* sort the PowerPC target object files

* make PowerPC NVRAM accessors generic to be able to use a MacIO NVRAM
  instead of the M48T59 one
* split PowerMac targets code:
 - move all PowerMac related definitions and prototypes into hw/ppc_mac.h
 - add hw/mac_dbdma.c, hw/mac_nvram.c and macio.c
   which implements shared PowerMac devices
 - define the g3bw machine in a new hw/ppc_oldworld.c file
* Fix the g3bw target:
 - fix the Grackle host PCI device
 - connect the Heathrow PIC to the PowerPC 6xx bus pins


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3475 c046a42c-6fe2-441c-8c8c-71466251a162

11 files changed, 876 insertions, 482 deletions

diff --git a/hw/cuda.c b/hw/cuda.c
index 9a05aeb..42e357e 100644
--- a/hw/cuda.c
+++ b/hw/cuda.c
@@ -1,7 +1,8 @@
 /*
- * QEMU CUDA support
+ * QEMU PowerMac CUDA device support
  *
- * Copyright (c) 2004 Fabrice Bellard
+ * Copyright (c) 2004-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,6 +23,7 @@
  * THE SOFTWARE.
  */
 #include "vl.h"
+#include "ppc_mac.h"
 
 /* XXX: implement all timer modes */
 
@@ -634,10 +636,9 @@ static CPUReadMemoryFunc *cuda_read[] = {
     &cuda_readl,
 };
 
-int cuda_init(qemu_irq irq)
+void cuda_init (int *cuda_mem_index, qemu_irq irq)
 {
     CUDAState *s = &cuda_state;
-    int cuda_mem_index;
 
     s->irq = irq;
 
@@ -653,6 +654,5 @@ int cuda_init(qemu_irq irq)
     set_counter(s, &s->timers[1], 0xffff);
 
     s->adb_poll_timer = qemu_new_timer(vm_clock, cuda_adb_poll, s);
-    cuda_mem_index = cpu_register_io_memory(0, cuda_read, cuda_write, s);
-    return cuda_mem_index;
+    *cuda_mem_index = cpu_register_io_memory(0, cuda_read, cuda_write, s);
 }
diff --git a/hw/grackle_pci.c b/hw/grackle_pci.c
index fb46051..85c434c 100644
--- a/hw/grackle_pci.c
+++ b/hw/grackle_pci.c
@@ -1,7 +1,8 @@
 /*
- * QEMU Grackle (heathrow PPC) PCI host
+ * QEMU Grackle PCI host (heathrow OldWorld PowerMac)
  *
- * Copyright (c) 2006 Fabrice Bellard
+ * Copyright (c) 2006-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -23,6 +24,7 @@
  */
 
 #include "vl.h"
+#include "ppc_mac.h"
 typedef target_phys_addr_t pci_addr_t;
 #include "pci_host.h"
 
@@ -82,7 +84,7 @@ static int pci_grackle_map_irq(PCIDevice *pci_dev, int irq_num)
 
 static void pci_grackle_set_irq(qemu_irq *pic, int irq_num, int level)
 {
-    qemu_set_irq(pic[irq_num + 8], level);
+    qemu_set_irq(pic[irq_num + 0x15], level);
 }
 
 PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
@@ -93,7 +95,7 @@ PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic)
 
     s = qemu_mallocz(sizeof(GrackleState));
     s->bus = pci_register_bus(pci_grackle_set_irq, pci_grackle_map_irq,
-                              pic, 0, 0);
+                              pic, 0, 4);
 
     pci_mem_config = cpu_register_io_memory(0, pci_grackle_config_read,
                                             pci_grackle_config_write, s);
diff --git a/hw/heathrow_pic.c b/hw/heathrow_pic.c
index 96eb656..44dc97a 100644
--- a/hw/heathrow_pic.c
+++ b/hw/heathrow_pic.c
@@ -1,7 +1,8 @@
 /*
- * Heathrow PIC support (standard PowerMac PIC)
+ * Heathrow PIC support (OldWorld PowerMac)
  *
- * Copyright (c) 2005 Fabrice Bellard
+ * Copyright (c) 2005-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,6 +23,7 @@
  * THE SOFTWARE.
  */
 #include "vl.h"
+#include "ppc_mac.h"
 
 //#define DEBUG
 
@@ -34,6 +36,7 @@ typedef struct HeathrowPIC {
 
 typedef struct HeathrowPICS {
     HeathrowPIC pics[2];
+    qemu_irq *irqs;
 } HeathrowPICS;
 
 static inline int check_irq(HeathrowPIC *pic)
@@ -45,9 +48,9 @@ static inline int check_irq(HeathrowPIC *pic)
 static void heathrow_pic_update(HeathrowPICS *s)
 {
     if (check_irq(&s->pics[0]) || check_irq(&s->pics[1])) {
-        cpu_interrupt(first_cpu, CPU_INTERRUPT_HARD);
+        qemu_irq_raise(s->irqs[0]);
     } else {
-        cpu_reset_interrupt(first_cpu, CPU_INTERRUPT_HARD);
+        qemu_irq_lower(s->irqs[0]);
     }
 }
 
@@ -57,12 +60,13 @@ static void pic_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
     HeathrowPIC *pic;
     unsigned int n;
 
+#ifdef TARGET_WORDS_BIGENDIAN
     value = bswap32(value);
-#ifdef DEBUG
-    printf("pic_writel: %08x: %08x\n",
-           addr, value);
 #endif
     n = ((addr & 0xfff) - 0x10) >> 4;
+#ifdef DEBUG
+    printf("pic_writel: " PADDRX " %u: %08x\n", addr, n, value);
+#endif
     if (n >= 2)
         return;
     pic = &s->pics[n];
@@ -110,10 +114,11 @@ static uint32_t pic_readl (void *opaque, target_phys_addr_t addr)
         }
     }
 #ifdef DEBUG
-    printf("pic_readl: %08x: %08x\n",
-           addr, value);
+    printf("pic_readl: " PADDRX " %u: %08x\n", addr, n, value);
 #endif
+#ifdef TARGET_WORDS_BIGENDIAN
     value = bswap32(value);
+#endif
     return value;
 }
 
@@ -156,13 +161,17 @@ static void heathrow_pic_set_irq(void *opaque, int num, int level)
     heathrow_pic_update(s);
 }
 
