xref: /openbmc/qemu/hw/arm/npcm7xx.c (revision e6546342)
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-properties.h"
26 #include "qapi/error.h"
27 #include "qemu/units.h"
28 #include "sysemu/sysemu.h"
29 
30 /*
31  * This covers the whole MMIO space. We'll use this to catch any MMIO accesses
32  * that aren't handled by any device.
33  */
34 #define NPCM7XX_MMIO_BA         (0x80000000)
35 #define NPCM7XX_MMIO_SZ         (0x7ffd0000)
36 
37 /* OTP key storage and fuse strap array */
38 #define NPCM7XX_OTP1_BA         (0xf0189000)
39 #define NPCM7XX_OTP2_BA         (0xf018a000)
40 
41 /* Core system modules. */
42 #define NPCM7XX_L2C_BA          (0xf03fc000)
43 #define NPCM7XX_CPUP_BA         (0xf03fe000)
44 #define NPCM7XX_GCR_BA          (0xf0800000)
45 #define NPCM7XX_CLK_BA          (0xf0801000)
46 #define NPCM7XX_MC_BA           (0xf0824000)
47 
48 /* Internal AHB SRAM */
49 #define NPCM7XX_RAM3_BA         (0xc0008000)
50 #define NPCM7XX_RAM3_SZ         (4 * KiB)
51 
52 /* Memory blocks at the end of the address space */
53 #define NPCM7XX_RAM2_BA         (0xfffd0000)
54 #define NPCM7XX_RAM2_SZ         (128 * KiB)
55 #define NPCM7XX_ROM_BA          (0xffff0000)
56 #define NPCM7XX_ROM_SZ          (64 * KiB)
57 
58 /* Clock configuration values to be fixed up when bypassing bootloader */
59 
60 /* Run PLL1 at 1600 MHz */
61 #define NPCM7XX_PLLCON1_FIXUP_VAL   (0x00402101)
62 /* Run the CPU from PLL1 and UART from PLL2 */
63 #define NPCM7XX_CLKSEL_FIXUP_VAL    (0x004aaba9)
64 
65 /*
66  * Interrupt lines going into the GIC. This does not include internal Cortex-A9
67  * interrupts.
68  */
69 enum NPCM7xxInterrupt {
70     NPCM7XX_UART0_IRQ           = 2,
71     NPCM7XX_UART1_IRQ,
72     NPCM7XX_UART2_IRQ,
73     NPCM7XX_UART3_IRQ,
74     NPCM7XX_TIMER0_IRQ          = 32,   /* Timer Module 0 */
75     NPCM7XX_TIMER1_IRQ,
76     NPCM7XX_TIMER2_IRQ,
77     NPCM7XX_TIMER3_IRQ,
78     NPCM7XX_TIMER4_IRQ,
79     NPCM7XX_TIMER5_IRQ,                 /* Timer Module 1 */
80     NPCM7XX_TIMER6_IRQ,
81     NPCM7XX_TIMER7_IRQ,
82     NPCM7XX_TIMER8_IRQ,
83     NPCM7XX_TIMER9_IRQ,
84     NPCM7XX_TIMER10_IRQ,                /* Timer Module 2 */
85     NPCM7XX_TIMER11_IRQ,
86     NPCM7XX_TIMER12_IRQ,
87     NPCM7XX_TIMER13_IRQ,
88     NPCM7XX_TIMER14_IRQ,
89 };
90 
91 /* Total number of GIC interrupts, including internal Cortex-A9 interrupts. */
92 #define NPCM7XX_NUM_IRQ         (160)
93 
94 /* Register base address for each Timer Module */
95 static const hwaddr npcm7xx_tim_addr[] = {
96     0xf0008000,
97     0xf0009000,
98     0xf000a000,
99 };
100 
101 /* Register base address for each 16550 UART */
102 static const hwaddr npcm7xx_uart_addr[] = {
103     0xf0001000,
104     0xf0002000,
105     0xf0003000,
106     0xf0004000,
107 };
108 
109 /* Direct memory-mapped access to SPI0 CS0-1. */
110 static const hwaddr npcm7xx_fiu0_flash_addr[] = {
111     0x80000000, /* CS0 */
112     0x88000000, /* CS1 */
113 };
114 
115 /* Direct memory-mapped access to SPI3 CS0-3. */
116 static const hwaddr npcm7xx_fiu3_flash_addr[] = {
117     0xa0000000, /* CS0 */
118     0xa8000000, /* CS1 */
119     0xb0000000, /* CS2 */
120     0xb8000000, /* CS3 */
121 };
122 
123 static const struct {
124     const char *name;
125     hwaddr regs_addr;
126     int cs_count;
127     const hwaddr *flash_addr;
128 } npcm7xx_fiu[] = {
129     {
130         .name = "fiu0",
131         .regs_addr = 0xfb000000,
132         .cs_count = ARRAY_SIZE(npcm7xx_fiu0_flash_addr),
