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5fafdf24 1/*
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PB
2 * ARM RealView Baseboard System emulation.
3 *
a1bb27b1 4 * Copyright (c) 2006-2007 CodeSourcery.
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5 * Written by Paul Brook
6 *
7 * This code is licenced under the GPL.
8 */
9
2e9bdce5 10#include "sysbus.h"
87ecb68b
PB
11#include "arm-misc.h"
12#include "primecell.h"
13#include "devices.h"
14#include "pci.h"
18e08a55 15#include "usb-ohci.h"
87ecb68b
PB
16#include "net.h"
17#include "sysemu.h"
18#include "boards.h"
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PB
19#include "bitbang_i2c.h"
20#include "sysbus.h"
2446333c 21#include "blockdev.h"
e69954b9 22
0ef849d7 23#define SMP_BOOT_ADDR 0xe0000000
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PB
24
25typedef struct {
26 SysBusDevice busdev;
27 bitbang_i2c_interface *bitbang;
28 int out;
29 int in;
30} RealViewI2CState;
31
32static uint32_t realview_i2c_read(void *opaque, target_phys_addr_t offset)
33{
34 RealViewI2CState *s = (RealViewI2CState *)opaque;
35
36 if (offset == 0) {
37 return (s->out & 1) | (s->in << 1);
38 } else {
39 hw_error("realview_i2c_read: Bad offset 0x%x\n", (int)offset);
40 return -1;
41 }
42}
43
44static void realview_i2c_write(void *opaque, target_phys_addr_t offset,
45 uint32_t value)
46{
47 RealViewI2CState *s = (RealViewI2CState *)opaque;
48
49 switch (offset) {
50 case 0:
51 s->out |= value & 3;
52 break;
53 case 4:
54 s->out &= ~value;
55 break;
56 default:
57 hw_error("realview_i2c_write: Bad offset 0x%x\n", (int)offset);
58 }
59 bitbang_i2c_set(s->bitbang, BITBANG_I2C_SCL, (s->out & 1) != 0);
60 s->in = bitbang_i2c_set(s->bitbang, BITBANG_I2C_SDA, (s->out & 2) != 0);
61}
62
63static CPUReadMemoryFunc * const realview_i2c_readfn[] = {
64 realview_i2c_read,
65 realview_i2c_read,
66 realview_i2c_read
67};
68
69static CPUWriteMemoryFunc * const realview_i2c_writefn[] = {
70 realview_i2c_write,
71 realview_i2c_write,
72 realview_i2c_write
73};
74
75static int realview_i2c_init(SysBusDevice *dev)
76{
77 RealViewI2CState *s = FROM_SYSBUS(RealViewI2CState, dev);
78 i2c_bus *bus;
79 int iomemtype;
80
81 bus = i2c_init_bus(&dev->qdev, "i2c");
82 s->bitbang = bitbang_i2c_init(bus);
83 iomemtype = cpu_register_io_memory(realview_i2c_readfn,
84 realview_i2c_writefn, s);
85 sysbus_init_mmio(dev, 0x1000, iomemtype);
86 return 0;
87}
88
89static SysBusDeviceInfo realview_i2c_info = {
90 .init = realview_i2c_init,
91 .qdev.name = "realview_i2c",
92 .qdev.size = sizeof(RealViewI2CState),
93};
94
95static void realview_register_devices(void)
96{
97 sysbus_register_withprop(&realview_i2c_info);
98}
99
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100/* Board init. */
101
f93eb9ff 102static struct arm_boot_info realview_binfo = {
0ef849d7 103 .smp_loader_start = SMP_BOOT_ADDR,
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AZ
104};
105
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PB
106static void secondary_cpu_reset(void *opaque)
107{
108 CPUState *env = opaque;
109
110 cpu_reset(env);
111 /* Set entry point for secondary CPUs. This assumes we're using
112 the init code from arm_boot.c. Real hardware resets all CPUs
113 the same. */
