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21#include "qemu/osdep.h"
22#include "qemu-common.h"
23#include "qemu/datadir.h"
24#include "qemu/units.h"
25#include "qapi/error.h"
26#include "cpu.h"
27#include "hw/clock.h"
28#include "net/net.h"
29#include "hw/boards.h"
30#include "hw/i2c/smbus_eeprom.h"
31#include "hw/block/flash.h"
32#include "hw/mips/mips.h"
33#include "hw/mips/bootloader.h"
34#include "hw/mips/cpudevs.h"
35#include "hw/pci/pci.h"
36#include "qemu/log.h"
37#include "hw/loader.h"
38#include "hw/ide/pci.h"
39#include "hw/qdev-properties.h"
40#include "elf.h"
41#include "hw/isa/vt82c686.h"
42#include "exec/address-spaces.h"
43#include "sysemu/qtest.h"
44#include "sysemu/reset.h"
45#include "sysemu/sysemu.h"
46#include "qemu/error-report.h"
47
48#define ENVP_PADDR 0x2000
49#define ENVP_VADDR cpu_mips_phys_to_kseg0(NULL, ENVP_PADDR)
50#define ENVP_NB_ENTRIES 16
51#define ENVP_ENTRY_SIZE 256
52
53
54#define BIOS_SIZE (512 * KiB)
55#define MAX_IDE_BUS 2
56
57
58
59
60
61
62
63#define FULOONG_BIOSNAME "pmon_2e.bin"
64
65
66#define FULOONG2E_VIA_SLOT 5
67#define FULOONG2E_ATI_SLOT 6
68#define FULOONG2E_RTL8139_SLOT 7
69
70static struct _loaderparams {
71 int ram_size;
72 const char *kernel_filename;
73 const char *kernel_cmdline;
74 const char *initrd_filename;
75} loaderparams;
76
77static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t *prom_buf, int index,
78 const char *string, ...)
79{
80 va_list ap;
81 int32_t table_addr;
82
83 if (index >= ENVP_NB_ENTRIES) {
84 return;
85 }
86
87 if (string == NULL) {
88 prom_buf[index] = 0;
89 return;
90 }
91
92 table_addr = sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
93 prom_buf[index] = tswap32(ENVP_VADDR + table_addr);
94
95 va_start(ap, string);
96 vsnprintf((char *)prom_buf + table_addr, ENVP_ENTRY_SIZE, string, ap);
97 va_end(ap);
98}
99
100static uint64_t load_kernel(MIPSCPU *cpu)
101{
102 uint64_t kernel_entry, kernel_high, initrd_size;
103 int index = 0;
104 long kernel_size;
105 ram_addr_t initrd_offset;
106 uint32_t *prom_buf;
107 long prom_size;
108
109 kernel_size = load_elf(loaderparams.kernel_filename, NULL,
110 cpu_mips_kseg0_to_phys, NULL,
111 &kernel_entry, NULL,
112 &kernel_high, NULL,
113 0, EM_MIPS, 1, 0);
114 if (kernel_size < 0) {
115 error_report("could not load kernel '%s': %s",
116 loaderparams.kernel_filename,
117 load_elf_strerror(kernel_size));
118 exit(1);
119 }
120
121
122 initrd_size = 0;
123 initrd_offset = 0;
124 if (loaderparams.initrd_filename) {
125 initrd_size = get_image_size(loaderparams.initrd_filename);
126 if (initrd_size > 0) {
127 initrd_offset = ROUND_UP(kernel_high, INITRD_PAGE_SIZE);
128 if (initrd_offset + initrd_size > loaderparams.ram_size) {
129 error_report("memory too small for initial ram disk '%s'",
130 loaderparams.initrd_filename);
131 exit(1);
132 }
133 initrd_size = load_image_targphys(loaderparams.initrd_filename,
134 initrd_offset,
135 loaderparams.ram_size - initrd_offset);
136 }
137 if (initrd_size == (target_ulong) -1) {
138 error_report("could not load initial ram disk '%s'",
139 loaderparams.initrd_filename);
140 exit(1);
141 }
142 }
143
144
145 prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE);
146 prom_buf = g_malloc(prom_size);
147
148 prom_set(prom_buf, index++, "%s", loaderparams.kernel_filename);
149 if (initrd_size > 0) {
150 prom_set(prom_buf, index++,
151 "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s",
152 cpu_mips_phys_to_kseg0(NULL, initrd_offset),
153 initrd_size, loaderparams.kernel_cmdline);
154 } else {
155 prom_set(prom_buf, index++, "%s", loaderparams.kernel_cmdline);
156 }
157
158
159 prom_set(prom_buf, index++, "busclock=33000000");
160 prom_set(prom_buf, index++, "cpuclock=%u", clock_get_hz(cpu->clock));
161 prom_set(prom_buf, index++, "memsize=%"PRIi64, loaderparams.ram_size / MiB);
162 prom_set(prom_buf, index++, NULL);
163
164 rom_add_blob_fixed("prom", prom_buf, prom_size, ENVP_PADDR);
165
166 g_free(prom_buf);
167 return kernel_entry;
168}
169
170static void write_bootloader(CPUMIPSState *env, uint8_t *base,
171 uint64_t kernel_addr)
172{
173 uint32_t *p;
174
175
176 p = (uint32_t *)base;
177
178
179 stl_p(p++, 0x0bf00010);
180
181 stl_p(p++, 0x00000000);
182
183
184 p = (uint32_t *)(base + 0x040);
185
186 bl_gen_jump_kernel(&p, ENVP_VADDR - 64, 2, ENVP_VADDR, ENVP_VADDR + 8,
