PowerPC prep/chrp/pmac support

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@865 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 107 insertions, 0 deletions

diff --git a/hw/ppc_chrp.c b/hw/ppc_chrp.c
new file mode 100644
index 0000000000..380fb6e530
--- /dev/null
+++ b/hw/ppc_chrp.c
@@ -0,0 +1,107 @@
+/*
+ * QEMU PPC CHRP/PMAC hardware System Emulator
+ * 
+ * Copyright (c) 2004 Fabrice Bellard
+ * 
+ * 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"
+
+#define BIOS_FILENAME "ppc_rom.bin"
+#define NVRAM_SIZE        0x2000
+
+/* PowerPC PREP hardware initialisation */
+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)
+{
+    char buf[1024];
+    m48t59_t *nvram;
+    int PPC_io_memory;
+    int ret, linux_boot, i, fd;
+    unsigned long bios_offset;
+    
+    linux_boot = (kernel_filename != NULL);
+
+    /* allocate RAM */
+    cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
+
+    /* allocate and load BIOS */
+    bios_offset = ram_size + vga_ram_size;
+    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
+    ret = load_image(buf, phys_ram_base + bios_offset);
+    if (ret != BIOS_SIZE) {
+        fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf);
+        exit(1);
+    }
+    cpu_register_physical_memory((uint32_t)(-BIOS_SIZE), 
+                                 BIOS_SIZE, bios_offset | IO_MEM_ROM);
+    cpu_single_env->nip = 0xfffffffc;
+
+    /* Register CPU as a 74x/75x */
+    cpu_ppc_register(cpu_single_env, 0x00080000);
+    /* Set time-base frequency to 100 Mhz */
+    cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL);
+
+    isa_mem_base = 0xc0000000;
+    pci_pmac_init();
+
+    /* Register 64 KB of ISA IO space */
+    PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write);
+    cpu_register_physical_memory(0x80000000, 0x10000, PPC_io_memory);
+    //    cpu_register_physical_memory(0xfe000000, 0xfe010000, PPC_io_memory);
+
+    /* init basic PC hardware */
+    vga_initialize(ds, phys_ram_base + ram_size, ram_size, 
+                   vga_ram_size, 1);
+    //    openpic = openpic_init(0x00000000, 0xF0000000, 1);
+    //    pic_init(openpic);
+    pic_init();
+    //    pit = pit_init(0x40, 0);
+
+    /* XXX: use Mac Serial port */
+    fd = serial_open_device();
+    serial_init(0x3f8, 4, fd);
+
+    for(i = 0; i < nb_nics; i++) {
+        pci_ne2000_init(&nd_table[i]);
+    }
+
+    pci_ide_init(bs_table);
+
+    kbd_init();
+
+    nvram = m48t59_init(8, 0x0074, NVRAM_SIZE);
+
+    PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "PREP", ram_size, boot_device,
+                         0, 0,
+                         0,
+                         0,
+                         0, 0,
+                         /* XXX: need an option to load a NVRAM image */
+                         0
+                         );
+
+    /* Special port to get debug messages from Open-Firmware */
+    register_ioport_write(0xFF00, 0x04, 1, &PREP_debug_write, NULL);
+    register_ioport_write(0xFF00, 0x04, 2, &PREP_debug_write, NULL);
+    
+    pci_ppc_bios_init();
+}