2 * ARM Integrator CP System emulation.
4 * Copyright (c) 2005-2007 CodeSourcery.
5 * Written by Paul Brook
7 * This code is licenced under the GPL
18 uint32_t flash_offset;
32 static uint8_t integrator_spd[128] = {
33 128, 8, 4, 11, 9, 1, 64, 0, 2, 0xa0, 0xa0, 0, 0, 8, 0, 1,
34 0xe, 4, 0x1c, 1, 2, 0x20, 0xc0, 0, 0, 0, 0, 0x30, 0x28, 0x30, 0x28, 0x40
37 static uint32_t integratorcm_read(void *opaque, target_phys_addr_t offset)
39 integratorcm_state *s = (integratorcm_state *)opaque;
41 if (offset >= 0x100 && offset < 0x200) {
45 return integrator_spd[offset >> 2];
47 switch (offset >> 2) {
59 if (s->cm_lock == 0xa05f) {
64 case 6: /* CM_LMBUSCNT */
65 /* ??? High frequency timer. */
66 cpu_abort(cpu_single_env, "integratorcm_read: CM_LMBUSCNT");
67 case 7: /* CM_AUXOSC */
69 case 8: /* CM_SDRAM */
73 case 10: /* CM_REFCT */
74 /* ??? High frequency timer. */
75 cpu_abort(cpu_single_env, "integratorcm_read: CM_REFCT");
76 case 12: /* CM_FLAGS */
78 case 14: /* CM_NVFLAGS */
80 case 16: /* CM_IRQ_STAT */
81 return s->int_level & s->irq_enabled;
82 case 17: /* CM_IRQ_RSTAT */
84 case 18: /* CM_IRQ_ENSET */
85 return s->irq_enabled;
86 case 20: /* CM_SOFT_INTSET */
87 return s->int_level & 1;
88 case 24: /* CM_FIQ_STAT */
89 return s->int_level & s->fiq_enabled;
90 case 25: /* CM_FIQ_RSTAT */
92 case 26: /* CM_FIQ_ENSET */
93 return s->fiq_enabled;
94 case 32: /* CM_VOLTAGE_CTL0 */
95 case 33: /* CM_VOLTAGE_CTL1 */
96 case 34: /* CM_VOLTAGE_CTL2 */
97 case 35: /* CM_VOLTAGE_CTL3 */
98 /* ??? Voltage control unimplemented. */
101 cpu_abort (cpu_single_env,
102 "integratorcm_read: Unimplemented offset 0x%x\n", (int)offset);
107 static void integratorcm_do_remap(integratorcm_state *s, int flash)
110 cpu_register_physical_memory(0, 0x100000, IO_MEM_RAM);
112 cpu_register_physical_memory(0, 0x100000, s->flash_offset | IO_MEM_RAM);
114 //??? tlb_flush (cpu_single_env, 1);
117 static void integratorcm_set_ctrl(integratorcm_state *s, uint32_t value)
120 cpu_abort(cpu_single_env, "Board reset\n");
122 if ((s->cm_init ^ value) & 4) {
123 integratorcm_do_remap(s, (value & 4) == 0);
125 if ((s->cm_init ^ value) & 1) {
126 printf("Green LED %s\n", (value & 1) ? "on" : "off");
128 s->cm_init = (s->cm_init & ~ 5) | (value ^ 5);
131 static void integratorcm_update(integratorcm_state *s)
133 /* ??? The CPU irq/fiq is raised when either the core module or base PIC
135 if (s->int_level & (s->irq_enabled | s->fiq_enabled))
136 cpu_abort(cpu_single_env, "Core module interrupt\n");
139 static void integratorcm_write(void *opaque, target_phys_addr_t offset,
142 integratorcm_state *s = (integratorcm_state *)opaque;
143 offset -= 0x10000000;
144 switch (offset >> 2) {
146 if (s->cm_lock == 0xa05f)
149 case 3: /* CM_CTRL */
150 integratorcm_set_ctrl(s, value);
152 case 5: /* CM_LOCK */
153 s->cm_lock = value & 0xffff;
155 case 7: /* CM_AUXOSC */
156 if (s->cm_lock == 0xa05f)
157 s->cm_auxosc = value;
159 case 8: /* CM_SDRAM */
162 case 9: /* CM_INIT */
163 /* ??? This can change the memory bus frequency. */
166 case 12: /* CM_FLAGSS */
167 s->cm_flags |= value;
169 case 13: /* CM_FLAGSC */
170 s->cm_flags &= ~value;
172 case 14: /* CM_NVFLAGSS */
173 s->cm_nvflags |= value;
175 case 15: /* CM_NVFLAGSS */
176 s->cm_nvflags &= ~value;
178 case 18: /* CM_IRQ_ENSET */
179 s->irq_enabled |= value;
180 integratorcm_update(s);
182 case 19: /* CM_IRQ_ENCLR */
183 s->irq_enabled &= ~value;
184 integratorcm_update(s);
186 case 20: /* CM_SOFT_INTSET */
187 s->int_level |= (value & 1);
188 integratorcm_update(s);
190 case 21: /* CM_SOFT_INTCLR */
