xref: /openbmc/qemu/hw/arm/npcm7xx.c (revision 73b49878)
1 /*
2  * Nuvoton NPCM7xx SoC family.
3  *
4  * Copyright 2020 Google LLC
5  *
6  * This program is free software; you can redistribute it and/or modify it
7  * under the terms of the GNU General Public License as published by the
8  * Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful, but WITHOUT
12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14  * for more details.
15  */
16 
17 #include "qemu/osdep.h"
18 
19 #include "hw/arm/boot.h"
20 #include "hw/arm/npcm7xx.h"
21 #include "hw/char/serial.h"
22 #include "hw/loader.h"
23 #include "hw/misc/unimp.h"
24 #include "hw/qdev-clock.h"
25 #include "hw/qdev-properties.h"
26 #include "qapi/error.h"
27 #include "qemu/units.h"
28 #include "sysemu/sysemu.h"
29 #include "target/arm/cpu-qom.h"
30 
31 /*
32  * This covers the whole MMIO space. We'll use this to catch any MMIO accesses
33  * that aren't handled by any device.
34  */
35 #define NPCM7XX_MMIO_BA         (0x80000000)
36 #define NPCM7XX_MMIO_SZ         (0x7ffd0000)
37 
38 /* OTP key storage and fuse strap array */
39 #define NPCM7XX_OTP1_BA         (0xf0189000)
40 #define NPCM7XX_OTP2_BA         (0xf018a000)
41 
42 /* Core system modules. */
43 #define NPCM7XX_L2C_BA          (0xf03fc000)
44 #define NPCM7XX_CPUP_BA         (0xf03fe000)
45 #define NPCM7XX_GCR_BA          (0xf0800000)
46 #define NPCM7XX_CLK_BA          (0xf0801000)
47 #define NPCM7XX_MC_BA           (0xf0824000)
48 #define NPCM7XX_RNG_BA          (0xf000b000)
49 
50 /* USB Host modules */
51 #define NPCM7XX_EHCI_BA         (0xf0806000)
52 #define NPCM7XX_OHCI_BA         (0xf0807000)
53 
54 /* ADC Module */
55 #define NPCM7XX_ADC_BA          (0xf000c000)
56 
57 /* Internal AHB SRAM */
58 #define NPCM7XX_RAM3_BA         (0xc0008000)
59 #define NPCM7XX_RAM3_SZ         (4 * KiB)
60 
61 /* Memory blocks at the end of the address space */
62 #define NPCM7XX_RAM2_BA         (0xfffd0000)
63 #define NPCM7XX_RAM2_SZ         (128 * KiB)
64 #define NPCM7XX_ROM_BA          (0xffff0000)
65 #define NPCM7XX_ROM_SZ          (64 * KiB)
66 
67 /* SDHCI Modules */
68 #define NPCM7XX_MMC_BA          (0xf0842000)
69 
70 /* Clock configuration values to be fixed up when bypassing bootloader */
71 
72 /* Run PLL1 at 1600 MHz */
73 #define NPCM7XX_PLLCON1_FIXUP_VAL   (0x00402101)
74 /* Run the CPU from PLL1 and UART from PLL2 */
75 #define NPCM7XX_CLKSEL_FIXUP_VAL    (0x004aaba9)
76 
77 /*
78  * Interrupt lines going into the GIC. This does not include internal Cortex-A9
79  * interrupts.
80  */
81 enum NPCM7xxInterrupt {
82     NPCM7XX_ADC_IRQ             = 0,
83     NPCM7XX_UART0_IRQ           = 2,
84     NPCM7XX_UART1_IRQ,
85     NPCM7XX_UART2_IRQ,
86     NPCM7XX_UART3_IRQ,
87     NPCM7XX_EMC1RX_IRQ          = 15,
88     NPCM7XX_EMC1TX_IRQ,
89     NPCM7XX_MMC_IRQ             = 26,
90     NPCM7XX_PSPI2_IRQ           = 28,
91     NPCM7XX_PSPI1_IRQ           = 31,
92     NPCM7XX_TIMER0_IRQ          = 32,   /* Timer Module 0 */
93     NPCM7XX_TIMER1_IRQ,
94     NPCM7XX_TIMER2_IRQ,
95     NPCM7XX_TIMER3_IRQ,
96     NPCM7XX_TIMER4_IRQ,
97     NPCM7XX_TIMER5_IRQ,                 /* Timer Module 1 */
98     NPCM7XX_TIMER6_IRQ,
99     NPCM7XX_TIMER7_IRQ,
100     NPCM7XX_TIMER8_IRQ,
101     NPCM7XX_TIMER9_IRQ,
102     NPCM7XX_TIMER10_IRQ,                /* Timer Module 2 */
103     NPCM7XX_TIMER11_IRQ,
104     NPCM7XX_TIMER12_IRQ,
105     NPCM7XX_TIMER13_IRQ,
106     NPCM7XX_TIMER14_IRQ,
107     NPCM7XX_WDG0_IRQ            = 47,   /* Timer Module 0 Watchdog */
108     NPCM7XX_WDG1_IRQ,                   /* Timer Module 1 Watchdog */
109     NPCM7XX_WDG2_IRQ,                   /* Timer Module 2 Watchdog */
110     NPCM7XX_EHCI_IRQ            = 61,
111     NPCM7XX_OHCI_IRQ            = 62,
112     NPCM7XX_SMBUS0_IRQ          = 64,
113     NPCM7XX_SMBUS1_IRQ,
114     NPCM7XX_SMBUS2_IRQ,
115     NPCM7XX_SMBUS3_IRQ,
116     NPCM7XX_SMBUS4_IRQ,
117     NPCM7XX_SMBUS5_IRQ,
118     NPCM7XX_SMBUS6_IRQ,
119     NPCM7XX_SMBUS7_IRQ,
120     NPCM7XX_SMBUS8_IRQ,
121     NPCM7XX_SMBUS9_IRQ,
122     NPCM7XX_SMBUS10_IRQ,
123     NPCM7XX_SMBUS11_IRQ,
124     NPCM7XX_SMBUS12_IRQ,
