xref: /openbmc/qemu/hw/arm/npcm7xx.c (revision 2182e405)
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 "exec/address-spaces.h"
20 #include "hw/arm/boot.h"
21 #include "hw/arm/npcm7xx.h"
22 #include "hw/char/serial.h"
23 #include "hw/loader.h"
24 #include "hw/misc/unimp.h"
25 #include "hw/qdev-clock.h"
26 #include "hw/qdev-properties.h"
27 #include "qapi/error.h"
28 #include "qemu/units.h"
29 #include "sysemu/sysemu.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 
68 /* Clock configuration values to be fixed up when bypassing bootloader */
69 
70 /* Run PLL1 at 1600 MHz */
71 #define NPCM7XX_PLLCON1_FIXUP_VAL   (0x00402101)
72 /* Run the CPU from PLL1 and UART from PLL2 */
73 #define NPCM7XX_CLKSEL_FIXUP_VAL    (0x004aaba9)
74 
75 /*
76  * Interrupt lines going into the GIC. This does not include internal Cortex-A9
77  * interrupts.
78  */
79 enum NPCM7xxInterrupt {
80     NPCM7XX_ADC_IRQ             = 0,
81     NPCM7XX_UART0_IRQ           = 2,
82     NPCM7XX_UART1_IRQ,
83     NPCM7XX_UART2_IRQ,
84     NPCM7XX_UART3_IRQ,
85     NPCM7XX_TIMER0_IRQ          = 32,   /* Timer Module 0 */
86     NPCM7XX_TIMER1_IRQ,
87     NPCM7XX_TIMER2_IRQ,
88     NPCM7XX_TIMER3_IRQ,
89     NPCM7XX_TIMER4_IRQ,
90     NPCM7XX_TIMER5_IRQ,                 /* Timer Module 1 */
91     NPCM7XX_TIMER6_IRQ,
92     NPCM7XX_TIMER7_IRQ,
93     NPCM7XX_TIMER8_IRQ,
94     NPCM7XX_TIMER9_IRQ,
95     NPCM7XX_TIMER10_IRQ,                /* Timer Module 2 */
96     NPCM7XX_TIMER11_IRQ,
97     NPCM7XX_TIMER12_IRQ,
98     NPCM7XX_TIMER13_IRQ,
99     NPCM7XX_TIMER14_IRQ,
100     NPCM7XX_WDG0_IRQ            = 47,   /* Timer Module 0 Watchdog */
101     NPCM7XX_WDG1_IRQ,                   /* Timer Module 1 Watchdog */
102     NPCM7XX_WDG2_IRQ,                   /* Timer Module 2 Watchdog */
103     NPCM7XX_EHCI_IRQ            = 61,
104     NPCM7XX_OHCI_IRQ            = 62,
105     NPCM7XX_SMBUS0_IRQ          = 64,
106     NPCM7XX_SMBUS1_IRQ,
107     NPCM7XX_SMBUS2_IRQ,
108     NPCM7XX_SMBUS3_IRQ,
109     NPCM7XX_SMBUS4_IRQ,
110     NPCM7XX_SMBUS5_IRQ,
111     NPCM7XX_SMBUS6_IRQ,
112     NPCM7XX_SMBUS7_IRQ,
113     NPCM7XX_SMBUS8_IRQ,
114     NPCM7XX_SMBUS9_IRQ,
115     NPCM7XX_SMBUS10_IRQ,
116     NPCM7XX_SMBUS11_IRQ,
117     NPCM7XX_SMBUS12_IRQ,
118     NPCM7XX_SMBUS13_IRQ,
119     NPCM7XX_SMBUS14_IRQ,
120     NPCM7XX_SMBUS15_IRQ,
121     NPCM7XX_PWM0_IRQ            = 93,   /* PWM module 0 */
122     NPCM7XX_PWM1_IRQ,                   /* PWM module 1 */
123     NPCM7XX_GPIO0_IRQ           = 116,
124     NPCM7XX_GPIO1_IRQ,
125     NPCM7XX_GPIO2_IRQ,
126     NPCM7XX_GPIO3_IRQ,
127     NPCM7XX_GPIO4_IRQ,
128     NPCM7XX_GPIO5_IRQ,
129     NPCM7XX_GPIO6_IRQ,
130     NPCM7XX_GPIO7_IRQ,
131 };
132 
133 /* Total number of GIC interrupts, including internal Cortex-A9 interrupts. */
134 #define NPCM7XX_NUM_IRQ         (160)
135 
136 /* Register base address for each Timer Module */
137 static const hwaddr npcm7xx_tim_addr[] = {
138     0xf0008000,
139     0xf0009000,
140     0xf000a000,
141 };
142 
143 /* Register base address for each 16550 UART */
144 static const hwaddr npcm7xx_uart_addr[] = {
145     0xf0001000,
146     0xf0002000,
