Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2020-03-24-tag0' into...
[qemu/ar7.git] / hw / arm / xlnx-versal-virt.c
blob878a27514001b859769590d3971433f265e6d8b3
1 /*
2 * Xilinx Versal Virtual board.
4 * Copyright (c) 2018 Xilinx Inc.
5 * Written by Edgar E. Iglesias
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 or
9 * (at your option) any later version.
12 #include "qemu/osdep.h"
13 #include "qemu/log.h"
14 #include "qemu/error-report.h"
15 #include "qapi/error.h"
16 #include "sysemu/device_tree.h"
17 #include "exec/address-spaces.h"
18 #include "hw/boards.h"
19 #include "hw/sysbus.h"
20 #include "hw/arm/sysbus-fdt.h"
21 #include "hw/arm/fdt.h"
22 #include "cpu.h"
23 #include "hw/arm/xlnx-versal.h"
25 #define TYPE_XLNX_VERSAL_VIRT_MACHINE MACHINE_TYPE_NAME("xlnx-versal-virt")
26 #define XLNX_VERSAL_VIRT_MACHINE(obj) \
27 OBJECT_CHECK(VersalVirt, (obj), TYPE_XLNX_VERSAL_VIRT_MACHINE)
29 typedef struct VersalVirt {
30 MachineState parent_obj;
32 Versal soc;
34 void *fdt;
35 int fdt_size;
36 struct {
37 uint32_t gic;
38 uint32_t ethernet_phy[2];
39 uint32_t clk_125Mhz;
40 uint32_t clk_25Mhz;
41 } phandle;
42 struct arm_boot_info binfo;
44 struct {
45 bool secure;
46 } cfg;
47 } VersalVirt;
49 static void fdt_create(VersalVirt *s)
51 MachineClass *mc = MACHINE_GET_CLASS(s);
52 int i;
54 s->fdt = create_device_tree(&s->fdt_size);
55 if (!s->fdt) {
56 error_report("create_device_tree() failed");
57 exit(1);
60 /* Allocate all phandles. */
61 s->phandle.gic = qemu_fdt_alloc_phandle(s->fdt);
62 for (i = 0; i < ARRAY_SIZE(s->phandle.ethernet_phy); i++) {
63 s->phandle.ethernet_phy[i] = qemu_fdt_alloc_phandle(s->fdt);
65 s->phandle.clk_25Mhz = qemu_fdt_alloc_phandle(s->fdt);
66 s->phandle.clk_125Mhz = qemu_fdt_alloc_phandle(s->fdt);
68 /* Create /chosen node for load_dtb. */
69 qemu_fdt_add_subnode(s->fdt, "/chosen");
71 /* Header */
72 qemu_fdt_setprop_cell(s->fdt, "/", "interrupt-parent", s->phandle.gic);
73 qemu_fdt_setprop_cell(s->fdt, "/", "#size-cells", 0x2);
74 qemu_fdt_setprop_cell(s->fdt, "/", "#address-cells", 0x2);
75 qemu_fdt_setprop_string(s->fdt, "/", "model", mc->desc);
76 qemu_fdt_setprop_string(s->fdt, "/", "compatible", "xlnx-versal-virt");
79 static void fdt_add_clk_node(VersalVirt *s, const char *name,
80 unsigned int freq_hz, uint32_t phandle)
82 qemu_fdt_add_subnode(s->fdt, name);
83 qemu_fdt_setprop_cell(s->fdt, name, "phandle", phandle);
84 qemu_fdt_setprop_cell(s->fdt, name, "clock-frequency", freq_hz);
85 qemu_fdt_setprop_cell(s->fdt, name, "#clock-cells", 0x0);
86 qemu_fdt_setprop_string(s->fdt, name, "compatible", "fixed-clock");
87 qemu_fdt_setprop(s->fdt, name, "u-boot,dm-pre-reloc", NULL, 0);
90 static void fdt_add_cpu_nodes(VersalVirt *s, uint32_t psci_conduit)
92 int i;
94 qemu_fdt_add_subnode(s->fdt, "/cpus");
95 qemu_fdt_setprop_cell(s->fdt, "/cpus", "#size-cells", 0x0);
96 qemu_fdt_setprop_cell(s->fdt, "/cpus", "#address-cells", 1);
98 for (i = XLNX_VERSAL_NR_ACPUS - 1; i >= 0; i--) {
99 char *name = g_strdup_printf("/cpus/cpu@%d", i);
100 ARMCPU *armcpu = ARM_CPU(qemu_get_cpu(i));
102 qemu_fdt_add_subnode(s->fdt, name);
103 qemu_fdt_setprop_cell(s->fdt, name, "reg", armcpu->mp_affinity);
104 if (psci_conduit != QEMU_PSCI_CONDUIT_DISABLED) {
105 qemu_fdt_setprop_string(s->fdt, name, "enable-method", "psci");