125     NPCM7XX_SMBUS13_IRQ,
126     NPCM7XX_SMBUS14_IRQ,
127     NPCM7XX_SMBUS15_IRQ,
128     NPCM7XX_PWM0_IRQ            = 93,   /* PWM module 0 */
129     NPCM7XX_PWM1_IRQ,                   /* PWM module 1 */
130     NPCM7XX_MFT0_IRQ            = 96,   /* MFT module 0 */
131     NPCM7XX_MFT1_IRQ,                   /* MFT module 1 */
132     NPCM7XX_MFT2_IRQ,                   /* MFT module 2 */
133     NPCM7XX_MFT3_IRQ,                   /* MFT module 3 */
134     NPCM7XX_MFT4_IRQ,                   /* MFT module 4 */
135     NPCM7XX_MFT5_IRQ,                   /* MFT module 5 */
136     NPCM7XX_MFT6_IRQ,                   /* MFT module 6 */
137     NPCM7XX_MFT7_IRQ,                   /* MFT module 7 */
138     NPCM7XX_EMC2RX_IRQ          = 114,
139     NPCM7XX_EMC2TX_IRQ,
140     NPCM7XX_GPIO0_IRQ           = 116,
141     NPCM7XX_GPIO1_IRQ,
142     NPCM7XX_GPIO2_IRQ,
143     NPCM7XX_GPIO3_IRQ,
144     NPCM7XX_GPIO4_IRQ,
145     NPCM7XX_GPIO5_IRQ,
146     NPCM7XX_GPIO6_IRQ,
147     NPCM7XX_GPIO7_IRQ,
148 };
149 
150 /* Total number of GIC interrupts, including internal Cortex-A9 interrupts. */
151 #define NPCM7XX_NUM_IRQ         (160)
152 
153 /* Register base address for each Timer Module */
154 static const hwaddr npcm7xx_tim_addr[] = {
155     0xf0008000,
156     0xf0009000,
157     0xf000a000,
158 };
159 
160 /* Register base address for each 16550 UART */
161 static const hwaddr npcm7xx_uart_addr[] = {
162     0xf0001000,
163     0xf0002000,
164     0xf0003000,
165     0xf0004000,
166 };
167 
168 /* Direct memory-mapped access to SPI0 CS0-1. */
169 static const hwaddr npcm7xx_fiu0_flash_addr[] = {
170     0x80000000, /* CS0 */
171     0x88000000, /* CS1 */
172 };
173 
174 /* Direct memory-mapped access to SPI3 CS0-3. */
175 static const hwaddr npcm7xx_fiu3_flash_addr[] = {
176     0xa0000000, /* CS0 */
177     0xa8000000, /* CS1 */
178     0xb0000000, /* CS2 */
179     0xb8000000, /* CS3 */
180 };
181 
182 /* Register base address for each PWM Module */
183 static const hwaddr npcm7xx_pwm_addr[] = {
184     0xf0103000,
185     0xf0104000,
186 };
187 
188 /* Register base address for each MFT Module */
189 static const hwaddr npcm7xx_mft_addr[] = {
190     0xf0180000,
191     0xf0181000,
192     0xf0182000,
193     0xf0183000,
194     0xf0184000,
195     0xf0185000,
196     0xf0186000,
197     0xf0187000,
198 };
199 
200 /* Direct memory-mapped access to each SMBus Module. */
201 static const hwaddr npcm7xx_smbus_addr[] = {
202     0xf0080000,
203     0xf0081000,
204     0xf0082000,
205     0xf0083000,
206     0xf0084000,
207     0xf0085000,
208     0xf0086000,
209     0xf0087000,
210     0xf0088000,
211     0xf0089000,
212     0xf008a000,
213     0xf008b000,
214     0xf008c000,
215     0xf008d000,
216     0xf008e000,
217     0xf008f000,
218 };
219 
220 /* Register base address for each EMC Module */
221 static const hwaddr npcm7xx_emc_addr[] = {
222     0xf0825000,
223     0xf0826000,
224 };
225 
226 /* Register base address for each PSPI Module */
227 static const hwaddr npcm7xx_pspi_addr[] = {
228     0xf0200000,
229     0xf0201000,
230 };
231 
232 static const struct {
233     hwaddr regs_addr;
234     uint32_t unconnected_pins;
235     uint32_t reset_pu;
236     uint32_t reset_pd;
237     uint32_t reset_osrc;
238     uint32_t reset_odsc;
239 } npcm7xx_gpio[] = {
240     {
241         .regs_addr = 0xf0010000,
242         .reset_pu = 0xff03ffff,
243         .reset_pd = 0x00fc0000,
244     }, {
245         .regs_addr = 0xf0011000,
246         .unconnected_pins = 0x0000001e,
247         .reset_pu = 0xfefffe07,
248         .reset_pd = 0x010001e0,
249     }, {
250         .regs_addr = 0xf0012000,
251         .reset_pu = 0x780fffff,
252         .reset_pd = 0x07f00000,
253         .reset_odsc = 0x00700000,
254     }, {
255         .regs_addr = 0xf0013000,
256         .reset_pu = 0x00fc0000,
257         .reset_pd = 0xff000000,
258     }, {
259         .regs_addr = 0xf0014000,
260         .reset_pu = 0xffffffff,
261     }, {
262         .regs_addr = 0xf0015000,
263         .reset_pu = 0xbf83f801,
264         .reset_pd = 0x007c0000,
