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-rw-r--r--hw/etraxfs.c178
1 files changed, 178 insertions, 0 deletions
diff --git a/hw/etraxfs.c b/hw/etraxfs.c
new file mode 100644
index 0000000000..cf0f38493c
--- /dev/null
+++ b/hw/etraxfs.c
@@ -0,0 +1,178 @@
+/*
+ * 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, int 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();
+/* 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,
+};