xref: /qemu/hw/arm/allwinner-r40.c (revision 4a52ef61d901290da8ece2bf99546af1389ff7bb)
1 /*
2  * Allwinner R40/A40i/T3 System on Chip emulation
3  *
4  * Copyright (C) 2023 qianfan Zhao <qianfanguijin@163.com>
5  *
6  * This program is free software: you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the 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,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
18  */
19 
20 #include "qemu/osdep.h"
21 #include "qapi/error.h"
22 #include "qemu/error-report.h"
23 #include "qemu/bswap.h"
24 #include "qemu/module.h"
25 #include "qemu/units.h"
26 #include "hw/qdev-core.h"
27 #include "hw/sysbus.h"
28 #include "hw/char/serial.h"
29 #include "hw/misc/unimp.h"
30 #include "hw/usb/hcd-ehci.h"
31 #include "hw/loader.h"
32 #include "sysemu/sysemu.h"
33 #include "hw/arm/allwinner-r40.h"
34 #include "hw/misc/allwinner-r40-dramc.h"
35 
36 /* Memory map */
37 const hwaddr allwinner_r40_memmap[] = {
38     [AW_R40_DEV_SRAM_A1]    = 0x00000000,
39     [AW_R40_DEV_SRAM_A2]    = 0x00004000,
40     [AW_R40_DEV_SRAM_A3]    = 0x00008000,
41     [AW_R40_DEV_SRAM_A4]    = 0x0000b400,
42     [AW_R40_DEV_MMC0]       = 0x01c0f000,
43     [AW_R40_DEV_MMC1]       = 0x01c10000,
44     [AW_R40_DEV_MMC2]       = 0x01c11000,
45     [AW_R40_DEV_MMC3]       = 0x01c12000,
46     [AW_R40_DEV_CCU]        = 0x01c20000,
47     [AW_R40_DEV_PIT]        = 0x01c20c00,
48     [AW_R40_DEV_UART0]      = 0x01c28000,
49     [AW_R40_DEV_UART1]      = 0x01c28400,
50     [AW_R40_DEV_UART2]      = 0x01c28800,
51     [AW_R40_DEV_UART3]      = 0x01c28c00,
52     [AW_R40_DEV_UART4]      = 0x01c29000,
53     [AW_R40_DEV_UART5]      = 0x01c29400,
54     [AW_R40_DEV_UART6]      = 0x01c29800,
55     [AW_R40_DEV_UART7]      = 0x01c29c00,
56     [AW_R40_DEV_TWI0]       = 0x01c2ac00,
57     [AW_R40_DEV_DRAMCOM]    = 0x01c62000,
58     [AW_R40_DEV_DRAMCTL]    = 0x01c63000,
59     [AW_R40_DEV_DRAMPHY]    = 0x01c65000,
60     [AW_R40_DEV_GIC_DIST]   = 0x01c81000,
61     [AW_R40_DEV_GIC_CPU]    = 0x01c82000,
62     [AW_R40_DEV_GIC_HYP]    = 0x01c84000,
63     [AW_R40_DEV_GIC_VCPU]   = 0x01c86000,
64     [AW_R40_DEV_SDRAM]      = 0x40000000
65 };
66 
67 /* List of unimplemented devices */
68 struct AwR40Unimplemented {
69     const char *device_name;
70     hwaddr base;
71     hwaddr size;
72 };
73 
74 static struct AwR40Unimplemented r40_unimplemented[] = {
75     { "d-engine",   0x01000000, 4 * MiB },
76     { "d-inter",    0x01400000, 128 * KiB },
77     { "sram-c",     0x01c00000, 4 * KiB },
78     { "dma",        0x01c02000, 4 * KiB },
79     { "nfdc",       0x01c03000, 4 * KiB },
80     { "ts",         0x01c04000, 4 * KiB },
81     { "spi0",       0x01c05000, 4 * KiB },
82     { "spi1",       0x01c06000, 4 * KiB },
83     { "cs0",        0x01c09000, 4 * KiB },
84     { "keymem",     0x01c0a000, 4 * KiB },
85     { "emac",       0x01c0b000, 4 * KiB },
86     { "usb0-otg",   0x01c13000, 4 * KiB },
87     { "usb0-host",  0x01c14000, 4 * KiB },
