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Commit | Line | Data |
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051c190b | 1 | /* |
c3a09ff6 | 2 | * QEMU fuloong 2e mini pc support |
051c190b HC |
3 | * |
4 | * Copyright (c) 2008 yajin (yajin@vm-kernel.org) | |
5 | * Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn) | |
6 | * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com) | |
7 | * This code is licensed under the GNU GPL v2. | |
6b620ca3 PB |
8 | * |
9 | * Contributions after 2012-01-13 are licensed under the terms of the | |
10 | * GNU GPL, version 2 or (at your option) any later version. | |
051c190b HC |
11 | */ |
12 | ||
13 | /* | |
c3a09ff6 PMD |
14 | * Fuloong 2e mini pc is based on ICT/ST Loongson 2e CPU (MIPS III like, 800MHz) |
15 | * https://www.linux-mips.org/wiki/Fuloong_2E | |
051c190b | 16 | * |
94a37806 JY |
17 | * Loongson 2e manuals: |
18 | * https://github.com/loongson-community/docs/tree/master/2E | |
051c190b HC |
19 | */ |
20 | ||
c684822a | 21 | #include "qemu/osdep.h" |
2c65db5e | 22 | #include "qemu/datadir.h" |
be01029e | 23 | #include "qemu/units.h" |
da34e65c | 24 | #include "qapi/error.h" |
be9f6d11 | 25 | #include "cpu.h" |
3ca7639f | 26 | #include "hw/clock.h" |
1422e32d | 27 | #include "net/net.h" |
83c9f4ca | 28 | #include "hw/boards.h" |
93198b6c | 29 | #include "hw/i2c/smbus_eeprom.h" |
0d09e41a PB |
30 | #include "hw/block/flash.h" |
31 | #include "hw/mips/mips.h" | |
4d0c59fa | 32 | #include "hw/mips/bootloader.h" |
83c9f4ca | 33 | #include "hw/pci/pci.h" |
83c9f4ca | 34 | #include "hw/loader.h" |
c06cde44 | 35 | #include "hw/ide/pci.h" |
3dc31cb8 | 36 | #include "hw/qdev-properties.h" |
051c190b | 37 | #include "elf.h" |
0d09e41a | 38 | #include "hw/isa/vt82c686.h" |
4a7ed999 | 39 | #include "sysemu/qtest.h" |
71e8a915 | 40 | #include "sysemu/reset.h" |
3dc31cb8 | 41 | #include "sysemu/sysemu.h" |
2e985fe0 | 42 | #include "qemu/error-report.h" |
051c190b | 43 | |
df055c65 JY |
44 | #define ENVP_PADDR 0x2000 |
45 | #define ENVP_VADDR cpu_mips_phys_to_kseg0(NULL, ENVP_PADDR) | |
a4cbd0da AM |
46 | #define ENVP_NB_ENTRIES 16 |
47 | #define ENVP_ENTRY_SIZE 256 | |
051c190b | 48 | |
c3a09ff6 | 49 | /* Fuloong 2e has a 512k flash: Winbond W39L040AP70Z */ |
a4cbd0da | 50 | #define BIOS_SIZE (512 * KiB) |
051c190b HC |
51 | |
52 | /* | |
53 | * PMON is not part of qemu and released with BSD license, anyone | |
54 | * who want to build a pmon binary please first git-clone the source | |
55 | * from the git repository at: | |
94a37806 | 56 | * https://github.com/loongson-community/pmon |
051c190b | 57 | */ |
c3a09ff6 | 58 | #define FULOONG_BIOSNAME "pmon_2e.bin" |
051c190b | 59 | |
c3a09ff6 PMD |
60 | /* PCI SLOT in Fuloong 2e */ |
61 | #define FULOONG2E_VIA_SLOT 5 | |
62 | #define FULOONG2E_ATI_SLOT 6 | |
63 | #define FULOONG2E_RTL8139_SLOT 7 | |
051c190b | 64 | |