147     0xf0003000,
148     0xf0004000,
149 };
150 
151 /* Direct memory-mapped access to SPI0 CS0-1. */
152 static const hwaddr npcm7xx_fiu0_flash_addr[] = {
153     0x80000000, /* CS0 */
154     0x88000000, /* CS1 */
155 };
156 
157 /* Direct memory-mapped access to SPI3 CS0-3. */
158 static const hwaddr npcm7xx_fiu3_flash_addr[] = {
159     0xa0000000, /* CS0 */
160     0xa8000000, /* CS1 */
161     0xb0000000, /* CS2 */
162     0xb8000000, /* CS3 */
163 };
164 
165 /* Register base address for each PWM Module */
166 static const hwaddr npcm7xx_pwm_addr[] = {
167     0xf0103000,
168     0xf0104000,
169 };
170 
171 /* Direct memory-mapped access to each SMBus Module. */
172 static const hwaddr npcm7xx_smbus_addr[] = {
173     0xf0080000,
174     0xf0081000,
175     0xf0082000,
176     0xf0083000,
177     0xf0084000,
178     0xf0085000,
179     0xf0086000,
180     0xf0087000,
181     0xf0088000,
182     0xf0089000,
183     0xf008a000,
184     0xf008b000,
185     0xf008c000,
186     0xf008d000,
187     0xf008e000,
188     0xf008f000,
189 };
190 
191 static const struct {
192     hwaddr regs_addr;
193     uint32_t unconnected_pins;
194     uint32_t reset_pu;
195     uint32_t reset_pd;
196     uint32_t reset_osrc;
197     uint32_t reset_odsc;
198 } npcm7xx_gpio[] = {
199     {
200         .regs_addr = 0xf0010000,
201         .reset_pu = 0xff03ffff,
202         .reset_pd = 0x00fc0000,
203     }, {
204         .regs_addr = 0xf0011000,
205         .unconnected_pins = 0x0000001e,
206         .reset_pu = 0xfefffe07,
207         .reset_pd = 0x010001e0,
208     }, {
209         .regs_addr = 0xf0012000,
210         .reset_pu = 0x780fffff,
211         .reset_pd = 0x07f00000,
212         .reset_odsc = 0x00700000,
213     }, {
214         .regs_addr = 0xf0013000,
215         .reset_pu = 0x00fc0000,
216         .reset_pd = 0xff000000,
217     }, {
218         .regs_addr = 0xf0014000,
219         .reset_pu = 0xffffffff,
220     }, {
221         .regs_addr = 0xf0015000,
222         .reset_pu = 0xbf83f801,
223         .reset_pd = 0x007c0000,
224         .reset_osrc = 0x000000f1,
225         .reset_odsc = 0x3f9f80f1,
226     }, {
227         .regs_addr = 0xf0016000,
228         .reset_pu = 0xfc00f801,
229         .reset_pd = 0x000007fe,
230         .reset_odsc = 0x00000800,
231     }, {
232         .regs_addr = 0xf0017000,
233         .unconnected_pins = 0xffffff00,
234         .reset_pu = 0x0000007f,
235         .reset_osrc = 0x0000007f,
236         .reset_odsc = 0x0000007f,
237     },
238 };
239 
240 static const struct {
241     const char *name;
242     hwaddr regs_addr;
243     int cs_count;
244     const hwaddr *flash_addr;
245 } npcm7xx_fiu[] = {
246     {
247         .name = "fiu0",
248         .regs_addr = 0xfb000000,
249         .cs_count = ARRAY_SIZE(npcm7xx_fiu0_flash_addr),
250         .flash_addr = npcm7xx_fiu0_flash_addr,
251     }, {
252         .name = "fiu3",
253         .regs_addr = 0xc0000000,
254         .cs_count = ARRAY_SIZE(npcm7xx_fiu3_flash_addr),
255         .flash_addr = npcm7xx_fiu3_flash_addr,
256     },
257 };
258 
259 static void npcm7xx_write_board_setup(ARMCPU *cpu,