-qemu_irq *heathrow_pic_init(int *pmem_index)
+qemu_irq *heathrow_pic_init(int *pmem_index,
+                            int nb_cpus, qemu_irq **irqs)
 {
     HeathrowPICS *s;
 
     s = qemu_mallocz(sizeof(HeathrowPICS));
     s->pics[0].level_triggered = 0;
     s->pics[1].level_triggered = 0x1ff00000;
+    /* only 1 CPU */
+    s->irqs = irqs[0];
     *pmem_index = cpu_register_io_memory(0, pic_read, pic_write, s);
+
     return qemu_allocate_irqs(heathrow_pic_set_irq, s, 64);
 }
diff --git a/hw/mac_dbdma.c b/hw/mac_dbdma.c
new file mode 100644
index 0000000..62c9746
--- /dev/null
+++ b/hw/mac_dbdma.c
@@ -0,0 +1,79 @@
+/*
+ * PowerMac descriptor-based DMA emulation
+ *
+ * Copyright (c) 2005-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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 "vl.h"
+#include "ppc_mac.h"
+
+/* DBDMA: currently no op - should suffice right now */
+
+static void dbdma_writeb (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+    printf("%s: 0x" PADDRX " <= 0x%08x\n", __func__, addr, value);
+}
+
+static void dbdma_writew (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+}
+
+static void dbdma_writel (void *opaque,
+                          target_phys_addr_t addr, uint32_t value)
+{
+}
+
+static uint32_t dbdma_readb (void *opaque, target_phys_addr_t addr)
+{
+    printf("%s: 0x" PADDRX " => 0x00000000\n", __func__, addr);
+
+    return 0;
+}
+
+static uint32_t dbdma_readw (void *opaque, target_phys_addr_t addr)
+{
+    return 0;
+}
+
+static uint32_t dbdma_readl (void *opaque, target_phys_addr_t addr)
+{
+    return 0;
+}
+
+static CPUWriteMemoryFunc *dbdma_write[] = {
+    &dbdma_writeb,
+    &dbdma_writew,
+    &dbdma_writel,
+};
+
+static CPUReadMemoryFunc *dbdma_read[] = {
+    &dbdma_readb,
+    &dbdma_readw,
+    &dbdma_readl,
+};
+
+void dbdma_init (int *dbdma_mem_index)
+{
+    *dbdma_mem_index = cpu_register_io_memory(0, dbdma_read, dbdma_write, NULL);
+}
+
diff --git a/hw/mac_nvram.c b/hw/mac_nvram.c
new file mode 100644
index 0000000..f8b8d37
--- /dev/null
+++ b/hw/mac_nvram.c
@@ -0,0 +1,123 @@
+/*
+ * PowerMac NVRAM emulation
+ *
+ * Copyright (c) 2005-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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 "vl.h"
+#include "ppc_mac.h"
+
+struct MacIONVRAMState {
+    uint8_t data[0x2000];
+};
+
+/* Direct access to NVRAM */
+uint32_t macio_nvram_read (void *opaque, uint32_t addr)
+{
+    MacIONVRAMState *s = opaque;
+    uint32_t ret;
+
+    //    printf("%s: %p addr %04x\n", __func__, s, addr);
+    if (addr < 0x2000)
+        ret = s->data[addr];
+    else
+        ret = -1;
+
+    return ret;
+}
+
+void macio_nvram_write (void *opaque, uint32_t addr, uint32_t val)
+{
+    MacIONVRAMState *s = opaque;
+
+    //    printf("%s: %p addr %04x val %02x\n", __func__, s, addr, val);
+    if (addr < 0x2000)
+        s->data[addr] = val;
+}
+
+/* macio style NVRAM device */
+static void macio_nvram_writeb (void *opaque,
+                                target_phys_addr_t addr, uint32_t value)
+{
+    MacIONVRAMState *s = opaque;
+    addr = (addr >> 4) & 0x1fff;
+    s->data[addr] = value;
+    //    printf("macio_nvram_writeb %04x = %02x\n", addr, value);
+}
+
+static uint32_t macio_nvram_readb (void *opaque, target_phys_addr_t addr)
+{
+    MacIONVRAMState *s = opaque;
+    uint32_t value;
+
+    addr = (addr >> 4) & 0x1fff;
+    value = s->data[addr];
+    //    printf("macio_nvram_readb %04x = %02x\n", addr, value);
+
+    return value;
+}
+
+static CPUWriteMemoryFunc *nvram_write[] = {
+    &macio_nvram_writeb,
+    &macio_nvram_writeb,
+    &macio_nvram_writeb,
+};
+
+static CPUReadMemoryFunc *nvram_read[] = {
+    &macio_nvram_readb,
+    &macio_nvram_readb,
+    &macio_nvram_readb,
+};
+
+MacIONVRAMState *macio_nvram_init (int *mem_index)
+{
+    MacIONVRAMState *s;
+    s = qemu_mallocz(sizeof(MacIONVRAMState));
+    if (!s)
+        return NULL;
+    *mem_index = cpu_register_io_memory(0, nvram_read, nvram_write, s);
+
+    return s;
+}
+
+static uint8_t nvram_chksum (const uint8_t *buf, int n)
+{
+    int sum, i;
+    sum = 0;
+    for(i = 0; i < n; i++)
+        sum += buf[i];
+    return (sum & 0xff) + (sum >> 8);
+}
+
+/* set a free Mac OS NVRAM partition */
+void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len)
+{
+    uint8_t *buf;
+    char partition_name[12] = "wwwwwwwwwwww";
+
+    buf = nvr->data;
+    buf[0] = 0x7f; /* free partition magic */
+    buf[1] = 0; /* checksum */
+    buf[2] = len >> 8;
+    buf[3] = len;
+    memcpy(buf + 4, partition_name, 12);
+    buf[1] = nvram_chksum(buf, 16);
+}
diff --git a/hw/macio.c b/hw/macio.c
new file mode 100644
index 0000000..82e3e9a
--- /dev/null
+++ b/hw/macio.c
@@ -0,0 +1,116 @@
+/*
+ * PowerMac MacIO device emulation
+ *
+ * Copyright (c) 2005-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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 "vl.h"
+#include "ppc_mac.h"
+
+typedef struct macio_state_t macio_state_t;
+struct macio_state_t {
+    int is_oldworld;
+    int pic_mem_index;
+    int dbdma_mem_index;
+    int cuda_mem_index;
+    int nvram_mem_index;
+    int nb_ide;
+    int ide_mem_index[4];
+};
+
+static void macio_map (PCIDevice *pci_dev, int region_num,
+                       uint32_t addr, uint32_t size, int type)
+{
+    macio_state_t *macio_state;
+    int i;
+
+    macio_state = (macio_state_t *)(pci_dev + 1);
+    if (macio_state->pic_mem_index >= 0) {
+        if (macio_state->is_oldworld) {
+            /* Heathrow PIC */
+            cpu_register_physical_memory(addr + 0x00000, 0x1000,
+                                         macio_state->pic_mem_index);
+        } else {
+            /* OpenPIC */
+            cpu_register_physical_memory(addr + 0x40000, 0x40000,
+                                         macio_state->pic_mem_index);
+        }
+    }
+    if (macio_state->dbdma_mem_index >= 0) {
+        cpu_register_physical_memory(addr + 0x08000, 0x1000,
+                                     macio_state->dbdma_mem_index);
+    }
+    if (macio_state->cuda_mem_index >= 0) {
+        cpu_register_physical_memory(addr + 0x16000, 0x2000,
+                                     macio_state->cuda_mem_index);
+    }
+    for (i = 0; i < macio_state->nb_ide; i++) {
+        if (macio_state->ide_mem_index[i] >= 0) {
+            cpu_register_physical_memory(addr + 0x1f000 + (i * 0x1000), 0x1000,
+                                         macio_state->ide_mem_index[i]);
+        }
+    }
+    if (macio_state->nvram_mem_index >= 0) {
+        cpu_register_physical_memory(addr + 0x60000, 0x20000,
+                                     macio_state->nvram_mem_index);
+    }
+}
+
+void macio_init (PCIBus *bus, int device_id, int is_oldworld, int pic_mem_index,
+                 int dbdma_mem_index, int cuda_mem_index, int nvram_mem_index,
+                 int nb_ide, int *ide_mem_index)
+{
+    PCIDevice *d;
+    macio_state_t *macio_state;
+    int i;
+
+    d = pci_register_device(bus, "macio",
+                            sizeof(PCIDevice) + sizeof(macio_state_t),
+                            -1, NULL, NULL);
+    macio_state = (macio_state_t *)(d + 1);
+    macio_state->is_oldworld = is_oldworld;
+    macio_state->pic_mem_index = pic_mem_index;
+    macio_state->dbdma_mem_index = dbdma_mem_index;
+    macio_state->cuda_mem_index = cuda_mem_index;
+    macio_state->nvram_mem_index = nvram_mem_index;
+    if (nb_ide > 4)
+        nb_ide = 4;
+    macio_state->nb_ide = nb_ide;
+    for (i = 0; i < nb_ide; i++)
+        macio_state->ide_mem_index[i] = ide_mem_index[i];
+    for (; i < 4; i++)
+        macio_state->ide_mem_index[i] = -1;
+    /* Note: this code is strongly inspirated from the corresponding code
+       in PearPC */
+    d->config[0x00] = 0x6b; // vendor_id
+    d->config[0x01] = 0x10;
+    d->config[0x02] = device_id;
+    d->config[0x03] = device_id >> 8;
+
+    d->config[0x0a] = 0x00; // class_sub = pci2pci
+    d->config[0x0b] = 0xff; // class_base = bridge
+    d->config[0x0e] = 0x00; // header_type
+
+    d->config[0x3d] = 0x01; // interrupt on pin 1
+
+    pci_register_io_region(d, 0, 0x80000,
+                           PCI_ADDRESS_SPACE_MEM, macio_map);
+}
diff --git a/hw/ppc.c b/hw/ppc.c
index 742d3de..8b66907 100644
--- a/hw/ppc.c
+++ b/hw/ppc.c
@@ -22,7 +22,6 @@
  * THE SOFTWARE.
  */
 #include "vl.h"
-#include "m48t59.h"
 
