From patchwork Sun May 9 02:10:02 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: chen huacai X-Patchwork-Id: 51980 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [199.232.76.165]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 7D8E2B7D66 for ; Sun, 9 May 2010 12:11:45 +1000 (EST) Received: from localhost ([127.0.0.1]:51571 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OAvzI-00041e-73 for incoming@patchwork.ozlabs.org; Sat, 08 May 2010 22:11:24 -0400 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1OAvyG-00040y-Om for qemu-devel@nongnu.org; Sat, 08 May 2010 22:10:20 -0400 Received: from [140.186.70.92] (port=39188 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OAvyC-0003yw-29 for qemu-devel@nongnu.org; Sat, 08 May 2010 22:10:20 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OAvy3-0002LX-Fu for qemu-devel@nongnu.org; Sat, 08 May 2010 22:10:14 -0400 Received: from mail-vw0-f45.google.com ([209.85.212.45]:46687) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OAvy3-0002LT-7x for qemu-devel@nongnu.org; Sat, 08 May 2010 22:10:07 -0400 Received: by vws8 with SMTP id 8so245042vws.4 for ; Sat, 08 May 2010 19:10:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:cc:content-type; bh=JoXw25xgBuViUhKBMtUWDY+JpVKBdmyF2vF/MWVHDyg=; b=mx58uPLuilV3XWVSIlDsf5cDw6mtudg7hE1LwFGJhhSF1Y27Tc8RyNjy7LjS9mjib1 oR9xtHTUjgp3UFIHRgZWBvoaN2GypmqSRof7ig6LfysCctOtAEwRGWr7NPyEecq2uJ1j fbYsNYzDwiK7TFNSakZhOx1VrR4v0mJ4mhXcc= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:cc:content-type; b=Qs7vy3x/K2B9waHkxjJNbPxOYCaKUSufLPC/GAY21hzI57Y8sBYPbe+WAbU/HQ2xpa u0532GQBSwH+QJAwXJdLlXuMiWu/F5F1rnH4zGEuiFBre8TBcBL3yXWVQsADG00lDUNb Z0WGG9iunbwPr5OVKNnwrtaOHBRx69m3gyuTE= MIME-Version: 1.0 Received: by 10.220.128.136 with SMTP id k8mr1680519vcs.178.1273371002795; Sat, 08 May 2010 19:10:02 -0700 (PDT) Received: by 10.220.95.81 with HTTP; Sat, 8 May 2010 19:10:02 -0700 (PDT) Date: Sun, 9 May 2010 10:10:02 +0800 Message-ID: From: chen huacai To: aurelien@aurel32.net X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) Cc: qemu-devel@nongnu.org Subject: [Qemu-devel] [RFC][MIPS][PATCH 5/6] Initial support of fulong mini pc (CPU definition, machine construction, etc.) X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org This patch add initial support of fulong mini pc (CPU definition, machine construction, etc.) Signed-off-by: Huacai Chen ----- #endif }; ----- diff --git a/Makefile.target b/Makefile.target index 08968d6..2cad614 100644 --- a/Makefile.target +++ b/Makefile.target @@ -214,7 +214,7 @@ obj-ppc-y += ppce500_mpc8544ds.o obj-ppc-$(CONFIG_KVM) += kvm_ppc.o obj-ppc-$(CONFIG_FDT) += device_tree.o -obj-mips-y = mips_r4k.o mips_jazz.o mips_malta.o mips_mipssim.o +obj-mips-y = mips_r4k.o mips_jazz.o mips_malta.o mips_mipssim.o mips_fulong2e.o obj-mips-y += mips_addr.o mips_timer.o mips_int.o obj-mips-y += dma.o vga.o i8259.o obj-mips-y += g364fb.o jazz_led.o diff --git a/hw/mips_fulong2e.c b/hw/mips_fulong2e.c new file mode 100644 index 0000000..31f643a --- /dev/null +++ b/hw/mips_fulong2e.c @@ -0,0 +1,449 @@ +/* + * 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. + */ + +/* +fulong 2e mini pc is based on ICT/ST loongson 2e CPU, a mips III like cpu at 800MHZ. +http://www.linux-mips.org/wiki/Fulong + +loongson 2e user manual: + http://www.loongsondeveloper.com/doc/Loongson2EUserGuide.pdf +*/ + +/*what is the meaning of devfn in qemu and IDSEL in bonito northbridge? + +devfn pci_slot<<3 + funno +one pci bus can have 32 devices and each device can have 8 functions. + +In bonito north bridge, pci slot= IDSEL bit - 12. +For example, PCI_IDSEL_VIA686B= 