88     { "crypto",     0x01c15000, 4 * KiB },
89     { "spi2",       0x01c17000, 4 * KiB },
90     { "sata",       0x01c18000, 4 * KiB },
91     { "usb1-host",  0x01c19000, 4 * KiB },
92     { "sid",        0x01c1b000, 4 * KiB },
93     { "usb2-host",  0x01c1c000, 4 * KiB },
94     { "cs1",        0x01c1d000, 4 * KiB },
95     { "spi3",       0x01c1f000, 4 * KiB },
96     { "rtc",        0x01c20400, 1 * KiB },
97     { "pio",        0x01c20800, 1 * KiB },
98     { "owa",        0x01c21000, 1 * KiB },
99     { "ac97",       0x01c21400, 1 * KiB },
100     { "cir0",       0x01c21800, 1 * KiB },
101     { "cir1",       0x01c21c00, 1 * KiB },
102     { "pcm0",       0x01c22000, 1 * KiB },
103     { "pcm1",       0x01c22400, 1 * KiB },
104     { "pcm2",       0x01c22800, 1 * KiB },
105     { "audio",      0x01c22c00, 1 * KiB },
106     { "keypad",     0x01c23000, 1 * KiB },
107     { "pwm",        0x01c23400, 1 * KiB },
108     { "keyadc",     0x01c24400, 1 * KiB },
109     { "ths",        0x01c24c00, 1 * KiB },
110     { "rtp",        0x01c25000, 1 * KiB },
111     { "pmu",        0x01c25400, 1 * KiB },
112     { "cpu-cfg",    0x01c25c00, 1 * KiB },
113     { "uart0",      0x01c28000, 1 * KiB },
114     { "uart1",      0x01c28400, 1 * KiB },
115     { "uart2",      0x01c28800, 1 * KiB },
116     { "uart3",      0x01c28c00, 1 * KiB },
117     { "uart4",      0x01c29000, 1 * KiB },
118     { "uart5",      0x01c29400, 1 * KiB },
119     { "uart6",      0x01c29800, 1 * KiB },
120     { "uart7",      0x01c29c00, 1 * KiB },
121     { "ps20",       0x01c2a000, 1 * KiB },
122     { "ps21",       0x01c2a400, 1 * KiB },
123     { "twi1",       0x01c2b000, 1 * KiB },
124     { "twi2",       0x01c2b400, 1 * KiB },
125     { "twi3",       0x01c2b800, 1 * KiB },
126     { "twi4",       0x01c2c000, 1 * KiB },
127     { "scr",        0x01c2c400, 1 * KiB },
128     { "tvd-top",    0x01c30000, 4 * KiB },
129     { "tvd0",       0x01c31000, 4 * KiB },
130     { "tvd1",       0x01c32000, 4 * KiB },
131     { "tvd2",       0x01c33000, 4 * KiB },
132     { "tvd3",       0x01c34000, 4 * KiB },
133     { "gpu",        0x01c40000, 64 * KiB },
134     { "gmac",       0x01c50000, 64 * KiB },
135     { "hstmr",      0x01c60000, 4 * KiB },
136     { "tcon-top",   0x01c70000, 4 * KiB },
137     { "lcd0",       0x01c71000, 4 * KiB },
138     { "lcd1",       0x01c72000, 4 * KiB },
139     { "tv0",        0x01c73000, 4 * KiB },
140     { "tv1",        0x01c74000, 4 * KiB },
141     { "tve-top",    0x01c90000, 16 * KiB },
142     { "tve0",       0x01c94000, 16 * KiB },
143     { "tve1",       0x01c98000, 16 * KiB },
144     { "mipi_dsi",   0x01ca0000, 4 * KiB },
145     { "mipi_dphy",  0x01ca1000, 4 * KiB },
146     { "ve",         0x01d00000, 1024 * KiB },
147     { "mp",         0x01e80000, 128 * KiB },
148     { "hdmi",       0x01ee0000, 128 * KiB },
149     { "prcm",       0x01f01400, 1 * KiB },
150     { "debug",      0x3f500000, 64 * KiB },