265         .reset_osrc = 0x000000f1,
266         .reset_odsc = 0x3f9f80f1,
267     }, {
268         .regs_addr = 0xf0016000,
269         .reset_pu = 0xfc00f801,
270         .reset_pd = 0x000007fe,
271         .reset_odsc = 0x00000800,
272     }, {
273         .regs_addr = 0xf0017000,
274         .unconnected_pins = 0xffffff00,
275         .reset_pu = 0x0000007f,
276         .reset_osrc = 0x0000007f,
277         .reset_odsc = 0x0000007f,
278     },
279 };
280 
281 static const struct {
282     const char *name;
283     hwaddr regs_addr;
284     int cs_count;
285     const hwaddr *flash_addr;
286 } npcm7xx_fiu[] = {
287     {
288         .name = "fiu0",
289         .regs_addr = 0xfb000000,
290         .cs_count = ARRAY_SIZE(npcm7xx_fiu0_flash_addr),
291         .flash_addr = npcm7xx_fiu0_flash_addr,
292     }, {
293         .name = "fiu3",
294         .regs_addr = 0xc0000000,
295         .cs_count = ARRAY_SIZE(npcm7xx_fiu3_flash_addr),
296         .flash_addr = npcm7xx_fiu3_flash_addr,
297     },
298 };
299 
300 static void npcm7xx_write_board_setup(ARMCPU *cpu,
301                                       const struct arm_boot_info *info)
302 {
303     uint32_t board_setup[] = {
304         0xe59f0010,     /* ldr r0, clk_base_addr */
305         0xe59f1010,     /* ldr r1, pllcon1_value */
306         0xe5801010,     /* str r1, [r0, #16] */
307         0xe59f100c,     /* ldr r1, clksel_value */
308         0xe5801004,     /* str r1, [r0, #4] */
309         0xe12fff1e,     /* bx lr */
310         NPCM7XX_CLK_BA,
311         NPCM7XX_PLLCON1_FIXUP_VAL,
312         NPCM7XX_CLKSEL_FIXUP_VAL,
313     };
314     int i;
315 
316     for (i = 0; i < ARRAY_SIZE(board_setup); i++) {
317         board_setup[i] = tswap32(board_setup[i]);
318     }
319     rom_add_blob_fixed("board-setup", board_setup, sizeof(board_setup),
320                        info->board_setup_addr);
321 }
322 
323 static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
324                                          const struct arm_boot_info *info)
325 {
326     /*
327      * The default smpboot stub halts the secondary CPU with a 'wfi'
328      * instruction, but the arch/arm/mach-npcm/platsmp.c in the Linux kernel
329      * does not send an IPI to wake it up, so the second CPU fails to boot. So
330      * we need to provide our own smpboot stub that can not use 'wfi', it has
331      * to spin the secondary CPU until the first CPU writes to the SCRPAD reg.
332      */
333     uint32_t smpboot[] = {
334         0xe59f2018,     /* ldr r2, bootreg_addr */
335         0xe3a00000,     /* mov r0, #0 */
336         0xe5820000,     /* str r0, [r2] */
337         0xe320f002,     /* wfe */
338         0xe5921000,     /* ldr r1, [r2] */
339         0xe1110001,     /* tst r1, r1 */
340         0x0afffffb,     /* beq <wfe> */
341         0xe12fff11,     /* bx r1 */
342         NPCM7XX_SMP_BOOTREG_ADDR,
343     };
344     int i;
345 
346     for (i = 0; i < ARRAY_SIZE(smpboot); i++) {
347         smpboot[i] = tswap32(smpboot[i]);
348     }
349 
350     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
351                        NPCM7XX_SMP_LOADER_START);
352 }
353 
354 static struct arm_boot_info npcm7xx_binfo = {
355     .loader_start           = NPCM7XX_LOADER_START,
356     .smp_loader_start       = NPCM7XX_SMP_LOADER_START,
357     .smp_bootreg_addr       = NPCM7XX_SMP_BOOTREG_ADDR,
358     .gic_cpu_if_addr        = NPCM7XX_GIC_CPU_IF_ADDR,
359     .write_secondary_boot   = npcm7xx_write_secondary_boot,
360     .board_id               = -1,
361     .board_setup_addr       = NPCM7XX_BOARD_SETUP_ADDR,
362     .write_board_setup      = npcm7xx_write_board_setup,
363 };
364 
365 void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc)
366 {
367     npcm7xx_binfo.ram_size = machine->ram_size;
368 
369     arm_load_kernel(&soc->cpu[0], machine, &npcm7xx_binfo);
370 }
371 
372 static void npcm7xx_init_fuses(NPCM7xxState *s)
373 {
374     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
375     uint32_t value;
376 
377     /*
378      * The initial mask of disabled modules indicates the chip derivative (e.g.
