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25#include "qemu/osdep.h"
26#include "qemu-common.h"
27#include "qemu/datadir.h"
28#include "qemu/units.h"
29#include "cpu.h"
30#include "hw/sysbus.h"
31#include "hw/char/serial.h"
32#include "hw/block/flash.h"
33#include "sysemu/sysemu.h"
34#include "sysemu/reset.h"
35#include "hw/boards.h"
36#include "sysemu/device_tree.h"
37#include "hw/loader.h"
38#include "elf.h"
39#include "qapi/error.h"
40#include "qemu/error-report.h"
41#include "qemu/option.h"
42
43#include "hw/intc/ppc-uic.h"
44#include "hw/ppc/ppc.h"
45#include "hw/ppc/ppc4xx.h"
46#include "hw/qdev-properties.h"
47#include "ppc405.h"
48
49#define EPAPR_MAGIC (0x45504150)
50#define FLASH_SIZE (16 * MiB)
51
52#define INTC_BASEADDR 0x81800000
53#define UART16550_BASEADDR 0x83e01003
54#define TIMER_BASEADDR 0x83c00000
55#define PFLASH_BASEADDR 0xfc000000
56
57#define TIMER_IRQ 3
58#define UART16550_IRQ 9
59
60static struct boot_info
61{
62 uint32_t bootstrap_pc;
63 uint32_t cmdline;
64 uint32_t fdt;
65 uint32_t ima_size;
66 void *vfdt;
67} boot_info;
68
69
70static void mmubooke_create_initial_mapping(CPUPPCState *env,
71 target_ulong va,
72 hwaddr pa)
73{
74 ppcemb_tlb_t *tlb = &env->tlb.tlbe[0];
75
76 tlb->attr = 0;
77 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
78 tlb->size = 1U << 31;
79 tlb->EPN = va & TARGET_PAGE_MASK;
80 tlb->RPN = pa & TARGET_PAGE_MASK;
81 tlb->PID = 0;
82
83 tlb = &env->tlb.tlbe[1];
84 tlb->attr = 0;
85 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
86 tlb->size = 1U << 31;
87 tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
88 tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
89 tlb->PID = 0;
90}
91
92static PowerPCCPU *ppc440_init_xilinx(const char *cpu_type, uint32_t sysclk)
93{
94 PowerPCCPU *cpu;
95 CPUPPCState *env;
96 DeviceState *uicdev;
97 SysBusDevice *uicsbd;
98
99 cpu = POWERPC_CPU(cpu_create(cpu_type));
100 env = &cpu->env;
101
102 ppc_booke_timers_init(cpu, sysclk, 0);
103
104 ppc_dcr_init(env, NULL, NULL);
105
106
107 uicdev = qdev_new(TYPE_PPC_UIC);
108 uicsbd = SYS_BUS_DEVICE(uicdev);
109
110 object_property_set_link(OBJECT(uicdev), "cpu", OBJECT(cpu),
111 &error_fatal);
112 sysbus_realize_and_unref(uicsbd, &error_fatal);
113
114 sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_INT,
115 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]);
116 sysbus_connect_irq(uicsbd, PPCUIC_OUTPUT_CINT,
117 ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]);
118
119
120 return cpu;
121}
122
123static void main_cpu_reset(void *opaque)
124{
125 PowerPCCPU *cpu = opaque;
126 CPUPPCState *env = &cpu->env;
127 struct boot_info *bi = env->load_info;
128
129 cpu_reset(CPU(cpu));
130
131
132
133
134
135
136
137
138
139 env->gpr[1] = (16 * MiB) - 8;
140
141 env->gpr[3] = bi->fdt;
142 env->nip = bi->bootstrap_pc;
143
144
145 mmubooke_create_initial_mapping(env, 0, 0);
146 env->gpr[6] = tswap32(EPAPR_MAGIC);
147 env->gpr[7] = bi->ima_size;
148}
149
150#define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
151static int xilinx_load_device_tree(hwaddr addr,
152 uint32_t ramsize,
153 hwaddr initrd_base,
154 hwaddr initrd_size,
155 const char *kernel_cmdline)
156{
157 char *path;
158 int fdt_size;
159 void *fdt = NULL;
160 int r;
161 const char *dtb_filename;
162
163 dtb_filename = current_machine->dtb;
164 if (dtb_filename) {
165 fdt = load_device_tree(dtb_filename, &fdt_size);
166 if (!fdt) {
167 error_report("Error while loading device tree file '%s'",
168 dtb_filename);
169 }
170 } else {
171
172 fdt = load_device_tree("ppc.dtb", &fdt_size);
173 if (!fdt) {
174 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
175 if (path) {
176 fdt = load_device_tree(path, &fdt_size);
177 g_free(path);
178 }
179 }
180 }
181 if (!fdt) {
182 return 0;
183 }
184
185 r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
186 initrd_base);
187 if (r < 0) {