151     { "cpubist",    0x3f501000, 4 * KiB },
152     { "dcu",        0x3fff0000, 64 * KiB },
153     { "hstmr",      0x01c60000, 4 * KiB },
154     { "brom",       0xffff0000, 36 * KiB }
155 };
156 
157 /* Per Processor Interrupts */
158 enum {
159     AW_R40_GIC_PPI_MAINT     =  9,
160     AW_R40_GIC_PPI_HYPTIMER  = 10,
161     AW_R40_GIC_PPI_VIRTTIMER = 11,
162     AW_R40_GIC_PPI_SECTIMER  = 13,
163     AW_R40_GIC_PPI_PHYSTIMER = 14
164 };
165 
166 /* Shared Processor Interrupts */
167 enum {
168     AW_R40_GIC_SPI_UART0     =  1,
169     AW_R40_GIC_SPI_UART1     =  2,
170     AW_R40_GIC_SPI_UART2     =  3,
171     AW_R40_GIC_SPI_UART3     =  4,
172     AW_R40_GIC_SPI_TWI0      =  7,
173     AW_R40_GIC_SPI_UART4     = 17,
174     AW_R40_GIC_SPI_UART5     = 18,
175     AW_R40_GIC_SPI_UART6     = 19,
176     AW_R40_GIC_SPI_UART7     = 20,
177     AW_R40_GIC_SPI_TIMER0    = 22,
178     AW_R40_GIC_SPI_TIMER1    = 23,
179     AW_R40_GIC_SPI_MMC0      = 32,
180     AW_R40_GIC_SPI_MMC1      = 33,
181     AW_R40_GIC_SPI_MMC2      = 34,
182     AW_R40_GIC_SPI_MMC3      = 35,
183 };
184 
185 /* Allwinner R40 general constants */
186 enum {
187     AW_R40_GIC_NUM_SPI       = 128
188 };
189 
190 #define BOOT0_MAGIC             "eGON.BT0"
191 
192 /* The low 8-bits of the 'boot_media' field in the SPL header */
193 #define SUNXI_BOOTED_FROM_MMC0  0
194 #define SUNXI_BOOTED_FROM_NAND  1
195 #define SUNXI_BOOTED_FROM_MMC2  2
196 #define SUNXI_BOOTED_FROM_SPI   3
197 
198 struct boot_file_head {
199     uint32_t            b_instruction;
200     uint8_t             magic[8];
201     uint32_t            check_sum;
202     uint32_t            length;
203     uint32_t            pub_head_size;
204     uint32_t            fel_script_address;
205     uint32_t            fel_uEnv_length;
206     uint32_t            dt_name_offset;
207     uint32_t            dram_size;
208     uint32_t            boot_media;
209     uint32_t            string_pool[13];
210 };
211 
212 bool allwinner_r40_bootrom_setup(AwR40State *s, BlockBackend *blk, int unit)
213 {
214     const int64_t rom_size = 32 * KiB;
215     g_autofree uint8_t *buffer = g_new0(uint8_t, rom_size);
216     struct boot_file_head *head = (struct boot_file_head *)buffer;
217 
218     if (blk_pread(blk, 8 * KiB, rom_size, buffer, 0) < 0) {
219         error_setg(&error_fatal, "%s: failed to read BlockBackend data",
220                    __func__);
221         return false;
222     }
223 
224     /* we only check the magic string here. */
225     if (memcmp(head->magic, BOOT0_MAGIC, sizeof(head->magic))) {
226         return false;
227     }
228 
229     /*
230      * Simulate the behavior of the bootROM, it will change the boot_media
231      * flag to indicate where the chip is booting from. R40 can boot from
232      * mmc0 or mmc2, the default value of boot_media is zero
233      * (SUNXI_BOOTED_FROM_MMC0), let's fix this flag when it is booting from
234      * the others.
