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-rw-r--r--hw/mips/mips_fulong2e.c379
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diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
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--- a/hw/mips/mips_fulong2e.c
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-/*
- * QEMU fulong 2e mini pc support
- *
- * Copyright (c) 2008 yajin (yajin@vm-kernel.org)
- * Copyright (c) 2009 chenming (chenming@rdc.faw.com.cn)
- * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com)
- * This code is licensed under the GNU GPL v2.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-/*
- * Fulong 2e mini pc is based on ICT/ST Loongson 2e CPU (MIPS III like, 800MHz)
- * http://www.linux-mips.org/wiki/Fulong
- *
- * Loongson 2e user manual:
- * http://www.loongsondeveloper.com/doc/Loongson2EUserGuide.pdf
- */
-
-#include "qemu/osdep.h"
-#include "qemu/units.h"
-#include "qapi/error.h"
-#include "hw/hw.h"
-#include "hw/i386/pc.h"
-#include "hw/dma/i8257.h"
-#include "hw/isa/superio.h"
-#include "net/net.h"
-#include "hw/boards.h"
-#include "hw/i2c/smbus.h"
-#include "hw/block/flash.h"
-#include "hw/mips/mips.h"
-#include "hw/mips/cpudevs.h"
-#include "hw/pci/pci.h"
-#include "audio/audio.h"
-#include "qemu/log.h"
-#include "hw/loader.h"
-#include "hw/mips/bios.h"
-#include "hw/ide.h"
-#include "elf.h"
-#include "hw/isa/vt82c686.h"
-#include "hw/timer/mc146818rtc.h"
-#include "hw/timer/i8254.h"
-#include "exec/address-spaces.h"
-#include "sysemu/qtest.h"
-#include "qemu/error-report.h"
-
-#define DEBUG_FULONG2E_INIT
-
-#define ENVP_ADDR 0x80002000l
-#define ENVP_NB_ENTRIES 16
-#define ENVP_ENTRY_SIZE 256
-
-#define MAX_IDE_BUS 2
-
-/*
- * PMON is not part of qemu and released with BSD license, anyone
- * who want to build a pmon binary please first git-clone the source
- * from the git repository at:
- * http://www.loongson.cn/support/git/pmon
- * Then follow the "Compile Guide" available at:
- * http://dev.lemote.com/code/pmon
- *
- * Notes:
- * 1, don't use the source at http://dev.lemote.com/http_git/pmon.git
- * 2, use "Bonito2edev" to replace "dir_corresponding_to_your_target_hardware"
- * in the "Compile Guide".
- */
-#define FULONG_BIOSNAME "pmon_fulong2e.bin"
-
-/* PCI SLOT in fulong 2e */
-#define FULONG2E_VIA_SLOT 5
-#define FULONG2E_ATI_SLOT 6
-#define FULONG2E_RTL8139_SLOT 7
-
-static struct _loaderparams {
- int ram_size;
- const char *kernel_filename;
- const char *kernel_cmdline;
- const char *initrd_filename;
-} loaderparams;
-
-static void GCC_FMT_ATTR(3, 4) prom_set(uint32_t* prom_buf, int index,
- const char *string, ...)
-{
- va_list ap;
- int32_t table_addr;
-
- if (index >= ENVP_NB_ENTRIES)
- return;
-
- if (string == NULL) {
- prom_buf[index] = 0;
- return;
- }
-
- table_addr = sizeof(int32_t) * ENVP_NB_ENTRIES + index * ENVP_ENTRY_SIZE;
- prom_buf[index] = tswap32(ENVP_ADDR + table_addr);
-
- va_start(ap, string);
- vsnprintf((char *)prom_buf + table_addr, ENVP_ENTRY_SIZE, string, ap);
- va_end(ap);
-}
-
-static int64_t load_kernel (CPUMIPSState *env)
-{
- int64_t kernel_entry, kernel_low, kernel_high, initrd_size;
- int index = 0;
- long kernel_size;
- ram_addr_t initrd_offset;
- uint32_t *prom_buf;
- long prom_size;
-
- kernel_size = load_elf(loaderparams.kernel_filename, cpu_mips_kseg0_to_phys,
- NULL, (uint64_t *)&kernel_entry,
- (uint64_t *)&kernel_low, (uint64_t *)&kernel_high,
- 0, EM_MIPS, 1, 0);
- if (kernel_size < 0) {
- error_report("could not load kernel '%s': %s",
- loaderparams.kernel_filename,
- load_elf_strerror(kernel_size));
- exit(1);
- }
-
- /* load initrd */
- initrd_size = 0;
- initrd_offset = 0;
- if (loaderparams.initrd_filename) {
- initrd_size = get_image_size (loaderparams.initrd_filename);
- if (initrd_size > 0) {
- initrd_offset = (kernel_high + ~INITRD_PAGE_MASK) & INITRD_PAGE_MASK;