191 s->int_level &= ~(value & 1);
192 integratorcm_update(s);
194 case 26: /* CM_FIQ_ENSET */
195 s->fiq_enabled |= value;
196 integratorcm_update(s);
198 case 27: /* CM_FIQ_ENCLR */
199 s->fiq_enabled &= ~value;
200 integratorcm_update(s);
202 case 32: /* CM_VOLTAGE_CTL0 */
203 case 33: /* CM_VOLTAGE_CTL1 */
204 case 34: /* CM_VOLTAGE_CTL2 */
205 case 35: /* CM_VOLTAGE_CTL3 */
206 /* ??? Voltage control unimplemented. */
209 cpu_abort (cpu_single_env,
210 "integratorcm_write: Unimplemented offset 0x%x\n", (int)offset);
215 /* Integrator/CM control registers. */
217 static CPUReadMemoryFunc *integratorcm_readfn[] = {
223 static CPUWriteMemoryFunc *integratorcm_writefn[] = {
229 static void integratorcm_init(int memsz, uint32_t flash_offset)
232 integratorcm_state *s;
234 s = (integratorcm_state *)qemu_mallocz(sizeof(integratorcm_state));
235 s->cm_osc = 0x01000048;
236 /* ??? What should the high bits of this value be? */
237 s->cm_auxosc = 0x0007feff;
238 s->cm_sdram = 0x00011122;
240 integrator_spd[31] = 64;
242 } else if (memsz >= 128) {
243 integrator_spd[31] = 32;
245 } else if (memsz >= 64) {
246 integrator_spd[31] = 16;
248 } else if (memsz >= 32) {
249 integrator_spd[31] = 4;
252 integrator_spd[31] = 2;
254 memcpy(integrator_spd + 73, "QEMU-MEMORY", 11);
255 s->cm_init = 0x00000112;
256 s->flash_offset = flash_offset;
258 iomemtype = cpu_register_io_memory(0, integratorcm_readfn,
259 integratorcm_writefn, s);
260 cpu_register_physical_memory(0x10000000, 0x00800000, iomemtype);
261 integratorcm_do_remap(s, 1);
262 /* ??? Save/restore. */
265 /* Integrator/CP hardware emulation. */
266 /* Primary interrupt controller. */
268 typedef struct icp_pic_state
272 uint32_t irq_enabled;
273 uint32_t fiq_enabled;
278 static void icp_pic_update(icp_pic_state *s)
282 flags = (s->level & s->irq_enabled);
283 qemu_set_irq(s->parent_irq, flags != 0);
284 flags = (s->level & s->fiq_enabled);
285 qemu_set_irq(s->parent_fiq, flags != 0);
288 static void icp_pic_set_irq(void *opaque, int irq, int level)
290 icp_pic_state *s = (icp_pic_state *)opaque;
292 s->level |= 1 << irq;
294 s->level &= ~(1 << irq);
298 static uint32_t icp_pic_read(void *opaque, target_phys_addr_t offset)
300 icp_pic_state *s = (icp_pic_state *)opaque;
303 switch (offset >> 2) {
304 case 0: /* IRQ_STATUS */
305 return s->level & s->irq_enabled;
306 case 1: /* IRQ_RAWSTAT */
308 case 2: /* IRQ_ENABLESET */
309 return s->irq_enabled;
310 case 4: /* INT_SOFTSET */
312 case 8: /* FRQ_STATUS */
313 return s->level & s->fiq_enabled;
314 case 9: /* FRQ_RAWSTAT */
316 case 10: /* FRQ_ENABLESET */
317 return s->fiq_enabled;
318 case 3: /* IRQ_ENABLECLR */
319 case 5: /* INT_SOFTCLR */
320 case 11: /* FRQ_ENABLECLR */
322 printf ("icp_pic_read: Bad register offset 0x%x\n", (int)offset);
327 static void icp_pic_write(void *opaque, target_phys_addr_t offset,
330 icp_pic_state *s = (icp_pic_state *)opaque;
333 switch (offset >> 2) {
334 case 2: /* IRQ_ENABLESET */
335 s->irq_enabled |= value;
337 case 3: /* IRQ_ENABLECLR */
338 s->irq_enabled &= ~value;
340 case 4: /* INT_SOFTSET */
342 icp_pic_set_irq(s, 0, 1);
344 case 5: /* INT_SOFTCLR */
346 icp_pic_set_irq(s, 0, 0);
348 case 10: /* FRQ_ENABLESET */
349 s->fiq_enabled |= value;
351 case 11: /* FRQ_ENABLECLR */
352 s->fiq_enabled &= ~value;
354 case 0: /* IRQ_STATUS */
355 case 1: /* IRQ_RAWSTAT */
356 case 8: /* FRQ_STATUS */
357 case 9: /* FRQ_RAWSTAT */
359 printf ("icp_pic_write: Bad register offset 0x%x\n", (int)offset);
365 static CPUReadMemoryFunc *icp_pic_readfn[] = {
371 static CPUWriteMemoryFunc *icp_pic_writefn[] = {