133         .flash_addr = npcm7xx_fiu0_flash_addr,
134     }, {
135         .name = "fiu3",
136         .regs_addr = 0xc0000000,
137         .cs_count = ARRAY_SIZE(npcm7xx_fiu3_flash_addr),
138         .flash_addr = npcm7xx_fiu3_flash_addr,
139     },
140 };
141 
142 static void npcm7xx_write_board_setup(ARMCPU *cpu,
143                                       const struct arm_boot_info *info)
144 {
145     uint32_t board_setup[] = {
146         0xe59f0010,     /* ldr r0, clk_base_addr */
147         0xe59f1010,     /* ldr r1, pllcon1_value */
148         0xe5801010,     /* str r1, [r0, #16] */
149         0xe59f100c,     /* ldr r1, clksel_value */
150         0xe5801004,     /* str r1, [r0, #4] */
151         0xe12fff1e,     /* bx lr */
152         NPCM7XX_CLK_BA,
153         NPCM7XX_PLLCON1_FIXUP_VAL,
154         NPCM7XX_CLKSEL_FIXUP_VAL,
155     };
156     int i;
157 
158     for (i = 0; i < ARRAY_SIZE(board_setup); i++) {
159         board_setup[i] = tswap32(board_setup[i]);
160     }
161     rom_add_blob_fixed("board-setup", board_setup, sizeof(board_setup),
162                        info->board_setup_addr);
163 }
164 
165 static void npcm7xx_write_secondary_boot(ARMCPU *cpu,
166                                          const struct arm_boot_info *info)
167 {
168     /*
169      * The default smpboot stub halts the secondary CPU with a 'wfi'
170      * instruction, but the arch/arm/mach-npcm/platsmp.c in the Linux kernel
171      * does not send an IPI to wake it up, so the second CPU fails to boot. So
172      * we need to provide our own smpboot stub that can not use 'wfi', it has
173      * to spin the secondary CPU until the first CPU writes to the SCRPAD reg.
174      */
175     uint32_t smpboot[] = {
176         0xe59f2018,     /* ldr r2, bootreg_addr */
177         0xe3a00000,     /* mov r0, #0 */
178         0xe5820000,     /* str r0, [r2] */
179         0xe320f002,     /* wfe */
180         0xe5921000,     /* ldr r1, [r2] */
181         0xe1110001,     /* tst r1, r1 */
182         0x0afffffb,     /* beq <wfe> */
183         0xe12fff11,     /* bx r1 */
184         NPCM7XX_SMP_BOOTREG_ADDR,
185     };
186     int i;
187 
188     for (i = 0; i < ARRAY_SIZE(smpboot); i++) {
189         smpboot[i] = tswap32(smpboot[i]);
190     }
191 
192     rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot),
193                        NPCM7XX_SMP_LOADER_START);
194 }
195 
196 static struct arm_boot_info npcm7xx_binfo = {
197     .loader_start           = NPCM7XX_LOADER_START,
198     .smp_loader_start       = NPCM7XX_SMP_LOADER_START,
199     .smp_bootreg_addr       = NPCM7XX_SMP_BOOTREG_ADDR,
200     .gic_cpu_if_addr        = NPCM7XX_GIC_CPU_IF_ADDR,
201     .write_secondary_boot   = npcm7xx_write_secondary_boot,
202     .board_id               = -1,
203     .board_setup_addr       = NPCM7XX_BOARD_SETUP_ADDR,
204     .write_board_setup      = npcm7xx_write_board_setup,
205 };
206 
207 void npcm7xx_load_kernel(MachineState *machine, NPCM7xxState *soc)
208 {
209     NPCM7xxClass *sc = NPCM7XX_GET_CLASS(soc);
210 
211     npcm7xx_binfo.ram_size = machine->ram_size;
212     npcm7xx_binfo.nb_cpus = sc->num_cpus;
213 
214     arm_load_kernel(&soc->cpu[0], machine, &npcm7xx_binfo);
215 }
216 
217 static void npcm7xx_init_fuses(NPCM7xxState *s)
218 {
219     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
220     uint32_t value;
221 
222     /*
223      * The initial mask of disabled modules indicates the chip derivative (e.g.
