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/*
* QEMU ETRAX System Emulator
*
* Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <time.h>
#include <sys/time.h>
#include "vl.h"
extern FILE *logfile;
static void main_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
}
static uint32_t fs_mmio_readb (void *opaque, target_phys_addr_t addr)
{
CPUState *env = opaque;
uint32_t r = 0;
printf ("%s %x pc=%x\n", __func__, addr, env->pc);
return r;
}
static uint32_t fs_mmio_readw (void *opaque, target_phys_addr_t addr)
{
CPUState *env = opaque;
uint32_t r = 0;
printf ("%s %x pc=%x\n", __func__, addr, env->pc);
return r;
}
static uint32_t fs_mmio_readl (void *opaque, target_phys_addr_t addr)
{
CPUState *env = opaque;
uint32_t r = 0;
printf ("%s %x p=%x\n", __func__, addr, env->pc);
return r;
}
static void
fs_mmio_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
{
CPUState *env = opaque;
printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
}
static void
fs_mmio_writew (void *opaque, target_phys_addr_t addr, uint32_t value)
{
CPUState *env = opaque;
printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
}
static void
fs_mmio_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
{
CPUState *env = opaque;
printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
}
static CPUReadMemoryFunc *fs_mmio_read[] = {
&fs_mmio_readb,
&fs_mmio_readw,
&fs_mmio_readl,
};
static CPUWriteMemoryFunc *fs_mmio_write[] = {
&fs_mmio_writeb,
&fs_mmio_writew,
&fs_mmio_writel,
};
/* Init functions for different blocks. */
extern void etraxfs_timer_init(CPUState *env, qemu_irq *irqs);
extern void etraxfs_ser_init(CPUState *env, qemu_irq *irqs);
void etrax_ack_irq(CPUState *env, uint32_t mask)
{
env->pending_interrupts &= ~mask;
}
static void dummy_cpu_set_irq(void *opaque, int irq, int level)
{
CPUState *env = opaque;
/* Hmm, should this really be done here? */
env->pending_interrupts |= 1 << irq;
cpu_interrupt(env, CPU_INTERRUPT_HARD);
}
static
void bareetraxfs_init (int ram_size, int vga_ram_size, const char *boot_device,
DisplayState *ds, const char **fd_filename, int snapshot,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env;
qemu_irq *irqs;
int kernel_size;
int internal_regs;
/* init CPUs */
if (cpu_model == NULL) {
cpu_model = "crisv32";
}
env = cpu_init(cpu_model);
/* register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); */
qemu_register_reset(main_cpu_reset, env);
irqs = qemu_allocate_irqs(dummy_cpu_set_irq, env, 32);
internal_regs = cpu_register_io_memory(0,
fs_mmio_read, fs_mmio_write, env);
/* 0xb0050000 is the last reg. */
cpu_register_physical_memory (0xac000000, 0x4010000, internal_regs);
/* allocate RAM */
cpu_register_physical_memory(0x40000000, ram_size, IO_MEM_RAM);
etraxfs_timer_init(env, irqs);
etraxfs_ser_init(env, irqs);
kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);
/* magic for boot. */
env->regs[8] = 0x56902387;
env->regs[9] = 0x40004000 + kernel_size;
env->pc = 0x40004000;
{
unsigned char *ptr = phys_ram_base + 0x4000;
int i;
for (i = 0; i < 8; i++)
{
printf ("%2.2x ", ptr[i]);
}
printf("\n");
}
printf ("pc =%x\n", env->pc);
printf ("ram size =%d\n", ram_size);
printf ("kernel name =%s\n", kernel_filename);
printf ("kernel size =%d\n", kernel_size);
printf ("cpu haltd =%d\n", env->halted);
}
void DMA_run(void)
{
}
void pic_info()
{
}
void irq_info()
{
}
QEMUMachine bareetraxfs_machine = {
"bareetraxfs",
"Bare ETRAX FS board",
bareetraxfs_init,
};
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