051c190b HC |
65 | static struct _loaderparams { |
66 | int ram_size; | |
67 | const char *kernel_filename; | |
68 | const char *kernel_cmdline; | |
69 | const char *initrd_filename; | |
70 | } loaderparams; | |
71 | ||
9edc6313 | 72 | static void G_GNUC_PRINTF(3, 4) prom_set(uint32_t *prom_buf, int index, |
8b7968f7 | 73 | const char *string, ...) |
051c190b HC |
74 | { |
75 | va_list ap; | |
76 | int32_t table_addr; | |
77 | ||
a4cbd0da | 78 | if (index >= ENVP_NB_ENTRIES) { |
051c190b | 79 | return; |
a4cbd0da | 80 | } |
051c190b HC |
81 | |
82 | if (string == NULL) { | |
83 | prom_buf[index] = 0; | |
84 | return; | |
85 | } | |
86 | ||
87 | table_addr = sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE; | |
df055c65 | 88 | prom_buf[index] = tswap32(ENVP_VADDR + table_addr); |
051c190b HC |
89 | |
90 | va_start(ap, string); | |
91 | vsnprintf((char *)prom_buf + table_addr, ENVP_ENTRY_SIZE, string, ap); | |
92 | va_end(ap); | |
93 | } | |
94 | ||
e41f27ec | 95 | static uint64_t load_kernel(MIPSCPU *cpu) |
051c190b | 96 | { |
dde98994 | 97 | uint64_t kernel_entry, kernel_high, initrd_size; |
051c190b | 98 | int index = 0; |
f3839fda | 99 | long kernel_size; |
051c190b HC |
100 | ram_addr_t initrd_offset; |
101 | uint32_t *prom_buf; | |
102 | long prom_size; | |
103 | ||
4366e1db LM |
104 | kernel_size = load_elf(loaderparams.kernel_filename, NULL, |
105 | cpu_mips_kseg0_to_phys, NULL, | |
dde98994 JY |
106 | &kernel_entry, NULL, |
107 | &kernel_high, NULL, | |
617160c9 | 108 | 0, EM_MIPS, 1, 0); |
3ee3122c | 109 | if (kernel_size < 0) { |
bd6e1d81 | 110 | error_report("could not load kernel '%s': %s", |
3ee3122c AJ |
111 | loaderparams.kernel_filename, |
112 | load_elf_strerror(kernel_size)); | |
051c190b HC |
113 | exit(1); |
114 | } | |
115 | ||
116 | /* load initrd */ | |
117 | initrd_size = 0; | |
118 | initrd_offset = 0; | |
119 | if (loaderparams.initrd_filename) { | |
a4cbd0da | 120 | initrd_size = get_image_size(loaderparams.initrd_filename); |
051c190b | 121 | if (initrd_size > 0) { |
acab36ca | 122 | initrd_offset = ROUND_UP(kernel_high, INITRD_PAGE_SIZE); |
74d6bf85 | 123 | if (initrd_offset + initrd_size > loaderparams.ram_size) { |
bd6e1d81 AF |
124 | error_report("memory too small for initial ram disk '%s'", |
125 | loaderparams.initrd_filename); | |
051c190b HC |
126 | exit(1); |
127 | } | |
128 | initrd_size = load_image_targphys(loaderparams.initrd_filename, | |
a4cbd0da | 129 | initrd_offset, |
74d6bf85 | 130 | loaderparams.ram_size - initrd_offset); |
051c190b HC |
131 | } |
132 | if (initrd_size == (target_ulong) -1) { | |
bd6e1d81 AF |
133 | error_report("could not load initial ram disk '%s'", |
134 | loaderparams.initrd_filename); | |
051c190b HC |
135 | exit(1); |
136 | } | |
137 | } | |
138 | ||
139 | /* Setup prom parameters. */ | |
140 | prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE); | |
