| /* Copyright (c) 2012, 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) |
| |
| typedef struct { |
| uint32_t size; |
| uint32_t start_addr; |
| }mem_info; |
| |
| static struct smem_ram_ptable ram_ptable; |
| |
| mem_info mdm9625_default_fixed_memory[] = { |
| { .size = (29 * SIZE_1M), |
| .start_addr = SDRAM_START_ADDR + |
| (2 * SIZE_1M) |
| }, |
| { .size = (10 * SIZE_1M), |
| .start_addr = SDRAM_START_ADDR + |
| (118 * SIZE_1M) |
| }, |
| }; |
| |
| 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; |
| } |
| |
| int target_add_first_mem_bank(void *fdt, |
| uint32_t offset, |
| mem_info usable_mem_map[], |
| uint32_t num_regions) |
| { |
| uint32_t i; |
| int ret; |
| |
| ASSERT(num_regions); |
| |
| dprintf(SPEW, "Number of HLOS regions in 1st bank = %u\n", num_regions); |
| |
| for (i = 0; i < num_regions; i++) |
| { |
| ret = dev_tree_add_mem_info(fdt, |
| offset, |
| usable_mem_map[i].start_addr, |
| usable_mem_map[i].size); |
| } |
| return ret; |
| } |
| |
| /* 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) |
| { |
| uint32_t last_fixed_addr; |
| int n; |
| unsigned int i; |
| int ret; |
| |
| n = ARRAY_SIZE(mdm9625_default_fixed_memory); |
| |
| last_fixed_addr = mdm9625_default_fixed_memory[n-1].start_addr + |
| mdm9625_default_fixed_memory[n-1].size; |
| |
| 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 <= last_fixed_addr) && |
| ((ram_ptable.parts[i].start + ram_ptable.parts[i].size) >= last_fixed_addr)) |
| { |
| |
| /* Pass along all fixed memory regions to Linux */ |
| ret = target_add_first_mem_bank(fdt, |
| memory_node_offset, |
| mdm9625_default_fixed_memory, |
| ARRAY_SIZE(mdm9625_default_fixed_memory)); |
| |
| if (ret) |
| { |
| dprintf(CRITICAL, "Failed to add first bank fixed memory addresses\n"); |
| goto target_dev_tree_mem_err; |
| } |
| |
| if((ram_ptable.parts[i].start + ram_ptable.parts[i].size) != last_fixed_addr) |
| { |
| /* Pass the memory beyond the fixed memory present in the partition */ |
| ret = dev_tree_add_mem_info(fdt, |
| memory_node_offset, |
| ram_ptable.parts[i].start + last_fixed_addr, |
| ram_ptable.parts[i].size - last_fixed_addr); |
| |
| if (ret) |
| { |
| dprintf(CRITICAL, "Failed to add first bank memory addresses\n"); |
| goto target_dev_tree_mem_err; |
| } |
| } |
| } |
| 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 secondary banks memory addresses\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); |
| } |