| /* |
| * Copyright (c) 2009, Google Inc. |
| * All rights reserved. |
| * Copyright (c) 2009-2011, The Linux Foundation. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google, Inc. nor the names of its contributors |
| * may be used to endorse or promote products derived from this |
| * software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
| * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
| * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
| * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS |
| * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED |
| * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <debug.h> |
| #include <dev/keys.h> |
| #include <dev/gpio_keypad.h> |
| #include <lib/ptable.h> |
| #include <dev/flash.h> |
| #include <smem.h> |
| #include <platform.h> |
| |
| #define LINUX_MACHTYPE 2708 |
| |
| #define VARIABLE_LENGTH 0x10101010 |
| #define DIFF_START_ADDR 0xF0F0F0F0 |
| #define NUM_PAGES_PER_BLOCK 0x40 |
| |
| static struct ptable flash_ptable; |
| |
| /* for these partitions, start will be offset by either what we get from |
| * smem, or from the above offset if smem is not useful. Also, we should |
| * probably have smem_ptable code populate our flash_ptable. |
| * |
| * When smem provides us with a full partition table, we can get rid of |
| * this altogether. |
| * |
| */ |
| static struct ptentry board_part_list[] = { |
| { |
| .start = 0, |
| .length = 5 /* In MB */, |
| .name = "boot", |
| }, |
| { |
| .start = DIFF_START_ADDR, |
| .length = 100 /* In MB */, |
| .name = "system", |
| }, |
| { |
| .start = DIFF_START_ADDR, |
| .length = 30 /* In MB */, |
| .name = "cache", |
| }, |
| { |
| .start = DIFF_START_ADDR, |
| .length = 1 /* In MB */, |
| .name = "misc", |
| }, |
| { |
| .start = DIFF_START_ADDR, |
| .length = VARIABLE_LENGTH, |
| .name = "userdata", |
| }, |
| { |
| .start = DIFF_START_ADDR, |
| .length = 5 /* In MB */, |
| .name = "recovery", |
| }, |
| }; |
| static int num_parts = sizeof(board_part_list)/sizeof(struct ptentry); |
| |
| void smem_ptable_init(void); |
| unsigned smem_get_apps_flash_start(void); |
| |
| void keypad_init(void); |
| |
| void target_init(void) |
| { |
| unsigned offset; |
| struct flash_info *flash_info; |
| unsigned total_num_of_blocks; |
| unsigned next_ptr_start_adr = 0; |
| unsigned blocks_per_1MB = 8; /* Default value of 2k page size on 256MB flash drive*/ |
| int i; |
| |
| dprintf(INFO, "target_init()\n"); |
| |
| #if (!ENABLE_NANDWRITE) |
| keys_init(); |
| keypad_init(); |
| #endif |
| ptable_init(&flash_ptable); |
| smem_ptable_init(); |
| |
| flash_init(); |
| flash_info = flash_get_info(); |
| ASSERT(flash_info); |
| |
| offset = smem_get_apps_flash_start(); |
| if (offset == 0xffffffff) |
| while(1); |
| |
| total_num_of_blocks = flash_info->num_blocks; |
| blocks_per_1MB = (1 << 20) / (flash_info->block_size); |
| |
| for (i = 0; i < num_parts; i++) { |
| struct ptentry *ptn = &board_part_list[i]; |
| unsigned len = ((ptn->length) * blocks_per_1MB); |
| |
| if(ptn->start != 0) |
| ASSERT(ptn->start == DIFF_START_ADDR); |
| |
| ptn->start = next_ptr_start_adr; |
| |
| if(ptn->length == VARIABLE_LENGTH) |
| { |
| unsigned length_for_prt = 0; |
| unsigned j; |
| for (j = i+1; j < num_parts; j++) |
| { |
| struct ptentry *temp_ptn = &board_part_list[j]; |
| ASSERT(temp_ptn->length != VARIABLE_LENGTH); |
| length_for_prt += ((temp_ptn->length) * blocks_per_1MB); |
| } |
| len = (total_num_of_blocks - 1) - (offset + ptn->start + length_for_prt); |
| ASSERT(len >= 0); |
| } |
| |
| next_ptr_start_adr = ptn->start + len; |
| ptable_add(&flash_ptable, ptn->name, offset + ptn->start, |
| len, ptn->flags, TYPE_APPS_PARTITION, PERM_WRITEABLE); |
| } |
| |
| smem_add_modem_partitions(&flash_ptable); |
| |
| ptable_dump(&flash_ptable); |
| flash_set_ptable(&flash_ptable); |
| } |
| |
| unsigned board_machtype(void) |
| { |
| return LINUX_MACHTYPE; |
| } |
| |
| void reboot_device(unsigned reboot_reason) |
| { |
| reboot(reboot_reason); |
| } |
| |
| unsigned check_reboot_mode(void) |
| { |
| unsigned mode[2] = {0, 0}; |
| unsigned int mode_len = sizeof(mode); |
| unsigned smem_status; |
| |
| smem_status = smem_read_alloc_entry(SMEM_APPS_BOOT_MODE, |
| &mode, mode_len ); |
| if(smem_status) |
| { |
| dprintf(CRITICAL, "ERROR: unable to read shared memory for reboot mode\n"); |
| return 0; |
| } |
| return mode[0]; |
| } |