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/*
* 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, NULL);
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();
}
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