107 qemu_fdt_setprop_string(s->fdt, name, "device_type", "cpu");
108 qemu_fdt_setprop_string(s->fdt, name, "compatible",
109 armcpu->dtb_compatible);
110 g_free(name);
114 static void fdt_add_gic_nodes(VersalVirt *s)
116 char *nodename;
118 nodename = g_strdup_printf("/gic@%x", MM_GIC_APU_DIST_MAIN);
119 qemu_fdt_add_subnode(s->fdt, nodename);
120 qemu_fdt_setprop_cell(s->fdt, nodename, "phandle", s->phandle.gic);
121 qemu_fdt_setprop_cells(s->fdt, nodename, "interrupts",
122 GIC_FDT_IRQ_TYPE_PPI, VERSAL_GIC_MAINT_IRQ,
123 GIC_FDT_IRQ_FLAGS_LEVEL_HI);
124 qemu_fdt_setprop(s->fdt, nodename, "interrupt-controller", NULL, 0);
125 qemu_fdt_setprop_sized_cells(s->fdt, nodename, "reg",
126 2, MM_GIC_APU_DIST_MAIN,
127 2, MM_GIC_APU_DIST_MAIN_SIZE,
128 2, MM_GIC_APU_REDIST_0,
129 2, MM_GIC_APU_REDIST_0_SIZE);
130 qemu_fdt_setprop_cell(s->fdt, nodename, "#interrupt-cells", 3);
131 qemu_fdt_setprop_string(s->fdt, nodename, "compatible", "arm,gic-v3");
132 g_free(nodename);
135 static void fdt_add_timer_nodes(VersalVirt *s)
137 const char compat[] = "arm,armv8-timer";
138 uint32_t irqflags = GIC_FDT_IRQ_FLAGS_LEVEL_HI;
140 qemu_fdt_add_subnode(s->fdt, "/timer");
141 qemu_fdt_setprop_cells(s->fdt, "/timer", "interrupts",
142 GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_S_EL1_IRQ, irqflags,
143 GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_NS_EL1_IRQ, irqflags,
144 GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_VIRT_IRQ, irqflags,
145 GIC_FDT_IRQ_TYPE_PPI, VERSAL_TIMER_NS_EL2_IRQ, irqflags);
146 qemu_fdt_setprop(s->fdt, "/timer", "compatible",
147 compat, sizeof(compat));
150 static void fdt_add_uart_nodes(VersalVirt *s)
152 uint64_t addrs[] = { MM_UART1, MM_UART0 };
153 unsigned int irqs[] = { VERSAL_UART1_IRQ_0, VERSAL_UART0_IRQ_0 };
154 const char compat[] = "arm,pl011\0arm,sbsa-uart";
155 const char clocknames[] = "uartclk\0apb_pclk";
156 int i;
158 for (i = 0; i < ARRAY_SIZE(addrs); i++) {
159 char *name = g_strdup_printf("/uart@%" PRIx64, addrs[i]);
160 qemu_fdt_add_subnode(s->fdt, name);
161 qemu_fdt_setprop_cell(s->fdt, name, "current-speed", 115200);
162 qemu_fdt_setprop_cells(s->fdt, name, "clocks",
163 s->phandle.clk_125Mhz, s->phandle.clk_125Mhz);
164 qemu_fdt_setprop(s->fdt, name, "clock-names",
165 clocknames, sizeof(clocknames));
167 qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
168 GIC_FDT_IRQ_TYPE_SPI, irqs[i],
169 GIC_FDT_IRQ_FLAGS_LEVEL_HI);
170 qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
171 2, addrs[i], 2, 0x1000);
172 qemu_fdt_setprop(s->fdt, name, "compatible",
173 compat, sizeof(compat));
174 qemu_fdt_setprop(s->fdt, name, "u-boot,dm-pre-reloc", NULL, 0);
176 if (addrs[i] == MM_UART0) {
177 /* Select UART0. */
178 qemu_fdt_setprop_string(s->fdt, "/chosen", "stdout-path", name);
180 g_free(name);
184 static void fdt_add_fixed_link_nodes(VersalVirt *s, char *gemname,
185 uint32_t phandle)
187 char *name = g_strdup_printf("%s/fixed-link", gemname);
189 qemu_fdt_add_subnode(s->fdt, name);
190 qemu_fdt_setprop_cell(s->fdt, name, "phandle", phandle);
191 qemu_fdt_setprop(s->fdt, name, "full-duplex", NULL, 0);
192 qemu_fdt_setprop_cell(s->fdt, name, "speed", 1000);
193 g_free(name);
196 static void fdt_add_gem_nodes(VersalVirt *s)
198 uint64_t addrs[] = { MM_GEM1, MM_GEM0 };
