| /* Copyright (c) 2012-2013, 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 The Linux Foundation 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 "AS IS" AND ANY EXPRESS OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| * 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 <reg.h> |
| #include <debug.h> |
| #include <malloc.h> |
| #include <smem.h> |
| #include <stdint.h> |
| #include <libfdt.h> |
| #include <platform.h> |
| #include <platform/iomap.h> |
| #include <dev_tree.h> |
| |
| #define SIZE_1M (1024 * 1024) |
| |
| static struct smem_ram_ptable ram_ptable; |
| |
| struct smem_ram_ptable* target_smem_ram_ptable_init() |
| { |
| /* Make sure RAM partition table is initialized */ |
| ASSERT(smem_ram_ptable_init(&ram_ptable)); |
| |
| return &ram_ptable; |
| } |
| |
| /* Funtion to add the ram partition entries into device tree. |
| * The function assumes that all the entire fixed memory regions should |
| * be listed in the first bank of the passed in ddr regions. |
| */ |
| uint32_t target_dev_tree_mem(void *fdt, uint32_t memory_node_offset) |
| { |
| unsigned int i; |
| int ret; |
| |
| for (i = 0; i < ram_ptable.len; i++) |
| { |
| if ((ram_ptable.parts[i].category == SDRAM) && |
| (ram_ptable.parts[i].type == SYS_MEMORY)) |
| { |
| if (ram_ptable.parts[i].start == 0) |
| { |
| /* Pass along all other usable memory regions to Linux */ |
| /* Any memory not accessible by the kernel which is below the |
| * kernel start address must *not* be given to the kernel. |
| */ |
| ret = dev_tree_add_mem_info(fdt, |
| memory_node_offset, |
| ram_ptable.parts[i].start + 3*SIZE_1M, |
| ram_ptable.parts[i].size - 3*SIZE_1M); |
| |
| } |
| else |
| { |
| /* Pass along all other usable memory regions to Linux */ |
| ret = dev_tree_add_mem_info(fdt, |
| memory_node_offset, |
| ram_ptable.parts[i].start, |
| ram_ptable.parts[i].size); |
| |
| } |
| |
| |
| if (ret) |
| { |
| dprintf(CRITICAL, "Failed to add memory bank addresses to device tree\n"); |
| goto target_dev_tree_mem_err; |
| } |
| } |
| } |
| |
| target_dev_tree_mem_err: |
| |
| return ret; |
| } |
| |
| void *target_get_scratch_address(void) |
| { |
| return ((void *) VA((addr_t)SCRATCH_REGION1)); |
| } |
| |
| unsigned target_get_max_flash_size(void) |
| { |
| return (SCRATCH_REGION1_SIZE + SCRATCH_REGION2_SIZE); |
| } |