188 error_report("couldn't set /chosen/linux,initrd-start");
189 }
190
191 r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
192 (initrd_base + initrd_size));
193 if (r < 0) {
194 error_report("couldn't set /chosen/linux,initrd-end");
195 }
196
197 r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
198 if (r < 0)
199 fprintf(stderr, "couldn't set /chosen/bootargs\n");
200 cpu_physical_memory_write(addr, fdt, fdt_size);
201 g_free(fdt);
202 return fdt_size;
203}
204
205static void virtex_init(MachineState *machine)
206{
207 const char *kernel_filename = machine->kernel_filename;
208 const char *kernel_cmdline = machine->kernel_cmdline;
209 hwaddr initrd_base = 0;
210 int initrd_size = 0;
211 MemoryRegion *address_space_mem = get_system_memory();
212 DeviceState *dev;
213 PowerPCCPU *cpu;
214 CPUPPCState *env;
215 hwaddr ram_base = 0;
216 DriveInfo *dinfo;
217 qemu_irq irq[32], *cpu_irq;
218 int kernel_size;
219 int i;
220
221
222 cpu = ppc440_init_xilinx(machine->cpu_type, 400000000);
223 env = &cpu->env;
224
225 if (env->mmu_model != POWERPC_MMU_BOOKE) {
226 error_report("MMU model %i not supported by this machine",
227 env->mmu_model);
228 exit(1);
229 }
230
231 qemu_register_reset(main_cpu_reset, cpu);
232
233 memory_region_add_subregion(address_space_mem, ram_base, machine->ram);
234
235 dinfo = drive_get(IF_PFLASH, 0, 0);
236 pflash_cfi01_register(PFLASH_BASEADDR, "virtex.flash", FLASH_SIZE,
237 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
238 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1);
239
240 cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
241 dev = qdev_new("xlnx.xps-intc");
242 qdev_prop_set_uint32(dev, "kind-of-intr", 0);
243 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
244 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
245 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq[0]);
246 for (i = 0; i < 32; i++) {
247 irq[i] = qdev_get_gpio_in(dev, i);
248 }
249
250 serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ],
251 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN);
252
253
254 dev = qdev_new("xlnx.xps-timer");
255 qdev_prop_set_uint32(dev, "one-timer-only", 0);
256 qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000);
257 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
258 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
259 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);
260
261 if (kernel_filename) {
262 uint64_t entry, high;
263 hwaddr boot_offset;
264
265
266 kernel_size = load_elf(kernel_filename, NULL, NULL, NULL,
267 &entry, NULL, &high, NULL, 1, PPC_ELF_MACHINE,
268 0, 0);
269 boot_info.bootstrap_pc = entry & 0x00ffffff;
270
271 if (kernel_size < 0) {
272 boot_offset = 0x1200000;
273
274 kernel_size = load_image_targphys(kernel_filename,
275 boot_offset,
276 machine->ram_size);
277 boot_info.bootstrap_pc = boot_offset;
278 high = boot_info.bootstrap_pc + kernel_size + 8192;
279 }
280
281 boot_info.ima_size = kernel_size;
282
283
284 if (machine->initrd_filename) {
285 initrd_base = high = ROUND_UP(high, 4);
286 initrd_size = load_image_targphys(machine->initrd_filename,
287 high, machine->ram_size - high);
288
289 if (initrd_size < 0) {
290 error_report("couldn't load ram disk '%s'",
291 machine->initrd_filename);
292 exit(1);
293 }
294 high = ROUND_UP(high + initrd_size, 4);
295 }
296
297
298 boot_info.fdt = high + (8192 * 2);
299 boot_info.fdt &= ~8191;
300
301 xilinx_load_device_tree(boot_info.fdt, machine->ram_size,
302 initrd_base, initrd_size,
303 kernel_cmdline);
304 }
305 env->load_info = &boot_info;
306}
307
308static void virtex_machine_init(MachineClass *mc)
309{
310 mc->desc = "Xilinx Virtex ML507 reference design";
311 mc->init = virtex_init;
312 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("440-xilinx");
313 mc->default_ram_id = "ram";
314}
315
316DEFINE_MACHINE("virtex-ml507", virtex_machine_init)
317