 //#define PPC_DEBUG_IRQ
 //#define PPC_DEBUG_TB
@@ -1240,63 +1239,75 @@ void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val)
 
 /*****************************************************************************/
 /* NVRAM helpers */
-void NVRAM_set_byte (m48t59_t *nvram, uint32_t addr, uint8_t value)
+static inline uint32_t nvram_read (nvram_t *nvram, uint32_t addr)
 {
-    m48t59_write(nvram, addr, value);
+    return (*nvram->read_fn)(nvram->opaque, addr);;
 }
 
-uint8_t NVRAM_get_byte (m48t59_t *nvram, uint32_t addr)
+static inline void nvram_write (nvram_t *nvram, uint32_t addr, uint32_t val)
 {
-    return m48t59_read(nvram, addr);
+    (*nvram->write_fn)(nvram->opaque, addr, val);
 }
 
-void NVRAM_set_word (m48t59_t *nvram, uint32_t addr, uint16_t value)
+void NVRAM_set_byte (nvram_t *nvram, uint32_t addr, uint8_t value)
 {
-    m48t59_write(nvram, addr, value >> 8);
-    m48t59_write(nvram, addr + 1, value & 0xFF);
+    nvram_write(nvram, addr, value);
 }
 
-uint16_t NVRAM_get_word (m48t59_t *nvram, uint32_t addr)
+uint8_t NVRAM_get_byte (nvram_t *nvram, uint32_t addr)
+{
+    return nvram_read(nvram, addr);
+}
+
+void NVRAM_set_word (nvram_t *nvram, uint32_t addr, uint16_t value)
+{
+    nvram_write(nvram, addr, value >> 8);
+    nvram_write(nvram, addr + 1, value & 0xFF);
+}
+
+uint16_t NVRAM_get_word (nvram_t *nvram, uint32_t addr)
 {
     uint16_t tmp;
 
-    tmp = m48t59_read(nvram, addr) << 8;
-    tmp |= m48t59_read(nvram, addr + 1);
+    tmp = nvram_read(nvram, addr) << 8;
+    tmp |= nvram_read(nvram, addr + 1);
+
     return tmp;
 }
 
-void NVRAM_set_lword (m48t59_t *nvram, uint32_t addr, uint32_t value)
+void NVRAM_set_lword (nvram_t *nvram, uint32_t addr, uint32_t value)
 {
-    m48t59_write(nvram, addr, value >> 24);
-    m48t59_write(nvram, addr + 1, (value >> 16) & 0xFF);
-    m48t59_write(nvram, addr + 2, (value >> 8) & 0xFF);
-    m48t59_write(nvram, addr + 3, value & 0xFF);
+    nvram_write(nvram, addr, value >> 24);
+    nvram_write(nvram, addr + 1, (value >> 16) & 0xFF);
+    nvram_write(nvram, addr + 2, (value >> 8) & 0xFF);
+    nvram_write(nvram, addr + 3, value & 0xFF);
 }
 
-uint32_t NVRAM_get_lword (m48t59_t *nvram, uint32_t addr)
+uint32_t NVRAM_get_lword (nvram_t *nvram, uint32_t addr)
 {
     uint32_t tmp;
 
-    tmp = m48t59_read(nvram, addr) << 24;
-    tmp |= m48t59_read(nvram, addr + 1) << 16;
-    tmp |= m48t59_read(nvram, addr + 2) << 8;
-    tmp |= m48t59_read(nvram, addr + 3);
+    tmp = nvram_read(nvram, addr) << 24;
+    tmp |= nvram_read(nvram, addr + 1) << 16;
+    tmp |= nvram_read(nvram, addr + 2) << 8;
+    tmp |= nvram_read(nvram, addr + 3);
 
     return tmp;
 }
 
-void NVRAM_set_string (m48t59_t *nvram, uint32_t addr,
+void NVRAM_set_string (nvram_t *nvram, uint32_t addr,
                        const unsigned char *str, uint32_t max)
 {
     int i;
 
     for (i = 0; i < max && str[i] != '\0'; i++) {
-        m48t59_write(nvram, addr + i, str[i]);
+        nvram_write(nvram, addr + i, str[i]);
     }
-    m48t59_write(nvram, addr + max - 1, '\0');
+    nvram_write(nvram, addr + i, str[i]);
+    nvram_write(nvram, addr + max - 1, '\0');
 }
 
-int NVRAM_get_string (m48t59_t *nvram, uint8_t *dst, uint16_t addr, int max)
+int NVRAM_get_string (nvram_t *nvram, uint8_t *dst, uint16_t addr, int max)
 {
     int i;
 
@@ -1325,7 +1336,7 @@ static uint16_t NVRAM_crc_update (uint16_t prev, uint16_t value)
     return tmp;
 }
 
-uint16_t NVRAM_compute_crc (m48t59_t *nvram, uint32_t start, uint32_t count)
+uint16_t NVRAM_compute_crc (nvram_t *nvram, uint32_t start, uint32_t count)
 {
     uint32_t i;
     uint16_t crc = 0xFFFF;
@@ -1345,7 +1356,7 @@ uint16_t NVRAM_compute_crc (m48t59_t *nvram, uint32_t start, uint32_t count)
 