199 unsigned int irqs[] = { VERSAL_GEM1_IRQ_0, VERSAL_GEM0_IRQ_0 };
200 const char clocknames[] = "pclk\0hclk\0tx_clk\0rx_clk";
201 const char compat_gem[] = "cdns,zynqmp-gem\0cdns,gem";
202 int i;
204 for (i = 0; i < ARRAY_SIZE(addrs); i++) {
205 char *name = g_strdup_printf("/ethernet@%" PRIx64, addrs[i]);
206 qemu_fdt_add_subnode(s->fdt, name);
208 fdt_add_fixed_link_nodes(s, name, s->phandle.ethernet_phy[i]);
209 qemu_fdt_setprop_string(s->fdt, name, "phy-mode", "rgmii-id");
210 qemu_fdt_setprop_cell(s->fdt, name, "phy-handle",
211 s->phandle.ethernet_phy[i]);
212 qemu_fdt_setprop_cells(s->fdt, name, "clocks",
213 s->phandle.clk_25Mhz, s->phandle.clk_25Mhz,
214 s->phandle.clk_25Mhz, s->phandle.clk_25Mhz);
215 qemu_fdt_setprop(s->fdt, name, "clock-names",
216 clocknames, sizeof(clocknames));
217 qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
218 GIC_FDT_IRQ_TYPE_SPI, irqs[i],
219 GIC_FDT_IRQ_FLAGS_LEVEL_HI,
220 GIC_FDT_IRQ_TYPE_SPI, irqs[i],
221 GIC_FDT_IRQ_FLAGS_LEVEL_HI);
222 qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
223 2, addrs[i], 2, 0x1000);
224 qemu_fdt_setprop(s->fdt, name, "compatible",
225 compat_gem, sizeof(compat_gem));
226 qemu_fdt_setprop_cell(s->fdt, name, "#address-cells", 1);
227 qemu_fdt_setprop_cell(s->fdt, name, "#size-cells", 0);
228 g_free(name);
232 static void fdt_add_zdma_nodes(VersalVirt *s)
234 const char clocknames[] = "clk_main\0clk_apb";
235 const char compat[] = "xlnx,zynqmp-dma-1.0";
236 int i;
238 for (i = XLNX_VERSAL_NR_ADMAS - 1; i >= 0; i--) {
239 uint64_t addr = MM_ADMA_CH0 + MM_ADMA_CH0_SIZE * i;
240 char *name = g_strdup_printf("/dma@%" PRIx64, addr);
242 qemu_fdt_add_subnode(s->fdt, name);
244 qemu_fdt_setprop_cell(s->fdt, name, "xlnx,bus-width", 64);
245 qemu_fdt_setprop_cells(s->fdt, name, "clocks",
246 s->phandle.clk_25Mhz, s->phandle.clk_25Mhz);
247 qemu_fdt_setprop(s->fdt, name, "clock-names",
248 clocknames, sizeof(clocknames));
249 qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
250 GIC_FDT_IRQ_TYPE_SPI, VERSAL_ADMA_IRQ_0 + i,
251 GIC_FDT_IRQ_FLAGS_LEVEL_HI);
252 qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
253 2, addr, 2, 0x1000);
254 qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
255 g_free(name);
259 static void fdt_nop_memory_nodes(void *fdt, Error **errp)
261 Error *err = NULL;
262 char **node_path;
263 int n = 0;
265 node_path = qemu_fdt_node_unit_path(fdt, "memory", &err);
266 if (err) {
267 error_propagate(errp, err);
268 return;
270 while (node_path[n]) {
271 if (g_str_has_prefix(node_path[n], "/memory")) {
272 qemu_fdt_nop_node(fdt, node_path[n]);
274 n++;
276 g_strfreev(node_path);
279 static void fdt_add_memory_nodes(VersalVirt *s, void *fdt, uint64_t ram_size)
281 /* Describes the various split DDR access regions. */
282 static const struct {
283 uint64_t base;
284 uint64_t size;
285 } addr_ranges[] = {
286 { MM_TOP_DDR, MM_TOP_DDR_SIZE },
287 { MM_TOP_DDR_2, MM_TOP_DDR_2_SIZE },
288 { MM_TOP_DDR_3, MM_TOP_DDR_3_SIZE },
289 { MM_TOP_DDR_4, MM_TOP_DDR_4_SIZE }
291 uint64_t mem_reg_prop[8] = {0};
292 uint64_t size = ram_size;
293 Error *err = NULL;
294 char *name;
295 int i;
297 fdt_nop_memory_nodes(fdt, &err);
298 if (err) {
299 error_report_err(err);
300 return;
303 name = g_strdup_printf("/memory@%x", MM_TOP_DDR);
304 for (i = 0; i < ARRAY_SIZE(addr_ranges) && size; i++) {
