do not pretend to support low voltage operation
[qemu/mini2440/sniper_sniper_test.git] / hw / ppc_newworld.c
blobb28586485b356aea8b6b34e4b23e0037486a1569
1 /*
2 * QEMU PowerPC CHRP (currently NewWorld PowerMac) hardware System Emulator
4 * Copyright (c) 2004-2007 Fabrice Bellard
5 * Copyright (c) 2007 Jocelyn Mayer
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
23 * THE SOFTWARE.
25 #include "hw.h"
26 #include "ppc.h"
27 #include "ppc_mac.h"
28 #include "mac_dbdma.h"
29 #include "nvram.h"
30 #include "pc.h"
31 #include "pci.h"
32 #include "net.h"
33 #include "sysemu.h"
34 #include "boards.h"
35 #include "fw_cfg.h"
36 #include "escc.h"
37 #include "openpic.h"
39 #define MAX_IDE_BUS 2
40 #define VGA_BIOS_SIZE 65536
41 #define CFG_ADDR 0xf0000510
43 /* debug UniNorth */
44 //#define DEBUG_UNIN
46 #ifdef DEBUG_UNIN
47 #define UNIN_DPRINTF(fmt, args...) \
48 do { printf("UNIN: " fmt , ##args); } while (0)
49 #else
50 #define UNIN_DPRINTF(fmt, args...)
51 #endif
53 /* UniN device */
54 static void unin_writel (void *opaque, target_phys_addr_t addr, uint32_t value)
56 UNIN_DPRINTF("writel addr " TARGET_FMT_plx " val %x\n", addr, value);
59 static uint32_t unin_readl (void *opaque, target_phys_addr_t addr)
61 uint32_t value;
63 value = 0;
64 UNIN_DPRINTF("readl addr " TARGET_FMT_plx " val %x\n", addr, value);
66 return value;
69 static CPUWriteMemoryFunc *unin_write[] = {
70 &unin_writel,
71 &unin_writel,
72 &unin_writel,
75 static CPUReadMemoryFunc *unin_read[] = {
76 &unin_readl,
77 &unin_readl,
78 &unin_readl,
81 /* PowerPC Mac99 hardware initialisation */
82 static void ppc_core99_init (ram_addr_t ram_size, int vga_ram_size,
83 const char *boot_device,
84 const char *kernel_filename,
85 const char *kernel_cmdline,
86 const char *initrd_filename,
87 const char *cpu_model)
89 CPUState *env = NULL, *envs[MAX_CPUS];
90 char buf[1024];
91 qemu_irq *pic, **openpic_irqs;
92 int unin_memory;
93 int linux_boot, i;
94 ram_addr_t ram_offset, vga_ram_offset, bios_offset, vga_bios_offset;
95 uint32_t kernel_base, kernel_size, initrd_base, initrd_size;
96 PCIBus *pci_bus;
97 MacIONVRAMState *nvr;
98 int nvram_mem_index;
99 int vga_bios_size, bios_size;
100 qemu_irq *dummy_irq;
101 int pic_mem_index, dbdma_mem_index, cuda_mem_index, escc_mem_index;
102 int ppc_boot_device;
103 int index;
104 BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
105 void *fw_cfg;
106 void *dbdma;
108 linux_boot = (kernel_filename != NULL);
110 /* init CPUs */
111 if (cpu_model == NULL)
112 cpu_model = "G4";
113 for (i = 0; i < smp_cpus; i++) {
114 env = cpu_init(cpu_model);
115 if (!env) {
116 fprintf(stderr, "Unable to find PowerPC CPU definition\n");
117 exit(1);
119 /* Set time-base frequency to 100 Mhz */
120 cpu_ppc_tb_init(env, 100UL * 1000UL * 1000UL);
121 #if 0
122 env->osi_call = vga_osi_call;
123 #endif
124 qemu_register_reset(&cpu_ppc_reset, env);
125 envs[i] = env;
128 /* allocate RAM */
129 ram_offset = qemu_ram_alloc(ram_size);
130 cpu_register_physical_memory(0, ram_size, ram_offset);
132 /* allocate VGA RAM */
133 vga_ram_offset = qemu_ram_alloc(vga_ram_size);
135 /* allocate and load BIOS */
136 bios_offset = qemu_ram_alloc(BIOS_SIZE);
137 if (bios_name == NULL)
138 bios_name = PROM_FILENAME;