379      * NPCM750 or NPCM730).
380      */
381     value = tswap32(nc->disabled_modules);
382     npcm7xx_otp_array_write(&s->fuse_array, &value, NPCM7XX_FUSE_DERIVATIVE,
383                             sizeof(value));
384 }
385 
386 static void npcm7xx_write_adc_calibration(NPCM7xxState *s)
387 {
388     /* Both ADC and the fuse array must have realized. */
389     QEMU_BUILD_BUG_ON(sizeof(s->adc.calibration_r_values) != 4);
390     npcm7xx_otp_array_write(&s->fuse_array, s->adc.calibration_r_values,
391             NPCM7XX_FUSE_ADC_CALIB, sizeof(s->adc.calibration_r_values));
392 }
393 
394 static qemu_irq npcm7xx_irq(NPCM7xxState *s, int n)
395 {
396     return qdev_get_gpio_in(DEVICE(&s->a9mpcore), n);
397 }
398 
399 static void npcm7xx_init(Object *obj)
400 {
401     NPCM7xxState *s = NPCM7XX(obj);
402     int i;
403 
404     for (i = 0; i < NPCM7XX_MAX_NUM_CPUS; i++) {
405         object_initialize_child(obj, "cpu[*]", &s->cpu[i],
406                                 ARM_CPU_TYPE_NAME("cortex-a9"));
407     }
408 
409     object_initialize_child(obj, "a9mpcore", &s->a9mpcore, TYPE_A9MPCORE_PRIV);
410     object_initialize_child(obj, "gcr", &s->gcr, TYPE_NPCM7XX_GCR);
411     object_property_add_alias(obj, "power-on-straps", OBJECT(&s->gcr),
412                               "power-on-straps");
413     object_initialize_child(obj, "clk", &s->clk, TYPE_NPCM7XX_CLK);
414     object_initialize_child(obj, "otp1", &s->key_storage,
415                             TYPE_NPCM7XX_KEY_STORAGE);
416     object_initialize_child(obj, "otp2", &s->fuse_array,
417                             TYPE_NPCM7XX_FUSE_ARRAY);
418     object_initialize_child(obj, "mc", &s->mc, TYPE_NPCM7XX_MC);
419     object_initialize_child(obj, "rng", &s->rng, TYPE_NPCM7XX_RNG);
420     object_initialize_child(obj, "adc", &s->adc, TYPE_NPCM7XX_ADC);
421 
422     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
423         object_initialize_child(obj, "tim[*]", &s->tim[i], TYPE_NPCM7XX_TIMER);
424     }
425 
426     for (i = 0; i < ARRAY_SIZE(s->gpio); i++) {
427         object_initialize_child(obj, "gpio[*]", &s->gpio[i], TYPE_NPCM7XX_GPIO);
428     }
429 
430     for (i = 0; i < ARRAY_SIZE(s->smbus); i++) {
431         object_initialize_child(obj, "smbus[*]", &s->smbus[i],
432                                 TYPE_NPCM7XX_SMBUS);
433     }
434 
435     object_initialize_child(obj, "ehci", &s->ehci, TYPE_NPCM7XX_EHCI);
436     object_initialize_child(obj, "ohci", &s->ohci, TYPE_SYSBUS_OHCI);
437 
438     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
439     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
440         object_initialize_child(obj, npcm7xx_fiu[i].name, &s->fiu[i],
441                                 TYPE_NPCM7XX_FIU);
442     }
443 
444     for (i = 0; i < ARRAY_SIZE(s->pwm); i++) {
445         object_initialize_child(obj, "pwm[*]", &s->pwm[i], TYPE_NPCM7XX_PWM);
446     }
447 
448     for (i = 0; i < ARRAY_SIZE(s->mft); i++) {
449         object_initialize_child(obj, "mft[*]", &s->mft[i], TYPE_NPCM7XX_MFT);
450     }
451 
452     for (i = 0; i < ARRAY_SIZE(s->emc); i++) {
453         object_initialize_child(obj, "emc[*]", &s->emc[i], TYPE_NPCM7XX_EMC);
454     }
455 
456     for (i = 0; i < ARRAY_SIZE(s->pspi); i++) {
457         object_initialize_child(obj, "pspi[*]", &s->pspi[i], TYPE_NPCM_PSPI);
458     }
459 
460     object_initialize_child(obj, "mmc", &s->mmc, TYPE_NPCM7XX_SDHCI);
461 }
462 
463 static void npcm7xx_realize(DeviceState *dev, Error **errp)
464 {
465     NPCM7xxState *s = NPCM7XX(dev);
466     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
467     int i;
468 
469     if (memory_region_size(s->dram) > NPCM7XX_DRAM_SZ) {
470         error_setg(errp, "%s: NPCM7xx cannot address more than %" PRIu64
471                    " MiB of DRAM", __func__, NPCM7XX_DRAM_SZ / MiB);
472         return;
473     }
474 
475     /* CPUs */
476     for (i = 0; i < nc->num_cpus; i++) {
477         object_property_set_int(OBJECT(&s->cpu[i]), "mp-affinity",
478                                 arm_build_mp_affinity(i, NPCM7XX_MAX_NUM_CPUS),
479                                 &error_abort);
480         object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
481                                 NPCM7XX_GIC_CPU_IF_ADDR, &error_abort);
482         object_property_set_bool(OBJECT(&s->cpu[i]), "reset-hivecs", true,
