* Copyright (c) 2006-2007 CodeSourcery.
* Written by Paul Brook
*
- * This code is licenced under the GPL.
+ * This code is licensed under the GPL.
*/
#include "sysbus.h"
#include "arm-misc.h"
-#include "sysemu.h"
#include "loader.h"
#include "elf.h"
/* Bitbanded IO. Each word corresponds to a single bit. */
-/* Get the byte address of the real memory for a bitband acess. */
+/* Get the byte address of the real memory for a bitband access. */
static inline uint32_t bitband_addr(void * opaque, uint32_t addr)
{
uint32_t res;
int iomemtype;
iomemtype = cpu_register_io_memory(bitband_readfn, bitband_writefn,
- &s->base);
+ &s->base, DEVICE_NATIVE_ENDIAN);
sysbus_init_mmio(dev, 0x02000000, iomemtype);
return 0;
}
}
/* Board init. */
+
+static void armv7m_reset(void *opaque)
+{
+ cpu_reset((CPUState *)opaque);
+}
+
/* Init CPU and memory for a v7-M based board.
flash_size and sram_size are in kb.
Returns the NVIC array. */
/* FIXME: make this local state. */
static qemu_irq pic[64];
qemu_irq *cpu_pic;
- uint32_t pc;
int image_size;
uint64_t entry;
uint64_t lowaddr;
/* Flash programming is done via the SCU, so pretend it is ROM. */
cpu_register_physical_memory(0, flash_size,
- qemu_ram_alloc(flash_size) | IO_MEM_ROM);
+ qemu_ram_alloc(NULL, "armv7m.flash",
+ flash_size) | IO_MEM_ROM);
cpu_register_physical_memory(0x20000000, sram_size,
- qemu_ram_alloc(sram_size) | IO_MEM_RAM);
+ qemu_ram_alloc(NULL, "armv7m.sram",
+ sram_size) | IO_MEM_RAM);
armv7m_bitband_init();
nvic = qdev_create(NULL, "armv7m_nvic");
- env->v7m.nvic = nvic;
+ env->nvic = nvic;
qdev_init_nofail(nvic);
cpu_pic = arm_pic_init_cpu(env);
sysbus_connect_irq(sysbus_from_qdev(nvic), 0, cpu_pic[ARM_PIC_CPU_IRQ]);
exit(1);
}
- /* If the image was loaded at address zero then assume it is a
- regular ROM image and perform the normal CPU reset sequence.
- Otherwise jump directly to the entry point. */
- if (lowaddr == 0) {
- env->regs[13] = ldl_phys(0);
- pc = ldl_phys(4);
- } else {
- pc = entry;
- }
- env->thumb = pc & 1;
- env->regs[15] = pc & ~1;
-
/* Hack to map an additional page of ram at the top of the address
space. This stops qemu complaining about executing code outside RAM
when returning from an exception. */
cpu_register_physical_memory(0xfffff000, 0x1000,
- qemu_ram_alloc(0x1000) | IO_MEM_RAM);
+ qemu_ram_alloc(NULL, "armv7m.hack",
+ 0x1000) | IO_MEM_RAM);
+ qemu_register_reset(armv7m_reset, env);
return pic;
}