- if (initrd_offset + initrd_size > ram_size) {
- error_report("memory too small for initial ram disk '%s'",
- loaderparams.initrd_filename);
- exit(1);
- }
- initrd_size = load_image_targphys(loaderparams.initrd_filename,
- initrd_offset, ram_size - initrd_offset);
- }
- if (initrd_size == (target_ulong) -1) {
- error_report("could not load initial ram disk '%s'",
- loaderparams.initrd_filename);
- exit(1);
- }
- }
-
- /* Setup prom parameters. */
- prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE);
- prom_buf = g_malloc(prom_size);
-
- prom_set(prom_buf, index++, "%s", loaderparams.kernel_filename);
- if (initrd_size > 0) {
- prom_set(prom_buf, index++, "rd_start=0x%" PRIx64 " rd_size=%" PRId64 " %s",
- cpu_mips_phys_to_kseg0(NULL, initrd_offset), initrd_size,
- loaderparams.kernel_cmdline);
- } else {
- prom_set(prom_buf, index++, "%s", loaderparams.kernel_cmdline);
- }
-
- /* Setup minimum environment variables */
- prom_set(prom_buf, index++, "busclock=33000000");
- prom_set(prom_buf, index++, "cpuclock=100000000");
- prom_set(prom_buf, index++, "memsize=%"PRIi64, loaderparams.ram_size / MiB);
- prom_set(prom_buf, index++, "modetty0=38400n8r");
- prom_set(prom_buf, index++, NULL);
-
- rom_add_blob_fixed("prom", prom_buf, prom_size,
- cpu_mips_kseg0_to_phys(NULL, ENVP_ADDR));
-
- g_free(prom_buf);
- return kernel_entry;
-}
-
-static void write_bootloader (CPUMIPSState *env, uint8_t *base, int64_t kernel_addr)
-{
- uint32_t *p;
-
- /* Small bootloader */
- p = (uint32_t *) base;
-
- stl_p(p++, 0x0bf00010); /* j 0x1fc00040 */
- stl_p(p++, 0x00000000); /* nop */
-
- /* Second part of the bootloader */
- p = (uint32_t *) (base + 0x040);
-
- stl_p(p++, 0x3c040000); /* lui a0, 0 */
- stl_p(p++, 0x34840002); /* ori a0, a0, 2 */
- stl_p(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */
- stl_p(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */
- stl_p(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */
- stl_p(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */
- stl_p(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(env->ram_size) */
- stl_p(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */
- stl_p(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff)); /* lui ra, high(kernel_addr) */;
- stl_p(p++, 0x37ff0000 | (kernel_addr & 0xffff)); /* ori ra, ra, low(kernel_addr) */
- stl_p(p++, 0x03e00008); /* jr ra */
- stl_p(p++, 0x00000000); /* nop */
-}
-
-
-static void main_cpu_reset(void *opaque)
-{
- MIPSCPU *cpu = opaque;
- CPUMIPSState *env = &cpu->env;
-
- cpu_reset(CPU(cpu));
- /* TODO: 2E reset stuff */
- if (loaderparams.kernel_filename) {
- env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL));
- }
-}
-
-static const uint8_t eeprom_spd[0x80] = {
- 0x80,0x08,0x07,0x0d,0x09,0x02,0x40,0x00,0x04,0x70,
- 0x70,0x00,0x82,0x10,0x00,0x01,0x0e,0x04,0x0c,0x01,
- 0x02,0x20,0x80,0x75,0x70,0x00,0x00,0x50,0x3c,0x50,
- 0x2d,0x20,0xb0,0xb0,0x50,0x50,0x00,0x00,0x00,0x00,
- 0x00,0x41,0x48,0x3c,0x32,0x75,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x9c,0x7b,0x07,0x00,0x00,0x00,0x00,
- 0x00,0x00,0x00,0x00,0x48,0x42,0x35,0x34,0x41,0x32,
- 0x35,0x36,0x38,0x4b,0x4e,0x2d,0x41,0x37,0x35,0x42,
- 0x20,0x30,0x20
-};
-
-static void vt82c686b_southbridge_init(PCIBus *pci_bus, int slot, qemu_irq intc,
- I2CBus **i2c_bus, ISABus **p_isa_bus)
-{
- qemu_irq *i8259;
- ISABus *isa_bus;
- DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
-
- isa_bus = vt82c686b_isa_init(pci_bus, PCI_DEVFN(slot, 0));
- if (!isa_bus) {
- fprintf(stderr, "vt82c686b_init error\n");
- exit(1);
- }
- *p_isa_bus = isa_bus;
- /* Interrupt controller */
- /* The 8259 -> IP5 */
- i8259 = i8259_init(isa_bus, intc);
- isa_bus_irqs(isa_bus, i8259);
- /* init other devices */
- i8254_pit_init(isa_bus, 0x40, 0, NULL);
- i8257_dma_init(isa_bus, 0);
- /* Super I/O */