483                                  &error_abort);
484 
485         /* Disable security extensions. */
486         object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3", false,
487                                  &error_abort);
488 
489         if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
490             return;
491         }
492     }
493 
494     /* A9MPCORE peripherals. Can only fail if we pass bad parameters here. */
495     object_property_set_int(OBJECT(&s->a9mpcore), "num-cpu", nc->num_cpus,
496                             &error_abort);
497     object_property_set_int(OBJECT(&s->a9mpcore), "num-irq", NPCM7XX_NUM_IRQ,
498                             &error_abort);
499     sysbus_realize(SYS_BUS_DEVICE(&s->a9mpcore), &error_abort);
500     sysbus_mmio_map(SYS_BUS_DEVICE(&s->a9mpcore), 0, NPCM7XX_CPUP_BA);
501 
502     for (i = 0; i < nc->num_cpus; i++) {
503         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i,
504                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ));
505         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i + nc->num_cpus,
506                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_FIQ));
507     }
508 
509     /* L2 cache controller */
510     sysbus_create_simple("l2x0", NPCM7XX_L2C_BA, NULL);
511 
512     /* System Global Control Registers (GCR). Can fail due to user input. */
513     object_property_set_int(OBJECT(&s->gcr), "disabled-modules",
514                             nc->disabled_modules, &error_abort);
515     object_property_add_const_link(OBJECT(&s->gcr), "dram-mr", OBJECT(s->dram));
516     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gcr), errp)) {
517         return;
518     }
519     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gcr), 0, NPCM7XX_GCR_BA);
520 
521     /* Clock Control Registers (CLK). Cannot fail. */
522     sysbus_realize(SYS_BUS_DEVICE(&s->clk), &error_abort);
523     sysbus_mmio_map(SYS_BUS_DEVICE(&s->clk), 0, NPCM7XX_CLK_BA);
524 
525     /* OTP key storage and fuse strap array. Cannot fail. */
526     sysbus_realize(SYS_BUS_DEVICE(&s->key_storage), &error_abort);
527     sysbus_mmio_map(SYS_BUS_DEVICE(&s->key_storage), 0, NPCM7XX_OTP1_BA);
528     sysbus_realize(SYS_BUS_DEVICE(&s->fuse_array), &error_abort);
529     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fuse_array), 0, NPCM7XX_OTP2_BA);
530     npcm7xx_init_fuses(s);
531 
532     /* Fake Memory Controller (MC). Cannot fail. */
533     sysbus_realize(SYS_BUS_DEVICE(&s->mc), &error_abort);
534     sysbus_mmio_map(SYS_BUS_DEVICE(&s->mc), 0, NPCM7XX_MC_BA);
535 
536     /* ADC Modules. Cannot fail. */
537     qdev_connect_clock_in(DEVICE(&s->adc), "clock", qdev_get_clock_out(
538                           DEVICE(&s->clk), "adc-clock"));
539     sysbus_realize(SYS_BUS_DEVICE(&s->adc), &error_abort);
540     sysbus_mmio_map(SYS_BUS_DEVICE(&s->adc), 0, NPCM7XX_ADC_BA);
541     sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
542             npcm7xx_irq(s, NPCM7XX_ADC_IRQ));
543     npcm7xx_write_adc_calibration(s);
544 
545     /* Timer Modules (TIM). Cannot fail. */
546     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_tim_addr) != ARRAY_SIZE(s->tim));
547     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
548         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->tim[i]);
549         int first_irq;
550         int j;
551 
552         /* Connect the timer clock. */
553         qdev_connect_clock_in(DEVICE(&s->tim[i]), "clock", qdev_get_clock_out(
554                     DEVICE(&s->clk), "timer-clock"));
555 
556         sysbus_realize(sbd, &error_abort);
557         sysbus_mmio_map(sbd, 0, npcm7xx_tim_addr[i]);
558 
559         first_irq = NPCM7XX_TIMER0_IRQ + i * NPCM7XX_TIMERS_PER_CTRL;
560         for (j = 0; j < NPCM7XX_TIMERS_PER_CTRL; j++) {
561             qemu_irq irq = npcm7xx_irq(s, first_irq + j);
562             sysbus_connect_irq(sbd, j, irq);
563         }
564 
565         /* IRQ for watchdogs */
566         sysbus_connect_irq(sbd, NPCM7XX_TIMERS_PER_CTRL,
567                 npcm7xx_irq(s, NPCM7XX_WDG0_IRQ + i));
568         /* GPIO that connects clk module with watchdog */
569         qdev_connect_gpio_out_named(DEVICE(&s->tim[i]),
570                 NPCM7XX_WATCHDOG_RESET_GPIO_OUT, 0,
571                 qdev_get_gpio_in_named(DEVICE(&s->clk),
572                         NPCM7XX_WATCHDOG_RESET_GPIO_IN, i));