235      */
236     if (unit == 2) {
237         head->boot_media = cpu_to_le32(SUNXI_BOOTED_FROM_MMC2);
238     } else {
239         head->boot_media = cpu_to_le32(SUNXI_BOOTED_FROM_MMC0);
240     }
241 
242     rom_add_blob("allwinner-r40.bootrom", buffer, rom_size,
243                   rom_size, s->memmap[AW_R40_DEV_SRAM_A1],
244                   NULL, NULL, NULL, NULL, false);
245     return true;
246 }
247 
248 static void allwinner_r40_init(Object *obj)
249 {
250     static const char *mmc_names[AW_R40_NUM_MMCS] = {
251         "mmc0", "mmc1", "mmc2", "mmc3"
252     };
253     AwR40State *s = AW_R40(obj);
254 
255     s->memmap = allwinner_r40_memmap;
256 
257     for (int i = 0; i < AW_R40_NUM_CPUS; i++) {
258         object_initialize_child(obj, "cpu[*]", &s->cpus[i],
259                                 ARM_CPU_TYPE_NAME("cortex-a7"));
260     }
261 
262     object_initialize_child(obj, "gic", &s->gic, TYPE_ARM_GIC);
263 
264     object_initialize_child(obj, "timer", &s->timer, TYPE_AW_A10_PIT);
265     object_property_add_alias(obj, "clk0-freq", OBJECT(&s->timer),
266                               "clk0-freq");
267     object_property_add_alias(obj, "clk1-freq", OBJECT(&s->timer),
268                               "clk1-freq");
269 
270     object_initialize_child(obj, "ccu", &s->ccu, TYPE_AW_R40_CCU);
271 
272     for (int i = 0; i < AW_R40_NUM_MMCS; i++) {
273         object_initialize_child(obj, mmc_names[i], &s->mmc[i],
274                                 TYPE_AW_SDHOST_SUN5I);
275     }
276 
277     object_initialize_child(obj, "twi0", &s->i2c0, TYPE_AW_I2C_SUN6I);
278 
279     object_initialize_child(obj, "dramc", &s->dramc, TYPE_AW_R40_DRAMC);
280     object_property_add_alias(obj, "ram-addr", OBJECT(&s->dramc),
281                              "ram-addr");
282     object_property_add_alias(obj, "ram-size", OBJECT(&s->dramc),
283                               "ram-size");
284 }
285 
286 static void allwinner_r40_realize(DeviceState *dev, Error **errp)
287 {
288     AwR40State *s = AW_R40(dev);
289     unsigned i;
290 
291     /* CPUs */
292     for (i = 0; i < AW_R40_NUM_CPUS; i++) {
293 
294         /*
295          * Disable secondary CPUs. Guest EL3 firmware will start
296          * them via CPU reset control registers.
297          */
298         qdev_prop_set_bit(DEVICE(&s->cpus[i]), "start-powered-off",
299                           i > 0);
300 
301         /* All exception levels required */
302         qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el3", true);
303         qdev_prop_set_bit(DEVICE(&s->cpus[i]), "has_el2", true);
304 
305         /* Mark realized */
306         qdev_realize(DEVICE(&s->cpus[i]), NULL, &error_fatal);
307     }
308 
309     /* Generic Interrupt Controller */
310     qdev_prop_set_uint32(DEVICE(&s->gic), "num-irq", AW_R40_GIC_NUM_SPI +
311                                                      GIC_INTERNAL);
312     qdev_prop_set_uint32(DEVICE(&s->gic), "revision", 2);
313     qdev_prop_set_uint32(DEVICE(&s->gic), "num-cpu", AW_R40_NUM_CPUS);
314     qdev_prop_set_bit(DEVICE(&s->gic), "has-security-extensions", false);
315     qdev_prop_set_bit(DEVICE(&s->gic), "has-virtualization-extensions", true);
316     sysbus_realize(SYS_BUS_DEVICE(&s->gic), &error_fatal);
317 
318     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 0, s->memmap[AW_R40_DEV_GIC_DIST]);
319     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 1, s->memmap[AW_R40_DEV_GIC_CPU]);
320     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 2, s->memmap[AW_R40_DEV_GIC_HYP]);
321     sysbus_mmio_map(SYS_BUS_DEVICE(&s->gic), 3, s->memmap[AW_R40_DEV_GIC_VCPU]);
322 
323     /*
324      * Wire the outputs from each CPU's generic timer and the GICv2
325      * maintenance interrupt signal to the appropriate GIC PPI inputs,
326      * and the GIC's IRQ/FIQ/VIRQ/VFIQ interrupt outputs to the CPU's inputs.