 #define CMDLINE_ADDR 0x017ff000
 
-int PPC_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
+int PPC_NVRAM_set_params (nvram_t *nvram, uint16_t NVRAM_size,
                           const unsigned char *arch,
                           uint32_t RAM_size, int boot_device,
                           uint32_t kernel_image, uint32_t kernel_size,
@@ -1382,7 +1393,7 @@ int PPC_NVRAM_set_params (m48t59_t *nvram, uint16_t NVRAM_size,
     NVRAM_set_word(nvram,   0x56, height);
     NVRAM_set_word(nvram,   0x58, depth);
     crc = NVRAM_compute_crc(nvram, 0x00, 0xF8);
-    NVRAM_set_word(nvram,  0xFC, crc);
+    NVRAM_set_word(nvram,   0xFC, crc);
 
     return 0;
 }
diff --git a/hw/ppc_chrp.c b/hw/ppc_chrp.c
index f53c85b..f71169e 100644
--- a/hw/ppc_chrp.c
+++ b/hw/ppc_chrp.c
@@ -1,7 +1,8 @@
 /*
- * QEMU PPC CHRP/PMAC hardware System Emulator
+ * QEMU PowerPC CHRP (currently NewWorld PowerMac) hardware System Emulator
  *
  * Copyright (c) 2004-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -22,171 +23,7 @@
  * THE SOFTWARE.
  */
 #include "vl.h"
-
-/* SMP is not enabled, for now */
-#define MAX_CPUS 1
-
-#define BIOS_FILENAME "ppc_rom.bin"
-#define VGABIOS_FILENAME "video.x"
-#define NVRAM_SIZE        0x2000
-
-#define KERNEL_LOAD_ADDR 0x01000000
-#define INITRD_LOAD_ADDR 0x01800000
-
-/* MacIO devices (mapped inside the MacIO address space): CUDA, DBDMA,
-   NVRAM */
-
-static int dbdma_mem_index;
-static int cuda_mem_index;
-static int ide0_mem_index = -1;
-static int ide1_mem_index = -1;
-static int openpic_mem_index = -1;
-static int heathrow_pic_mem_index = -1;
-static int macio_nvram_mem_index = -1;
-
-/* DBDMA: currently no op - should suffice right now */
-
-static void dbdma_writeb (void *opaque,
-                          target_phys_addr_t addr, uint32_t value)
-{
-    printf("%s: 0x" PADDRX " <= 0x%08x\n", __func__, addr, value);
-}
-
-static void dbdma_writew (void *opaque,
-                          target_phys_addr_t addr, uint32_t value)
-{
-}
-
-static void dbdma_writel (void *opaque,
-                          target_phys_addr_t addr, uint32_t value)
-{
-}
-
-static uint32_t dbdma_readb (void *opaque, target_phys_addr_t addr)
-{
-    printf("%s: 0x" PADDRX " => 0x00000000\n", __func__, addr);
-
-    return 0;
-}
-
-static uint32_t dbdma_readw (void *opaque, target_phys_addr_t addr)
-{
-    return 0;
-}
-
-static uint32_t dbdma_readl (void *opaque, target_phys_addr_t addr)
-{
-    return 0;
-}
-
-static CPUWriteMemoryFunc *dbdma_write[] = {
-    &dbdma_writeb,
-    &dbdma_writew,
-    &dbdma_writel,
-};
-
-static CPUReadMemoryFunc *dbdma_read[] = {
-    &dbdma_readb,
-    &dbdma_readw,
-    &dbdma_readl,
-};
-
-/* macio style NVRAM device */
-typedef struct MacIONVRAMState {
-    uint8_t data[0x2000];
-} MacIONVRAMState;
-
-static void macio_nvram_writeb (void *opaque,
-                                target_phys_addr_t addr, uint32_t value)
-{
-    MacIONVRAMState *s = opaque;
-    addr = (addr >> 4) & 0x1fff;
-    s->data[addr] = value;
-    //    printf("macio_nvram_writeb %04x = %02x\n", addr, value);
-}
-
-static uint32_t macio_nvram_readb (void *opaque, target_phys_addr_t addr)
-{
-    MacIONVRAMState *s = opaque;
-    uint32_t value;
-
-    addr = (addr >> 4) & 0x1fff;
-    value = s->data[addr];
-    //    printf("macio_nvram_readb %04x = %02x\n", addr, value);
-
-    return value;
-}
-
-static CPUWriteMemoryFunc *macio_nvram_write[] = {
-    &macio_nvram_writeb,
-    &macio_nvram_writeb,
-    &macio_nvram_writeb,
-};
-
-static CPUReadMemoryFunc *macio_nvram_read[] = {
-    &macio_nvram_readb,
-    &macio_nvram_readb,
-    &macio_nvram_readb,
-};
-
-static MacIONVRAMState *macio_nvram_init (void)
-{
-    MacIONVRAMState *s;
-    s = qemu_mallocz(sizeof(MacIONVRAMState));
-    if (!s)
-        return NULL;
-    macio_nvram_mem_index = cpu_register_io_memory(0, macio_nvram_read,
-                                                   macio_nvram_write, s);
-
-    return s;
-}
-
-static void macio_map (PCIDevice *pci_dev, int region_num,
-                       uint32_t addr, uint32_t size, int type)
-{
-    if (heathrow_pic_mem_index >= 0) {
-        cpu_register_physical_memory(addr + 0x00000, 0x1000,
-                                     heathrow_pic_mem_index);
-    }
-    cpu_register_physical_memory(addr + 0x08000, 0x1000, dbdma_mem_index);
-    cpu_register_physical_memory(addr + 0x16000, 0x2000, cuda_mem_index);
-    if (ide0_mem_index >= 0)
-        cpu_register_physical_memory(addr + 0x1f000, 0x1000, ide0_mem_index);
-    if (ide1_mem_index >= 0)
-        cpu_register_physical_memory(addr + 0x20000, 0x1000, ide1_mem_index);
-    if (openpic_mem_index >= 0) {
-        cpu_register_physical_memory(addr + 0x40000, 0x40000,
-                                     openpic_mem_index);
-    }
-    if (macio_nvram_mem_index >= 0)
-        cpu_register_physical_memory(addr + 0x60000, 0x20000,
-                                     macio_nvram_mem_index);
-}
-
-static void macio_init (PCIBus *bus, int device_id)
-{
-    PCIDevice *d;
-
-    d = pci_register_device(bus, "macio", sizeof(PCIDevice),
-                            -1, NULL, NULL);
-    /* Note: this code is strongly inspirated from the corresponding code
-       in PearPC */
-    d->config[0x00] = 0x6b; // vendor_id
-    d->config[0x01] = 0x10;
-    d->config[0x02] = device_id;
-    d->config[0x03] = device_id >> 8;
-
-    d->config[0x0a] = 0x00; // class_sub = pci2pci
-    d->config[0x0b] = 0xff; // class_base = bridge
-    d->config[0x0e] = 0x00; // header_type
-
-    d->config[0x3d] = 0x01; // interrupt on pin 1
-
-    dbdma_mem_index = cpu_register_io_memory(0, dbdma_read, dbdma_write, NULL);
-
-    pci_register_io_region(d, 0, 0x80000,
-                           PCI_ADDRESS_SPACE_MEM, macio_map);
-}
+#include "ppc_mac.h"
 
 /* UniN device */
 static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
@@ -210,118 +47,34 @@ static CPUReadMemoryFunc *unin_read[] = {
     &unin_readl,
 };
 