377 static qemu_irq *icp_pic_init(uint32_t base,
378 qemu_irq parent_irq, qemu_irq parent_fiq)
384 s = (icp_pic_state *)qemu_mallocz(sizeof(icp_pic_state));
387 qi = qemu_allocate_irqs(icp_pic_set_irq, s, 32);
389 s->parent_irq = parent_irq;
390 s->parent_fiq = parent_fiq;
391 iomemtype = cpu_register_io_memory(0, icp_pic_readfn,
393 cpu_register_physical_memory(base, 0x00800000, iomemtype);
394 /* ??? Save/restore. */
398 /* CP control registers. */
403 static uint32_t icp_control_read(void *opaque, target_phys_addr_t offset)
405 icp_control_state *s = (icp_control_state *)opaque;
407 switch (offset >> 2) {
408 case 0: /* CP_IDFIELD */
410 case 1: /* CP_FLASHPROG */
412 case 2: /* CP_INTREG */
414 case 3: /* CP_DECODE */
417 cpu_abort (cpu_single_env, "icp_control_read: Bad offset %x\n",
423 static void icp_control_write(void *opaque, target_phys_addr_t offset,
426 icp_control_state *s = (icp_control_state *)opaque;
428 switch (offset >> 2) {
429 case 1: /* CP_FLASHPROG */
430 case 2: /* CP_INTREG */
431 case 3: /* CP_DECODE */
432 /* Nothing interesting implemented yet. */
435 cpu_abort (cpu_single_env, "icp_control_write: Bad offset %x\n",
439 static CPUReadMemoryFunc *icp_control_readfn[] = {
445 static CPUWriteMemoryFunc *icp_control_writefn[] = {
451 static void icp_control_init(uint32_t base)
454 icp_control_state *s;
456 s = (icp_control_state *)qemu_mallocz(sizeof(icp_control_state));
457 iomemtype = cpu_register_io_memory(0, icp_control_readfn,
458 icp_control_writefn, s);
459 cpu_register_physical_memory(base, 0x00800000, iomemtype);
461 /* ??? Save/restore. */
467 static void integratorcp_init(int ram_size, int vga_ram_size,
468 const char *boot_device, DisplayState *ds,
469 const char **fd_filename, int snapshot,
470 const char *kernel_filename, const char *kernel_cmdline,
471 const char *initrd_filename, const char *cpu_model)
474 uint32_t bios_offset;
479 cpu_model = "arm926";
480 env = cpu_init(cpu_model);
482 fprintf(stderr, "Unable to find CPU definition\n");
485 bios_offset = ram_size + vga_ram_size;
486 /* ??? On a real system the first 1Mb is mapped as SSRAM or boot flash. */
487 /* ??? RAM shoud repeat to fill physical memory space. */
488 /* SDRAM at address zero*/
489 cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
490 /* And again at address 0x80000000 */
491 cpu_register_physical_memory(0x80000000, ram_size, IO_MEM_RAM);
493 integratorcm_init(ram_size >> 20, bios_offset);
494 cpu_pic = arm_pic_init_cpu(env);
495 pic = icp_pic_init(0x14000000, cpu_pic[ARM_PIC_CPU_IRQ],
496 cpu_pic[ARM_PIC_CPU_FIQ]);
497 icp_pic_init(0xca000000, pic[26], NULL);
498 icp_pit_init(0x13000000, pic, 5);
499 pl031_init(0x15000000, pic[8]);
500 pl011_init(0x16000000, pic[1], serial_hds[0], PL011_ARM);
501 pl011_init(0x17000000, pic[2], serial_hds[1], PL011_ARM);
502 icp_control_init(0xcb000000);
503 pl050_init(0x18000000, pic[3], 0);
504 pl050_init(0x19000000, pic[4], 1);
505 pl181_init(0x1c000000, sd_bdrv, pic[23], pic[24]);
506 if (nd_table[0].vlan) {
507 if (nd_table[0].model == NULL
508 || strcmp(nd_table[0].model, "smc91c111") == 0) {
509 smc91c111_init(&nd_table[0], 0xc8000000, pic[27]);
510 } else if (strcmp(nd_table[0].model, "?") == 0) {
511 fprintf(stderr, "qemu: Supported NICs: smc91c111\n");
514 fprintf(stderr, "qemu: Unsupported NIC: %s\n", nd_table[0].model);
518 pl110_init(ds, 0xc0000000, pic[22], 0);
520 arm_load_kernel(env, ram_size, kernel_filename, kernel_cmdline,
521 initrd_filename, 0x113, 0x0);
524 QEMUMachine integratorcp_machine = {
526 "ARM Integrator/CP (ARM926EJ-S)",