0ef849d7 114 env->regs[15] = SMP_BOOT_ADDR;
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115}
116
f7c70325 117/* The following two lists must be consistent. */
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PB
118enum realview_board_type {
119 BOARD_EB,
0ef849d7 120 BOARD_EB_MPCORE,
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PB
121 BOARD_PB_A8,
122 BOARD_PBX_A9,
123};
124
d05ac8fa 125static const int realview_board_id[] = {
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126 0x33b,
127 0x33b,
128 0x769,
129 0x76d
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130};
131
c227f099 132static void realview_init(ram_addr_t ram_size,
3023f332 133 const char *boot_device,
e69954b9 134 const char *kernel_filename, const char *kernel_cmdline,
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PB
135 const char *initrd_filename, const char *cpu_model,
136 enum realview_board_type board_type)
e69954b9 137{
c988bfad 138 CPUState *env = NULL;
c227f099 139 ram_addr_t ram_offset;
0027b06d 140 DeviceState *dev;
c988bfad 141 SysBusDevice *busdev;
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142 qemu_irq *irqp;
143 qemu_irq pic[64];
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144 PCIBus *pci_bus;
145 NICInfo *nd;
eee48504 146 i2c_bus *i2c;
e69954b9 147 int n;
0ef849d7 148 int done_nic = 0;
9ee6e8bb 149 qemu_irq cpu_irq[4];
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150 int is_mpcore = 0;
151 int is_pb = 0;
26e92f65 152 uint32_t proc_id = 0;
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153 uint32_t sys_id;
154 ram_addr_t low_ram_size;
e69954b9 155
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156 switch (board_type) {
157 case BOARD_EB:
158 break;
159 case BOARD_EB_MPCORE:
160 is_mpcore = 1;
161 break;
162 case BOARD_PB_A8:
163 is_pb = 1;
164 break;
165 case BOARD_PBX_A9:
166 is_mpcore = 1;
167 is_pb = 1;
168 break;
169 }
c988bfad 170 for (n = 0; n < smp_cpus; n++) {
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PB
171 env = cpu_init(cpu_model);
172 if (!env) {
173 fprintf(stderr, "Unable to find CPU definition\n");
174 exit(1);
175 }
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176 irqp = arm_pic_init_cpu(env);
177 cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
9ee6e8bb 178 if (n > 0) {
be0f204a 179 qemu_register_reset(secondary_cpu_reset, env);
9ee6e8bb 180 }
aaed909a 181 }
26e92f65 182 if (arm_feature(env, ARM_FEATURE_V7)) {
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PB
183 if (is_mpcore) {
184 proc_id = 0x0c000000;
185 } else {
186 proc_id = 0x0e000000;
187 }
26e92f65
PB
188 } else if (arm_feature(env, ARM_FEATURE_V6K)) {
189 proc_id = 0x06000000;
190 } else if (arm_feature(env, ARM_FEATURE_V6)) {
191 proc_id = 0x04000000;
192 } else {
193 proc_id = 0x02000000;
194 }
aaed909a 195
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196 if (is_pb && ram_size > 0x20000000) {
197 /* Core tile RAM. */
198 low_ram_size = ram_size - 0x20000000;
199 ram_size = 0x20000000;
1724f049 200 ram_offset = qemu_ram_alloc(NULL, "realview.lowmem", low_ram_size);
21a88941
PB
201 cpu_register_physical_memory(0x20000000, low_ram_size,
202 ram_offset | IO_MEM_RAM);
203 }
204
1724f049 205 ram_offset = qemu_ram_alloc(NULL, "realview.highmem", ram_size);
