIFF_START_ADDR,
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.length = 180 /* In MB */,
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.name = "system",
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},
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{
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.start = DIFF_START_ADDR,
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.length = 4 /* In MB */,
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.name = "cache",
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},
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{
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.start = DIFF_START_ADDR,
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.length = 4 /* In MB */,
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.name = "misc",
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},
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{
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.start = DIFF_START_ADDR,
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.length = VARIABLE_LENGTH,
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.name = "userdata",
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},
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{
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.start = DIFF_START_ADDR,
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.length = 2 /* In MB */,
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.name = "persist",
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},
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{
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.start = DIFF_START_ADDR,
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.length = 5 /* In MB */,
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.name = "recovery",
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},
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};
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static int num_parts = sizeof(board_part_list)/sizeof(struct ptentry);
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void smem_ptable_init(void);
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unsigned smem_get_apps_flash_start(void);
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void keypad_init(void);
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int target_is_emmc_boot(void);
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void target_init(void)
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{
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unsigned offset;
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struct flash_info *flash_info;
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unsigned total_num_of_blocks;
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unsigned next_ptr_start_adr = 0;
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unsigned blocks_per_1MB = 8; /* Default value of 2k page size on 256MB flash drive*/
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unsigned char slot;
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unsigned int base_addr;
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int i;
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dprintf(INFO, "target_init()\n");
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/* Display splash screen if enabled */
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#if DISPLAY_SPLASH_SCREEN
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display_init();
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dprintf(SPEW, "Diplay initialized\n");
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display_image_on_screen();
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#endif
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#if (!ENABLE_NANDWRITE)
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keys_init();
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keypad_init();
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#endif
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if (target_is_emmc_boot())
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{
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/* Must wait for modem-up before we can intialize MMC.
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*/
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while (readl(MSM_SHARED_BASE + 0x14) != 1);
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/* Trying SDC3 first */
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slot = 3;
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base_addr = mmc_sdc_base[slot - 1];
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if(mmc_boot_main(slot, base_addr))
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{
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/* Trying SDC1 next */
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slot = 1;
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base_addr = mmc_sdc_base[slot - 1];
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if(mmc_boot_main(slot, base_addr))
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{
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dprintf(CRITICAL, "mmc init failed!");
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ASSERT(0);
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}
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}
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return;
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}
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ptable_init(&flash_ptable);
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smem_ptable_init();
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flash_init();
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flash_info = flash_get_info();
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ASSERT(flash_info);
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offset = smem_get_apps_flash_start();
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if (offset == 0xffffffff)
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while(1);
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total_num_of_blocks = flash_info->num_blocks;
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blocks_per_1MB = (1 << 20) / (flash_info->block_size);
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for (i = 0; i < num_parts; i++) {
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struct ptentry *ptn = &board_part_list[i];
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unsigned len = ((ptn->length) * blocks_per_1MB);
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if(ptn->start != 0)
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ASSERT(ptn->start == DIFF_START_ADDR);
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ptn->start = next_ptr_start_adr;
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if(ptn->length == VARIABLE_LENGTH)
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{
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unsigned length_for_prt = 0;
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unsigned j;
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for (j = i+1; j < num_parts; j++)
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{
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struct ptentry *temp_ptn = &board_part_list[j];
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ASSERT(temp_ptn->length != VARIABLE_LENGTH);
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length_for_prt += ((temp_ptn->length) * blocks_per_1MB);
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}
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len = total_num_of_blocks - (offset + ptn->start + length_for_prt);
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ASSERT(len >= 0);
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}
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next_ptr_start_adr = ptn->start + len;
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ptable_add(&flash_ptable, ptn->name, offset + ptn->start,
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len, ptn->flags, TYPE_APPS_PARTITION, PERM_WRITEABLE);
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}
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smem_add_modem_partitions(&flash_ptable);
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ptable_dump(&flash_ptable);
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flash_set_ptable(&flash_ptable);
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}
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unsigned board_machtype(void)
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{
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struct smem_board_info_v2 board_info_v2;
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unsigned int board_info_len = 0;
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enum platform platform_type = 0;
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unsigned smem_status;
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unsigned format = 0;
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if(hw_platform_type != -1)
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return hw_platform_type;
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smem_status = smem_read_alloc_entry_offset(SMEM_BOARD_INFO_LOCATION,
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&format, sizeof(format), 0);
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if(!smem_status)
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{
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if(format == 2)
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{
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board_info_len = sizeof(board_info_v2);
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smem_status = smem_read_alloc_entry(SMEM_BOARD_INFO_LOCATION,
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&board_info_v2, board_info_len);
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if(!smem_status)
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{
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char *build_type = (char *)(board_info_v2.build_id)+ 12;
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switch (*build_type)
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{
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case 'F':
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hw_platform_type = LINUX_MACHTYPE_7x27_FFA; break;
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case 'S':
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hw_platform_type = LINUX_MACHTYPE_7x27_SURF; break;
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default:
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hw_platform_type = LINUX_MACHTYPE_7x27_SURF; break;
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}
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}
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}
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} else {
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hw_platform_type = LINUX_MACHTYPE_7x27_SURF;
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}
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return hw_platform_type;
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}
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void reboot_device(unsigned reboot_reason)
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{
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reboot(reboot_reason);
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}
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unsigned check_reboot_mode(void)
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{
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unsigned mode[2] = {0, 0};
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unsigned int mode_len = sizeof(mode);
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unsigned smem_status;
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smem_status = smem_read_alloc_entry(SMEM_APPS_BOOT_MODE,
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&mode, mode_len );
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if(smem_status)
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{
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dprintf(CRITICAL, "ERROR: unable to read shared memory for reboot mode\n");
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return 0;
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}
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return mode[0];
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}
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static unsigned target_check_power_on_reason(void)
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{
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unsigned power_on_status = 0;
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unsigned int status_len = sizeof(power_on_status);
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unsigned smem_status;
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smem_status = smem_read_alloc_entry(SMEM_POWER_ON_STATUS_INFO,
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&power_on_status, status_len);
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if (smem_status)
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{
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dprintf(CRITICAL, "ERROR: unable to read shared memory for power on reason\n");
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}
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return power_on_status;
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}
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#if _EMMC_BOOT
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void target_serialno(unsigned char *buf)
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{
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unsigned int serialno;
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serialno = mmc_get_psn();
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sprintf(buf,"%x",serialno);
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}
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int emmc_recovery_init(void)
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{
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int rc;
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rc = _emmc_recovery_init();
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return rc;
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}
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#endif
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