17, +pci slot = 17-12=5 + +so +VT686B_FUN0's devfn = (5<<3)+0 +VT686B_FUN1's devfn = (5<<3)+1 + +qemu also uses pci address for north bridge to access south pci config register. +bus_no [23:16] +dev_no [15:11] +fun_no [10:8] +reg_no [7:2] + +so function bonito_sbridge_pciaddr(bonito.c) for the translation from +northbridge address to pci address. +*/ + +#include "hw.h" +#include "pc.h" +#include "fdc.h" +#include "net.h" +#include "boards.h" +#include "smbus.h" +#include "block.h" +#include "flash.h" +#include "mips.h" +#include "mips_cpudevs.h" +#include "pci.h" +#include "usb-uhci.h" +#include "qemu-char.h" +#include "sysemu.h" +#include "audio/audio.h" +#include "qemu-log.h" +#include "loader.h" +#include "mips-bios.h" +#include "ide.h" +#include "elf.h" + +#define DEBUG_FULONG2E_INIT + +#define ENVP_ADDR 0x80002000l +#define ENVP_NB_ENTRIES 16 +#define ENVP_ENTRY_SIZE 256 + +#define MAX_IDE_BUS 2 + +static const int ide_iobase[2] = { 0x1f0, 0x170 }; +static const int ide_iobase2[2] = { 0x3f6, 0x376 }; +static const int ide_irq[2] = { 14, 15 }; + +/* PCI SLOT in fulong 2e */ +#define FULONG2E_VIA_SLOT 5 +#define FULONG2E_ATI_SLOT 6 +#define FULONG2E_RTL8139_SLOT 7 + +static PITState *pit; +static struct _loaderparams { + int ram_size; + const char *kernel_filename; + const char *kernel_cmdline; + const char *initrd_filename; +} loaderparams; + +static void mips_qemu_writel (void *opaque, target_phys_addr_t addr, + uint32_t val) +{ + if ((addr & 0xffff) == 0 && val == 42) + qemu_system_reset_request (); + else if ((addr & 0xffff) == 4 && val == 42) + qemu_system_shutdown_request (); +} + +static uint32_t mips_qemu_readl (void *opaque, target_phys_addr_t addr) +{ + return 0; +} + +static CPUWriteMemoryFunc *mips_qemu_write[] = { + &mips_qemu_writel, + &mips_qemu_writel, + &mips_qemu_writel, +}; + +static CPUReadMemoryFunc *mips_qemu_read[] = { + &mips_qemu_readl, + &mips_qemu_readl, + &mips_qemu_readl, +}; +static int mips_qemu_iomemtype = 0; + +static void 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 (CPUState *env) +{ + int64_t kernel_entry, kernel_low, kernel_high; + int index = 0; + long initrd_size; + ram_addr_t initrd_offset; + uint32_t *prom_buf; + long prom_size; + + if (load_elf(loaderparams.kernel_filename, cpu_mips_kseg0_to_phys, NULL, + (uint64_t *)&kernel_entry, (uint64_t *)&kernel_low, + (uint64_t *)&kernel_high, 0, ELF_MACHINE, 1) < 0) { + fprintf(stderr, "qemu: could not load kernel '%s'\n", + loaderparams.kernel_filename); + 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 + ~TARGET_PAGE_MASK) & TARGET_PAGE_MASK; + if (initrd_offset + initrd_size > ram_size) { + fprintf(stderr, + "qemu: memory too small for initial ram disk '%s'\n", + 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) { + fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", + loaderparams.initrd_filename); + exit(1); + } + } + + /* Setup prom parameters. */ + prom_size = ENVP_NB_ENTRIES * (sizeof(int32_t) + ENVP_ENTRY_SIZE); + prom_buf = qemu_malloc(prom_size); + + prom_set(prom_buf, index++, loaderparams.kernel_filename); + if (initrd_size > 0) + prom_set(prom_buf, index++, "rd_start=0x" PRIx64 " rd_size=%li %s", + cpu_mips_phys_to_kseg0(NULL, initrd_offset), initrd_size, + loaderparams.kernel_cmdline); + else + prom_set(prom_buf, index++, 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=%i",loaderparams.ram_size/1024/1024); + 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)); + + return kernel_entry; +} + +static void write_bootloader (CPUState *env, uint8_t *base, int64_t kernel_addr) +{ + uint32_t *p; + + /* Small bootloader */ + p = (uint32_t *) base; + + stl_raw(p++, 0x0bf00010); /* j 0x1fc00040 */ + stl_raw(p++, 0x00000000); /* nop */ + + /* Second part of the bootloader */ + p = (uint32_t *) (base + 0x040); + + stl_raw(p++, 0x3c040000); /* lui a0, 0 */ + stl_raw(p++, 0x34840002); /* ori a0, a0, 2 */ + stl_raw(p++, 0x3c050000 | ((ENVP_ADDR >> 16) & 0xffff)); /* lui a1, high(ENVP_ADDR) */ + stl_raw(p++, 0x34a50000 | (ENVP_ADDR & 0xffff)); /* ori a1, a0, low(ENVP_ADDR) */ + stl_raw(p++, 0x3c060000 | (((ENVP_ADDR + 8) >> 16) & 0xffff)); /* lui a2, high(ENVP_ADDR + 8) */ + stl_raw(p++, 0x34c60000 | ((ENVP_ADDR + 8) & 0xffff)); /* ori a2, a2, low(ENVP_ADDR + 8) */ + stl_raw(p++, 0x3c070000 | (loaderparams.ram_size >> 16)); /* lui a3, high(env->ram_size) */ + stl_raw(p++, 0x34e70000 | (loaderparams.ram_size & 0xffff)); /* ori a3, a3, low(env->ram_size) */ + stl_raw(p++, 0x3c1f0000 | ((kernel_addr >> 16) & 0xffff)); /* lui ra, high(kernel_addr) */; + stl_raw(p++, 0x37ff0000 | (kernel_addr & 0xffff)); /* ori ra, ra, low(kernel_addr) */ + stl_raw(p++, 0x03e00008); /* jr ra */ + stl_raw(p++, 0x00000000); /* nop */ +} + + +static void main_cpu_reset(void *opaque) +{ + CPUState *env = opaque; + cpu_reset(env); + /*TODO: 2E reset stuff */ + if (loaderparams.kernel_filename) + env->CP0_Status &= ~((1 << CP0St_BEV) | (1 << CP0St_ERL)); +} + +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 +}; + +/* Audio support */ +#ifdef HAS_AUDIO +static void audio_init (PCIBus *pci_bus) +{ + vt82c686b_ac97_init(pci_bus, (FULONG2E_VIA_SLOT << 3) + 5); + vt82c686b_mc97_init(pci_bus, (FULONG2E_VIA_SLOT << 3) + 6); +} +#endif + +/* Network support */ +static void network_init (void) +{ + 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, "rtl8139", default_devaddr); + } +} + +static void mips_fulong2e_init(ram_addr_t ram_size, + const char *boot_device, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + char *filename; + char buf[1024]; + unsigned long ram_offset, bios_offset; + unsigned long bios_size; + int64_t kernel_entry; + qemu_irq *i8259; + int via_devfn; + PCIBus *pci_bus; + ISADevice *isa_dev; + uint8_t *eeprom_buf; + i2c_bus *smbus; + int i; + DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS]; + DeviceState *eeprom; + RTCState *rtc_state; + CPUState *env; + + /* init CPUs */ + if (cpu_model == NULL) + { + cpu_model = "Loongson-2E"; + } + env = cpu_init(cpu_model); + if (!env) + { + fprintf(stderr, "Unable to find CPU definition\n"); + exit(1); + } + + register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); + qemu_register_reset(main_cpu_reset, env); + + /*fulong 2e has 256M ram. */ + if (ram_size != (256 * 1024 * 1024)) + { + printf("Warnning! RAM size of fulong 2e mini pc is not 256M. Set it to 256M\n"); + ram_size = 256 * 1024 * 1024; + } + + /*fulong 2e has a 1M flash.Winbond W39L040AP70Z */ + bios_size = 1024 * 1024; + + /* allocate RAM */ + ram_offset = qemu_ram_alloc(ram_size); + bios_offset = qemu_ram_alloc(bios_size); + + cpu_register_physical_memory(0, ram_size, IO_MEM_RAM); + + if (!mips_qemu_iomemtype) { + mips_qemu_iomemtype = cpu_register_io_memory(mips_qemu_read, + mips_qemu_write, NULL); + } + + cpu_register_physical_memory(0x1fc00000LL, + bios_size, bios_offset | IO_MEM_ROM); + + /*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, qemu_get_ram_ptr(bios_offset), kernel_entry); + }else{ + if (bios_name == NULL) + bios_name = BIOS_FILENAME; + filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); + if (filename) { + bios_size = load_image_targphys(filename, 0x1fc00000LL, + BIOS_SIZE); + qemu_free(filename); + } else { + bios_size = -1; + } + + if ((bios_size < 0 || bios_size > BIOS_SIZE)&& !kernel_filename) + { + fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n", buf); + exit(1); + } + + } + + /* Init internal devices */ + cpu_mips_irq_init_cpu(env); + cpu_mips_clock_init(env); + + /* Interrupt controller */ + /* The 8259 -> IP5 */ + i8259 = i8259_init(env->irq[5]); + + /* North bridge, Bonito --> IP2 */ + pci_bus = bonito_init_2e(env->irq[2]); + + /* South bridge */ + if (drive_get_max_bus(IF_IDE) >= MAX_IDE_BUS) { + fprintf(stderr, "qemu: too many IDE bus\n"); + exit(1); + } + + for(i = 0; i < MAX_IDE_BUS * MAX_IDE_DEVS; i++) { + hd[i] = drive_get(IF_IDE, i / MAX_IDE_DEVS, i % MAX_IDE_DEVS); + } + + via_devfn = vt82c686b_init(pci_bus, FULONG2E_VIA_SLOT << 3); + if (via_devfn < 0) + { + fprintf(stderr, "vt82c686b_init error \n"); + exit(1); + } + + isa_bus_irqs(i8259); + vt82c686b_ide_init(pci_bus, hd, (FULONG2E_VIA_SLOT << 3) + 1); + usb_uhci_vt82c686b_init(pci_bus, (FULONG2E_VIA_SLOT << 3) + 2); + usb_uhci_vt82c686b_init(pci_bus, (FULONG2E_VIA_SLOT << 3) + 3); + + smbus = vt82c686b_pm_init(pci_bus, (FULONG2E_VIA_SLOT << 3) + 4, 0xeee1,NULL); + eeprom_buf = qemu_mallocz(8 * 256); /* XXX: make this persistent */ + memcpy(eeprom_buf, eeprom_spd, sizeof(eeprom_spd)); + /* TODO: Populate SPD eeprom data. */ + eeprom = qdev_create((BusState *)smbus, "smbus-eeprom"); + qdev_prop_set_uint8(eeprom, "address", 0x50); + qdev_prop_set_ptr(eeprom, "data", eeprom_buf); + qdev_init_nofail(eeprom); + + /*init other devices */ + pit = pit_init(0x40, isa_reserve_irq(0)); + DMA_init(0); + + /* Super I/O */ + isa_dev = isa_create_simple("i8042"); + + rtc_state = rtc_init(2000); + + for(i = 0; i < MAX_SERIAL_PORTS; i++) { + if (serial_hds[i]) { + serial_isa_init(i, serial_hds[i]); + } + } + + if (parallel_hds[0]) + parallel_init(0, parallel_hds[0]); + + /* Sound card */ +#ifdef HAS_AUDIO + audio_init(pci_bus); +#endif + /* Network card */ + network_init(); +} + +QEMUMachine mips_fulong2e_machine = { + .name = "fulong2e", + .desc = "Fulong 2e mini pc", + .init = mips_fulong2e_init, +}; + +static void mips_fulong2e_machine_init(void) +{ + qemu_register_machine(&mips_fulong2e_machine); +} + +machine_init(mips_fulong2e_machine_init); + + diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c index b79ed56..bafe06c 100644 --- a/target-mips/translate_init.c +++ b/target-mips/translate_init.c @@ -454,6 +454,41 @@ static const mips_def_t mips_defs[] = .insn_flags = CPU_MIPS64R2 | ASE_MIPS3D, .mmu_type = MMU_TYPE_R4000, }, + { + .name = "Loongson-2E", + .CP0_PRid = 0x6302, + /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/ + .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) | + (0x1<<4) | (0x1<<1), + /* Note: Config1 is only used internally, Loongson-2E has only Config0. */ + .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), + .SYNCI_Step = 16, + .CCRes = 2, + .CP0_Status_rw_bitmask = 0x35D0FFFF, + .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV), + .SEGBITS = 40, + .PABITS = 40, + .insn_flags = CPU_MIPS3, + .mmu_type = MMU_TYPE_R4000, + }, + { + .name = "Loongson-2F", + .CP0_PRid = 0x6303, + /*64KB I-cache and d-cache. 4 way with 32 bit cache line size*/ + .CP0_Config0 = (0x1<<17) | (0x1<<16) | (0x1<<11) | (0x1<<8) | (0x1<<5) | + (0x1<<4) | (0x1<<1), + /* Note: Config1 is only used internally, Loongson-2F has only Config0. */ + .CP0_Config1 = (1 << CP0C1_FP) | (47 << CP0C1_MMU), + .SYNCI_Step = 16, + .CCRes = 2, + .CP0_Status_rw_bitmask = 0xF5D0FF1F, /*bit5:7 not writeable*/ + .CP1_fcr0 = (0x5 << FCR0_PRID) | (0x1 << FCR0_REV), + .SEGBITS = 40, + .PABITS = 40, + .insn_flags = CPU_MIPS3, + .mmu_type = MMU_TYPE_R4000, + }, +