root / hw / etraxfs.c @ 83fa1010
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/*
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* QEMU ETRAX System Emulator
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*
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* Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <time.h> |
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#include <sys/time.h> |
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#include "vl.h" |
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extern FILE *logfile;
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static void main_cpu_reset(void *opaque) |
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{ |
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CPUState *env = opaque; |
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cpu_reset(env); |
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} |
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static uint32_t fs_mmio_readb (void *opaque, target_phys_addr_t addr) |
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{ |
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CPUState *env = opaque; |
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uint32_t r = 0;
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printf ("%s %x pc=%x\n", __func__, addr, env->pc);
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return r;
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} |
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static uint32_t fs_mmio_readw (void *opaque, target_phys_addr_t addr) |
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{ |
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CPUState *env = opaque; |
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uint32_t r = 0;
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printf ("%s %x pc=%x\n", __func__, addr, env->pc);
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return r;
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} |
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static uint32_t fs_mmio_readl (void *opaque, target_phys_addr_t addr) |
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{ |
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CPUState *env = opaque; |
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uint32_t r = 0;
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printf ("%s %x p=%x\n", __func__, addr, env->pc);
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return r;
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} |
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static void |
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fs_mmio_writeb (void *opaque, target_phys_addr_t addr, uint32_t value)
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{ |
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CPUState *env = opaque; |
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printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
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} |
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static void |
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fs_mmio_writew (void *opaque, target_phys_addr_t addr, uint32_t value)
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{ |
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CPUState *env = opaque; |
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printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
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} |
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static void |
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fs_mmio_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
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{ |
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CPUState *env = opaque; |
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printf ("%s %x %x pc=%x\n", __func__, addr, value, env->pc);
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} |
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static CPUReadMemoryFunc *fs_mmio_read[] = {
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&fs_mmio_readb, |
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&fs_mmio_readw, |
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&fs_mmio_readl, |
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}; |
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static CPUWriteMemoryFunc *fs_mmio_write[] = {
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&fs_mmio_writeb, |
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&fs_mmio_writew, |
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&fs_mmio_writel, |
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}; |
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/* Init functions for different blocks. */
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extern void etraxfs_timer_init(CPUState *env, qemu_irq *irqs); |
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extern void etraxfs_ser_init(CPUState *env, qemu_irq *irqs); |
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void etrax_ack_irq(CPUState *env, uint32_t mask)
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{ |
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env->pending_interrupts &= ~mask; |
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} |
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static void dummy_cpu_set_irq(void *opaque, int irq, int level) |
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{ |
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CPUState *env = opaque; |
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/* Hmm, should this really be done here? */
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env->pending_interrupts |= 1 << irq;
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cpu_interrupt(env, CPU_INTERRUPT_HARD); |
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} |
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static
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void bareetraxfs_init (int ram_size, int vga_ram_size, int boot_device, |
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DisplayState *ds, const char **fd_filename, int snapshot, |
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const char *kernel_filename, const char *kernel_cmdline, |
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const char *initrd_filename, const char *cpu_model) |
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{ |
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CPUState *env; |
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qemu_irq *irqs; |
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int kernel_size;
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int internal_regs;
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/* init CPUs */
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if (cpu_model == NULL) { |
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cpu_model = "crisv32";
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} |
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env = cpu_init(); |
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/* register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); */
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qemu_register_reset(main_cpu_reset, env); |
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irqs = qemu_allocate_irqs(dummy_cpu_set_irq, env, 32);
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internal_regs = cpu_register_io_memory(0,
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fs_mmio_read, fs_mmio_write, env); |
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/* 0xb0050000 is the last reg. */
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cpu_register_physical_memory (0xac000000, 0x4010000, internal_regs); |
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/* allocate RAM */
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cpu_register_physical_memory(0x40000000, ram_size, IO_MEM_RAM);
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etraxfs_timer_init(env, irqs); |
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etraxfs_ser_init(env, irqs); |
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kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);
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/* magic for boot. */
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env->regs[8] = 0x56902387; |
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env->regs[9] = 0x40004000 + kernel_size; |
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env->pc = 0x40004000;
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{ |
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unsigned char *ptr = phys_ram_base + 0x4000; |
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int i;
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for (i = 0; i < 8; i++) |
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{ |
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printf ("%2.2x ", ptr[i]);
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} |
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printf("\n");
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} |
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printf ("pc =%x\n", env->pc);
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printf ("ram size =%d\n", ram_size);
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printf ("kernel name =%s\n", kernel_filename);
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printf ("kernel size =%d\n", kernel_size);
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printf ("cpu haltd =%d\n", env->halted);
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} |
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void DMA_run(void) |
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{ |
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} |
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void pic_info()
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{ |
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} |
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void irq_info()
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{ |
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} |
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QEMUMachine bareetraxfs_machine = { |
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"bareetraxfs",
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"Bare ETRAX FS board",
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bareetraxfs_init, |
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}; |