187 loaderparams.ram_size, 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
202static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc,
203 I2CBus **i2c_bus)
204{
205 PCIDevice *dev;
206
207 dev = pci_create_simple_multifunction(pci_bus, PCI_DEVFN(slot, 0), true,
208 TYPE_VT82C686B_ISA);
209 qdev_connect_gpio_out(DEVICE(dev), 0, intc);
210
211 dev = pci_create_simple(pci_bus, PCI_DEVFN(slot, 1), "via-ide");
212 pci_ide_create_devs(dev);
213
214 pci_create_simple(pci_bus, PCI_DEVFN(slot, 2), "vt82c686b-usb-uhci");
215 pci_create_simple(pci_bus, PCI_DEVFN(slot, 3), "vt82c686b-usb-uhci");
216
217 dev = pci_create_simple(pci_bus, PCI_DEVFN(slot, 4), TYPE_VT82C686B_PM);
218 *i2c_bus = I2C_BUS(qdev_get_child_bus(DEVICE(dev), "i2c"));
219
220
221 pci_create_simple(pci_bus, PCI_DEVFN(slot, 5), TYPE_VIA_AC97);
222 pci_create_simple(pci_bus, PCI_DEVFN(slot, 6), TYPE_VIA_MC97);
223}
224
225
226static void network_init(PCIBus *pci_bus)
227{
228 int i;
229
230 for (i = 0; i < nb_nics; i++) {
231 NICInfo *nd = &nd_table[i];
232 const char *default_devaddr = NULL;
233
234 if (i == 0 && (!nd->model || strcmp(nd->model, "rtl8139") == 0)) {
235
236 default_devaddr = "07";
237 }
238
239 pci_nic_init_nofail(nd, pci_bus, "rtl8139", default_devaddr);
240 }
241}
242
243static void mips_fuloong2e_init(MachineState *machine)
244{
245 const char *kernel_filename = machine->kernel_filename;
246 const char *kernel_cmdline = machine->kernel_cmdline;
247 const char *initrd_filename = machine->initrd_filename;
248 char *filename;
249 MemoryRegion *address_space_mem = get_system_memory();
250 MemoryRegion *bios = g_new(MemoryRegion, 1);
251 long bios_size;
252 uint8_t *spd_data;
253 uint64_t kernel_entry;
254 PCIDevice *pci_dev;
255 PCIBus *pci_bus;
256 I2CBus *smbus;
257 Clock *cpuclk;
258 MIPSCPU *cpu;
259 CPUMIPSState *env;
260 DeviceState *dev;
261
262 cpuclk = clock_new(OBJECT(machine), "cpu-refclk");
263 clock_set_hz(cpuclk, 533080000);
264
265
266 cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk);
267 env = &cpu->env;
268
269 qemu_register_reset(main_cpu_reset, cpu);
270
271
272 if (machine->ram_size != 256 * MiB) {
273 error_report("Invalid RAM size, should be 256MB");
274 exit(EXIT_FAILURE);
275 }
276 memory_region_add_subregion(address_space_mem, 0, machine->ram);
277
278
279 memory_region_init_rom(bios, NULL, "fuloong2e.bios", BIOS_SIZE,
280 &error_fatal);
281 memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);
282
283
284
285
286
287
288 if (kernel_filename) {
289 loaderparams.ram_size = machine->ram_size;
290 loaderparams.kernel_filename = kernel_filename;
291 loaderparams.kernel_cmdline = kernel_cmdline;
292 loaderparams.initrd_filename = initrd_filename;
293 kernel_entry = load_kernel(cpu);
294 write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);
295 } else {
296 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS,
297 machine->firmware ?: FULOONG_BIOSNAME);
298 if (filename) {
299 bios_size = load_image_targphys(filename, 0x1fc00000LL,
300 BIOS_SIZE);
301 g_free(filename);
302 } else {
303 bios_size = -1;
304 }
305
306 if ((bios_size < 0 || bios_size > BIOS_SIZE) &&
307 machine->firmware && !qtest_enabled()) {
308 error_report("Could not load MIPS bios '%s'", machine->firmware);
309 exit(1);
310 }
311 }
312
313
314 cpu_mips_irq_init_cpu(cpu);
315 cpu_mips_clock_init(cpu);
316
317
318 pci_bus = bonito_init((qemu_irq *)&(env->irq[2]));
319
320
321 vt82c686b_southbridge_init(pci_bus, FULOONG2E_VIA_SLOT, env->irq[5],
322 &smbus);
323
324
325 if (vga_interface_type != VGA_NONE) {
326 pci_dev = pci_new(-1, "ati-vga");
327 dev = DEVICE(pci_dev);
328 qdev_prop_set_uint32(dev, "vgamem_mb", 16);
329 qdev_prop_set_uint16(dev, "x-device-id", 0x5159);
330 pci_realize_and_unref(pci_dev, pci_bus, &error_fatal);
331 }
332
333
334 spd_data = spd_data_generate(DDR, machine->ram_size);
335 smbus_eeprom_init_one(smbus, 0x50, spd_data);
336
337
338 network_init(pci_bus);
339}
340
341static void mips_fuloong2e_machine_init(MachineClass *mc)
342{
343 mc->desc = "Fuloong 2e mini pc";
344 mc->init = mips_fuloong2e_init;
345 mc->block_default_type = IF_IDE;
346 mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E");
347 mc->default_ram_size = 256 * MiB;
348 mc->default_ram_id = "fuloong2e.ram";
349 mc->minimum_page_bits = 14;
350}
351
352DEFINE_MACHINE("fuloong2e", mips_fuloong2e_machine_init)
353