-/* temporary frame buffer OSI calls for the video.x driver. The right
-   solution is to modify the driver to use VGA PCI I/Os */
-/* XXX: to be removed. This is no way related to emulation */
-static int vga_osi_call (CPUState *env)
-{
-    static int vga_vbl_enabled;
-    int linesize;
-
-    //    printf("osi_call R5=%d\n", env->gpr[5]);
-
-    /* same handler as PearPC, coming from the original MOL video
-       driver. */
-    switch(env->gpr[5]) {
-    case 4:
-        break;
-    case 28: /* set_vmode */
-        if (env->gpr[6] != 1 || env->gpr[7] != 0)
-            env->gpr[3] = 1;
-        else
-            env->gpr[3] = 0;
-        break;
-    case 29: /* get_vmode_info */
-        if (env->gpr[6] != 0) {
-            if (env->gpr[6] != 1 || env->gpr[7] != 0) {
-                env->gpr[3] = 1;
-                break;
-            }
-        }
-        env->gpr[3] = 0;
-        env->gpr[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
-        env->gpr[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
-        env->gpr[6] = (graphic_width << 16) | graphic_height; /* w, h */
-        env->gpr[7] = 85 << 16; /* refresh rate */
-        env->gpr[8] = (graphic_depth + 7) & ~7; /* depth (round to byte) */
-        linesize = ((graphic_depth + 7) >> 3) * graphic_width;
-        linesize = (linesize + 3) & ~3;
-        env->gpr[9] = (linesize << 16) | 0; /* row_bytes, offset */
-        break;
-    case 31: /* set_video power */
-        env->gpr[3] = 0;
-        break;
-    case 39: /* video_ctrl */
-        if (env->gpr[6] == 0 || env->gpr[6] == 1)
-            vga_vbl_enabled = env->gpr[6];
-        env->gpr[3] = 0;
-        break;
-    case 47:
-        break;
-    case 59: /* set_color */
-        /* R6 = index, R7 = RGB */
-        env->gpr[3] = 0;
-        break;
-    case 64: /* get color */
-        /* R6 = index */
-        env->gpr[3] = 0;
-        break;
-    case 116: /* set hwcursor */
-        /* R6 = x, R7 = y, R8 = visible, R9 = data */
-        break;
-    default:
-        fprintf(stderr, "unsupported OSI call R5=" REGX "\n", env->gpr[5]);
-        break;
-    }
-
-    return 1; /* osi_call handled */
-}
-
-static uint8_t nvram_chksum (const uint8_t *buf, int n)
-{
-    int sum, i;
-    sum = 0;
-    for(i = 0; i < n; i++)
-        sum += buf[i];
-    return (sum & 0xff) + (sum >> 8);
-}
-
-/* set a free Mac OS NVRAM partition */
-void pmac_format_nvram_partition (uint8_t *buf, int len)
-{
-    char partition_name[12] = "wwwwwwwwwwww";
-
-    buf[0] = 0x7f; /* free partition magic */
-    buf[1] = 0; /* checksum */
-    buf[2] = len >> 8;
-    buf[3] = len;
-    memcpy(buf + 4, partition_name, 12);
-    buf[1] = nvram_chksum(buf, 16);
-}
-
-/* PowerPC CHRP hardware initialisation */
-static void ppc_chrp_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,
-                           int is_heathrow)
+/* PowerPC Mac99 hardware initialisation */
+static void ppc_core99_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, *envs[MAX_CPUS];
     char buf[1024];
     qemu_irq *pic, **openpic_irqs;
-    m48t59_t *nvram;
     int unin_memory;
     int linux_boot, i;
     unsigned long bios_offset, vga_bios_offset;
     uint32_t kernel_base, kernel_size, initrd_base, initrd_size;
     ppc_def_t *def;
     PCIBus *pci_bus;
-    const char *arch_name;
+    nvram_t nvram;
+#if 0
+    MacIONVRAMState *nvr;
+    int nvram_mem_index;
+#endif
+    m48t59_t *m48t59;
     int vga_bios_size, bios_size;
     qemu_irq *dummy_irq;
+    int pic_mem_index, dbdma_mem_index, cuda_mem_index;
+    int ide_mem_index[2];
 
     linux_boot = (kernel_filename != NULL);
 
@@ -338,7 +91,9 @@ static void ppc_chrp_init (int ram_size, int vga_ram_size, int boot_device,
         cpu_ppc_reset(env);
         /* Set time-base frequency to 100 Mhz */
         cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
+#if 0
         env->osi_call = vga_osi_call;
+#endif
         qemu_register_reset(&cpu_ppc_reset, env);
         register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
         envs[i] = env;
@@ -413,143 +168,91 @@ static void ppc_chrp_init (int ram_size, int vga_ram_size, int boot_device,
         initrd_size = 0;
     }
 
-    if (is_heathrow) {
-        isa_mem_base = 0x80000000;
-
-        /* Register 2 MB of ISA IO space */
-        isa_mmio_init(0xfe000000, 0x00200000);
+    isa_mem_base = 0x80000000;
 
-        /* init basic PC hardware */
-        if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
-            cpu_abort(env, "Only 6xx bus is supported on heathrow machine\n");
-            exit(1);
-        }
-        pic = heathrow_pic_init(&heathrow_pic_mem_index);
-        pci_bus = pci_grackle_init(0xfec00000, pic);
-        pci_vga_init(pci_bus, ds, phys_ram_base + ram_size,
-                     ram_size, vga_ram_size,
-                     vga_bios_offset, vga_bios_size);
-
-        /* XXX: suppress that */
-        dummy_irq = i8259_init(NULL);
-
-        /* XXX: use Mac Serial port */
-        serial_init(0x3f8, dummy_irq[4], serial_hds[0]);
-
-        for(i = 0; i < nb_nics; i++) {
-            if (!nd_table[i].model)
-                nd_table[i].model = "ne2k_pci";
-            pci_nic_init(pci_bus, &nd_table[i], -1);
-        }
+    /* Register 8 MB of ISA IO space */
+    isa_mmio_init(0xf2000000, 0x00800000);
 
-        pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
-
-        /* cuda also initialize ADB */
-        cuda_mem_index = cuda_init(pic[0x12]);
-
-        adb_kbd_init(&adb_bus);
-        adb_mouse_init(&adb_bus);
-
-        {
-            MacIONVRAMState *nvr;
-            nvr = macio_nvram_init();
-            pmac_format_nvram_partition(nvr->data, 0x2000);
-        }
-
-        macio_init(pci_bus, 0x0017);
-
-        nvram = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59);
-
-        arch_name = "HEATHROW";
-    } else {
-        isa_mem_base = 0x80000000;
+    /* UniN init */
+    unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL);
+    cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory);
 
