2  * QEMU fuloong 2e mini pc support
4  * Copyright (c) 2008 yajin (yajin@vm-kernel.org)
9  * Contributions after 2012-01-13 are licensed under the terms of the
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
18  * https://github.com/loongson-community/docs/tree/master/2E
36 #include "hw/qdev-properties.h"
42 #include "qemu/error-report.h"
54  * who want to build a pmon binary please first git-clone the source
56  * https://github.com/loongson-community/pmon
130                                               loaderparams.ram_size - initrd_offset);  in load_kernel()
132         if (initrd_size == (target_ulong) -1) {  in load_kernel()
155     prom_set(prom_buf, index++, "cpuclock=%u", clock_get_hz(cpu->clock));  in load_kernel()
182                        true, ENVP_VADDR - 64,  in write_bootloader()
192     CPUMIPSState *env = &cpu->env;  in main_cpu_reset()
197         env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));  in main_cpu_reset()
211     const char *kernel_filename = machine->kernel_filename;  in mips_fuloong2e_init()
212     const char *kernel_cmdline = machine->kernel_cmdline;  in mips_fuloong2e_init()
213     const char *initrd_filename = machine->initrd_filename;  in mips_fuloong2e_init()
216     MemoryRegion *bios = g_new(MemoryRegion, 1);  in mips_fuloong2e_init()  local
228     cpuclk = clock_new(OBJECT(machine), "cpu-refclk");  in mips_fuloong2e_init()
232     cpu = mips_cpu_create_with_clock(machine->cpu_type, cpuclk, false);  in mips_fuloong2e_init()
233     env = &cpu->env;  in mips_fuloong2e_init()
238     if (machine->ram_size != 256 * MiB) {  in mips_fuloong2e_init()
242     memory_region_add_subregion(address_space_mem, 0, machine->ram);  in mips_fuloong2e_init()
245     memory_region_init_rom(bios, NULL, "fuloong2e.bios", BIOS_SIZE,  in mips_fuloong2e_init()
247     memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);  in mips_fuloong2e_init()
250      * We do not support flash operation, just loading pmon.bin as raw BIOS.  in mips_fuloong2e_init()
251      * Please use -L to set the BIOS path and -bios to set bios name.  in mips_fuloong2e_init()
255         loaderparams.ram_size = machine->ram_size;  in mips_fuloong2e_init()
260         write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);  in mips_fuloong2e_init()
263                                   machine->firmware ?: FULOONG_BIOSNAME);  in mips_fuloong2e_init()
269             bios_size = -1;  in mips_fuloong2e_init()
273             machine->firmware && !qtest_enabled()) {  in mips_fuloong2e_init()
274             error_report("Could not load MIPS bios '%s'", machine->firmware);  in mips_fuloong2e_init()
283     /* North bridge, Bonito --> IP2 */  in mips_fuloong2e_init()
284     pci_bus = bonito_init((qemu_irq *)&(env->irq[2]));  in mips_fuloong2e_init()
286     /* South bridge -> IP5 */  in mips_fuloong2e_init()
291     if (machine->audiodev) {  in mips_fuloong2e_init()
293         qdev_prop_set_string(dev, "audiodev", machine->audiodev);  in mips_fuloong2e_init()
298     object_property_add_alias(OBJECT(machine), "rtc-time",  in mips_fuloong2e_init()
302     qdev_connect_gpio_out_named(DEVICE(pci_dev), "intr", 0, env->irq[5]);  in mips_fuloong2e_init()
313         pci_dev = pci_new(-1, "ati-vga");  in mips_fuloong2e_init()
316         qdev_prop_set_uint16(dev, "x-device-id", 0x5159);  in mips_fuloong2e_init()
321     spd_data = spd_data_generate(DDR, machine->ram_size);  in mips_fuloong2e_init()
330     mc->desc = "Fuloong 2e mini pc";  in mips_fuloong2e_machine_init()
331     mc->init = mips_fuloong2e_init;  in mips_fuloong2e_machine_init()
332     mc->block_default_type = IF_IDE;  in mips_fuloong2e_machine_init()
333     mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E");  in mips_fuloong2e_machine_init()
334     mc->default_ram_size = 256 * MiB;  in mips_fuloong2e_machine_init()
335     mc->default_ram_id = "fuloong2e.ram";  in mips_fuloong2e_machine_init()
336     mc->minimum_page_bits = 14;  in mips_fuloong2e_machine_init()