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Diffstat (limited to 'hw/arm/armv7m.c')
-rw-r--r--hw/arm/armv7m.c39
1 files changed, 6 insertions, 33 deletions
diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c
index ef24ca40fc..c6eab6de30 100644
--- a/hw/arm/armv7m.c
+++ b/hw/arm/armv7m.c
@@ -163,30 +163,23 @@ static void armv7m_reset(void *opaque)
}
/* Init CPU and memory for a v7-M based board.
- flash_size and sram_size are in kb.
+ mem_size is in bytes.
Returns the NVIC array. */
-qemu_irq *armv7m_init(MemoryRegion *system_memory,
- int flash_size, int sram_size,
+qemu_irq *armv7m_init(MemoryRegion *system_memory, int mem_size, int num_irq,
const char *kernel_filename, const char *cpu_model)
{
ARMCPU *cpu;
CPUARMState *env;
DeviceState *nvic;
- /* FIXME: make this local state. */
- static qemu_irq pic[64];
+ qemu_irq *pic = g_new(qemu_irq, num_irq);
int image_size;
uint64_t entry;
uint64_t lowaddr;
int i;
int big_endian;
- MemoryRegion *sram = g_new(MemoryRegion, 1);
- MemoryRegion *flash = g_new(MemoryRegion, 1);
MemoryRegion *hack = g_new(MemoryRegion, 1);
- flash_size *= 1024;
- sram_size *= 1024;
-
if (cpu_model == NULL) {
cpu_model = "cortex-m3";
}
@@ -197,35 +190,15 @@ qemu_irq *armv7m_init(MemoryRegion *system_memory,
}
env = &cpu->env;
-#if 0
- /* > 32Mb SRAM gets complicated because it overlaps the bitband area.
- We don't have proper commandline options, so allocate half of memory
- as SRAM, up to a maximum of 32Mb, and the rest as code. */
- if (ram_size > (512 + 32) * 1024 * 1024)
- ram_size = (512 + 32) * 1024 * 1024;
- sram_size = (ram_size / 2) & TARGET_PAGE_MASK;
- if (sram_size > 32 * 1024 * 1024)
- sram_size = 32 * 1024 * 1024;
- code_size = ram_size - sram_size;
-#endif
-
- /* Flash programming is done via the SCU, so pretend it is ROM. */
- memory_region_init_ram(flash, NULL, "armv7m.flash", flash_size,
- &error_abort);
- vmstate_register_ram_global(flash);
- memory_region_set_readonly(flash, true);
- memory_region_add_subregion(system_memory, 0, flash);
- memory_region_init_ram(sram, NULL, "armv7m.sram", sram_size, &error_abort);
- vmstate_register_ram_global(sram);
- memory_region_add_subregion(system_memory, 0x20000000, sram);
armv7m_bitband_init();
nvic = qdev_create(NULL, "armv7m_nvic");
+ qdev_prop_set_uint32(nvic, "num-irq", num_irq);
env->nvic = nvic;
qdev_init_nofail(nvic);
sysbus_connect_irq(SYS_BUS_DEVICE(nvic), 0,
qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ));
- for (i = 0; i < 64; i++) {
+ for (i = 0; i < num_irq; i++) {
pic[i] = qdev_get_gpio_in(nvic, i);
}
@@ -244,7 +217,7 @@ qemu_irq *armv7m_init(MemoryRegion *system_memory,
image_size = load_elf(kernel_filename, NULL, NULL, &entry, &lowaddr,
NULL, big_endian, ELF_MACHINE, 1);
if (image_size < 0) {
- image_size = load_image_targphys(kernel_filename, 0, flash_size);
+ image_size = load_image_targphys(kernel_filename, 0, mem_size);
lowaddr = 0;
}
if (image_size < 0) {