260                                       const struct arm_boot_info *info)
261 {
262     uint32_t board_setup[] = {
263         0xe59f0010,     /* ldr r0, clk_base_addr */
264         0xe59f1010,     /* ldr r1, pllcon1_value */
265         0xe5801010,     /* str r1, [r0, #16] */
266         0xe59f100c,     /* ldr r1, clksel_value */
267         0xe5801004,     /* str r1, [r0, #4] */
268         0xe12fff1e,     /* bx lr */
269         NPCM7XX_CLK_BA,
270         NPCM7XX_PLLCON1_FIXUP_VAL,
271         NPCM7XX_CLKSEL_FIXUP_VAL,
272     };
273     int i;
274 
275     for (i = 0; i < ARRAY_SIZE(board_setup); i++) {
276         board_setup[i] = tswap32(board_setup[i]);
277     }
278     rom_add_blob_fixed("board-setup", board_setup, sizeof(board_setup),
279                        info->board_setup_addr);
280 }
281 
282 static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
283                                          const struct arm_boot_info *info)
284 {
285     /*
286      * The default smpboot stub halts the secondary CPU with a 'wfi'
287      * instruction, but the arch/arm/mach-npcm/platsmp.c in the Linux kernel
288      * does not send an IPI to wake it up, so the second CPU fails to boot. So
289      * we need to provide our own smpboot stub that can not use 'wfi', it has
290      * to spin the secondary CPU until the first CPU writes to the SCRPAD reg.
291      */
292     uint32_t smpboot[] = {
293         0xe59f2018,     /* ldr r2, bootreg_addr */
294         0xe3a00000,     /* mov r0, #0 */
295         0xe5820000,     /* str r0, [r2] */
296         0xe320f002,     /* wfe */
297         0xe5921000,     /* ldr r1, [r2] */
298         0xe1110001,     /* tst r1, r1 */
299         0x0afffffb,     /* beq <wfe> */
300         0xe12fff11,     /* bx r1 */
301         NPCM7XX_SMP_BOOTREG_ADDR,
302     };
303     int i;
304 
305     for (i = 0; i < ARRAY_SIZE(smpboot); i++) {
306         smpboot[i] = tswap32(smpboot[i]);
307     }
308 
309     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
310                        NPCM7XX_SMP_LOADER_START);
311 }
312 
313 static struct arm_boot_info npcm7xx_binfo = {
314     .loader_start           = NPCM7XX_LOADER_START,
315     .smp_loader_start       = NPCM7XX_SMP_LOADER_START,
316     .smp_bootreg_addr       = NPCM7XX_SMP_BOOTREG_ADDR,
317     .gic_cpu_if_addr        = NPCM7XX_GIC_CPU_IF_ADDR,
318     .write_secondary_boot   = npcm7xx_write_secondary_boot,
319     .board_id               = -1,
320     .board_setup_addr       = NPCM7XX_BOARD_SETUP_ADDR,
321     .write_board_setup      = npcm7xx_write_board_setup,
322 };
323 
324 void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc)
325 {
326     NPCM7xxClass *sc = NPCM7XX_GET_CLASS(soc);
327 
328     npcm7xx_binfo.ram_size = machine->ram_size;
329     npcm7xx_binfo.nb_cpus = sc->num_cpus;
330 
331     arm_load_kernel(&soc->cpu[0], machine, &npcm7xx_binfo);
332 }
333 
334 static void npcm7xx_init_fuses(NPCM7xxState *s)
335 {
336     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
337     uint32_t value;
338 
339     /*
340      * The initial mask of disabled modules indicates the chip derivative (e.g.
341      * NPCM750 or NPCM730).