-        /* Register 8 MB of ISA IO space */
-        isa_mmio_init(0xf2000000, 0x00800000);
-
-        /* UniN init */
-        unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL);
-        cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory);
-
-        openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
-        openpic_irqs[0] =
-            qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
-        for (i = 0; i < smp_cpus; i++) {
-            /* Mac99 IRQ connection between OpenPIC outputs pins
-             * and PowerPC input pins
-             */
-            switch (PPC_INPUT(env)) {
-            case PPC_FLAGS_INPUT_6xx:
-                openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
-                openpic_irqs[i][OPENPIC_OUTPUT_INT] =
-                    ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
-                openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
-                    ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
-                openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
-                    ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP];
-                /* Not connected ? */
-                openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
-                /* Check this */
-                openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
-                    ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET];
-                break;
+    openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
+    openpic_irqs[0] =
+        qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
+    for (i = 0; i < smp_cpus; i++) {
+        /* Mac99 IRQ connection between OpenPIC outputs pins
+         * and PowerPC input pins
+         */
+        switch (PPC_INPUT(env)) {
+        case PPC_FLAGS_INPUT_6xx:
+            openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
+            openpic_irqs[i][OPENPIC_OUTPUT_INT] =
+                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
+            openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
+                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
+            openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
+                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP];
+            /* Not connected ? */
+            openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
+            /* Check this */
+            openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
+                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET];
+            break;
 #if defined(TARGET_PPC64)
-            case PPC_FLAGS_INPUT_970:
-                openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
-                openpic_irqs[i][OPENPIC_OUTPUT_INT] =
-                    ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
-                openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
-                    ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
-                openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
-                    ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP];
-                /* Not connected ? */
-                openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
-                /* Check this */
-                openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
-                    ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET];
-                break;
+        case PPC_FLAGS_INPUT_970:
+            openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
+            openpic_irqs[i][OPENPIC_OUTPUT_INT] =
+                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
+            openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
+                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
+            openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
+                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP];
+            /* Not connected ? */
+            openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
+            /* Check this */
+            openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
+                ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET];
+            break;
 #endif /* defined(TARGET_PPC64) */
-            default:
-                cpu_abort(env, "Bus model not supported on mac99 machine\n");
-                exit(1);
-            }
-        }
-        pic = openpic_init(NULL, &openpic_mem_index, smp_cpus,
-                           openpic_irqs, NULL);
-        pci_bus = pci_pmac_init(pic);
-        /* init basic PC hardware */
-        pci_vga_init(pci_bus, ds, phys_ram_base + ram_size,
-                     ram_size, vga_ram_size,
-                     vga_bios_offset, vga_bios_size);
-
-        /* XXX: suppress that */
-        dummy_irq = i8259_init(NULL);
-
-        /* XXX: use Mac Serial port */
-        serial_init(0x3f8, dummy_irq[4], serial_hds[0]);
-        for(i = 0; i < nb_nics; i++) {
-            if (!nd_table[i].model)
-                nd_table[i].model = "ne2k_pci";
-            pci_nic_init(pci_bus, &nd_table[i], -1);
+        default:
+            cpu_abort(env, "Bus model not supported on mac99 machine\n");
+            exit(1);
         }
+    }
+    pic = openpic_init(NULL, &pic_mem_index, smp_cpus, openpic_irqs, NULL);
+    pci_bus = pci_pmac_init(pic);
+    /* init basic PC hardware */
+    pci_vga_init(pci_bus, ds, phys_ram_base + ram_size,
+                 ram_size, vga_ram_size,
+                 vga_bios_offset, vga_bios_size);
+    
+    /* XXX: suppress that */
+    dummy_irq = i8259_init(NULL);
+
+    /* XXX: use Mac Serial port */
+    serial_init(0x3f8, dummy_irq[4], serial_hds[0]);
+    for(i = 0; i < nb_nics; i++) {
+        if (!nd_table[i].model)
+            nd_table[i].model = "ne2k_pci";
+        pci_nic_init(pci_bus, &nd_table[i], -1);
+    }
 #if 1
-        ide0_mem_index = pmac_ide_init(&bs_table[0], pic[0x13]);
-        ide1_mem_index = pmac_ide_init(&bs_table[2], pic[0x14]);
+    ide_mem_index[0] = pmac_ide_init(&bs_table[0], pic[0x13]);
+    ide_mem_index[1] = pmac_ide_init(&bs_table[2], pic[0x14]);
 #else
-        pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
+    pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
 #endif
-        /* cuda also initialize ADB */
-        cuda_mem_index = cuda_init(pic[0x19]);
-
-        adb_kbd_init(&adb_bus);
-        adb_mouse_init(&adb_bus);
-
-        macio_init(pci_bus, 0x0022);
+    /* cuda also initialize ADB */
+    cuda_init(&cuda_mem_index, pic[0x19]);
+    
+    adb_kbd_init(&adb_bus);
+    adb_mouse_init(&adb_bus);
 
-        nvram = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59);
+    dbdma_init(&dbdma_mem_index);
 
-        arch_name = "MAC99";
-    }
+    macio_init(pci_bus, 0x0022, 0, pic_mem_index, dbdma_mem_index,
+               cuda_mem_index, -1, 2, ide_mem_index);
 
     if (usb_enabled) {
         usb_ohci_init_pci(pci_bus, 3, -1);
@@ -557,8 +260,21 @@ static void ppc_chrp_init (int ram_size, int vga_ram_size, int boot_device,
 
     if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
         graphic_depth = 15;
-
-    PPC_NVRAM_set_params(nvram, NVRAM_SIZE, arch_name, ram_size, boot_device,
+#if 0 /* XXX: this is ugly but needed for now, or OHW won't boot */
+    /* The NewWorld NVRAM is not located in the MacIO device */
+    nvr = macio_nvram_init(&nvram_mem_index);
+    pmac_format_nvram_partition(nvr, 0x2000);
+    cpu_register_physical_memory(0xFFF04000, 0x20000, nvram_mem_index);
+    nvram.opaque = nvr;
+    nvram.read_fn = &macio_nvram_read;
+    nvram.write_fn = &macio_nvram_write;
+#else
+    m48t59 = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59);
+    nvram.opaque = m48t59;
+    nvram.read_fn = &m48t59_read;
+    nvram.write_fn = &m48t59_write;
+#endif
+    PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "MAC99", ram_size, boot_device,
                          kernel_base, kernel_size,
                          kernel_cmdline,
                          initrd_base, initrd_size,
@@ -569,44 +285,10 @@ static void ppc_chrp_init (int ram_size, int vga_ram_size, int boot_device,
 
     /* Special port to get debug messages from Open-Firmware */
     register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);
-}
-
-static void ppc_core99_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)
-{
-    ppc_chrp_init(ram_size, vga_ram_size, boot_device,
-                  ds, fd_filename, snapshot,
-                  kernel_filename, kernel_cmdline,
-                  initrd_filename, cpu_model, 0);
-}
-
-static void ppc_heathrow_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)
-{
-    ppc_chrp_init(ram_size, vga_ram_size, boot_device,
-                  ds, fd_filename, snapshot,
-                  kernel_filename, kernel_cmdline,
-                  initrd_filename, cpu_model, 1);
-}
+ }
 
