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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 "hw.h"
#include "net.h"
#include "flash.h"
#include "sysemu.h"
#include "devices.h"
#include "boards.h"
#include "etraxfs_dma.h"
/* Init functions for different blocks. */
extern qemu_irq *etraxfs_pic_init(CPUState *env, target_phys_addr_t base);
void etraxfs_timer_init(CPUState *env, qemu_irq *irqs,
target_phys_addr_t base);
void *etraxfs_eth_init(NICInfo *nd, CPUState *env,
qemu_irq *irq, target_phys_addr_t base);
void etraxfs_ser_init(CPUState *env, qemu_irq *irq, CharDriverState *chr,
target_phys_addr_t base);
#define FLASH_SIZE 0x2000000
#define INTMEM_SIZE (128 * 1024)
static void *etraxfs_dmac;
static uint32_t bootstrap_pc;
static void main_cpu_reset(void *opaque)
{
CPUState *env = opaque;
cpu_reset(env);
env->pregs[PR_CCS] &= ~I_FLAG;
env->pc = bootstrap_pc;
}
static
void bareetraxfs_init (ram_addr_t ram_size, int vga_ram_size,
const char *boot_device, DisplayState *ds,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env;
qemu_irq *pic;
struct etraxfs_dma_client *eth[2] = {NULL, NULL};
int kernel_size;
int i;
ram_addr_t phys_ram;
ram_addr_t phys_flash;
ram_addr_t phys_intmem;
/* 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);
/* allocate RAM */
phys_ram = qemu_ram_alloc(ram_size);
cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
/* Unached mapping. */
cpu_register_physical_memory(0xc0000000, ram_size, phys_ram | IO_MEM_RAM);
/* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
internal memory. Cached and uncached mappings. */
phys_intmem = qemu_ram_alloc(INTMEM_SIZE);
cpu_register_physical_memory(0xb8000000, INTMEM_SIZE,
phys_intmem | IO_MEM_RAM);
cpu_register_physical_memory(0x38000000, INTMEM_SIZE,
phys_intmem | IO_MEM_RAM);
phys_flash = qemu_ram_alloc(FLASH_SIZE);
i = drive_get_index(IF_PFLASH, 0, 0);
pflash_cfi02_register(0x80000000, phys_flash,
drives_table[i].bdrv, (64 * 1024),
FLASH_SIZE >> 16,
1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
0x555, 0x2aa);
pflash_cfi02_register(0x0, phys_flash,
drives_table[i].bdrv, (64 * 1024),
FLASH_SIZE >> 16,
1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
0x555, 0x2aa);
pic = etraxfs_pic_init(env, 0xb001c000);
etraxfs_dmac = etraxfs_dmac_init(env, 0xb0000000, 10);
for (i = 0; i < 10; i++) {
/* On ETRAX, odd numbered channels are inputs. */
etraxfs_dmac_connect(etraxfs_dmac, i, pic + 7 + i, i & 1);
}
/* Add the two ethernet blocks. */
eth[0] = etraxfs_eth_init(&nd_table[0], env, pic + 25, 0xb0034000);
if (nb_nics > 1)
eth[1] = etraxfs_eth_init(&nd_table[1], env, pic + 26, 0xb0036000);
/* The DMA Connector block is missing, hardwire things for now. */
etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]);
etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1);
if (eth[1]) {
etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]);
etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1);
}
/* 2 timers. */
etraxfs_timer_init(env, pic + 0x1b, 0xb001e000);
etraxfs_timer_init(env, pic + 0x1b, 0xb005e000);
for (i = 0; i < 4; i++) {
if (serial_hds[i]) {
etraxfs_ser_init(env, pic + 0x14 + i,
serial_hds[i], 0xb0026000 + i * 0x2000);
}
}
if (kernel_filename) {
#if 1
/* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
devboard SDK. */
kernel_size = load_elf(kernel_filename, 0,
&bootstrap_pc, NULL, NULL);
#else
/* Takes a kimage from the axis devboard SDK. */
kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);
bootstrap_pc = 0x40004000;
/* magic for boot. */
env->regs[8] = 0x56902387;
env->regs[9] = 0x40004000 + kernel_size;
#endif
}
env->pc = bootstrap_pc;
printf ("pc =%x\n", env->pc);
printf ("ram size =%ld\n", ram_size);
}
void DMA_run(void)
{
etraxfs_dmac_run(etraxfs_dmac);
}
QEMUMachine bareetraxfs_machine = {
"bareetraxfs",
"Bare ETRAX FS board",
bareetraxfs_init,
0x8000000,
};
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