224      * NPCM750 or NPCM730).
225      */
226     value = tswap32(nc->disabled_modules);
227     npcm7xx_otp_array_write(&s->fuse_array, &value, NPCM7XX_FUSE_DERIVATIVE,
228                             sizeof(value));
229 }
230 
231 static qemu_irq npcm7xx_irq(NPCM7xxState *s, int n)
232 {
233     return qdev_get_gpio_in(DEVICE(&s->a9mpcore), n);
234 }
235 
236 static void npcm7xx_init(Object *obj)
237 {
238     NPCM7xxState *s = NPCM7XX(obj);
239     int i;
240 
241     for (i = 0; i < NPCM7XX_MAX_NUM_CPUS; i++) {
242         object_initialize_child(obj, "cpu[*]", &s->cpu[i],
243                                 ARM_CPU_TYPE_NAME("cortex-a9"));
244     }
245 
246     object_initialize_child(obj, "a9mpcore", &s->a9mpcore, TYPE_A9MPCORE_PRIV);
247     object_initialize_child(obj, "gcr", &s->gcr, TYPE_NPCM7XX_GCR);
248     object_property_add_alias(obj, "power-on-straps", OBJECT(&s->gcr),
249                               "power-on-straps");
250     object_initialize_child(obj, "clk", &s->clk, TYPE_NPCM7XX_CLK);
251     object_initialize_child(obj, "otp1", &s->key_storage,
252                             TYPE_NPCM7XX_KEY_STORAGE);
253     object_initialize_child(obj, "otp2", &s->fuse_array,
254                             TYPE_NPCM7XX_FUSE_ARRAY);
255     object_initialize_child(obj, "mc", &s->mc, TYPE_NPCM7XX_MC);
256 
257     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
258         object_initialize_child(obj, "tim[*]", &s->tim[i], TYPE_NPCM7XX_TIMER);
259     }
260 
261     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
262     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
263         object_initialize_child(obj, npcm7xx_fiu[i].name, &s->fiu[i],
264                                 TYPE_NPCM7XX_FIU);
265     }
266 }
267 
268 static void npcm7xx_realize(DeviceState *dev, Error **errp)
269 {
270     NPCM7xxState *s = NPCM7XX(dev);
271     NPCM7xxClass *nc = NPCM7XX_GET_CLASS(s);
272     int i;
273 
274     if (memory_region_size(s->dram) > NPCM7XX_DRAM_SZ) {
275         error_setg(errp, "%s: NPCM7xx cannot address more than %" PRIu64
276                    " MiB of DRAM", __func__, NPCM7XX_DRAM_SZ / MiB);
277         return;
278     }
279 
280     /* CPUs */
281     for (i = 0; i < nc->num_cpus; i++) {
282         object_property_set_int(OBJECT(&s->cpu[i]), "mp-affinity",
283                                 arm_cpu_mp_affinity(i, NPCM7XX_MAX_NUM_CPUS),
284                                 &error_abort);
285         object_property_set_int(OBJECT(&s->cpu[i]), "reset-cbar",
286                                 NPCM7XX_GIC_CPU_IF_ADDR, &error_abort);
287         object_property_set_bool(OBJECT(&s->cpu[i]), "reset-hivecs", true,
288                                  &error_abort);
289 
290         /* Disable security extensions. */
291         object_property_set_bool(OBJECT(&s->cpu[i]), "has_el3", false,
292                                  &error_abort);
293 
294         if (!qdev_realize(DEVICE(&s->cpu[i]), NULL, errp)) {
295             return;
296         }
297     }
298 
299     /* A9MPCORE peripherals. Can only fail if we pass bad parameters here. */
300     object_property_set_int(OBJECT(&s->a9mpcore), "num-cpu", nc->num_cpus,
