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64201201 FB |
1 | /* |
2 | * QEMU PPC CHRP/PMAC hardware System Emulator | |
3 | * | |
4 | * Copyright (c) 2004 Fabrice Bellard | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | #include "vl.h" | |
25 | ||
26 | #define BIOS_FILENAME "ppc_rom.bin" | |
27 | #define NVRAM_SIZE 0x2000 | |
28 | ||
29 | /* PowerPC PREP hardware initialisation */ | |
30 | void ppc_chrp_init(int ram_size, int vga_ram_size, int boot_device, | |
31 | DisplayState *ds, const char **fd_filename, int snapshot, | |
32 | const char *kernel_filename, const char *kernel_cmdline, | |
33 | const char *initrd_filename) | |
34 | { | |
35 | char buf[1024]; | |
36 | m48t59_t *nvram; | |
37 | int PPC_io_memory; | |
38 | int ret, linux_boot, i, fd; | |
39 | unsigned long bios_offset; | |
40 | ||
41 | linux_boot = (kernel_filename != NULL); | |
42 | ||
43 | /* allocate RAM */ | |
44 | cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); | |
45 | ||
46 | /* allocate and load BIOS */ | |
47 | bios_offset = ram_size + vga_ram_size; | |
48 | snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME); | |
49 | ret = load_image(buf, phys_ram_base + bios_offset); | |
50 | if (ret != BIOS_SIZE) { | |
51 | fprintf(stderr, "qemu: could not load PPC PREP bios '%s'\n", buf); | |
52 | exit(1); | |
53 | } | |
54 | cpu_register_physical_memory((uint32_t)(-BIOS_SIZE), | |
55 | BIOS_SIZE, bios_offset | IO_MEM_ROM); | |
56 | cpu_single_env->nip = 0xfffffffc; | |
57 | ||
58 | /* Register CPU as a 74x/75x */ | |
59 | cpu_ppc_register(cpu_single_env, 0x00080000); | |
60 | /* Set time-base frequency to 100 Mhz */ | |
61 | cpu_ppc_tb_init(cpu_single_env, 100UL * 1000UL * 1000UL); | |
62 | ||
63 | isa_mem_base = 0xc0000000; | |
64 | pci_pmac_init(); | |
65 | ||
66 | /* Register 64 KB of ISA IO space */ | |
67 | PPC_io_memory = cpu_register_io_memory(0, PPC_io_read, PPC_io_write); | |
68 | cpu_register_physical_memory(0x80000000, 0x10000, PPC_io_memory); | |
69 | // cpu_register_physical_memory(0xfe000000, 0xfe010000, PPC_io_memory); | |
70 | ||
71 | /* init basic PC hardware */ | |
72 | vga_initialize(ds, phys_ram_base + ram_size, ram_size, | |
73 | vga_ram_size, 1); | |
74 | // openpic = openpic_init(0x00000000, 0xF0000000, 1); | |
75 | // pic_init(openpic); | |
76 | pic_init(); | |
77 | // pit = pit_init(0x40, 0); | |
78 | ||
79 | /* XXX: use Mac Serial port */ | |
80 | fd = serial_open_device(); | |
81 | serial_init(0x3f8, 4, fd); | |
82 | ||
83 | for(i = 0; i < nb_nics; i++) { | |
84 | pci_ne2000_init(&nd_table[i]); | |
85 | } | |
86 | ||
87 | pci_ide_init(bs_table); | |
88 | ||
89 | kbd_init(); | |
90 | ||
91 | nvram = m48t59_init(8, 0x0074, NVRAM_SIZE); | |
92 | ||
93 | PPC_NVRAM_set_params(nvram, NVRAM_SIZE, "PREP", ram_size, boot_device, | |
94 | 0, 0, | |
95 | 0, | |
96 | 0, | |
97 | 0, 0, | |
98 | /* XXX: need an option to load a NVRAM image */ | |
99 | 0 | |
100 | ); | |
101 | ||
102 | /* Special port to get debug messages from Open-Firmware */ | |
103 | register_ioport_write(0xFF00, 0x04, 1, &PREP_debug_write, NULL); | |
104 | register_ioport_write(0xFF00, 0x04, 2, &PREP_debug_write, NULL); | |
105 | ||
106 | pci_ppc_bios_init(); | |
107 | } |