342      */
343     value = tswap32(nc->disabled_modules);
344     npcm7xx_otp_array_write(&s->fuse_array, &value, NPCM7XX_FUSE_DERIVATIVE,
345                             sizeof(value));
346 }
347 
348 static void npcm7xx_write_adc_calibration(NPCM7xxState *s)
349 {
350     /* Both ADC and the fuse array must have realized. */
351     QEMU_BUILD_BUG_ON(sizeof(s->adc.calibration_r_values) != 4);
352     npcm7xx_otp_array_write(&s->fuse_array, s->adc.calibration_r_values,
353             NPCM7XX_FUSE_ADC_CALIB, sizeof(s->adc.calibration_r_values));
354 }
355 
356 static qemu_irq npcm7xx_irq(NPCM7xxState *s, int n)
357 {
358     return qdev_get_gpio_in(DEVICE(&s->a9mpcore), n);
359 }
360 
361 static void npcm7xx_init(Object *obj)
362 {
363     NPCM7xxState *s = NPCM7XX(obj);
364     int i;
365 
366     for (i = 0; i < NPCM7XX_MAX_NUM_CPUS; i++) {
367         object_initialize_child(obj, "cpu[*]", &s->cpu[i],
368                                 ARM_CPU_TYPE_NAME("cortex-a9"));
369     }
370 
371     object_initialize_child(obj, "a9mpcore", &s->a9mpcore, TYPE_A9MPCORE_PRIV);
372     object_initialize_child(obj, "gcr", &s->gcr, TYPE_NPCM7XX_GCR);
373     object_property_add_alias(obj, "power-on-straps", OBJECT(&s->gcr),
374                               "power-on-straps");
375     object_initialize_child(obj, "clk", &s->clk, TYPE_NPCM7XX_CLK);
376     object_initialize_child(obj, "otp1", &s->key_storage,
377                             TYPE_NPCM7XX_KEY_STORAGE);
378     object_initialize_child(obj, "otp2", &s->fuse_array,
379                             TYPE_NPCM7XX_FUSE_ARRAY);
380     object_initialize_child(obj, "mc", &s->mc, TYPE_NPCM7XX_MC);
381     object_initialize_child(obj, "rng", &s->rng, TYPE_NPCM7XX_RNG);
382     object_initialize_child(obj, "adc", &s->adc, TYPE_NPCM7XX_ADC);
383 
384     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
385         object_initialize_child(obj, "tim[*]", &s->tim[i], TYPE_NPCM7XX_TIMER);
386     }
387 
388     for (i = 0; i < ARRAY_SIZE(s->gpio); i++) {
389         object_initialize_child(obj, "gpio[*]", &s->gpio[i], TYPE_NPCM7XX_GPIO);
390     }
391 
392     for (i = 0; i < ARRAY_SIZE(s->smbus); i++) {
393         object_initialize_child(obj, "smbus[*]", &s->smbus[i],
394                                 TYPE_NPCM7XX_SMBUS);
395     }
396 
397     object_initialize_child(obj, "ehci", &s->ehci, TYPE_NPCM7XX_EHCI);
398     object_initialize_child(obj, "ohci", &s->ohci, TYPE_SYSBUS_OHCI);
399 
400     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
401     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
402         object_initialize_child(obj, npcm7xx_fiu[i].name, &s->fiu[i],
403                                 TYPE_NPCM7XX_FIU);
404     }
405 
406     for (i = 0; i < ARRAY_SIZE(s->pwm); i++) {
407         object_initialize_child(obj, "pwm[*]", &s->pwm[i], TYPE_NPCM7XX_PWM);
408     }
409 }
410 
411 static void npcm7xx_realize(DeviceState *dev, Error **errp)
412 {
413     NPCM7xxState *s = NPCM7XX(dev);
414     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
415     int i;
416 
417     if (memory_region_size(s->dram) > NPCM7XX_DRAM_SZ) {
418         error_setg(errp, "%s: NPCM7xx cannot address more than %" PRIu64
419                    " MiB of DRAM", __func__, NPCM7XX_DRAM_SZ / MiB);
420         return;
421     }
422 
423     /* CPUs */
424     for (i = 0; i < nc->num_cpus; i++) {
425         object_property_set_int(OBJECT(&s->cpu[i]), "mp-affinity",
426                                 arm_cpu_mp_affinity(i, NPCM7XX_MAX_NUM_CPUS),
427                                 &error_abort);
428         object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
429                                 NPCM7XX_GIC_CPU_IF_ADDR, &error_abort);
430         object_property_set_bool(OBJECT(&s->cpu[i]), "reset-hivecs", true,
431                                  &error_abort);
432 
433         /* Disable security extensions. */
434         object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3", false,
