/* 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)
{
struct smem_ram_ptable ram_ptable;
uint32_t i;
int ret = 0;
/* Make sure RAM partition table is initialized */
ASSERT(smem_ram_ptable_init(&ram_ptable));
/* Calculating the size of the mem_info_ptr */
for (i = 0 ; i < ram_ptable.len; i++)
{
if((ram_ptable.parts[i].category == SDRAM) &&
(ram_ptable.parts[i].type == SYS_MEMORY))
{
/* 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;
}
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;
}
uint32_t target_dev_tree_mem(void *fdt, uint32_t memory_node_offset)
{
ram_partition ptn_entry;
unsigned int index;
int ret = 0;
uint32_t len = 0;
/* Make sure RAM partition table is initialized */
ASSERT(smem_ram_ptable_init_v1());
len = smem_get_ram_ptable_len();
/* Calculating the size of the mem_info_ptr */
for (index = 0 ; index < len; index++)
{
smem_get_ram_ptable_entry(&ptn_entry, index);
if((ptn_entry.category == SDRAM) &&
(ptn_entry.type == SYS_MEMORY))
{
/* Pass along all other usable memory regions to Linux */
ret = dev_tree_add_mem_info(fdt,
memory_node_offset,
ptn_entry.start,
ptn_entry.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;
}
/* 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;
}