301                             &error_abort);
302     object_property_set_int(OBJECT(&s->a9mpcore), "num-irq", NPCM7XX_NUM_IRQ,
303                             &error_abort);
304     sysbus_realize(SYS_BUS_DEVICE(&s->a9mpcore), &error_abort);
305     sysbus_mmio_map(SYS_BUS_DEVICE(&s->a9mpcore), 0, NPCM7XX_CPUP_BA);
306 
307     for (i = 0; i < nc->num_cpus; i++) {
308         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i,
309                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_IRQ));
310         sysbus_connect_irq(SYS_BUS_DEVICE(&s->a9mpcore), i + nc->num_cpus,
311                            qdev_get_gpio_in(DEVICE(&s->cpu[i]), ARM_CPU_FIQ));
312     }
313 
314     /* L2 cache controller */
315     sysbus_create_simple("l2x0", NPCM7XX_L2C_BA, NULL);
316 
317     /* System Global Control Registers (GCR). Can fail due to user input. */
318     object_property_set_int(OBJECT(&s->gcr), "disabled-modules",
319                             nc->disabled_modules, &error_abort);
320     object_property_add_const_link(OBJECT(&s->gcr), "dram-mr", OBJECT(s->dram));
321     if (!sysbus_realize(SYS_BUS_DEVICE(&s->gcr), errp)) {
322         return;
323     }
324     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gcr), 0, NPCM7XX_GCR_BA);
325 
326     /* Clock Control Registers (CLK). Cannot fail. */
327     sysbus_realize(SYS_BUS_DEVICE(&s->clk), &error_abort);
328     sysbus_mmio_map(SYS_BUS_DEVICE(&s->clk), 0, NPCM7XX_CLK_BA);
329 
330     /* OTP key storage and fuse strap array. Cannot fail. */
331     sysbus_realize(SYS_BUS_DEVICE(&s->key_storage), &error_abort);
332     sysbus_mmio_map(SYS_BUS_DEVICE(&s->key_storage), 0, NPCM7XX_OTP1_BA);
333     sysbus_realize(SYS_BUS_DEVICE(&s->fuse_array), &error_abort);
334     sysbus_mmio_map(SYS_BUS_DEVICE(&s->fuse_array), 0, NPCM7XX_OTP2_BA);
335     npcm7xx_init_fuses(s);
336 
337     /* Fake Memory Controller (MC). Cannot fail. */
338     sysbus_realize(SYS_BUS_DEVICE(&s->mc), &error_abort);
339     sysbus_mmio_map(SYS_BUS_DEVICE(&s->mc), 0, NPCM7XX_MC_BA);
340 
341     /* Timer Modules (TIM). Cannot fail. */
342     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_tim_addr) != ARRAY_SIZE(s->tim));
343     for (i = 0; i < ARRAY_SIZE(s->tim); i++) {
344         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->tim[i]);
345         int first_irq;
346         int j;
347 
348         sysbus_realize(sbd, &error_abort);
349         sysbus_mmio_map(sbd, 0, npcm7xx_tim_addr[i]);
350 
351         first_irq = NPCM7XX_TIMER0_IRQ + i * NPCM7XX_TIMERS_PER_CTRL;
352         for (j = 0; j < NPCM7XX_TIMERS_PER_CTRL; j++) {
353             qemu_irq irq = npcm7xx_irq(s, first_irq + j);
354             sysbus_connect_irq(sbd, j, irq);
355         }
356     }
357 
358     /* UART0..3 (16550 compatible) */
359     for (i = 0; i < ARRAY_SIZE(npcm7xx_uart_addr); i++) {
360         serial_mm_init(get_system_memory(), npcm7xx_uart_addr[i], 2,
361                        npcm7xx_irq(s, NPCM7XX_UART0_IRQ + i), 115200,
362                        serial_hd(i), DEVICE_LITTLE_ENDIAN);
363     }
364 
365     /*
366      * Flash Interface Unit (FIU). Can fail if incorrect number of chip selects
367      * specified, but this is a programming error.