 QEMUMachine core99_machine = {
     "mac99",
     "Mac99 based PowerMAC",
     ppc_core99_init,
 };
-
-QEMUMachine heathrow_machine = {
-    "g3bw",
-    "Heathrow based PowerMAC",
-    ppc_heathrow_init,
-};
diff --git a/hw/ppc_mac.h b/hw/ppc_mac.h
new file mode 100644
index 0000000..0ff80ab
--- /dev/null
+++ b/hw/ppc_mac.h
@@ -0,0 +1,70 @@
+/*
+ * QEMU PowerMac emulation shared definitions and prototypes
+ *
+ * Copyright (c) 2004-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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.
+ */
+#if !defined(__PPC_MAC_H__)
+#define __PPC_MAC_H__
+
+/* SMP is not enabled, for now */
+#define MAX_CPUS 1
+
+#define BIOS_FILENAME "ppc_rom.bin"
+#define VGABIOS_FILENAME "video.x"
+#define NVRAM_SIZE        0x2000
+
+#define KERNEL_LOAD_ADDR 0x01000000
+#define INITRD_LOAD_ADDR 0x01800000
+
+/* DBDMA */
+void dbdma_init (int *dbdma_mem_index);
+
+/* Cuda */
+void cuda_init (int *cuda_mem_index, qemu_irq irq);
+
+/* MacIO */
+void macio_init (PCIBus *bus, int device_id, int is_oldworld, int pic_mem_index,
+                 int dbdma_mem_index, int cuda_mem_index, int nvram_mem_index,
+                 int nb_ide, int *ide_mem_index);
+
+/* NewWorld PowerMac IDE */
+int pmac_ide_init (BlockDriverState **hd_table, qemu_irq irq);
+
+/* Heathrow PIC */
+qemu_irq *heathrow_pic_init(int *pmem_index,
+                            int nb_cpus, qemu_irq **irqs);
+
+/* Grackle PCI */
+PCIBus *pci_grackle_init(uint32_t base, qemu_irq *pic);
+
+/* UniNorth PCI */
+PCIBus *pci_pmac_init(qemu_irq *pic);
+
+/* Mac NVRAM */
+typedef struct MacIONVRAMState MacIONVRAMState;
+
+MacIONVRAMState *macio_nvram_init (int *mem_index);
+void pmac_format_nvram_partition (MacIONVRAMState *nvr, int len);
+uint32_t macio_nvram_read (void *opaque, uint32_t addr);
+void macio_nvram_write (void *opaque, uint32_t addr, uint32_t val);
+
+#endif /* !defined(__PPC_MAC_H__) */
diff --git a/hw/ppc_oldworld.c b/hw/ppc_oldworld.c
new file mode 100644
index 0000000..1c25344
--- /dev/null
+++ b/hw/ppc_oldworld.c
@@ -0,0 +1,298 @@
+/*
+ * QEMU OldWorld PowerMac (currently ~G3 B&W) hardware System Emulator
+ *
+ * Copyright (c) 2004-2007 Fabrice Bellard
+ * Copyright (c) 2007 Jocelyn Mayer
+ *
+ * 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 "vl.h"
+#include "ppc_mac.h"
+
+/* temporary frame buffer OSI calls for the video.x driver. The right
+   solution is to modify the driver to use VGA PCI I/Os */
+/* XXX: to be removed. This is no way related to emulation */
+static int vga_osi_call (CPUState *env)
+{
+    static int vga_vbl_enabled;
+    int linesize;
+
+    //    printf("osi_call R5=%d\n", env->gpr[5]);
+
+    /* same handler as PearPC, coming from the original MOL video
+       driver. */
+    switch(env->gpr[5]) {
+    case 4:
+        break;
+    case 28: /* set_vmode */
+        if (env->gpr[6] != 1 || env->gpr[7] != 0)
+            env->gpr[3] = 1;
+        else
+            env->gpr[3] = 0;
+        break;
+    case 29: /* get_vmode_info */
+        if (env->gpr[6] != 0) {
+            if (env->gpr[6] != 1 || env->gpr[7] != 0) {
+                env->gpr[3] = 1;
+                break;
+            }
+        }
+        env->gpr[3] = 0;
+        env->gpr[4] = (1 << 16) | 1; /* num_vmodes, cur_vmode */
+        env->gpr[5] = (1 << 16) | 0; /* num_depths, cur_depth_mode */
+        env->gpr[6] = (graphic_width << 16) | graphic_height; /* w, h */
+        env->gpr[7] = 85 << 16; /* refresh rate */
+        env->gpr[8] = (graphic_depth + 7) & ~7; /* depth (round to byte) */
+        linesize = ((graphic_depth + 7) >> 3) * graphic_width;
+        linesize = (linesize + 3) & ~3;
+        env->gpr[9] = (linesize << 16) | 0; /* row_bytes, offset */
+        break;
+    case 31: /* set_video power */
+        env->gpr[3] = 0;
+        break;
+    case 39: /* video_ctrl */
+        if (env->gpr[6] == 0 || env->gpr[6] == 1)
+            vga_vbl_enabled = env->gpr[6];
+        env->gpr[3] = 0;
+        break;
+    case 47:
+        break;
+    case 59: /* set_color */
+        /* R6 = index, R7 = RGB */
+        env->gpr[3] = 0;
+        break;
+    case 64: /* get color */
+        /* R6 = index */
+        env->gpr[3] = 0;
+        break;
+    case 116: /* set hwcursor */
+        /* R6 = x, R7 = y, R8 = visible, R9 = data */
+        break;
+    default:
+        fprintf(stderr, "unsupported OSI call R5=" REGX "\n", env->gpr[5]);
+        break;
+    }
+
+    return 1; /* osi_call handled */
+}
+
+static void ppc_heathrow_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, *envs[MAX_CPUS];
+    char buf[1024];
+    qemu_irq *pic, **heathrow_irqs;
+    nvram_t nvram;
+    m48t59_t *m48t59;
+    int linux_boot, i;
+    unsigned long bios_offset, vga_bios_offset;
+    uint32_t kernel_base, kernel_size, initrd_base, initrd_size;
+    ppc_def_t *def;
+    PCIBus *pci_bus;
+    MacIONVRAMState *nvr;
+    int vga_bios_size, bios_size;
+    qemu_irq *dummy_irq;
+    int pic_mem_index, nvram_mem_index, dbdma_mem_index, cuda_mem_index;
+
+    linux_boot = (kernel_filename != NULL);
+
+    /* init CPUs */
+    env = cpu_init();
+    if (cpu_model == NULL)
+        cpu_model = "default";
+    ppc_find_by_name(cpu_model, &def);
+    if (def == NULL) {
+        cpu_abort(env, "Unable to find PowerPC CPU definition\n");
+    }
+    for (i = 0; i < smp_cpus; i++) {
+        cpu_ppc_register(env, def);
+        cpu_ppc_reset(env);
+        /* Set time-base frequency to 100 Mhz */
+        cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
+        env->osi_call = vga_osi_call;
+        qemu_register_reset(&cpu_ppc_reset, env);
+        register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
+        envs[i] = env;
+    }
+
+    /* allocate RAM */
+    cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
+
+    /* allocate and load BIOS */
+    bios_offset = ram_size + vga_ram_size;
+    if (bios_name == NULL)
+        bios_name = BIOS_FILENAME;
+    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
+    bios_size = load_image(buf, phys_ram_base + bios_offset);
+    if (bios_size < 0 || bios_size > BIOS_SIZE) {
+        cpu_abort(env, "qemu: could not load PowerPC bios '%s'\n", buf);
+        exit(1);
+    }
+    bios_size = (bios_size + 0xfff) & ~0xfff;
+    cpu_register_physical_memory((uint32_t)(-bios_size),
+                                 bios_size, bios_offset | IO_MEM_ROM);