327      */
328     for (i = 0; i < AW_R40_NUM_CPUS; i++) {
329         DeviceState *cpudev = DEVICE(&s->cpus[i]);
330         int ppibase = AW_R40_GIC_NUM_SPI + i * GIC_INTERNAL + GIC_NR_SGIS;
331         int irq;
332         /*
333          * Mapping from the output timer irq lines from the CPU to the
334          * GIC PPI inputs used for this board.
335          */
336         const int timer_irq[] = {
337             [GTIMER_PHYS] = AW_R40_GIC_PPI_PHYSTIMER,
338             [GTIMER_VIRT] = AW_R40_GIC_PPI_VIRTTIMER,
339             [GTIMER_HYP]  = AW_R40_GIC_PPI_HYPTIMER,
340             [GTIMER_SEC]  = AW_R40_GIC_PPI_SECTIMER,
341         };
342 
343         /* Connect CPU timer outputs to GIC PPI inputs */
344         for (irq = 0; irq < ARRAY_SIZE(timer_irq); irq++) {
345             qdev_connect_gpio_out(cpudev, irq,
346                                   qdev_get_gpio_in(DEVICE(&s->gic),
347                                                    ppibase + timer_irq[irq]));
348         }
349 
350         /* Connect GIC outputs to CPU interrupt inputs */
351         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i,
352                            qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
353         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + AW_R40_NUM_CPUS,
354                            qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
355         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (2 * AW_R40_NUM_CPUS),
356                            qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
357         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (3 * AW_R40_NUM_CPUS),
358                            qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
359 
360         /* GIC maintenance signal */
361         sysbus_connect_irq(SYS_BUS_DEVICE(&s->gic), i + (4 * AW_R40_NUM_CPUS),
362                            qdev_get_gpio_in(DEVICE(&s->gic),
363                                             ppibase + AW_R40_GIC_PPI_MAINT));
364     }
365 
366     /* Timer */
367     sysbus_realize(SYS_BUS_DEVICE(&s->timer), &error_fatal);
368     sysbus_mmio_map(SYS_BUS_DEVICE(&s->timer), 0, s->memmap[AW_R40_DEV_PIT]);
369     sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 0,
370                        qdev_get_gpio_in(DEVICE(&s->gic),
371                        AW_R40_GIC_SPI_TIMER0));
372     sysbus_connect_irq(SYS_BUS_DEVICE(&s->timer), 1,
373                        qdev_get_gpio_in(DEVICE(&s->gic),
374                        AW_R40_GIC_SPI_TIMER1));
375 
376     /* SRAM */
377     memory_region_init_ram(&s->sram_a1, OBJECT(dev), "sram A1",
378                             16 * KiB, &error_abort);
379     memory_region_init_ram(&s->sram_a2, OBJECT(dev), "sram A2",
380                             16 * KiB, &error_abort);
381     memory_region_init_ram(&s->sram_a3, OBJECT(dev), "sram A3",
382                             13 * KiB, &error_abort);
383     memory_region_init_ram(&s->sram_a4, OBJECT(dev), "sram A4",
384                             3 * KiB, &error_abort);
385     memory_region_add_subregion(get_system_memory(),
386                                 s->memmap[AW_R40_DEV_SRAM_A1], &s->sram_a1);
387     memory_region_add_subregion(get_system_memory(),
388                                 s->memmap[AW_R40_DEV_SRAM_A2], &s->sram_a2);
389     memory_region_add_subregion(get_system_memory(),
390                                 s->memmap[AW_R40_DEV_SRAM_A3], &s->sram_a3);
391     memory_region_add_subregion(get_system_memory(),