435                                  &error_abort);
436 
437         if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
438             return;
439         }
440     }
441 
442     /* A9MPCORE peripherals. Can only fail if we pass bad parameters here. */
443     object_property_set_int(OBJECT(&s->a9mpcore), "num-cpu", nc->num_cpus,
444                             &error_abort);
445     object_property_set_int(OBJECT(&s->a9mpcore), "num-irq", NPCM7XX_NUM_IRQ,
446                             &error_abort);
447     sysbus_realize(SYS_BUS_DEVICE(&s->a9mpcore), &error_abort);
448     sysbus_mmio_map(SYS_BUS_DEVICE(&s->a9mpcore), 0, NPCM7XX_CPUP_BA);
449 
450     for (i = 0; i < nc->num_cpus; i++) {
451         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i,
452                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ));
453         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i + nc->num_cpus,
454                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_FIQ));
455     }
456 
457     /* L2 cache controller */
458     sysbus_create_simple("l2x0", NPCM7XX_L2C_BA, NULL);
459 
460     /* System Global Control Registers (GCR). Can fail due to user input. */
461     object_property_set_int(OBJECT(&s->gcr), "disabled-modules",
462                             nc->disabled_modules, &error_abort);
463     object_property_add_const_link(OBJECT(&s->gcr), "dram-mr", OBJECT(s->dram));
464     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gcr), errp)) {
465         return;
466     }
467     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gcr), 0, NPCM7XX_GCR_BA);
468 
469     /* Clock Control Registers (CLK). Cannot fail. */
470     sysbus_realize(SYS_BUS_DEVICE(&s->clk), &error_abort);
471     sysbus_mmio_map(SYS_BUS_DEVICE(&s->clk), 0, NPCM7XX_CLK_BA);
472 
473     /* OTP key storage and fuse strap array. Cannot fail. */
474     sysbus_realize(SYS_BUS_DEVICE(&s->key_storage), &error_abort);
475     sysbus_mmio_map(SYS_BUS_DEVICE(&s->key_storage), 0, NPCM7XX_OTP1_BA);
476     sysbus_realize(SYS_BUS_DEVICE(&s->fuse_array), &error_abort);
477     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fuse_array), 0, NPCM7XX_OTP2_BA);
478     npcm7xx_init_fuses(s);
479 
480     /* Fake Memory Controller (MC). Cannot fail. */
481     sysbus_realize(SYS_BUS_DEVICE(&s->mc), &error_abort);
482     sysbus_mmio_map(SYS_BUS_DEVICE(&s->mc), 0, NPCM7XX_MC_BA);
483 
484     /* ADC Modules. Cannot fail. */
485     qdev_connect_clock_in(DEVICE(&s->adc), "clock", qdev_get_clock_out(
486                           DEVICE(&s->clk), "adc-clock"));
487     sysbus_realize(SYS_BUS_DEVICE(&s->adc), &error_abort);
488     sysbus_mmio_map(SYS_BUS_DEVICE(&s->adc), 0, NPCM7XX_ADC_BA);
489     sysbus_connect_irq(SYS_BUS_DEVICE(&s->adc), 0,
490             npcm7xx_irq(s, NPCM7XX_ADC_IRQ));
491     npcm7xx_write_adc_calibration(s);
492 
493     /* Timer Modules (TIM). Cannot fail. */
494     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_tim_addr) != ARRAY_SIZE(s->tim));
495     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
496         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->tim[i]);
497         int first_irq;
498         int j;
499 
500         /* Connect the timer clock. */
501         qdev_connect_clock_in(DEVICE(&s->tim[i]), "clock", qdev_get_clock_out(
502                     DEVICE(&s->clk), "timer-clock"));
503 
504         sysbus_realize(sbd, &error_abort);
505         sysbus_mmio_map(sbd, 0, npcm7xx_tim_addr[i]);
506 
507         first_irq = NPCM7XX_TIMER0_IRQ + i * NPCM7XX_TIMERS_PER_CTRL;
508         for (j = 0; j < NPCM7XX_TIMERS_PER_CTRL; j++) {
509             qemu_irq irq = npcm7xx_irq(s, first_irq + j);
510             sysbus_connect_irq(sbd, j, irq);
511         }
512 
513         /* IRQ for watchdogs */
514         sysbus_connect_irq(sbd, NPCM7XX_TIMERS_PER_CTRL,
515                 npcm7xx_irq(s, NPCM7XX_WDG0_IRQ + i));
516         /* GPIO that connects clk module with watchdog */
