Quick fixes to get the ppc system model to boot a 603e based
kernel.

Index: qemu-0.13.0/hw/m48t59.c
===================================================================
--- qemu-0.13.0.orig/hw/m48t59.c	2010-10-16 04:56:09.000000000 +0800
+++ qemu-0.13.0/hw/m48t59.c	2011-01-17 16:40:09.000000000 +0800
@@ -50,6 +50,7 @@
  */
 
 struct M48t59State {
+    SysBusDevice busdev;
     /* Model parameters */
     uint32_t type; // 2 = m48t02, 8 = m48t08, 59 = m48t59
     /* Hardware parameters */
@@ -74,11 +75,6 @@
     M48t59State state;
 } M48t59ISAState;
 
-typedef struct M48t59SysBusState {
-    SysBusDevice busdev;
-    M48t59State state;
-} M48t59SysBusState;
-
 /* Fake timer functions */
 
 /* Alarm management */
@@ -629,8 +625,7 @@
 
 static void m48t59_reset_sysbus(DeviceState *d)
 {
-    M48t59SysBusState *sys = container_of(d, M48t59SysBusState, busdev.qdev);
-    M48t59State *NVRAM = &sys->state;
+    M48t59State *NVRAM = container_of(d, M48t59State, busdev.qdev);
 
     m48t59_reset_common(NVRAM);
 }
@@ -641,7 +636,7 @@
 {
     DeviceState *dev;
     SysBusDevice *s;
-    M48t59SysBusState *d;
+    M48t59State *d;
 
     dev = qdev_create(NULL, "m48t59");
     qdev_prop_set_uint32(dev, "type", type);
@@ -658,9 +653,9 @@
         sysbus_mmio_map(s, 0, mem_base);
     }
 
-    d = FROM_SYSBUS(M48t59SysBusState, s);
+    d = FROM_SYSBUS(M48t59State, s);
 
-    return &d->state;
+    return d;
 }
 
 M48t59State *m48t59_init_isa(uint32_t io_base, uint16_t size, int type)
@@ -710,8 +705,7 @@
 
 static int m48t59_init1(SysBusDevice *dev)
 {
-    M48t59SysBusState *d = FROM_SYSBUS(M48t59SysBusState, dev);
-    M48t59State *s = &d->state;
+    M48t59State *s = FROM_SYSBUS(M48t59State, dev);
     int mem_index;
 
     sysbus_init_irq(dev, &s->IRQ);
@@ -740,12 +734,12 @@
 static SysBusDeviceInfo m48t59_info = {
     .init = m48t59_init1,
     .qdev.name  = "m48t59",
-    .qdev.size = sizeof(M48t59SysBusState),
+    .qdev.size  = sizeof(M48t59State),
     .qdev.reset = m48t59_reset_sysbus,
     .qdev.props = (Property[]) {
-        DEFINE_PROP_UINT32("size",    M48t59SysBusState, state.size,    -1),
-        DEFINE_PROP_UINT32("type",    M48t59SysBusState, state.type,    -1),
-        DEFINE_PROP_HEX32( "io_base", M48t59SysBusState, state.io_base,  0),
+        DEFINE_PROP_UINT32("size",    M48t59State, size,    -1),
+        DEFINE_PROP_UINT32("type",    M48t59State, type,    -1),
+        DEFINE_PROP_HEX32( "io_base", M48t59State, io_base,  0),
         DEFINE_PROP_END_OF_LIST(),
     }
 };
Index: qemu-0.13.0/hw/ppc_prep.c
===================================================================
--- qemu-0.13.0.orig/hw/ppc_prep.c	2010-10-16 04:56:09.000000000 +0800
+++ qemu-0.13.0/hw/ppc_prep.c	2011-01-15 18:29:25.000000000 +0800
@@ -74,7 +74,7 @@
 /* Constants for devices init */
 static const int ide_iobase[2] = { 0x1f0, 0x170 };
 static const int ide_iobase2[2] = { 0x3f6, 0x376 };
-static const int ide_irq[2] = { 13, 13 };
+static const int ide_irq[2] = { 13, 14 };
 
 #define NE2000_NB_MAX 6
 
@@ -631,9 +631,6 @@
     if (filename) {
         qemu_free(filename);
     }
-    if (env->nip < 0xFFF80000 && bios_size < 0x00100000) {
-        hw_error("PowerPC 601 / 620 / 970 need a 1MB BIOS\n");
-    }
 
     if (linux_boot) {
         kernel_base = KERNEL_LOAD_ADDR;