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arm/collie: use memdev for RAM 

memory_region_allocate_system_memory() API is going away, so
replace it with memdev allocated MemoryRegion. The later is
initialized by generic code, so board only needs to opt in
to memdev scheme by providing
  MachineClass::default_ram_id
and using MachineState::ram instead of manually initializing
RAM memory region.

PS:
 - while at it add check for user supplied RAM size and error
   out if it mismatches board expected value.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200219160953.13771-12-imammedo@redhat.com>
This commit is contained in:
Igor Mammedov 2020-02-19 11:08:45 -05:00 committed by Patchew Importer
parent afcbaed668
commit 00b9829f83
1 changed files with 12 additions and 4 deletions
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16
hw/arm/collie.c
View File

@ -10,6 +10,7 @@
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qemu/cutils.h"
#include "hw/sysbus.h"
#include "hw/boards.h"
#include "strongarm.h"
@ -27,13 +28,18 @@ static void collie_init(MachineState *machine)
{
StrongARMState *s;
DriveInfo *dinfo;
MemoryRegion *sdram = g_new(MemoryRegion, 1);
MachineClass *mc = MACHINE_GET_CLASS(machine);
if (machine->ram_size != mc->default_ram_size) {
char *sz = size_to_str(mc->default_ram_size);
error_report("Invalid RAM size, should be %s", sz);
g_free(sz);
exit(EXIT_FAILURE);
}
s = sa1110_init(machine->cpu_type);
memory_region_allocate_system_memory(sdram, NULL, "strongarm.sdram",
collie_binfo.ram_size);
memory_region_add_subregion(get_system_memory(), SA_SDCS0, sdram);
memory_region_add_subregion(get_system_memory(), SA_SDCS0, machine->ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
pflash_cfi01_register(SA_CS0, "collie.fl1", 0x02000000,
@ -57,6 +63,8 @@ static void collie_machine_init(MachineClass *mc)
mc->init = collie_init;
mc->ignore_memory_transaction_failures = true;
mc->default_cpu_type = ARM_CPU_TYPE_NAME("sa1110");
mc->default_ram_size = 0x20000000;
mc->default_ram_id = "strongarm.sdram";
}
DEFINE_MACHINE("collie", collie_machine_init)