+
+    /* allocate and load VGA BIOS */
+    vga_bios_offset = bios_offset + bios_size;
+    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME);
+    vga_bios_size = load_image(buf, phys_ram_base + vga_bios_offset + 8);
+    if (vga_bios_size < 0) {
+        /* if no bios is present, we can still work */
+        fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n", buf);
+        vga_bios_size = 0;
+    } else {
+        /* set a specific header (XXX: find real Apple format for NDRV
+           drivers) */
+        phys_ram_base[vga_bios_offset] = 'N';
+        phys_ram_base[vga_bios_offset + 1] = 'D';
+        phys_ram_base[vga_bios_offset + 2] = 'R';
+        phys_ram_base[vga_bios_offset + 3] = 'V';
+        cpu_to_be32w((uint32_t *)(phys_ram_base + vga_bios_offset + 4),
+                     vga_bios_size);
+        vga_bios_size += 8;
+    }
+    vga_bios_size = (vga_bios_size + 0xfff) & ~0xfff;
+
+    if (linux_boot) {
+        kernel_base = KERNEL_LOAD_ADDR;
+        /* now we can load the kernel */
+        kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base);
+        if (kernel_size < 0) {
+            cpu_abort(env, "qemu: could not load kernel '%s'\n",
+                      kernel_filename);
+            exit(1);
+        }
+        /* load initrd */
+        if (initrd_filename) {
+            initrd_base = INITRD_LOAD_ADDR;
+            initrd_size = load_image(initrd_filename,
+                                     phys_ram_base + initrd_base);
+            if (initrd_size < 0) {
+                cpu_abort(env, "qemu: could not load initial ram disk '%s'\n",
+                          initrd_filename);
+                exit(1);
+            }
+        } else {
+            initrd_base = 0;
+            initrd_size = 0;
+        }
+        boot_device = 'm';
+    } else {
+        kernel_base = 0;
+        kernel_size = 0;
+        initrd_base = 0;
+        initrd_size = 0;
+    }
+
+    isa_mem_base = 0x80000000;
+    
+    /* Register 2 MB of ISA IO space */
+    isa_mmio_init(0xfe000000, 0x00200000);
+
+    /* XXX: we register only 1 output pin for heathrow PIC */
+    heathrow_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
+    heathrow_irqs[0] =
+        qemu_mallocz(smp_cpus * sizeof(qemu_irq) * 1);
+    /* Connect the heathrow PIC outputs to the 6xx bus */
+    for (i = 0; i < smp_cpus; i++) {
+        switch (PPC_INPUT(env)) {
+        case PPC_FLAGS_INPUT_6xx:
+            heathrow_irqs[i] = heathrow_irqs[0] + (i * 1);
+            heathrow_irqs[i][0] =
+                ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
+            break;
+        default:
+            cpu_abort(env, "Bus model not supported on OldWorld Mac machine\n");
+            exit(1);
+        }
+    }
+
+    /* init basic PC hardware */
+    if (PPC_INPUT(env) != PPC_FLAGS_INPUT_6xx) {
+        cpu_abort(env, "Only 6xx bus is supported on heathrow machine\n");
+        exit(1);
+    }
+    pic = heathrow_pic_init(&pic_mem_index, 1, heathrow_irqs);
+    pci_bus = pci_grackle_init(0xfec00000, pic);
+    pci_vga_init(pci_bus, ds, phys_ram_base + ram_size,
+                 ram_size, vga_ram_size,
+                 vga_bios_offset, vga_bios_size);
+    
+    /* XXX: suppress that */
+    dummy_irq = i8259_init(NULL);
+
+    /* XXX: use Mac Serial port */
+    serial_init(0x3f8, dummy_irq[4], serial_hds[0]);
+    
+    for(i = 0; i < nb_nics; i++) {
+        if (!nd_table[i].model)
+            nd_table[i].model = "ne2k_pci";
+        pci_nic_init(pci_bus, &nd_table[i], -1);
+    }
+    
+    pci_cmd646_ide_init(pci_bus, &bs_table[0], 0);
+
+    /* cuda also initialize ADB */
+    cuda_init(&cuda_mem_index, pic[0x12]);
+
+    adb_kbd_init(&adb_bus);
+    adb_mouse_init(&adb_bus);
+    
+    nvr = macio_nvram_init(&nvram_mem_index);
+    pmac_format_nvram_partition(nvr, 0x2000);
+
+    dbdma_init(&dbdma_mem_index);
+    
+    macio_init(pci_bus, 0x0017, 1, pic_mem_index, dbdma_mem_index,
+               cuda_mem_index, nvram_mem_index, 0, NULL);
+
+    if (usb_enabled) {
+        usb_ohci_init_pci(pci_bus, 3, -1);
+    }
+
+    if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
+        graphic_depth = 15;
+
+    m48t59 = m48t59_init(dummy_irq[8], 0xFFF04000, 0x0074, NVRAM_SIZE, 59);
+    nvram.opaque = m48t59;
+    nvram.read_fn = &m48t59_read;
+    nvram.write_fn = &m48t59_write;
+    PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "HEATHROW", ram_size, boot_device,
+                         kernel_base, kernel_size,
+                         kernel_cmdline,
+                         initrd_base, initrd_size,
+                         /* XXX: need an option to load a NVRAM image */
+                         0,
+                         graphic_width, graphic_height, graphic_depth);
+    /* No PCI init: the BIOS will do it */
+
+    /* Special port to get debug messages from Open-Firmware */
+    register_ioport_write(0x0F00, 4, 1, &PPC_debug_write, NULL);
+}
+
+QEMUMachine heathrow_machine = {
+    "g3bw",
+    "Heathrow based PowerMAC",
+    ppc_heathrow_init,
+};
diff --git a/hw/ppc_prep.c b/hw/ppc_prep.c
index 7cb92c7..966617f 100644
--- a/hw/ppc_prep.c
+++ b/hw/ppc_prep.c
@@ -527,7 +527,8 @@ static void ppc_prep_init (int ram_size, int vga_ram_size, int boot_device,
 {
     CPUState *env, *envs[MAX_CPUS];
     char buf[1024];
-    m48t59_t *nvram;
+    nvram_t nvram;
+    m48t59_t *m48t59;
     int PPC_io_memory;
     int linux_boot, i, nb_nics1, bios_size;
     unsigned long bios_offset;
@@ -678,13 +679,16 @@ static void ppc_prep_init (int ram_size, int vga_ram_size, int boot_device,
         usb_ohci_init_pci(pci_bus, 3, -1);
     }
 
-    nvram = m48t59_init(i8259[8], 0, 0x0074, NVRAM_SIZE, 59);
-    if (nvram == NULL)
+    m48t59 = m48t59_init(i8259[8], 0, 0x0074, NVRAM_SIZE, 59);
+    if (m48t59 == NULL)
         return;
-    sysctrl->nvram = nvram;
+    sysctrl->nvram = m48t59;
 
     /* Initialise NVRAM */
-    PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "PREP", ram_size, boot_device,
+    nvram.opaque = m48t59;
+    nvram.read_fn = &m48t59_read;
+    nvram.write_fn = &m48t59_write;
+    PPC_NVRAM_set_params(&nvram, NVRAM_SIZE, "PREP", ram_size, boot_device,
                          kernel_base, kernel_size,
                          kernel_cmdline,
                          initrd_base, initrd_size,