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21#include "qemu/osdep.h"
22#include "qemu/datadir.h"
23#include "qemu/units.h"
24#include "qapi/error.h"
25#include "cpu.h"
26#include "hw/clock.h"
27#include "net/net.h"
28#include "hw/boards.h"
29#include "hw/i2c/smbus_eeprom.h"
30#include "hw/block/flash.h"
31#include "hw/mips/mips.h"
32#include "hw/mips/bootloader.h"
33#include "hw/mips/cpudevs.h"
34#include "hw/pci/pci.h"
35#include "hw/loader.h"
36#include "hw/ide/pci.h"
37#include "hw/qdev-properties.h"
38#include "elf.h"
39#include "hw/isa/vt82c686.h"
40#include "sysemu/qtest.h"
41#include "sysemu/reset.h"
42#include "sysemu/sysemu.h"
43#include "qemu/error-report.h"
44
45#define ENVP_PADDR 0x2000
46#define ENVP_VADDR cpu_mips_phys_to_kseg0(NULL, ENVP_PADDR)
47#define ENVP_NB_ENTRIES 16
48#define ENVP_ENTRY_SIZE 256
49
50
51#define BIOS_SIZE (512 * KiB)
52
53
54
55
56
57
58
59#define FULOONG_BIOSNAME "pmon_2e.bin"
60
61
62#define FULOONG2E_VIA_SLOT 5
63#define FULOONG2E_ATI_SLOT 6
64#define FULOONG2E_RTL8139_SLOT 7
65
66static struct _loaderparams {
67 int ram_size;
68 const char *kernel_filename;
69 const char *kernel_cmdline;
70 const char *initrd_filename;
71} loaderparams;
72
73static void G_GNUC_PRINTF(3, 4) prom_set(uint32_t *prom_buf, int index,
74 const char *string, ...)
75{
76 va_list ap;
77 int32_t table_addr;
78
79 if (index >= ENVP_NB_ENTRIES) {
80 return;
81 }
82
83 if (string == NULL) {
84 prom_buf[index] = 0;
85 return;
86 }
87
88 table_addr = sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
89 prom_buf[index] = tswap32(ENVP_VADDR + table_addr);
90
91 va_start(ap, string);
92 vsnprintf((char *)prom_buf + table_addr, ENVP_ENTRY_SIZE, string, ap);
93 va_end(ap);
94}
95
96static uint64_t load_kernel(MIPSCPU *cpu)
97{
98 uint64_t kernel_entry, kernel_high, initrd_size;
99 int index = 0;
100 long kernel_size;
101 ram_addr_t initrd_offset;
102 uint32_t *prom_buf;
103 long prom_size;
104
105 kernel_size = load_elf(loaderparams.kernel_filename, NULL,
106 cpu_mips_kseg0_to_phys, NULL,
107 &kernel_entry, NULL,
108 &kernel_high, NULL,
109 0, EM_MIPS, 1, 0);
110 if (kernel_size < 0) {
111 error_report("could not load kernel '%s': %s",
112 loaderparams.kernel_filename,
113 load_elf_strerror(kernel_size));
114 exit(1);
115 }
116
117
118 initrd_size = 0;
119 initrd_offset = 0;
120 if (loaderparams.initrd_filename) {
121 initrd_size = get_image_size(loaderparams.initrd_filename);
122 if (initrd_size > 0) {
123 initrd_offset = ROUND_UP(kernel_high, INITRD_PAGE_SIZE);
124 if (initrd_offset + initrd_size > loaderparams.ram_size) {
125 error_report("memory too small for initial ram disk '%s'",
126 loaderparams.initrd_filename);
127 exit(1);
128 }
129 initrd_size = load_image_targphys(loaderparams.initrd_filename,
130 initrd_offset,
131 loaderparams.ram_size - initrd_offset);
132 }
133 if (initrd_size == (target_ulong) -1) {
134 error_report("could not load initial ram disk '%s'",
135 loaderparams.initrd_filename);
136 exit(1);
137 }
138 }
139
140
141 prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE);
142 prom_buf = g_malloc(prom_size);
143
144 prom_set(prom_buf, index++, "%s", loaderparams.kernel_filename);
145 if (initrd_size > 0) {
146 prom_set(prom_buf, index++,
147 "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s",
148 cpu_mips_phys_to_kseg0(NULL, initrd_offset),
149 initrd_size, loaderparams.kernel_cmdline);
150 } else {
151 prom_set(prom_buf, index++, "%s", loaderparams.kernel_cmdline);
152 }
153
154
155 prom_set(prom_buf, index++, "busclock=33000000");
156 prom_set(prom_buf, index++, "cpuclock=%u", clock_get_hz(cpu->clock));
157 prom_set(prom_buf, index++, "memsize=%"PRIi64, loaderparams.ram_size / MiB);
158 prom_set(prom_buf, index++, NULL);
159
160 rom_add_blob_fixed("prom", prom_buf, prom_size, ENVP_PADDR);
161
162 g_free(prom_buf);
163 return kernel_entry;
164}
165
166static void write_bootloader(CPUMIPSState *env, uint8_t *base,
167 uint64_t kernel_addr)
168{
169 uint32_t *p;
170
171
172 p = (uint32_t *)base;
173
174
175 stl_p(p++, 0x0bf00010);
176
177 stl_p(p++, 0x00000000);
178
179
180 p = (uint32_t *)(base + 0x040);
181
182 bl_gen_jump_kernel((void **)&p,
183 true, ENVP_VADDR - 64,
184 true, 2, true, ENVP_VADDR,
185 true, ENVP_VADDR + 8,
186 true, loaderparams.ram_size,