139 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
140 cpu_register_physical_memory(PROM_ADDR, BIOS_SIZE, bios_offset | IO_MEM_ROM);
142 /* Load OpenBIOS (ELF) */
143 bios_size = load_elf(buf, 0, NULL, NULL, NULL);
144 if (bios_size < 0 || bios_size > BIOS_SIZE) {
145 cpu_abort(env, "qemu: could not load PowerPC bios '%s'\n", buf);
146 exit(1);
149 /* allocate and load VGA BIOS */
150 vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE);
151 snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME);
152 vga_bios_size = load_image(buf, phys_ram_base + vga_bios_offset + 8);
153 if (vga_bios_size < 0) {
154 /* if no bios is present, we can still work */
155 fprintf(stderr, "qemu: warning: could not load VGA bios '%s'\n", buf);
156 vga_bios_size = 0;
157 } else {
158 /* set a specific header (XXX: find real Apple format for NDRV
159 drivers) */
160 phys_ram_base[vga_bios_offset] = 'N';
161 phys_ram_base[vga_bios_offset + 1] = 'D';
162 phys_ram_base[vga_bios_offset + 2] = 'R';
163 phys_ram_base[vga_bios_offset + 3] = 'V';
164 cpu_to_be32w((uint32_t *)(phys_ram_base + vga_bios_offset + 4),
165 vga_bios_size);
166 vga_bios_size += 8;
169 if (linux_boot) {
170 kernel_base = KERNEL_LOAD_ADDR;
171 /* now we can load the kernel */
172 kernel_size = load_image(kernel_filename, phys_ram_base + kernel_base);
173 if (kernel_size < 0) {
174 cpu_abort(env, "qemu: could not load kernel '%s'\n",
175 kernel_filename);
176 exit(1);
178 /* load initrd */
179 if (initrd_filename) {
180 initrd_base = INITRD_LOAD_ADDR;
181 initrd_size = load_image(initrd_filename,
182 phys_ram_base + initrd_base);
183 if (initrd_size < 0) {
184 cpu_abort(env, "qemu: could not load initial ram disk '%s'\n",
185 initrd_filename);
186 exit(1);
188 } else {
189 initrd_base = 0;
190 initrd_size = 0;
192 ppc_boot_device = 'm';
193 } else {
194 kernel_base = 0;
195 kernel_size = 0;
196 initrd_base = 0;
197 initrd_size = 0;
198 ppc_boot_device = '\0';
199 /* We consider that NewWorld PowerMac never have any floppy drive
200 * For now, OHW cannot boot from the network.
202 for (i = 0; boot_device[i] != '\0'; i++) {
203 if (boot_device[i] >= 'c' && boot_device[i] <= 'f') {
204 ppc_boot_device = boot_device[i];
205 break;
208 if (ppc_boot_device == '\0') {
209 fprintf(stderr, "No valid boot device for Mac99 machine\n");
210 exit(1);
214 isa_mem_base = 0x80000000;
216 /* Register 8 MB of ISA IO space */
217 isa_mmio_init(0xf2000000, 0x00800000);
219 /* UniN init */
220 unin_memory = cpu_register_io_memory(0, unin_read, unin_write, NULL);
221 cpu_register_physical_memory(0xf8000000, 0x00001000, unin_memory);
223 openpic_irqs = qemu_mallocz(smp_cpus * sizeof(qemu_irq *));
224 openpic_irqs[0] =
225 qemu_mallocz(smp_cpus * sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
226 for (i = 0; i < smp_cpus; i++) {
227 /* Mac99 IRQ connection between OpenPIC outputs pins
228 * and PowerPC input pins
230 switch (PPC_INPUT(env)) {
231 case PPC_FLAGS_INPUT_6xx:
232 openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
233 openpic_irqs[i][OPENPIC_OUTPUT_INT] =
234 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
235 openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
236 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_INT];