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206 low_ram_size = ram_size;
207 if (low_ram_size > 0x10000000)
208 low_ram_size = 0x10000000;
e69954b9 209 /* SDRAM at address zero. */
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210 cpu_register_physical_memory(0, low_ram_size, ram_offset | IO_MEM_RAM);
211 if (is_pb) {
212 /* And again at a high address. */
213 cpu_register_physical_memory(0x70000000, ram_size,
214 ram_offset | IO_MEM_RAM);
215 } else {
216 ram_size = low_ram_size;
217 }
e69954b9 218
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219 sys_id = is_pb ? 0x01780500 : 0xc1400400;
220 arm_sysctl_init(0x10000000, sys_id, proc_id);
9ee6e8bb 221
c988bfad 222 if (is_mpcore) {
f7c70325 223 dev = qdev_create(NULL, is_pb ? "a9mpcore_priv": "realview_mpcore");
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224 qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
225 qdev_init_nofail(dev);
226 busdev = sysbus_from_qdev(dev);
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227 if (is_pb) {
228 realview_binfo.smp_priv_base = 0x1f000000;
229 } else {
230 realview_binfo.smp_priv_base = 0x10100000;
231 }
232 sysbus_mmio_map(busdev, 0, realview_binfo.smp_priv_base);
c988bfad
PB
233 for (n = 0; n < smp_cpus; n++) {
234 sysbus_connect_irq(busdev, n, cpu_irq[n]);
235 }
9ee6e8bb 236 } else {
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PB
237 uint32_t gic_addr = is_pb ? 0x1e000000 : 0x10040000;
238 /* For now just create the nIRQ GIC, and ignore the others. */
239 dev = sysbus_create_simple("realview_gic", gic_addr, cpu_irq[0]);
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PB
240 }
241 for (n = 0; n < 64; n++) {
067a3ddc 242 pic[n] = qdev_get_gpio_in(dev, n);
9ee6e8bb
PB
243 }
244
86394e96
PB
245 sysbus_create_simple("pl050_keyboard", 0x10006000, pic[20]);
246 sysbus_create_simple("pl050_mouse", 0x10007000, pic[21]);
e69954b9 247
a7d518a6
PB
248 sysbus_create_simple("pl011", 0x10009000, pic[12]);
249 sysbus_create_simple("pl011", 0x1000a000, pic[13]);
250 sysbus_create_simple("pl011", 0x1000b000, pic[14]);
251 sysbus_create_simple("pl011", 0x1000c000, pic[15]);
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252
253 /* DMA controller is optional, apparently. */
b4496b13 254 sysbus_create_simple("pl081", 0x10030000, pic[24]);
e69954b9 255
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PB
256 sysbus_create_simple("sp804", 0x10011000, pic[4]);
257 sysbus_create_simple("sp804", 0x10012000, pic[5]);
e69954b9 258
2e9bdce5 259 sysbus_create_simple("pl110_versatile", 0x10020000, pic[23]);
e69954b9 260
aa9311d8 261 sysbus_create_varargs("pl181", 0x10005000, pic[17], pic[18], NULL);
a1bb27b1 262
a63bdb31 263 sysbus_create_simple("pl031", 0x10017000, pic[10]);
7e1543c2 264
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PB
265 if (!is_pb) {
266 dev = sysbus_create_varargs("realview_pci", 0x60000000,
267 pic[48], pic[49], pic[50], pic[51], NULL);
268 pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci");
269 if (usb_enabled) {
a67ba3b6 270 usb_ohci_init_pci(pci_bus, -1);
0ef849d7
PB
271 }
272 n = drive_get_max_bus(IF_SCSI);
273 while (n >= 0) {
274 pci_create_simple(pci_bus, -1, "lsi53c895a");
275 n--;
276 }
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PB
277 }