368      */
369     QEMU_BUILD_BUG_ON(ARRAY_SIZE(npcm7xx_fiu) != ARRAY_SIZE(s->fiu));
370     for (i = 0; i < ARRAY_SIZE(s->fiu); i++) {
371         SysBusDevice *sbd = SYS_BUS_DEVICE(&s->fiu[i]);
372         int j;
373 
374         object_property_set_int(OBJECT(sbd), "cs-count",
375                                 npcm7xx_fiu[i].cs_count, &error_abort);
376         sysbus_realize(sbd, &error_abort);
377 
378         sysbus_mmio_map(sbd, 0, npcm7xx_fiu[i].regs_addr);
379         for (j = 0; j < npcm7xx_fiu[i].cs_count; j++) {
380             sysbus_mmio_map(sbd, j + 1, npcm7xx_fiu[i].flash_addr[j]);
381         }
382     }
383 
384     /* RAM2 (SRAM) */
385     memory_region_init_ram(&s->sram, OBJECT(dev), "ram2",
386                            NPCM7XX_RAM2_SZ, &error_abort);
387     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM2_BA, &s->sram);
388 
389     /* RAM3 (SRAM) */
390     memory_region_init_ram(&s->ram3, OBJECT(dev), "ram3",
391                            NPCM7XX_RAM3_SZ, &error_abort);
392     memory_region_add_subregion(get_system_memory(), NPCM7XX_RAM3_BA, &s->ram3);
393 
394     /* Internal ROM */
395     memory_region_init_rom(&s->irom, OBJECT(dev), "irom", NPCM7XX_ROM_SZ,
396                            &error_abort);
397     memory_region_add_subregion(get_system_memory(), NPCM7XX_ROM_BA, &s->irom);
398 
399     create_unimplemented_device("npcm7xx.shm",          0xc0001000,   4 * KiB);
400     create_unimplemented_device("npcm7xx.vdmx",         0xe0800000,   4 * KiB);
401     create_unimplemented_device("npcm7xx.pcierc",       0xe1000000,  64 * KiB);
402     create_unimplemented_device("npcm7xx.kcs",          0xf0007000,   4 * KiB);
403     create_unimplemented_device("npcm7xx.rng",          0xf000b000,   4 * KiB);
404     create_unimplemented_device("npcm7xx.adc",          0xf000c000,   4 * KiB);
405     create_unimplemented_device("npcm7xx.gfxi",         0xf000e000,   4 * KiB);
406     create_unimplemented_device("npcm7xx.gpio[0]",      0xf0010000,   4 * KiB);
407     create_unimplemented_device("npcm7xx.gpio[1]",      0xf0011000,   4 * KiB);
408     create_unimplemented_device("npcm7xx.gpio[2]",      0xf0012000,   4 * KiB);
409     create_unimplemented_device("npcm7xx.gpio[3]",      0xf0013000,   4 * KiB);
410     create_unimplemented_device("npcm7xx.gpio[4]",      0xf0014000,   4 * KiB);
411     create_unimplemented_device("npcm7xx.gpio[5]",      0xf0015000,   4 * KiB);
412     create_unimplemented_device("npcm7xx.gpio[6]",      0xf0016000,   4 * KiB);
413     create_unimplemented_device("npcm7xx.gpio[7]",      0xf0017000,   4 * KiB);
414     create_unimplemented_device("npcm7xx.smbus[0]",     0xf0080000,   4 * KiB);
415     create_unimplemented_device("npcm7xx.smbus[1]",     0xf0081000,   4 * KiB);
416     create_unimplemented_device("npcm7xx.smbus[2]",     0xf0082000,   4 * KiB);
417     create_unimplemented_device("npcm7xx.smbus[3]",     0xf0083000,   4 * KiB);
418     create_unimplemented_device("npcm7xx.smbus[4]",     0xf0084000,   4 * KiB);
419     create_unimplemented_device("npcm7xx.smbus[5]",     0xf0085000,   4 * KiB);
420     create_unimplemented_device("npcm7xx.smbus[6]",     0xf0086000,   4 * KiB);