- isa_create_simple(isa_bus, TYPE_VT82C686B_SUPERIO);
-
- ide_drive_get(hd, ARRAY_SIZE(hd));
- vt82c686b_ide_init(pci_bus, hd, PCI_DEVFN(slot, 1));
-
- pci_create_simple(pci_bus, PCI_DEVFN(slot, 2), "vt82c686b-usb-uhci");
- pci_create_simple(pci_bus, PCI_DEVFN(slot, 3), "vt82c686b-usb-uhci");
-
- *i2c_bus = vt82c686b_pm_init(pci_bus, PCI_DEVFN(slot, 4), 0xeee1, NULL);
-
- /* Audio support */
- vt82c686b_ac97_init(pci_bus, PCI_DEVFN(slot, 5));
- vt82c686b_mc97_init(pci_bus, PCI_DEVFN(slot, 6));
-}
-
-/* Network support */
-static void network_init (PCIBus *pci_bus)
-{
- int i;
-
- for(i = 0; i < nb_nics; i++) {
- NICInfo *nd = &nd_table[i];
- const char *default_devaddr = NULL;
-
- if (i == 0 && (!nd->model || strcmp(nd->model, "rtl8139") == 0)) {
- /* The fulong board has a RTL8139 card using PCI SLOT 7 */
- default_devaddr = "07";
- }
-
- pci_nic_init_nofail(nd, pci_bus, "rtl8139", default_devaddr);
- }
-}
-
-static void mips_fulong2e_init(MachineState *machine)
-{
- ram_addr_t ram_size = machine->ram_size;
- const char *kernel_filename = machine->kernel_filename;
- const char *kernel_cmdline = machine->kernel_cmdline;
- const char *initrd_filename = machine->initrd_filename;
- char *filename;
- MemoryRegion *address_space_mem = get_system_memory();
- MemoryRegion *ram = g_new(MemoryRegion, 1);
- MemoryRegion *bios = g_new(MemoryRegion, 1);
- long bios_size;
- int64_t kernel_entry;
- PCIBus *pci_bus;
- ISABus *isa_bus;
- I2CBus *smbus;
- MIPSCPU *cpu;
- CPUMIPSState *env;
-
- /* init CPUs */
- cpu = MIPS_CPU(cpu_create(machine->cpu_type));
- env = &cpu->env;
-
- qemu_register_reset(main_cpu_reset, cpu);
-
- /* fulong 2e has 256M ram. */
- ram_size = 256 * MiB;
-
- /* fulong 2e has a 1M flash.Winbond W39L040AP70Z */
- bios_size = 1 * MiB;
-
- /* allocate RAM */
- memory_region_allocate_system_memory(ram, NULL, "fulong2e.ram", ram_size);
- memory_region_init_ram(bios, NULL, "fulong2e.bios", bios_size,
- &error_fatal);
- memory_region_set_readonly(bios, true);
-
- memory_region_add_subregion(address_space_mem, 0, ram);
- memory_region_add_subregion(address_space_mem, 0x1fc00000LL, bios);
-
- /* We do not support flash operation, just loading pmon.bin as raw BIOS.
- * Please use -L to set the BIOS path and -bios to set bios name. */
-
- if (kernel_filename) {
- loaderparams.ram_size = ram_size;
- loaderparams.kernel_filename = kernel_filename;
- loaderparams.kernel_cmdline = kernel_cmdline;
- loaderparams.initrd_filename = initrd_filename;
- kernel_entry = load_kernel (env);
- write_bootloader(env, memory_region_get_ram_ptr(bios), kernel_entry);
- } else {
- if (bios_name == NULL) {
- bios_name = FULONG_BIOSNAME;
- }
- filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
- if (filename) {
- bios_size = load_image_targphys(filename, 0x1fc00000LL,
- BIOS_SIZE);
- g_free(filename);
- } else {
- bios_size = -1;
- }
-
- if ((bios_size < 0 || bios_size > BIOS_SIZE) &&
- !kernel_filename && !qtest_enabled()) {
- error_report("Could not load MIPS bios '%s'", bios_name);
- exit(1);
- }
- }
-
- /* Init internal devices */
- cpu_mips_irq_init_cpu(cpu);
- cpu_mips_clock_init(cpu);
-
- /* North bridge, Bonito --> IP2 */
- pci_bus = bonito_init((qemu_irq *)&(env->irq[2]));
-
- /* South bridge -> IP5 */
- vt82c686b_southbridge_init(pci_bus, FULONG2E_VIA_SLOT, env->irq[5],
- &smbus, &isa_bus);
-
- /* TODO: Populate SPD eeprom data. */
- smbus_eeprom_init(smbus, 1, eeprom_spd, sizeof(eeprom_spd));
-
- mc146818_rtc_init(isa_bus, 2000, NULL);
-
- /* Network card: RTL8139D */
- network_init(pci_bus);
-}
-
-static void mips_fulong2e_machine_init(MachineClass *mc)
-{
- mc->desc = "Fulong 2e mini pc";
- mc->init = mips_fulong2e_init;
- mc->block_default_type = IF_IDE;
- mc->default_cpu_type = MIPS_CPU_TYPE_NAME("Loongson-2E");
-}
-
-DEFINE_MACHINE("fulong2e", mips_fulong2e_machine_init)