278 for(n = 0; n < nb_nics; n++) {
279 nd = &nd_table[n];
0ae18cee 280
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PB
281 if ((!nd->model && !done_nic)
282 || strcmp(nd->model, is_pb ? "lan9118" : "smc91c111") == 0) {
283 if (is_pb) {
284 lan9118_init(nd, 0x4e000000, pic[28]);
285 } else {
286 smc91c111_init(nd, 0x4e000000, pic[28]);
287 }
288 done_nic = 1;
e69954b9 289 } else {
07caea31 290 pci_nic_init_nofail(nd, "rtl8139", NULL);
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PB
291 }
292 }
293
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PB
294 dev = sysbus_create_simple("realview_i2c", 0x10002000, NULL);
295 i2c = (i2c_bus *)qdev_get_child_bus(dev, "i2c");
296 i2c_create_slave(i2c, "ds1338", 0x68);
297
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PB
298 /* Memory map for RealView Emulation Baseboard: */
299 /* 0x10000000 System registers. */
300 /* 0x10001000 System controller. */
eee48504 301 /* 0x10002000 Two-Wire Serial Bus. */
e69954b9
PB
302 /* 0x10003000 Reserved. */
303 /* 0x10004000 AACI. */
304 /* 0x10005000 MCI. */
305 /* 0x10006000 KMI0. */
306 /* 0x10007000 KMI1. */
0ef849d7 307 /* 0x10008000 Character LCD. (EB) */
e69954b9
PB
308 /* 0x10009000 UART0. */
309 /* 0x1000a000 UART1. */
310 /* 0x1000b000 UART2. */
311 /* 0x1000c000 UART3. */
312 /* 0x1000d000 SSPI. */
313 /* 0x1000e000 SCI. */
314 /* 0x1000f000 Reserved. */
315 /* 0x10010000 Watchdog. */
316 /* 0x10011000 Timer 0+1. */
317 /* 0x10012000 Timer 2+3. */
318 /* 0x10013000 GPIO 0. */
319 /* 0x10014000 GPIO 1. */
320 /* 0x10015000 GPIO 2. */
0ef849d7 321 /* 0x10002000 Two-Wire Serial Bus - DVI. (PB) */
7e1543c2 322 /* 0x10017000 RTC. */
e69954b9
PB
323 /* 0x10018000 DMC. */
324 /* 0x10019000 PCI controller config. */
325 /* 0x10020000 CLCD. */
326 /* 0x10030000 DMA Controller. */
0ef849d7
PB
327 /* 0x10040000 GIC1. (EB) */
328 /* 0x10050000 GIC2. (EB) */
329 /* 0x10060000 GIC3. (EB) */
330 /* 0x10070000 GIC4. (EB) */
e69954b9 331 /* 0x10080000 SMC. */
0ef849d7
PB
332 /* 0x1e000000 GIC1. (PB) */
333 /* 0x1e001000 GIC2. (PB) */
334 /* 0x1e002000 GIC3. (PB) */
335 /* 0x1e003000 GIC4. (PB) */
e69954b9
PB
336 /* 0x40000000 NOR flash. */
337 /* 0x44000000 DoC flash. */
338 /* 0x48000000 SRAM. */
339 /* 0x4c000000 Configuration flash. */
340 /* 0x4e000000 Ethernet. */
341 /* 0x4f000000 USB. */
342 /* 0x50000000 PISMO. */
343 /* 0x54000000 PISMO. */
344 /* 0x58000000 PISMO. */
345 /* 0x5c000000 PISMO. */
346 /* 0x60000000 PCI. */
347 /* 0x61000000 PCI Self Config. */
348 /* 0x62000000 PCI Config. */
349 /* 0x63000000 PCI IO. */
350 /* 0x64000000 PCI mem 0. */
351 /* 0x68000000 PCI mem 1. */
352 /* 0x6c000000 PCI mem 2. */
353
7ffab4d7
PB
354 /* ??? Hack to map an additional page of ram for the secondary CPU
355 startup code. I guess this works on real hardware because the
356 BootROM happens to be in ROM/flash or in memory that isn't clobbered
357 until after Linux boots the secondary CPUs. */
1724f049 358 ram_offset = qemu_ram_alloc(NULL, "realview.hack", 0x1000);
0ef849d7
PB
359 cpu_register_physical_memory(SMP_BOOT_ADDR, 0x1000,
360 ram_offset | IO_MEM_RAM);
7ffab4d7 361
f93eb9ff
AZ
362 realview_binfo.ram_size = ram_size;
363 realview_binfo.kernel_filename = kernel_filename;
364 realview_binfo.kernel_cmdline = kernel_cmdline;