573     }
574 
575     /* UART0..3 (16550 compatible) */
576     for (i = 0; i < ARRAY_SIZE(npcm7xx_uart_addr); i++) {
577         serial_mm_init(get_system_memory(), npcm7xx_uart_addr[i], 2,
578                        npcm7xx_irq(s, NPCM7XX_UART0_IRQ + i), 115200,
579                        serial_hd(i), DEVICE_LITTLE_ENDIAN);
580     }
581 
582     /* Random Number Generator. Cannot fail. */
583     sysbus_realize(SYS_BUS_DEVICE(&s->rng), &error_abort);
584     sysbus_mmio_map(SYS_BUS_DEVICE(&s->rng), 0, NPCM7XX_RNG_BA);
585 
586     /* GPIO modules. Cannot fail. */
587     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_gpio) != ARRAY_SIZE(s->gpio));
588     for (i = 0; i < ARRAY_SIZE(s->gpio); i++) {
589         Object *obj = OBJECT(&s->gpio[i]);
590 
591         object_property_set_uint(obj, "reset-pullup",
592                                  npcm7xx_gpio[i].reset_pu, &error_abort);
593         object_property_set_uint(obj, "reset-pulldown",
594                                  npcm7xx_gpio[i].reset_pd, &error_abort);
595         object_property_set_uint(obj, "reset-osrc",
596                                  npcm7xx_gpio[i].reset_osrc, &error_abort);
597         object_property_set_uint(obj, "reset-odsc",
598                                  npcm7xx_gpio[i].reset_odsc, &error_abort);
599         sysbus_realize(SYS_BUS_DEVICE(obj), &error_abort);
600         sysbus_mmio_map(SYS_BUS_DEVICE(obj), 0, npcm7xx_gpio[i].regs_addr);
601         sysbus_connect_irq(SYS_BUS_DEVICE(obj), 0,
602                            npcm7xx_irq(s, NPCM7XX_GPIO0_IRQ + i));
603     }
604 
605     /* SMBus modules. Cannot fail. */
606     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_smbus_addr) != ARRAY_SIZE(s->smbus));
607     for (i = 0; i < ARRAY_SIZE(s->smbus); i++) {
608         Object *obj = OBJECT(&s->smbus[i]);
609 
610         sysbus_realize(SYS_BUS_DEVICE(obj), &error_abort);
611         sysbus_mmio_map(SYS_BUS_DEVICE(obj), 0, npcm7xx_smbus_addr[i]);
612         sysbus_connect_irq(SYS_BUS_DEVICE(obj), 0,
613                            npcm7xx_irq(s, NPCM7XX_SMBUS0_IRQ + i));
614     }
615 
616     /* USB Host */
617     object_property_set_bool(OBJECT(&s->ehci), "companion-enable", true,
618                              &error_abort);
619     sysbus_realize(SYS_BUS_DEVICE(&s->ehci), &error_abort);
620     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci), 0, NPCM7XX_EHCI_BA);
621     sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci), 0,
622                        npcm7xx_irq(s, NPCM7XX_EHCI_IRQ));
623 
624     object_property_set_str(OBJECT(&s->ohci), "masterbus", "usb-bus.0",
625                             &error_abort);
626     object_property_set_uint(OBJECT(&s->ohci), "num-ports", 1, &error_abort);
627     sysbus_realize(SYS_BUS_DEVICE(&s->ohci), &error_abort);
628     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci), 0, NPCM7XX_OHCI_BA);
629     sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci), 0,
630                        npcm7xx_irq(s, NPCM7XX_OHCI_IRQ));
631 
632     /* PWM Modules. Cannot fail. */
633     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_pwm_addr) != ARRAY_SIZE(s->pwm));
634     for (i = 0; i < ARRAY_SIZE(s->pwm); i++) {
635         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->pwm[i]);
636 
637         qdev_connect_clock_in(DEVICE(&s->pwm[i]), "clock", qdev_get_clock_out(
638                     DEVICE(&s->clk), "apb3-clock"));
639         sysbus_realize(sbd, &error_abort);
640         sysbus_mmio_map(sbd, 0, npcm7xx_pwm_addr[i]);
641         sysbus_connect_irq(sbd, i, npcm7xx_irq(s, NPCM7XX_PWM0_IRQ + i));
642     }
643 
644     /* MFT Modules. Cannot fail. */
645     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_mft_addr) != ARRAY_SIZE(s->mft));
646     for (i = 0; i < ARRAY_SIZE(s->mft); i++) {
647         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->mft[i]);
648 
649         qdev_connect_clock_in(DEVICE(&s->mft[i]), "clock-in",
650                               qdev_get_clock_out(DEVICE(&s->clk),
651                                                  "apb4-clock"));
652         sysbus_realize(sbd, &error_abort);
653         sysbus_mmio_map(sbd, 0, npcm7xx_mft_addr[i]);
654         sysbus_connect_irq(sbd, 0, npcm7xx_irq(s, NPCM7XX_MFT0_IRQ + i));
655     }
656 
657     /*
658      * EMC Modules. Cannot fail.