305 uint64_t mapsize;
307 mapsize = size < addr_ranges[i].size ? size : addr_ranges[i].size;
309 mem_reg_prop[i * 2] = addr_ranges[i].base;
310 mem_reg_prop[i * 2 + 1] = mapsize;
311 size -= mapsize;
313 qemu_fdt_add_subnode(fdt, name);
314 qemu_fdt_setprop_string(fdt, name, "device_type", "memory");
316 switch (i) {
317 case 1:
318 qemu_fdt_setprop_sized_cells(fdt, name, "reg",
319 2, mem_reg_prop[0],
320 2, mem_reg_prop[1]);
321 break;
322 case 2:
323 qemu_fdt_setprop_sized_cells(fdt, name, "reg",
324 2, mem_reg_prop[0],
325 2, mem_reg_prop[1],
326 2, mem_reg_prop[2],
327 2, mem_reg_prop[3]);
328 break;
329 case 3:
330 qemu_fdt_setprop_sized_cells(fdt, name, "reg",
331 2, mem_reg_prop[0],
332 2, mem_reg_prop[1],
333 2, mem_reg_prop[2],
334 2, mem_reg_prop[3],
335 2, mem_reg_prop[4],
336 2, mem_reg_prop[5]);
337 break;
338 case 4:
339 qemu_fdt_setprop_sized_cells(fdt, name, "reg",
340 2, mem_reg_prop[0],
341 2, mem_reg_prop[1],
342 2, mem_reg_prop[2],
343 2, mem_reg_prop[3],
344 2, mem_reg_prop[4],
345 2, mem_reg_prop[5],
346 2, mem_reg_prop[6],
347 2, mem_reg_prop[7]);
348 break;
349 default:
350 g_assert_not_reached();
352 g_free(name);
355 static void versal_virt_modify_dtb(const struct arm_boot_info *binfo,
356 void *fdt)
358 VersalVirt *s = container_of(binfo, VersalVirt, binfo);
360 fdt_add_memory_nodes(s, fdt, binfo->ram_size);
363 static void *versal_virt_get_dtb(const struct arm_boot_info *binfo,
364 int *fdt_size)
366 const VersalVirt *board = container_of(binfo, VersalVirt, binfo);
368 *fdt_size = board->fdt_size;
369 return board->fdt;
372 #define NUM_VIRTIO_TRANSPORT 8
373 static void create_virtio_regions(VersalVirt *s)
375 int virtio_mmio_size = 0x200;
376 int i;
378 for (i = 0; i < NUM_VIRTIO_TRANSPORT; i++) {
379 char *name = g_strdup_printf("virtio%d", i);
380 hwaddr base = MM_TOP_RSVD + i * virtio_mmio_size;
381 int irq = VERSAL_RSVD_IRQ_FIRST + i;
382 MemoryRegion *mr;
383 DeviceState *dev;
384 qemu_irq pic_irq;
386 pic_irq = qdev_get_gpio_in(DEVICE(&s->soc.fpd.apu.gic), irq);
387 dev = qdev_create(NULL, "virtio-mmio");
388 object_property_add_child(OBJECT(&s->soc), name, OBJECT(dev),
389 &error_fatal);
390 qdev_init_nofail(dev);
391 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic_irq);
392 mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
393 memory_region_add_subregion(&s->soc.mr_ps, base, mr);
394 g_free(name);
397 for (i = 0; i < NUM_VIRTIO_TRANSPORT; i++) {
398 hwaddr base = MM_TOP_RSVD + i * virtio_mmio_size;
399 int irq = VERSAL_RSVD_IRQ_FIRST + i;
400 char *name = g_strdup_printf("/virtio_mmio@%" PRIx64, base);
402 qemu_fdt_add_subnode(s->fdt, name);
403 qemu_fdt_setprop(s->fdt, name, "dma-coherent", NULL, 0);
404 qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
405 GIC_FDT_IRQ_TYPE_SPI, irq,
406 GIC_FDT_IRQ_FLAGS_EDGE_LO_HI);
407 qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
408 2, base, 2, virtio_mmio_size);
409 qemu_fdt_setprop_string(s->fdt, name, "compatible", "virtio,mmio");
410 g_free(name);
414 static void versal_virt_init(MachineState *machine)
416 VersalVirt *s = XLNX_VERSAL_VIRT_MACHINE(machine);
417 int psci_conduit = QEMU_PSCI_CONDUIT_DISABLED;
420 * If the user provides an Operating System to be loaded, we expect them
421 * to use the -kernel command line option.