237 openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
238 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_MCP];
239 /* Not connected ? */
240 openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
241 /* Check this */
242 openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
243 ((qemu_irq *)env->irq_inputs)[PPC6xx_INPUT_HRESET];
244 break;
245 #if defined(TARGET_PPC64)
246 case PPC_FLAGS_INPUT_970:
247 openpic_irqs[i] = openpic_irqs[0] + (i * OPENPIC_OUTPUT_NB);
248 openpic_irqs[i][OPENPIC_OUTPUT_INT] =
249 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
250 openpic_irqs[i][OPENPIC_OUTPUT_CINT] =
251 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_INT];
252 openpic_irqs[i][OPENPIC_OUTPUT_MCK] =
253 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_MCP];
254 /* Not connected ? */
255 openpic_irqs[i][OPENPIC_OUTPUT_DEBUG] = NULL;
256 /* Check this */
257 openpic_irqs[i][OPENPIC_OUTPUT_RESET] =
258 ((qemu_irq *)env->irq_inputs)[PPC970_INPUT_HRESET];
259 break;
260 #endif /* defined(TARGET_PPC64) */
261 default:
262 cpu_abort(env, "Bus model not supported on mac99 machine\n");
263 exit(1);
266 pic = openpic_init(NULL, &pic_mem_index, smp_cpus, openpic_irqs, NULL);
267 pci_bus = pci_pmac_init(pic);
268 /* init basic PC hardware */
269 pci_vga_init(pci_bus, phys_ram_base + vga_ram_offset,
270 vga_ram_offset, vga_ram_size,
271 vga_bios_offset, vga_bios_size);
273 /* XXX: suppress that */
274 dummy_irq = i8259_init(NULL);
276 escc_mem_index = escc_init(0x80013000, dummy_irq[4], dummy_irq[5],
277 serial_hds[0], serial_hds[1], ESCC_CLOCK, 4);
279 for(i = 0; i < nb_nics; i++)
280 pci_nic_init(pci_bus, &nd_table[i], -1, "ne2k_pci");
282 if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) {
283 fprintf(stderr, "qemu: too many IDE bus\n");
284 exit(1);
286 for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) {
287 index = drive_get_index(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS);
288 if (index != -1)
289 hd[i] = drives_table[index].bdrv;
290 else
291 hd[i] = NULL;
293 dbdma = DBDMA_init(&dbdma_mem_index);
294 pci_cmd646_ide_init(pci_bus, hd, 0);
296 /* cuda also initialize ADB */
297 cuda_init(&cuda_mem_index, pic[0x19]);
299 adb_kbd_init(&adb_bus);
300 adb_mouse_init(&adb_bus);
303 macio_init(pci_bus, PCI_DEVICE_ID_APPLE_UNI_N_KEYL, 0, pic_mem_index,
304 dbdma_mem_index, cuda_mem_index, NULL, 0, NULL,
305 escc_mem_index);
307 if (usb_enabled) {
308 usb_ohci_init_pci(pci_bus, 3, -1);
311 if (graphic_depth != 15 && graphic_depth != 32 && graphic_depth != 8)
312 graphic_depth = 15;
314 /* The NewWorld NVRAM is not located in the MacIO device */
315 nvr = macio_nvram_init(&nvram_mem_index, 0x2000, 1);
316 pmac_format_nvram_partition(nvr, 0x2000);
317 macio_nvram_map(nvr, 0xFFF04000);
318 /* No PCI init: the BIOS will do it */
320 fw_cfg = fw_cfg_init(0, 0, CFG_ADDR, CFG_ADDR + 2);
321 fw_cfg_add_i32(fw_cfg, FW_CFG_ID, 1);
322 fw_cfg_add_i64(fw_cfg, FW_CFG_RAM_SIZE, (uint64_t)ram_size);
323 fw_cfg_add_i16(fw_cfg, FW_CFG_MACHINE_ID, ARCH_MAC99);
326 QEMUMachine core99_machine = {
327 .name = "mac99",
328 .desc = "Mac99 based PowerMAC",
329 .init = ppc_core99_init,
330 .ram_require = BIOS_SIZE + VGA_BIOS_SIZE + VGA_RAM_SIZE,
331 .max_cpus = MAX_CPUS,