EtraxFS board support, by Edgar E. Iglesias.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3364 c046a42c-6fe2-441c-8c8c-71466251a162

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,
+};