421     create_unimplemented_device("npcm7xx.smbus[7]",     0xf0087000,   4 * KiB);
422     create_unimplemented_device("npcm7xx.smbus[8]",     0xf0088000,   4 * KiB);
423     create_unimplemented_device("npcm7xx.smbus[9]",     0xf0089000,   4 * KiB);
424     create_unimplemented_device("npcm7xx.smbus[10]",    0xf008a000,   4 * KiB);
425     create_unimplemented_device("npcm7xx.smbus[11]",    0xf008b000,   4 * KiB);
426     create_unimplemented_device("npcm7xx.smbus[12]",    0xf008c000,   4 * KiB);
427     create_unimplemented_device("npcm7xx.smbus[13]",    0xf008d000,   4 * KiB);
428     create_unimplemented_device("npcm7xx.smbus[14]",    0xf008e000,   4 * KiB);
429     create_unimplemented_device("npcm7xx.smbus[15]",    0xf008f000,   4 * KiB);
430     create_unimplemented_device("npcm7xx.espi",         0xf009f000,   4 * KiB);
431     create_unimplemented_device("npcm7xx.peci",         0xf0100000,   4 * KiB);
432     create_unimplemented_device("npcm7xx.siox[1]",      0xf0101000,   4 * KiB);
433     create_unimplemented_device("npcm7xx.siox[2]",      0xf0102000,   4 * KiB);
434     create_unimplemented_device("npcm7xx.pwm[0]",       0xf0103000,   4 * KiB);
435     create_unimplemented_device("npcm7xx.pwm[1]",       0xf0104000,   4 * KiB);
436     create_unimplemented_device("npcm7xx.mft[0]",       0xf0180000,   4 * KiB);
437     create_unimplemented_device("npcm7xx.mft[1]",       0xf0181000,   4 * KiB);
438     create_unimplemented_device("npcm7xx.mft[2]",       0xf0182000,   4 * KiB);
439     create_unimplemented_device("npcm7xx.mft[3]",       0xf0183000,   4 * KiB);
440     create_unimplemented_device("npcm7xx.mft[4]",       0xf0184000,   4 * KiB);
441     create_unimplemented_device("npcm7xx.mft[5]",       0xf0185000,   4 * KiB);
442     create_unimplemented_device("npcm7xx.mft[6]",       0xf0186000,   4 * KiB);
443     create_unimplemented_device("npcm7xx.mft[7]",       0xf0187000,   4 * KiB);
444     create_unimplemented_device("npcm7xx.pspi1",        0xf0200000,   4 * KiB);
445     create_unimplemented_device("npcm7xx.pspi2",        0xf0201000,   4 * KiB);
446     create_unimplemented_device("npcm7xx.ahbpci",       0xf0400000,   1 * MiB);
447     create_unimplemented_device("npcm7xx.mcphy",        0xf05f0000,  64 * KiB);
448     create_unimplemented_device("npcm7xx.gmac1",        0xf0802000,   8 * KiB);
449     create_unimplemented_device("npcm7xx.gmac2",        0xf0804000,   8 * KiB);
450     create_unimplemented_device("npcm7xx.ehci",         0xf0806000,   4 * KiB);
451     create_unimplemented_device("npcm7xx.ohci",         0xf0807000,   4 * KiB);
452     create_unimplemented_device("npcm7xx.vcd",          0xf0810000,  64 * KiB);
453     create_unimplemented_device("npcm7xx.ece",          0xf0820000,   8 * KiB);
454     create_unimplemented_device("npcm7xx.vdma",         0xf0822000,   8 * KiB);
455     create_unimplemented_device("npcm7xx.emc1",         0xf0825000,   4 * KiB);
456     create_unimplemented_device("npcm7xx.emc2",         0xf0826000,   4 * KiB);
457     create_unimplemented_device("npcm7xx.usbd[0]",      0xf0830000,   4 * KiB);
458     create_unimplemented_device("npcm7xx.usbd[1]",      0xf0831000,   4 * KiB);
459     create_unimplemented_device("npcm7xx.usbd[2]",      0xf0832000,   4 * KiB);
