642012017c
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@865 c046a42c-6fe2-441c-8c8c-71466251a162
108 lines
3.8 KiB
C
108 lines
3.8 KiB
C
/*
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* QEMU PPC CHRP/PMAC hardware System Emulator
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*
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* Copyright (c) 2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "vl.h"
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#define BIOS_FILENAME "ppc_rom.bin"
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#define NVRAM_SIZE 0x2000
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/* PowerPC PREP hardware initialisation */
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void ppc_chrp_init(int ram_size, int vga_ram_size, int boot_device,
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DisplayState *ds, const char **fd_filename, int snapshot,
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const char *kernel_filename, const char *kernel_cmdline,
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const char *initrd_filename)
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{
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char buf[1024];
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m48t59_t *nvram;
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int PPC_io_memory;
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int ret, linux_boot, i, fd;
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unsigned long bios_offset;
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linux_boot = (kernel_filename != NULL);
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/* allocate RAM */
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cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
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/* allocate and load BIOS */
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bios_offset = ram_size + vga_ram_size;
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snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
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ret = load_image(buf, phys_ram_base + bios_offset);
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if (ret != BIOS_SIZE) {
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fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf);
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exit(1);
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}
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cpu_register_physical_memory((uint32_t)(-BIOS_SIZE),
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BIOS_SIZE, bios_offset | IO_MEM_ROM);
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cpu_single_env->nip = 0xfffffffc;
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/* Register CPU as a 74x/75x */
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cpu_ppc_register(cpu_single_env, 0x00080000);
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/* Set time-base frequency to 100 Mhz */
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cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL);
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isa_mem_base = 0xc0000000;
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pci_pmac_init();
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/* Register 64 KB of ISA IO space */
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PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write);
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cpu_register_physical_memory(0x80000000, 0x10000, PPC_io_memory);
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// cpu_register_physical_memory(0xfe000000, 0xfe010000, PPC_io_memory);
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/* init basic PC hardware */
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vga_initialize(ds, phys_ram_base + ram_size, ram_size,
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vga_ram_size, 1);
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// openpic = openpic_init(0x00000000, 0xF0000000, 1);
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// pic_init(openpic);
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pic_init();
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// pit = pit_init(0x40, 0);
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/* XXX: use Mac Serial port */
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fd = serial_open_device();
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serial_init(0x3f8, 4, fd);
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for(i = 0; i < nb_nics; i++) {
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pci_ne2000_init(&nd_table[i]);
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}
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pci_ide_init(bs_table);
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kbd_init();
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nvram = m48t59_init(8, 0x0074, NVRAM_SIZE);
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PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "PREP", ram_size, boot_device,
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0, 0,
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0,
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0,
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0, 0,
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/* XXX: need an option to load a NVRAM image */
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0
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);
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/* Special port to get debug messages from Open-Firmware */
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register_ioport_write(0xFF00, 0x04, 1, &PREP_debug_write, NULL);
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register_ioport_write(0xFF00, 0x04, 2, &PREP_debug_write, NULL);
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pci_ppc_bios_init();
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}
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