659      * The mapping of the device to its netdev backend works as follows:
660      * emc[i] = nd_table[i]
661      * This works around the inability to specify the netdev property for the
662      * emc device: it's not pluggable and thus the -device option can't be
663      * used.
664      */
665     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_emc_addr) != ARRAY_SIZE(s->emc));
666     QEMU_BUILD_BUG_ON(ARRAY_SIZE(s->emc) != 2);
667     for (i = 0; i < ARRAY_SIZE(s->emc); i++) {
668         s->emc[i].emc_num = i;
669         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->emc[i]);
670         if (nd_table[i].used) {
671             qemu_check_nic_model(&nd_table[i], TYPE_NPCM7XX_EMC);
672             qdev_set_nic_properties(DEVICE(sbd), &nd_table[i]);
673         }
674         /*
675          * The device exists regardless of whether it's connected to a QEMU
676          * netdev backend. So always instantiate it even if there is no
677          * backend.
678          */
679         sysbus_realize(sbd, &error_abort);
680         sysbus_mmio_map(sbd, 0, npcm7xx_emc_addr[i]);
681         int tx_irq = i == 0 ? NPCM7XX_EMC1TX_IRQ : NPCM7XX_EMC2TX_IRQ;
682         int rx_irq = i == 0 ? NPCM7XX_EMC1RX_IRQ : NPCM7XX_EMC2RX_IRQ;
683         /*
684          * N.B. The values for the second argument sysbus_connect_irq are
685          * chosen to match the registration order in npcm7xx_emc_realize.
686          */
687         sysbus_connect_irq(sbd, 0, npcm7xx_irq(s, tx_irq));
688         sysbus_connect_irq(sbd, 1, npcm7xx_irq(s, rx_irq));
689     }
690 
691     /*
692      * Flash Interface Unit (FIU). Can fail if incorrect number of chip selects
693      * specified, but this is a programming error.
694      */
695     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
696     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
697         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->fiu[i]);
698         int j;
699 
700         object_property_set_int(OBJECT(sbd), "cs-count",
701                                 npcm7xx_fiu[i].cs_count, &error_abort);
702         sysbus_realize(sbd, &error_abort);
703 
704         sysbus_mmio_map(sbd, 0, npcm7xx_fiu[i].regs_addr);
705         for (j = 0; j < npcm7xx_fiu[i].cs_count; j++) {
706             sysbus_mmio_map(sbd, j + 1, npcm7xx_fiu[i].flash_addr[j]);
707         }
708     }
709 
710     /* RAM2 (SRAM) */
711     memory_region_init_ram(&s->sram, OBJECT(dev), "ram2",
712                            NPCM7XX_RAM2_SZ, &error_abort);
713     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM2_BA, &s->sram);
714 
715     /* RAM3 (SRAM) */
716     memory_region_init_ram(&s->ram3, OBJECT(dev), "ram3",
717                            NPCM7XX_RAM3_SZ, &error_abort);
718     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM3_BA, &s->ram3);
719 
720     /* Internal ROM */
721     memory_region_init_rom(&s->irom, OBJECT(dev), "irom", NPCM7XX_ROM_SZ,
722                            &error_abort);
723     memory_region_add_subregion(get_system_memory(), NPCM7XX_ROM_BA, &s->irom);
724 
725     /* SDHCI */
726     sysbus_realize(SYS_BUS_DEVICE(&s->mmc), &error_abort);
727     sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc), 0, NPCM7XX_MMC_BA);
728     sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc), 0,
729             npcm7xx_irq(s, NPCM7XX_MMC_IRQ));
730 
731     /* PSPI */
732     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_pspi_addr) != ARRAY_SIZE(s->pspi));
733     for (i = 0; i < ARRAY_SIZE(s->pspi); i++) {
734         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->pspi[i]);
735         int irq = (i == 0) ? NPCM7XX_PSPI1_IRQ : NPCM7XX_PSPI2_IRQ;
736 
737         sysbus_realize(sbd, &error_abort);
738         sysbus_mmio_map(sbd, 0, npcm7xx_pspi_addr[i]);
739         sysbus_connect_irq(sbd, 0, npcm7xx_irq(s, irq));
740     }
741 
742     create_unimplemented_device("npcm7xx.shm",          0xc0001000,   4 * KiB);
743     create_unimplemented_device("npcm7xx.vdmx",         0xe0800000,   4 * KiB);
744     create_unimplemented_device("npcm7xx.pcierc",       0xe1000000,  64 * KiB);
745     create_unimplemented_device("npcm7xx.kcs",          0xf0007000,   4 * KiB);
746     create_unimplemented_device("npcm7xx.gfxi",         0xf000e000,   4 * KiB);
