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/* 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);
}