187 kernel_addr);
188}
189
190static void main_cpu_reset(void *opaque)
191{
192 MIPSCPU *cpu = opaque;
193 CPUMIPSState *env = &cpu->env;
194
195 cpu_reset(CPU(cpu));
196
197 if (loaderparams.kernel_filename) {
198 env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
199 }
200}
201
202
203static void network_init(PCIBus *pci_bus)
204{
205 int i;
206
207 for (i = 0; i < nb_nics; i++) {
208 NICInfo *nd = &nd_table[i];
209 const char *default_devaddr = NULL;
210
211 if (i == 0 && (!nd->model || strcmp(nd->model, "rtl8139") == 0)) {
212
213 default_devaddr = "07";
214 }
215
216 pci_nic_init_nofail(nd, pci_bus, "rtl8139", default_devaddr);
217 }
218}
219
220static void mips_fuloong2e_init(MachineState *machine)
221{
222 const char *kernel_filename = machine->kernel_filename;
223 const char *kernel_cmdline = machine->kernel_cmdline;
224 const char *initrd_filename = machine->initrd_filename;
225 char *filename;
226 MemoryRegion *address_space_mem = get_system_memory();
227 MemoryRegion *bios = g_new(MemoryRegion, 1);
228 long bios_size;
229 uint8_t *spd_data;
230 uint64_t kernel_entry;
231 PCIDevice *pci_dev;
232 PCIBus *pci_bus;
233 I2CBus *smbus;
234 Clock *cpuclk;
235 MIPSCPU *cpu;
236 CPUMIPSState *env;
237 DeviceState *dev;
238
239 cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
240 clock_set_hz(cpuclk, 533080000);
241
242
243 cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
244 env = &cpu->env;
245
246 qemu_register_reset(main_cpu_reset, cpu);
247
248
249 if (machine->ram_size != 256 * MiB) {
250 error_report("Invalid RAM size, should be 256MB");
251 exit(EXIT_FAILURE);
252 }
253 memory_region_add_subregion(address_space_mem, 0, machine->ram);
254
255
256 memory_region_init_rom(bios, NULL, "fuloong2e.bios", BIOS_SIZE,
257 &error_fatal);
258 memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);
259
260
261
262
263
264
265 if (kernel_filename) {
266 loaderparams.ram_size = machine->ram_size;
267 loaderparams.kernel_filename = kernel_filename;
268 loaderparams.kernel_cmdline = kernel_cmdline;
269 loaderparams.initrd_filename = initrd_filename;
270 kernel_entry = load_kernel(cpu);
271 write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);
272 } else {
273 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
274 machine->firmware ?: FULOONG_BIOSNAME);
275 if (filename) {
276 bios_size = load_image_targphys(filename, 0x1fc00000LL,
277 BIOS_SIZE);
278 g_free(filename);
279 } else {
280 bios_size = -1;
281 }
282
283 if ((bios_size < 0 || bios_size > BIOS_SIZE) &&
284 machine->firmware && !qtest_enabled()) {
285 error_report("Could not load MIPS bios '%s'", machine->firmware);
286 exit(1);
287 }
288 }
289
290
291 cpu_mips_irq_init_cpu(cpu);
292 cpu_mips_clock_init(cpu);
293
294
295 pci_bus = bonito_init((qemu_irq *)&(env->irq[2]));
296
297
298 pci_dev = pci_create_simple_multifunction(pci_bus,
299 PCI_DEVFN(FULOONG2E_VIA_SLOT, 0),
300 true, TYPE_VT82C686B_ISA);
301 object_property_add_alias(OBJECT(machine), "rtc-time",
302 object_resolve_path_component(OBJECT(pci_dev),
303 "rtc"),
304 "date");
305 qdev_connect_gpio_out(DEVICE(pci_dev), 0, env->irq[5]);
306
307 dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ide"));
308 pci_ide_create_devs(PCI_DEVICE(dev));
309
310 dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "pm"));
311 smbus = I2C_BUS(qdev_get_child_bus(dev, "i2c"));
312
313
314 if (vga_interface_type != VGA_NONE) {
315 vga_interface_created = true;
316 pci_dev = pci_new(-1, "ati-vga");
317 dev = DEVICE(pci_dev);
318 qdev_prop_set_uint32(dev, "vgamem_mb", 16);
319 qdev_prop_set_uint16(dev, "x-device-id", 0x5159);
320 pci_realize_and_unref(pci_dev, pci_bus, &error_fatal);
321 }
322
323
324 spd_data = spd_data_generate(DDR, machine->ram_size);
325 smbus_eeprom_init_one(smbus, 0x50, spd_data);
326
327
328 network_init(pci_bus);
329}
330
331static void mips_fuloong2e_machine_init(MachineClass *mc)
332{
333 mc->desc = "Fuloong 2e mini pc";
334 mc->init = mips_fuloong2e_init;
335 mc->block_default_type = IF_IDE;
336 mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E");
337 mc->default_ram_size = 256 * MiB;
338 mc->default_ram_id = "fuloong2e.ram";
339 mc->minimum_page_bits = 14;
340}
341
342DEFINE_MACHINE("fuloong2e", mips_fuloong2e_machine_init)
343
