#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"
-extern FILE *logfile;
+#include "etraxfs.h"
+
+#define FLASH_SIZE 0x2000000
+#define INTMEM_SIZE (128 * 1024)
+
+static uint32_t bootstrap_pc;
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);
+ env->pc = bootstrap_pc;
}
static
-void bareetraxfs_init (int ram_size, int vga_ram_size, const char *boot_device,
- DisplayState *ds, const char **fd_filename, int snapshot,
+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 *irqs;
+ struct etraxfs_pic *pic;
+ void *etraxfs_dmac;
+ struct etraxfs_dma_client *eth[2] = {NULL, NULL};
int kernel_size;
- int internal_regs;
+ 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);
- 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");
+ phys_ram = qemu_ram_alloc(ram_size);
+ cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
+
+ /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
+ internal memory. */
+ phys_intmem = qemu_ram_alloc(INTMEM_SIZE);
+ 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(0x0, phys_flash,
+ i != -1 ? drives_table[i].bdrv : NULL, (64 * 1024),
+ FLASH_SIZE >> 16,
+ 1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
+ 0x555, 0x2aa);
+ pic = etraxfs_pic_init(env, 0x3001c000);
+ etraxfs_dmac = etraxfs_dmac_init(env, 0x30000000, 10);
+ for (i = 0; i < 10; i++) {
+ /* On ETRAX, odd numbered channels are inputs. */
+ etraxfs_dmac_connect(etraxfs_dmac, i, pic->irq + 7 + i, i & 1);
}
- 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);
-}
+ /* Add the two ethernet blocks. */
+ eth[0] = etraxfs_eth_init(&nd_table[0], env, pic->irq + 25, 0x30034000);
+ if (nb_nics > 1)
+ eth[1] = etraxfs_eth_init(&nd_table[1], env, pic->irq + 26, 0x30036000);
+
+ /* 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);
+ }
-void DMA_run(void)
-{
-}
+ /* 2 timers. */
+ etraxfs_timer_init(env, pic->irq + 0x1b, pic->nmi + 1, 0x3001e000);
+ etraxfs_timer_init(env, pic->irq + 0x1b, pic->nmi + 1, 0x3005e000);
-void pic_info()
-{
-}
+ for (i = 0; i < 4; i++) {
+ if (serial_hds[i]) {
+ etraxfs_ser_init(env, pic->irq + 0x14 + i,
+ serial_hds[i], 0x30026000 + i * 0x2000);
+ }
+ }
-void irq_info()
-{
+ if (kernel_filename) {
+ uint64_t entry, high;
+ int kcmdline_len;
+
+ /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
+ devboard SDK. */
+ kernel_size = load_elf(kernel_filename, -0x80000000LL,
+ &entry, NULL, &high);
+ bootstrap_pc = entry;
+ if (kernel_size < 0) {
+ /* Takes a kimage from the axis devboard SDK. */
+ kernel_size = load_image(kernel_filename, phys_ram_base + 0x4000);
+ bootstrap_pc = 0x40004000;
+ env->regs[9] = 0x40004000 + kernel_size;
+ }
+ env->regs[8] = 0x56902387; /* RAM init magic. */
+
+ if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
+ if (kcmdline_len > 256) {
+ fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
+ exit(1);
+ }
+ pstrcpy_targphys(high, 256, kernel_cmdline);
+ /* Let the kernel know we are modifying the cmdline. */
+ env->regs[10] = 0x87109563;
+ env->regs[11] = high;
+ }
+ }
+ env->pc = bootstrap_pc;
+
+ printf ("pc =%x\n", env->pc);
+ printf ("ram size =%ld\n", ram_size);
}
QEMUMachine bareetraxfs_machine = {
- "bareetraxfs",
- "Bare ETRAX FS board",
- bareetraxfs_init,
+ .name = "bareetraxfs",
+ .desc = "Bare ETRAX FS board",
+ .init = bareetraxfs_init,
+ .ram_require = 0x8000000,
};
projects / qemu.git / blobdiff