365 realview_binfo.initrd_filename = initrd_filename;
c988bfad 366 realview_binfo.nb_cpus = smp_cpus;
f7c70325 367 realview_binfo.board_id = realview_board_id[board_type];
21a88941 368 realview_binfo.loader_start = (board_type == BOARD_PB_A8 ? 0x70000000 : 0);
f93eb9ff 369 arm_load_kernel(first_cpu, &realview_binfo);
e69954b9
PB
370}
371
c988bfad
PB
372static void realview_eb_init(ram_addr_t ram_size,
373 const char *boot_device,
374 const char *kernel_filename, const char *kernel_cmdline,
375 const char *initrd_filename, const char *cpu_model)
376{
377 if (!cpu_model) {
378 cpu_model = "arm926";
379 }
380 realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
381 initrd_filename, cpu_model, BOARD_EB);
382}
383
384static void realview_eb_mpcore_init(ram_addr_t ram_size,
385 const char *boot_device,
386 const char *kernel_filename, const char *kernel_cmdline,
387 const char *initrd_filename, const char *cpu_model)
388{
389 if (!cpu_model) {
390 cpu_model = "arm11mpcore";
391 }
392 realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
393 initrd_filename, cpu_model, BOARD_EB_MPCORE);
394}
395
0ef849d7
PB
396static void realview_pb_a8_init(ram_addr_t ram_size,
397 const char *boot_device,
398 const char *kernel_filename, const char *kernel_cmdline,
399 const char *initrd_filename, const char *cpu_model)
400{
401 if (!cpu_model) {
402 cpu_model = "cortex-a8";
403 }
404 realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
405 initrd_filename, cpu_model, BOARD_PB_A8);
406}
407
f7c70325
PB
408static void realview_pbx_a9_init(ram_addr_t ram_size,
409 const char *boot_device,
410 const char *kernel_filename, const char *kernel_cmdline,
411 const char *initrd_filename, const char *cpu_model)
412{
413 if (!cpu_model) {
414 cpu_model = "cortex-a9";
415 }
416 realview_init(ram_size, boot_device, kernel_filename, kernel_cmdline,
417 initrd_filename, cpu_model, BOARD_PBX_A9);
418}
419
c988bfad
PB
420static QEMUMachine realview_eb_machine = {
421 .name = "realview-eb",
c9b1ae2c 422 .desc = "ARM RealView Emulation Baseboard (ARM926EJ-S)",
c988bfad
PB
423 .init = realview_eb_init,
424 .use_scsi = 1,
425};
426
427static QEMUMachine realview_eb_mpcore_machine = {
428 .name = "realview-eb-mpcore",
429 .desc = "ARM RealView Emulation Baseboard (ARM11MPCore)",
430 .init = realview_eb_mpcore_init,
c9b1ae2c 431 .use_scsi = 1,
c988bfad 432 .max_cpus = 4,
e69954b9 433};
f80f9ec9 434
0ef849d7
PB
435static QEMUMachine realview_pb_a8_machine = {
436 .name = "realview-pb-a8",
437 .desc = "ARM RealView Platform Baseboard for Cortex-A8",
438 .init = realview_pb_a8_init,
f7c70325
PB
439};
440
441static QEMUMachine realview_pbx_a9_machine = {
442 .name = "realview-pbx-a9",
443 .desc = "ARM RealView Platform Baseboard Explore for Cortex-A9",
444 .init = realview_pbx_a9_init,
0ef849d7 445 .use_scsi = 1,
f7c70325 446 .max_cpus = 4,
0ef849d7
PB
447};
448
f80f9ec9
AL
449static void realview_machine_init(void)
450{
c988bfad
PB
451 qemu_register_machine(&realview_eb_machine);
452 qemu_register_machine(&realview_eb_mpcore_machine);
0ef849d7 453 qemu_register_machine(&realview_pb_a8_machine);
f7c70325 454 qemu_register_machine(&realview_pbx_a9_machine);
f80f9ec9
AL
455}
456
457machine_init(realview_machine_init);
eee48504 458device_init(realview_register_devices)