7267c094 | 141 | prom_buf = g_malloc(prom_size); |
051c190b | 142 | |
1ed1139d | 143 | prom_set(prom_buf, index++, "%s", loaderparams.kernel_filename); |
051c190b | 144 | if (initrd_size > 0) { |
a4cbd0da AM |
145 | prom_set(prom_buf, index++, |
146 | "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s", | |
147 | cpu_mips_phys_to_kseg0(NULL, initrd_offset), | |
148 | initrd_size, loaderparams.kernel_cmdline); | |
051c190b | 149 | } else { |
1ed1139d | 150 | prom_set(prom_buf, index++, "%s", loaderparams.kernel_cmdline); |
051c190b HC |
151 | } |
152 | ||
153 | /* Setup minimum environment variables */ | |
154 | prom_set(prom_buf, index++, "busclock=33000000"); | |
e41f27ec | 155 | prom_set(prom_buf, index++, "cpuclock=%u", clock_get_hz(cpu->clock)); |
be01029e | 156 | prom_set(prom_buf, index++, "memsize=%"PRIi64, loaderparams.ram_size / MiB); |
051c190b HC |
157 | prom_set(prom_buf, index++, NULL); |
158 | ||
df055c65 | 159 | rom_add_blob_fixed("prom", prom_buf, prom_size, ENVP_PADDR); |
051c190b | 160 | |
3ad9fd5a | 161 | g_free(prom_buf); |
051c190b HC |
162 | return kernel_entry; |
163 | } | |
164 | ||
a4cbd0da | 165 | static void write_bootloader(CPUMIPSState *env, uint8_t *base, |
dde98994 | 166 | uint64_t kernel_addr) |
051c190b HC |
167 | { |
168 | uint32_t *p; | |
169 | ||
170 | /* Small bootloader */ | |
a4cbd0da | 171 | p = (uint32_t *)base; |
051c190b | 172 | |
a4cbd0da AM |
173 | /* j 0x1fc00040 */ |
174 | stl_p(p++, 0x0bf00010); | |
175 | /* nop */ | |
176 | stl_p(p++, 0x00000000); | |
051c190b HC |
177 | |
178 | /* Second part of the bootloader */ | |
a4cbd0da AM |
179 | p = (uint32_t *)(base + 0x040); |
180 | ||
cd5066f8 | 181 | bl_gen_jump_kernel((void **)&p, |
36d7487b PMD |
182 | true, ENVP_VADDR - 64, |
183 | true, 2, true, ENVP_VADDR, | |
184 | true, ENVP_VADDR + 8, | |
185 | true, loaderparams.ram_size, | |
186 | kernel_addr); | |
051c190b HC |
187 | } |
188 | ||
051c190b HC |
189 | static void main_cpu_reset(void *opaque) |
190 | { | |
800cf598 AF |
191 | MIPSCPU *cpu = opaque; |
192 | CPUMIPSState *env = &cpu->env; | |
051c190b | 193 | |
800cf598 | 194 | cpu_reset(CPU(cpu)); |
051c190b HC |
195 | /* TODO: 2E reset stuff */ |
196 | if (loaderparams.kernel_filename) { | |
197 | env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL)); | |
198 | } | |
199 | } | |
200 | ||
051c190b | 201 | /* Network support */ |
a4cbd0da | 202 | static void network_init(PCIBus *pci_bus) |
051c190b | 203 | { |
8e437561 DW |
204 | /* The Fuloong board has a RTL8139 card using PCI SLOT 7 */ |
205 | pci_init_nic_in_slot(pci_bus, "rtl8139", NULL, "07"); | |
206 | pci_init_nic_devices(pci_bus, "rtl8139"); | |
051c190b HC |
207 | } |
208 | ||
c3a09ff6 | 209 | static void mips_fuloong2e_init(MachineState *machine) |
051c190b | 210 | { |
3ef96221 MA |
211 | const char *kernel_filename = machine->kernel_filename; |