517         qdev_connect_gpio_out_named(DEVICE(&s->tim[i]),
518                 NPCM7XX_WATCHDOG_RESET_GPIO_OUT, 0,
519                 qdev_get_gpio_in_named(DEVICE(&s->clk),
520                         NPCM7XX_WATCHDOG_RESET_GPIO_IN, i));
521     }
522 
523     /* UART0..3 (16550 compatible) */
524     for (i = 0; i < ARRAY_SIZE(npcm7xx_uart_addr); i++) {
525         serial_mm_init(get_system_memory(), npcm7xx_uart_addr[i], 2,
526                        npcm7xx_irq(s, NPCM7XX_UART0_IRQ + i), 115200,
527                        serial_hd(i), DEVICE_LITTLE_ENDIAN);
528     }
529 
530     /* Random Number Generator. Cannot fail. */
531     sysbus_realize(SYS_BUS_DEVICE(&s->rng), &error_abort);
532     sysbus_mmio_map(SYS_BUS_DEVICE(&s->rng), 0, NPCM7XX_RNG_BA);
533 
534     /* GPIO modules. Cannot fail. */
535     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_gpio) != ARRAY_SIZE(s->gpio));
536     for (i = 0; i < ARRAY_SIZE(s->gpio); i++) {
537         Object *obj = OBJECT(&s->gpio[i]);
538 
539         object_property_set_uint(obj, "reset-pullup",
540                                  npcm7xx_gpio[i].reset_pu, &error_abort);
541         object_property_set_uint(obj, "reset-pulldown",
542                                  npcm7xx_gpio[i].reset_pd, &error_abort);
543         object_property_set_uint(obj, "reset-osrc",
544                                  npcm7xx_gpio[i].reset_osrc, &error_abort);
545         object_property_set_uint(obj, "reset-odsc",
546                                  npcm7xx_gpio[i].reset_odsc, &error_abort);
547         sysbus_realize(SYS_BUS_DEVICE(obj), &error_abort);
548         sysbus_mmio_map(SYS_BUS_DEVICE(obj), 0, npcm7xx_gpio[i].regs_addr);
549         sysbus_connect_irq(SYS_BUS_DEVICE(obj), 0,
550                            npcm7xx_irq(s, NPCM7XX_GPIO0_IRQ + i));
551     }
552 
553     /* SMBus modules. Cannot fail. */
554     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_smbus_addr) != ARRAY_SIZE(s->smbus));
555     for (i = 0; i < ARRAY_SIZE(s->smbus); i++) {
556         Object *obj = OBJECT(&s->smbus[i]);
557 
558         sysbus_realize(SYS_BUS_DEVICE(obj), &error_abort);
559         sysbus_mmio_map(SYS_BUS_DEVICE(obj), 0, npcm7xx_smbus_addr[i]);
560         sysbus_connect_irq(SYS_BUS_DEVICE(obj), 0,
561                            npcm7xx_irq(s, NPCM7XX_SMBUS0_IRQ + i));
562     }
563 
564     /* USB Host */
565     object_property_set_bool(OBJECT(&s->ehci), "companion-enable", true,
566                              &error_abort);
567     sysbus_realize(SYS_BUS_DEVICE(&s->ehci), &error_abort);
568     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ehci), 0, NPCM7XX_EHCI_BA);
569     sysbus_connect_irq(SYS_BUS_DEVICE(&s->ehci), 0,
570                        npcm7xx_irq(s, NPCM7XX_EHCI_IRQ));
571 
572     object_property_set_str(OBJECT(&s->ohci), "masterbus", "usb-bus.0",
573                             &error_abort);
574     object_property_set_uint(OBJECT(&s->ohci), "num-ports", 1, &error_abort);
575     sysbus_realize(SYS_BUS_DEVICE(&s->ohci), &error_abort);
576     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ohci), 0, NPCM7XX_OHCI_BA);
577     sysbus_connect_irq(SYS_BUS_DEVICE(&s->ohci), 0,
578                        npcm7xx_irq(s, NPCM7XX_OHCI_IRQ));
579 
580     /* PWM Modules. Cannot fail. */
581     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_pwm_addr) != ARRAY_SIZE(s->pwm));
582     for (i = 0; i < ARRAY_SIZE(s->pwm); i++) {
583         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->pwm[i]);
584 
585         qdev_connect_clock_in(DEVICE(&s->pwm[i]), "clock", qdev_get_clock_out(
586                     DEVICE(&s->clk), "apb3-clock"));
587         sysbus_realize(sbd, &error_abort);
588         sysbus_mmio_map(sbd, 0, npcm7xx_pwm_addr[i]);
589         sysbus_connect_irq(sbd, i, npcm7xx_irq(s, NPCM7XX_PWM0_IRQ + i));
590     }
591 
592     /*
593      * Flash Interface Unit (FIU). Can fail if incorrect number of chip selects
594      * specified, but this is a programming error.