423 * Users can load firmware or boot-loaders with the -device loader options.
425 * When loading an OS, we generate a dtb and let arm_load_kernel() select
426 * where it gets loaded. This dtb will be passed to the kernel in x0.
428 * If there's no -kernel option, we generate a DTB and place it at 0x1000
429 * for the bootloaders or firmware to pick up.
431 * If users want to provide their own DTB, they can use the -dtb option.
432 * These dtb's will have their memory nodes modified to match QEMU's
433 * selected ram_size option before they get passed to the kernel or fw.
435 * When loading an OS, we turn on QEMU's PSCI implementation with SMC
436 * as the PSCI conduit. When there's no -kernel, we assume the user
437 * provides EL3 firmware to handle PSCI.
439 if (machine->kernel_filename) {
440 psci_conduit = QEMU_PSCI_CONDUIT_SMC;
443 sysbus_init_child_obj(OBJECT(machine), "xlnx-ve", &s->soc,
444 sizeof(s->soc), TYPE_XLNX_VERSAL);
445 object_property_set_link(OBJECT(&s->soc), OBJECT(machine->ram),
446 "ddr", &error_abort);
447 object_property_set_int(OBJECT(&s->soc), psci_conduit,
448 "psci-conduit", &error_abort);
449 object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
451 fdt_create(s);
452 create_virtio_regions(s);
453 fdt_add_gem_nodes(s);
454 fdt_add_uart_nodes(s);
455 fdt_add_gic_nodes(s);
456 fdt_add_timer_nodes(s);
457 fdt_add_zdma_nodes(s);
458 fdt_add_cpu_nodes(s, psci_conduit);
459 fdt_add_clk_node(s, "/clk125", 125000000, s->phandle.clk_125Mhz);
460 fdt_add_clk_node(s, "/clk25", 25000000, s->phandle.clk_25Mhz);
462 /* Make the APU cpu address space visible to virtio and other
463 * modules unaware of muliple address-spaces. */
464 memory_region_add_subregion_overlap(get_system_memory(),
465 0, &s->soc.fpd.apu.mr, 0);
467 s->binfo.ram_size = machine->ram_size;
468 s->binfo.loader_start = 0x0;
469 s->binfo.get_dtb = versal_virt_get_dtb;
470 s->binfo.modify_dtb = versal_virt_modify_dtb;
471 if (machine->kernel_filename) {
472 arm_load_kernel(s->soc.fpd.apu.cpu[0], machine, &s->binfo);
473 } else {
474 AddressSpace *as = arm_boot_address_space(s->soc.fpd.apu.cpu[0],
475 &s->binfo);
476 /* Some boot-loaders (e.g u-boot) don't like blobs at address 0 (NULL).
477 * Offset things by 4K. */
478 s->binfo.loader_start = 0x1000;
479 s->binfo.dtb_limit = 0x1000000;
480 if (arm_load_dtb(s->binfo.loader_start,
481 &s->binfo, s->binfo.dtb_limit, as, machine) < 0) {
482 exit(EXIT_FAILURE);
487 static void versal_virt_machine_instance_init(Object *obj)
491 static void versal_virt_machine_class_init(ObjectClass *oc, void *data)
493 MachineClass *mc = MACHINE_CLASS(oc);
495 mc->desc = "Xilinx Versal Virtual development board";
496 mc->init = versal_virt_init;
497 mc->max_cpus = XLNX_VERSAL_NR_ACPUS;
498 mc->default_cpus = XLNX_VERSAL_NR_ACPUS;
499 mc->no_cdrom = true;
500 mc->default_ram_id = "ddr";
503 static const TypeInfo versal_virt_machine_init_typeinfo = {
504 .name = TYPE_XLNX_VERSAL_VIRT_MACHINE,
505 .parent = TYPE_MACHINE,
506 .class_init = versal_virt_machine_class_init,
507 .instance_init = versal_virt_machine_instance_init,
508 .instance_size = sizeof(VersalVirt),
511 static void versal_virt_machine_init_register_types(void)
513 type_register_static(&versal_virt_machine_init_typeinfo);
516 type_init(versal_virt_machine_init_register_types)