212 | const char *kernel_cmdline = machine->kernel_cmdline; | |
213 | const char *initrd_filename = machine->initrd_filename; | |
051c190b | 214 | char *filename; |
13faf2a7 | 215 | MemoryRegion *address_space_mem = get_system_memory(); |
13faf2a7 | 216 | MemoryRegion *bios = g_new(MemoryRegion, 1); |
093209cd | 217 | long bios_size; |
fb1b0fcc | 218 | uint8_t *spd_data; |
dde98994 | 219 | uint64_t kernel_entry; |
9307d06d | 220 | PCIDevice *pci_dev; |
051c190b | 221 | PCIBus *pci_bus; |
a5c82852 | 222 | I2CBus *smbus; |
3ca7639f | 223 | Clock *cpuclk; |
f0f80366 | 224 | MIPSCPU *cpu; |
61c56c8c | 225 | CPUMIPSState *env; |
ff243cff | 226 | DeviceState *dev; |
051c190b | 227 | |
3ca7639f PMD |
228 | cpuclk = clock_new(OBJECT(machine), "cpu-refclk"); |
229 | clock_set_hz(cpuclk, 533080000); /* ~533 MHz */ | |
230 | ||
051c190b | 231 | /* init CPUs */ |
3ca7639f | 232 | cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk); |
f0f80366 | 233 | env = &cpu->env; |
051c190b | 234 | |
800cf598 | 235 | qemu_register_reset(main_cpu_reset, cpu); |
051c190b | 236 | |
fb1b0fcc | 237 | /* TODO: support more than 256M RAM as highmem */ |
dc7b6ba5 IM |
238 | if (machine->ram_size != 256 * MiB) { |
239 | error_report("Invalid RAM size, should be 256MB"); | |
240 | exit(EXIT_FAILURE); | |
241 | } | |
3e5fe8dd | 242 | memory_region_add_subregion(address_space_mem, 0, machine->ram); |
051c190b | 243 | |
3e5fe8dd | 244 | /* Boot ROM */ |
c3a09ff6 | 245 | memory_region_init_rom(bios, NULL, "fuloong2e.bios", BIOS_SIZE, |
f8ed85ac | 246 | &error_fatal); |
13faf2a7 | 247 | memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios); |
051c190b | 248 | |
a4cbd0da AM |
249 | /* |
250 | * We do not support flash operation, just loading pmon.bin as raw BIOS. | |
251 | * Please use -L to set the BIOS path and -bios to set bios name. | |
252 | */ | |
051c190b HC |
253 | |
254 | if (kernel_filename) { | |
dc7b6ba5 | 255 | loaderparams.ram_size = machine->ram_size; |
051c190b HC |
256 | loaderparams.kernel_filename = kernel_filename; |
257 | loaderparams.kernel_cmdline = kernel_cmdline; | |
258 | loaderparams.initrd_filename = initrd_filename; | |
e41f27ec | 259 | kernel_entry = load_kernel(cpu); |
13faf2a7 | 260 | write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry); |
051c190b | 261 | } else { |
a4374f86 | 262 | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, |
59588bea | 263 | machine->firmware ?: FULOONG_BIOSNAME); |
051c190b HC |
264 | if (filename) { |
265 | bios_size = load_image_targphys(filename, 0x1fc00000LL, | |
266 | BIOS_SIZE); | |
7267c094 | 267 | g_free(filename); |
051c190b HC |
268 | } else { |
269 | bios_size = -1; | |
270 | } | |
271 | ||
4a7ed999 | 272 | if ((bios_size < 0 || bios_size > BIOS_SIZE) && |
59588bea PB |
273 | machine->firmware && !qtest_enabled()) { |
274 | error_report("Could not load MIPS bios '%s'", machine->firmware); | |