595      */
596     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
597     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
598         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->fiu[i]);
599         int j;
600 
601         object_property_set_int(OBJECT(sbd), "cs-count",
602                                 npcm7xx_fiu[i].cs_count, &error_abort);
603         sysbus_realize(sbd, &error_abort);
604 
605         sysbus_mmio_map(sbd, 0, npcm7xx_fiu[i].regs_addr);
606         for (j = 0; j < npcm7xx_fiu[i].cs_count; j++) {
607             sysbus_mmio_map(sbd, j + 1, npcm7xx_fiu[i].flash_addr[j]);
608         }
609     }
610 
611     /* RAM2 (SRAM) */
612     memory_region_init_ram(&s->sram, OBJECT(dev), "ram2",
613                            NPCM7XX_RAM2_SZ, &error_abort);
614     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM2_BA, &s->sram);
615 
616     /* RAM3 (SRAM) */
617     memory_region_init_ram(&s->ram3, OBJECT(dev), "ram3",
618                            NPCM7XX_RAM3_SZ, &error_abort);
619     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM3_BA, &s->ram3);
620 
621     /* Internal ROM */
622     memory_region_init_rom(&s->irom, OBJECT(dev), "irom", NPCM7XX_ROM_SZ,
623                            &error_abort);
624     memory_region_add_subregion(get_system_memory(), NPCM7XX_ROM_BA, &s->irom);
625 
626     create_unimplemented_device("npcm7xx.shm",          0xc0001000,   4 * KiB);
627     create_unimplemented_device("npcm7xx.vdmx",         0xe0800000,   4 * KiB);
628     create_unimplemented_device("npcm7xx.pcierc",       0xe1000000,  64 * KiB);
629     create_unimplemented_device("npcm7xx.kcs",          0xf0007000,   4 * KiB);
630     create_unimplemented_device("npcm7xx.gfxi",         0xf000e000,   4 * KiB);
631     create_unimplemented_device("npcm7xx.espi",         0xf009f000,   4 * KiB);
632     create_unimplemented_device("npcm7xx.peci",         0xf0100000,   4 * KiB);
633     create_unimplemented_device("npcm7xx.siox[1]",      0xf0101000,   4 * KiB);
634     create_unimplemented_device("npcm7xx.siox[2]",      0xf0102000,   4 * KiB);
635     create_unimplemented_device("npcm7xx.mft[0]",       0xf0180000,   4 * KiB);
636     create_unimplemented_device("npcm7xx.mft[1]",       0xf0181000,   4 * KiB);
637     create_unimplemented_device("npcm7xx.mft[2]",       0xf0182000,   4 * KiB);
638     create_unimplemented_device("npcm7xx.mft[3]",       0xf0183000,   4 * KiB);
639     create_unimplemented_device("npcm7xx.mft[4]",       0xf0184000,   4 * KiB);
640     create_unimplemented_device("npcm7xx.mft[5]",       0xf0185000,   4 * KiB);
641     create_unimplemented_device("npcm7xx.mft[6]",       0xf0186000,   4 * KiB);
642     create_unimplemented_device("npcm7xx.mft[7]",       0xf0187000,   4 * KiB);
643     create_unimplemented_device("npcm7xx.pspi1",        0xf0200000,   4 * KiB);
644     create_unimplemented_device("npcm7xx.pspi2",        0xf0201000,   4 * KiB);
645     create_unimplemented_device("npcm7xx.ahbpci",       0xf0400000,   1 * MiB);
646     create_unimplemented_device("npcm7xx.mcphy",        0xf05f0000,  64 * KiB);
647     create_unimplemented_device("npcm7xx.gmac1",        0xf0802000,   8 * KiB);
648     create_unimplemented_device("npcm7xx.gmac2",        0xf0804000,   8 * KiB);
649     create_unimplemented_device("npcm7xx.vcd",          0xf0810000,  64 * KiB);
650     create_unimplemented_device("npcm7xx.ece",          0xf0820000,   8 * KiB);
651     create_unimplemented_device("npcm7xx.vdma",         0xf0822000,   8 * KiB);
652     create_unimplemented_device("npcm7xx.emc1",         0xf0825000,   4 * KiB);