747     create_unimplemented_device("npcm7xx.espi",         0xf009f000,   4 * KiB);
748     create_unimplemented_device("npcm7xx.peci",         0xf0100000,   4 * KiB);
749     create_unimplemented_device("npcm7xx.siox[1]",      0xf0101000,   4 * KiB);
750     create_unimplemented_device("npcm7xx.siox[2]",      0xf0102000,   4 * KiB);
751     create_unimplemented_device("npcm7xx.ahbpci",       0xf0400000,   1 * MiB);
752     create_unimplemented_device("npcm7xx.mcphy",        0xf05f0000,  64 * KiB);
753     create_unimplemented_device("npcm7xx.gmac1",        0xf0802000,   8 * KiB);
754     create_unimplemented_device("npcm7xx.gmac2",        0xf0804000,   8 * KiB);
755     create_unimplemented_device("npcm7xx.vcd",          0xf0810000,  64 * KiB);
756     create_unimplemented_device("npcm7xx.ece",          0xf0820000,   8 * KiB);
757     create_unimplemented_device("npcm7xx.vdma",         0xf0822000,   8 * KiB);
758     create_unimplemented_device("npcm7xx.usbd[0]",      0xf0830000,   4 * KiB);
759     create_unimplemented_device("npcm7xx.usbd[1]",      0xf0831000,   4 * KiB);
760     create_unimplemented_device("npcm7xx.usbd[2]",      0xf0832000,   4 * KiB);
761     create_unimplemented_device("npcm7xx.usbd[3]",      0xf0833000,   4 * KiB);
762     create_unimplemented_device("npcm7xx.usbd[4]",      0xf0834000,   4 * KiB);
763     create_unimplemented_device("npcm7xx.usbd[5]",      0xf0835000,   4 * KiB);
764     create_unimplemented_device("npcm7xx.usbd[6]",      0xf0836000,   4 * KiB);
765     create_unimplemented_device("npcm7xx.usbd[7]",      0xf0837000,   4 * KiB);
766     create_unimplemented_device("npcm7xx.usbd[8]",      0xf0838000,   4 * KiB);
767     create_unimplemented_device("npcm7xx.usbd[9]",      0xf0839000,   4 * KiB);
768     create_unimplemented_device("npcm7xx.sd",           0xf0840000,   8 * KiB);
769     create_unimplemented_device("npcm7xx.pcimbx",       0xf0848000, 512 * KiB);
770     create_unimplemented_device("npcm7xx.aes",          0xf0858000,   4 * KiB);
771     create_unimplemented_device("npcm7xx.des",          0xf0859000,   4 * KiB);
772     create_unimplemented_device("npcm7xx.sha",          0xf085a000,   4 * KiB);
773     create_unimplemented_device("npcm7xx.secacc",       0xf085b000,   4 * KiB);
774     create_unimplemented_device("npcm7xx.spixcs0",      0xf8000000,  16 * MiB);
775     create_unimplemented_device("npcm7xx.spixcs1",      0xf9000000,  16 * MiB);
776     create_unimplemented_device("npcm7xx.spix",         0xfb001000,   4 * KiB);
777 }
778 
779 static Property npcm7xx_properties[] = {
780     DEFINE_PROP_LINK("dram-mr", NPCM7xxState, dram, TYPE_MEMORY_REGION,
781                      MemoryRegion *),
782     DEFINE_PROP_END_OF_LIST(),
783 };
784 
785 static void npcm7xx_class_init(ObjectClass *oc, void *data)
786 {
787     DeviceClass *dc = DEVICE_CLASS(oc);
788 
789     dc->realize = npcm7xx_realize;
790     dc->user_creatable = false;
791     device_class_set_props(dc, npcm7xx_properties);
792 }
793 
794 static void npcm730_class_init(ObjectClass *oc, void *data)
795 {
796     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
797 
798     /* NPCM730 is optimized for data center use, so no graphics, etc. */
799     nc->disabled_modules = 0x00300395;
800     nc->num_cpus = 2;
801 }
802 
803 static void npcm750_class_init(ObjectClass *oc, void *data)
804 {
805     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
806 
807     /* NPCM750 has 2 cores and a full set of peripherals */
808     nc->disabled_modules = 0x00000000;
809     nc->num_cpus = 2;
810 }
811 
812 static const TypeInfo npcm7xx_soc_types[] = {
813     {
814         .name           = TYPE_NPCM7XX,
815         .parent         = TYPE_DEVICE,
816         .instance_size  = sizeof(NPCM7xxState),
817         .instance_init  = npcm7xx_init,
818         .class_size     = sizeof(NPCM7xxClass),
819         .class_init     = npcm7xx_class_init,
820         .abstract       = true,
821     }, {
822         .name           = TYPE_NPCM730,
823         .parent         = TYPE_NPCM7XX,
824         .class_init     = npcm730_class_init,
825     }, {
826         .name           = TYPE_NPCM750,
827         .parent         = TYPE_NPCM7XX,
828         .class_init     = npcm750_class_init,
829     },
830 };
831 
832 DEFINE_TYPES(npcm7xx_soc_types);
833