2e985fe0 | 275 | exit(1); |
33dd2983 | 276 | } |
051c190b HC |
277 | } |
278 | ||
279 | /* Init internal devices */ | |
5a975d43 PB |
280 | cpu_mips_irq_init_cpu(cpu); |
281 | cpu_mips_clock_init(cpu); | |
051c190b | 282 | |
051c190b HC |
283 | /* North bridge, Bonito --> IP2 */ |
284 | pci_bus = bonito_init((qemu_irq *)&(env->irq[2])); | |
285 | ||
5c961c3f | 286 | /* South bridge -> IP5 */ |
9dcb64c9 PB |
287 | pci_dev = pci_new_multifunction(PCI_DEVFN(FULOONG2E_VIA_SLOT, 0), |
288 | TYPE_VT82C686B_ISA); | |
289 | ||
290 | /* Set properties on individual devices before realizing the south bridge */ | |
291 | if (machine->audiodev) { | |
292 | dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ac97")); | |
293 | qdev_prop_set_string(dev, "audiodev", machine->audiodev); | |
294 | } | |
295 | ||
296 | pci_realize_and_unref(pci_dev, pci_bus, &error_abort); | |
297 | ||
ff9105da BB |
298 | object_property_add_alias(OBJECT(machine), "rtc-time", |
299 | object_resolve_path_component(OBJECT(pci_dev), | |
300 | "rtc"), | |
301 | "date"); | |
4ff5328b BB |
302 | qdev_connect_gpio_out(DEVICE(pci_dev), 0, env->irq[5]); |
303 | ||
304 | dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "ide")); | |
305 | pci_ide_create_devs(PCI_DEVICE(dev)); | |
306 | ||
307 | dev = DEVICE(object_resolve_path_component(OBJECT(pci_dev), "pm")); | |
308 | smbus = I2C_BUS(qdev_get_child_bus(dev, "i2c")); | |
051c190b | 309 | |
ff243cff | 310 | /* GPU */ |
78c37d88 | 311 | if (vga_interface_type != VGA_NONE) { |
f9bcb2d6 | 312 | vga_interface_created = true; |
9307d06d MA |
313 | pci_dev = pci_new(-1, "ati-vga"); |
314 | dev = DEVICE(pci_dev); | |
78c37d88 PB |
315 | qdev_prop_set_uint32(dev, "vgamem_mb", 16); |
316 | qdev_prop_set_uint16(dev, "x-device-id", 0x5159); | |
9307d06d | 317 | pci_realize_and_unref(pci_dev, pci_bus, &error_fatal); |
78c37d88 | 318 | } |
ff243cff | 319 | |
fb1b0fcc | 320 | /* Populate SPD eeprom data */ |
f26740c6 MA |
321 | spd_data = spd_data_generate(DDR, machine->ram_size); |
322 | smbus_eeprom_init_one(smbus, 0x50, spd_data); | |
051c190b | 323 | |
5c961c3f | 324 | /* Network card: RTL8139D */ |
29b358f9 | 325 | network_init(pci_bus); |
051c190b HC |
326 | } |
327 | ||
c3a09ff6 | 328 | static void mips_fuloong2e_machine_init(MachineClass *mc) |
051c190b | 329 | { |
c3a09ff6 | 330 | mc->desc = "Fuloong 2e mini pc"; |
c3a09ff6 | 331 | mc->init = mips_fuloong2e_init; |
2059839b | 332 | mc->block_default_type = IF_IDE; |
e5207b76 | 333 | mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E"); |
fb1b0fcc | 334 | mc->default_ram_size = 256 * MiB; |
c3a09ff6 | 335 | mc->default_ram_id = "fuloong2e.ram"; |
a08d60bc | 336 | mc->minimum_page_bits = 14; |
9dcb64c9 | 337 | machine_add_audiodev_property(mc); |
051c190b HC |
338 | } |
339 | ||
c3a09ff6 | 340 | DEFINE_MACHINE("fuloong2e", mips_fuloong2e_machine_init) |