653     create_unimplemented_device("npcm7xx.emc2",         0xf0826000,   4 * KiB);
654     create_unimplemented_device("npcm7xx.usbd[0]",      0xf0830000,   4 * KiB);
655     create_unimplemented_device("npcm7xx.usbd[1]",      0xf0831000,   4 * KiB);
656     create_unimplemented_device("npcm7xx.usbd[2]",      0xf0832000,   4 * KiB);
657     create_unimplemented_device("npcm7xx.usbd[3]",      0xf0833000,   4 * KiB);
658     create_unimplemented_device("npcm7xx.usbd[4]",      0xf0834000,   4 * KiB);
659     create_unimplemented_device("npcm7xx.usbd[5]",      0xf0835000,   4 * KiB);
660     create_unimplemented_device("npcm7xx.usbd[6]",      0xf0836000,   4 * KiB);
661     create_unimplemented_device("npcm7xx.usbd[7]",      0xf0837000,   4 * KiB);
662     create_unimplemented_device("npcm7xx.usbd[8]",      0xf0838000,   4 * KiB);
663     create_unimplemented_device("npcm7xx.usbd[9]",      0xf0839000,   4 * KiB);
664     create_unimplemented_device("npcm7xx.sd",           0xf0840000,   8 * KiB);
665     create_unimplemented_device("npcm7xx.mmc",          0xf0842000,   8 * KiB);
666     create_unimplemented_device("npcm7xx.pcimbx",       0xf0848000, 512 * KiB);
667     create_unimplemented_device("npcm7xx.aes",          0xf0858000,   4 * KiB);
668     create_unimplemented_device("npcm7xx.des",          0xf0859000,   4 * KiB);
669     create_unimplemented_device("npcm7xx.sha",          0xf085a000,   4 * KiB);
670     create_unimplemented_device("npcm7xx.secacc",       0xf085b000,   4 * KiB);
671     create_unimplemented_device("npcm7xx.spixcs0",      0xf8000000,  16 * MiB);
672     create_unimplemented_device("npcm7xx.spixcs1",      0xf9000000,  16 * MiB);
673     create_unimplemented_device("npcm7xx.spix",         0xfb001000,   4 * KiB);
674 }
675 
676 static Property npcm7xx_properties[] = {
677     DEFINE_PROP_LINK("dram-mr", NPCM7xxState, dram, TYPE_MEMORY_REGION,
678                      MemoryRegion *),
679     DEFINE_PROP_END_OF_LIST(),
680 };
681 
682 static void npcm7xx_class_init(ObjectClass *oc, void *data)
683 {
684     DeviceClass *dc = DEVICE_CLASS(oc);
685 
686     dc->realize = npcm7xx_realize;
687     dc->user_creatable = false;
688     device_class_set_props(dc, npcm7xx_properties);
689 }
690 
691 static void npcm730_class_init(ObjectClass *oc, void *data)
692 {
693     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
694 
695     /* NPCM730 is optimized for data center use, so no graphics, etc. */
696     nc->disabled_modules = 0x00300395;
697     nc->num_cpus = 2;
698 }
699 
700 static void npcm750_class_init(ObjectClass *oc, void *data)
701 {
702     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
703 
704     /* NPCM750 has 2 cores and a full set of peripherals */
705     nc->disabled_modules = 0x00000000;
706     nc->num_cpus = 2;
707 }
708 
709 static const TypeInfo npcm7xx_soc_types[] = {
710     {
711         .name           = TYPE_NPCM7XX,
712         .parent         = TYPE_DEVICE,
713         .instance_size  = sizeof(NPCM7xxState),
714         .instance_init  = npcm7xx_init,
715         .class_size     = sizeof(NPCM7xxClass),
716         .class_init     = npcm7xx_class_init,
717         .abstract       = true,
718     }, {
719         .name           = TYPE_NPCM730,
720         .parent         = TYPE_NPCM7XX,
721         .class_init     = npcm730_class_init,
722     }, {
723         .name           = TYPE_NPCM750,
724         .parent         = TYPE_NPCM7XX,
725         .class_init     = npcm750_class_init,
726     },
727 };
728 
729 DEFINE_TYPES(npcm7xx_soc_types);
730