392                                 s->memmap[AW_R40_DEV_SRAM_A4], &s->sram_a4);
393 
394     /* Clock Control Unit */
395     sysbus_realize(SYS_BUS_DEVICE(&s->ccu), &error_fatal);
396     sysbus_mmio_map(SYS_BUS_DEVICE(&s->ccu), 0, s->memmap[AW_R40_DEV_CCU]);
397 
398     /* SD/MMC */
399     for (int i = 0; i < AW_R40_NUM_MMCS; i++) {
400         qemu_irq irq = qdev_get_gpio_in(DEVICE(&s->gic),
401                                         AW_R40_GIC_SPI_MMC0 + i);
402         const hwaddr addr = s->memmap[AW_R40_DEV_MMC0 + i];
403 
404         object_property_set_link(OBJECT(&s->mmc[i]), "dma-memory",
405                                  OBJECT(get_system_memory()), &error_fatal);
406         sysbus_realize(SYS_BUS_DEVICE(&s->mmc[i]), &error_fatal);
407         sysbus_mmio_map(SYS_BUS_DEVICE(&s->mmc[i]), 0, addr);
408         sysbus_connect_irq(SYS_BUS_DEVICE(&s->mmc[i]), 0, irq);
409     }
410 
411     /* UART0. For future clocktree API: All UARTS are connected to APB2_CLK. */
412     for (int i = 0; i < AW_R40_NUM_UARTS; i++) {
413         static const int uart_irqs[AW_R40_NUM_UARTS] = {
414             AW_R40_GIC_SPI_UART0,
415             AW_R40_GIC_SPI_UART1,
416             AW_R40_GIC_SPI_UART2,
417             AW_R40_GIC_SPI_UART3,
418             AW_R40_GIC_SPI_UART4,
419             AW_R40_GIC_SPI_UART5,
420             AW_R40_GIC_SPI_UART6,
421             AW_R40_GIC_SPI_UART7,
422         };
423         const hwaddr addr = s->memmap[AW_R40_DEV_UART0 + i];
424 
425         serial_mm_init(get_system_memory(), addr, 2,
426                        qdev_get_gpio_in(DEVICE(&s->gic), uart_irqs[i]),
427                        115200, serial_hd(i), DEVICE_NATIVE_ENDIAN);
428     }
429 
430     /* I2C */
431     sysbus_realize(SYS_BUS_DEVICE(&s->i2c0), &error_fatal);
432     sysbus_mmio_map(SYS_BUS_DEVICE(&s->i2c0), 0, s->memmap[AW_R40_DEV_TWI0]);
433     sysbus_connect_irq(SYS_BUS_DEVICE(&s->i2c0), 0,
434                        qdev_get_gpio_in(DEVICE(&s->gic), AW_R40_GIC_SPI_TWI0));
435 
436     /* DRAMC */
437     sysbus_realize(SYS_BUS_DEVICE(&s->dramc), &error_fatal);
438     sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 0,
439                     s->memmap[AW_R40_DEV_DRAMCOM]);
440     sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 1,
441                     s->memmap[AW_R40_DEV_DRAMCTL]);
442     sysbus_mmio_map(SYS_BUS_DEVICE(&s->dramc), 2,
443                     s->memmap[AW_R40_DEV_DRAMPHY]);
444 
445     /* Unimplemented devices */
446     for (i = 0; i < ARRAY_SIZE(r40_unimplemented); i++) {
447         create_unimplemented_device(r40_unimplemented[i].device_name,
448                                     r40_unimplemented[i].base,
449                                     r40_unimplemented[i].size);
450     }
451 }
452 
453 static void allwinner_r40_class_init(ObjectClass *oc, void *data)
454 {
455     DeviceClass *dc = DEVICE_CLASS(oc);
456 
457     dc->realize = allwinner_r40_realize;
458     /* Reason: uses serial_hd() in realize function */
459     dc->user_creatable = false;
460 }
461 
462 static const TypeInfo allwinner_r40_type_info = {
463     .name = TYPE_AW_R40,
464     .parent = TYPE_DEVICE,
465     .instance_size = sizeof(AwR40State),
466     .instance_init = allwinner_r40_init,
467     .class_init = allwinner_r40_class_init,
468 };
469 
470 static void allwinner_r40_register_types(void)
471 {
472     type_register_static(&allwinner_r40_type_info);
473 }
474 
475 type_init(allwinner_r40_register_types)
476