| wangxl | 1ddbd09 | 2015-02-03 20:31:24 +0800 | [diff] [blame] | 1 | /* Copyright (c) 2012, The Linux Foundation. All rights reserved. |
| 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of The Linux Foundation nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #if DEVICE_TREE /* If using device tree */ |
| 30 | |
| 31 | #include <reg.h> |
| 32 | #include <debug.h> |
| 33 | #include <malloc.h> |
| 34 | #include <smem.h> |
| 35 | #include <stdint.h> |
| 36 | #include <libfdt.h> |
| 37 | #include <platform/iomap.h> |
| 38 | #include <dev_tree.h> |
| 39 | |
| 40 | /* Funtion to add the ram partition entries into device tree. |
| 41 | * The function assumes that all the entire fixed memory regions should |
| 42 | * be listed in the first bank of the passed in ddr regions. |
| 43 | */ |
| 44 | uint32_t target_dev_tree_mem(void *fdt, uint32_t memory_node_offset) |
| 45 | { |
| 46 | struct smem_ram_ptable ram_ptable; |
| 47 | unsigned int i; |
| 48 | int ret = 0; |
| 49 | |
| 50 | /* Make sure RAM partition table is initialized */ |
| 51 | ASSERT(smem_ram_ptable_init(&ram_ptable)); |
| 52 | |
| 53 | /* Calculating the size of the mem_info_ptr */ |
| 54 | for (i = 0 ; i < ram_ptable.len; i++) |
| 55 | { |
| 56 | if((ram_ptable.parts[i].category == SDRAM) && |
| 57 | (ram_ptable.parts[i].type == SYS_MEMORY)) |
| 58 | { |
| 59 | |
| 60 | /* Pass along all other usable memory regions to Linux */ |
| 61 | ret = dev_tree_add_mem_info(fdt, |
| 62 | memory_node_offset, |
| 63 | ram_ptable.parts[i].start, |
| 64 | ram_ptable.parts[i].size); |
| 65 | |
| 66 | if (ret) |
| 67 | { |
| 68 | dprintf(CRITICAL, "Failed to add secondary banks memory addresses\n"); |
| 69 | goto target_dev_tree_mem_err; |
| 70 | } |
| 71 | |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | target_dev_tree_mem_err: |
| 76 | |
| 77 | return ret; |
| 78 | } |
| 79 | |
| 80 | void *target_get_scratch_address(void) |
| 81 | { |
| 82 | return ((void *)SCRATCH_ADDR); |
| 83 | } |
| 84 | |
| 85 | unsigned target_get_max_flash_size(void) |
| 86 | { |
| 87 | return (512 * 1024 * 1024); |
| 88 | } |
| 89 | #endif /* DEVICE_TREE */ |