460     create_unimplemented_device("npcm7xx.usbd[3]",      0xf0833000,   4 * KiB);
461     create_unimplemented_device("npcm7xx.usbd[4]",      0xf0834000,   4 * KiB);
462     create_unimplemented_device("npcm7xx.usbd[5]",      0xf0835000,   4 * KiB);
463     create_unimplemented_device("npcm7xx.usbd[6]",      0xf0836000,   4 * KiB);
464     create_unimplemented_device("npcm7xx.usbd[7]",      0xf0837000,   4 * KiB);
465     create_unimplemented_device("npcm7xx.usbd[8]",      0xf0838000,   4 * KiB);
466     create_unimplemented_device("npcm7xx.usbd[9]",      0xf0839000,   4 * KiB);
467     create_unimplemented_device("npcm7xx.sd",           0xf0840000,   8 * KiB);
468     create_unimplemented_device("npcm7xx.mmc",          0xf0842000,   8 * KiB);
469     create_unimplemented_device("npcm7xx.pcimbx",       0xf0848000, 512 * KiB);
470     create_unimplemented_device("npcm7xx.aes",          0xf0858000,   4 * KiB);
471     create_unimplemented_device("npcm7xx.des",          0xf0859000,   4 * KiB);
472     create_unimplemented_device("npcm7xx.sha",          0xf085a000,   4 * KiB);
473     create_unimplemented_device("npcm7xx.secacc",       0xf085b000,   4 * KiB);
474     create_unimplemented_device("npcm7xx.spixcs0",      0xf8000000,  16 * MiB);
475     create_unimplemented_device("npcm7xx.spixcs1",      0xf9000000,  16 * MiB);
476     create_unimplemented_device("npcm7xx.spix",         0xfb001000,   4 * KiB);
477 }
478 
479 static Property npcm7xx_properties[] = {
480     DEFINE_PROP_LINK("dram-mr", NPCM7xxState, dram, TYPE_MEMORY_REGION,
481                      MemoryRegion *),
482     DEFINE_PROP_END_OF_LIST(),
483 };
484 
485 static void npcm7xx_class_init(ObjectClass *oc, void *data)
486 {
487     DeviceClass *dc = DEVICE_CLASS(oc);
488 
489     dc->realize = npcm7xx_realize;
490     dc->user_creatable = false;
491     device_class_set_props(dc, npcm7xx_properties);
492 }
493 
494 static void npcm730_class_init(ObjectClass *oc, void *data)
495 {
496     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
497 
498     /* NPCM730 is optimized for data center use, so no graphics, etc. */
499     nc->disabled_modules = 0x00300395;
500     nc->num_cpus = 2;
501 }
502 
503 static void npcm750_class_init(ObjectClass *oc, void *data)
504 {
505     NPCM7xxClass *nc = NPCM7XX_CLASS(oc);
506 
507     /* NPCM750 has 2 cores and a full set of peripherals */
508     nc->disabled_modules = 0x00000000;
509     nc->num_cpus = 2;
510 }
511 
512 static const TypeInfo npcm7xx_soc_types[] = {
513     {
514         .name           = TYPE_NPCM7XX,
515         .parent         = TYPE_DEVICE,
516         .instance_size  = sizeof(NPCM7xxState),
517         .instance_init  = npcm7xx_init,
518         .class_size     = sizeof(NPCM7xxClass),
519         .class_init     = npcm7xx_class_init,
520         .abstract       = true,
521     }, {
522         .name           = TYPE_NPCM730,
523         .parent         = TYPE_NPCM7XX,
524         .class_init     = npcm730_class_init,
525     }, {
526         .name           = TYPE_NPCM750,
527         .parent         = TYPE_NPCM7XX,
528         .class_init     = npcm750_class_init,
529     },
530 };
531 
532 DEFINE_TYPES(npcm7xx_soc_types);
533