hw/lm32_boards.c - qemu - Git at Google

 /*
  *  QEMU models for LatticeMico32 uclinux and evr32 boards.
  *
  *  Copyright (c) 2010 Michael Walle <michael@walle.cc>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, see <http://www.gnu.org/licenses/>.
  */

 #include "sysbus.h"
 #include "hw.h"
 #include "flash.h"
 #include "devices.h"
 #include "boards.h"
 #include "loader.h"
 #include "sysemu/blockdev.h"
 #include "elf.h"
 #include "lm32_hwsetup.h"
 #include "lm32.h"
 #include "exec/address-spaces.h"

 typedef struct {
     LM32CPU *cpu;
     hwaddr bootstrap_pc;
     hwaddr flash_base;
     hwaddr hwsetup_base;
     hwaddr initrd_base;
     size_t initrd_size;
     hwaddr cmdline_base;
 } ResetInfo;

 static void cpu_irq_handler(void *opaque, int irq, int level)
 {
     CPULM32State *env = opaque;

     if (level) {
         cpu_interrupt(env, CPU_INTERRUPT_HARD);
     } else {
         cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
     }
 }

 static void main_cpu_reset(void *opaque)
 {
     ResetInfo *reset_info = opaque;
     CPULM32State *env = &reset_info->cpu->env;

     cpu_reset(CPU(reset_info->cpu));

     /* init defaults */
     env->pc = (uint32_t)reset_info->bootstrap_pc;
     env->regs[R_R1] = (uint32_t)reset_info->hwsetup_base;
     env->regs[R_R2] = (uint32_t)reset_info->cmdline_base;
     env->regs[R_R3] = (uint32_t)reset_info->initrd_base;
     env->regs[R_R4] = (uint32_t)(reset_info->initrd_base +
         reset_info->initrd_size);
     env->eba = reset_info->flash_base;
     env->deba = reset_info->flash_base;
 }

 static void lm32_evr_init(QEMUMachineInitArgs *args)
 {
     const char *cpu_model = args->cpu_model;
     const char *kernel_filename = args->kernel_filename;
     LM32CPU *cpu;
     CPULM32State *env;
     DriveInfo *dinfo;
     MemoryRegion *address_space_mem =  get_system_memory();
     MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
     qemu_irq *cpu_irq, irq[32];
     ResetInfo *reset_info;
     int i;

     /* memory map */
     hwaddr flash_base  = 0x04000000;
     size_t flash_sector_size       = 256 * 1024;
     size_t flash_size              = 32 * 1024 * 1024;
     hwaddr ram_base    = 0x08000000;
     size_t ram_size                = 64 * 1024 * 1024;
     hwaddr timer0_base = 0x80002000;
     hwaddr uart0_base  = 0x80006000;
     hwaddr timer1_base = 0x8000a000;
     int uart0_irq                  = 0;
     int timer0_irq                 = 1;
     int timer1_irq                 = 3;

     reset_info = g_malloc0(sizeof(ResetInfo));

     if (cpu_model == NULL) {
         cpu_model = "lm32-full";
     }
     cpu = cpu_lm32_init(cpu_model);
     env = &cpu->env;
     reset_info->cpu = cpu;

     reset_info->flash_base = flash_base;

     memory_region_init_ram(phys_ram, "lm32_evr.sdram", ram_size);
     vmstate_register_ram_global(phys_ram);
     memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

     dinfo = drive_get(IF_PFLASH, 0, 0);
     /* Spansion S29NS128P */
     pflash_cfi02_register(flash_base, NULL, "lm32_evr.flash", flash_size,
                           dinfo ? dinfo->bdrv : NULL, flash_sector_size,
                           flash_size / flash_sector_size, 1, 2,
                           0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);

     /* create irq lines */
     cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1);
     env->pic_state = lm32_pic_init(*cpu_irq);
     for (i = 0; i < 32; i++) {
         irq[i] = qdev_get_gpio_in(env->pic_state, i);
     }

     sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
     sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
     sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);

     /* make sure juart isn't the first chardev */
     env->juart_state = lm32_juart_init();

     reset_info->bootstrap_pc = flash_base;

     if (kernel_filename) {
         uint64_t entry;
         int kernel_size;

         kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
                                1, ELF_MACHINE, 0);
         reset_info->bootstrap_pc = entry;

         if (kernel_size < 0) {
             kernel_size = load_image_targphys(kernel_filename, ram_base,
                                               ram_size);
             reset_info->bootstrap_pc = ram_base;
         }

         if (kernel_size < 0) {
             fprintf(stderr, "qemu: could not load kernel '%s'\n",
                     kernel_filename);
             exit(1);
         }
     }

     qemu_register_reset(main_cpu_reset, reset_info);
 }

 static void lm32_uclinux_init(QEMUMachineInitArgs *args)
 {
     const char *cpu_model = args->cpu_model;
     const char *kernel_filename = args->kernel_filename;
     const char *kernel_cmdline = args->kernel_cmdline;
     const char *initrd_filename = args->initrd_filename;
     LM32CPU *cpu;
     CPULM32State *env;
     DriveInfo *dinfo;
     MemoryRegion *address_space_mem =  get_system_memory();
     MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
     qemu_irq *cpu_irq, irq[32];
     HWSetup *hw;
     ResetInfo *reset_info;
     int i;

     /* memory map */
     hwaddr flash_base   = 0x04000000;
     size_t flash_sector_size        = 256 * 1024;
     size_t flash_size               = 32 * 1024 * 1024;
     hwaddr ram_base     = 0x08000000;
     size_t ram_size                 = 64 * 1024 * 1024;
     hwaddr uart0_base   = 0x80000000;
     hwaddr timer0_base  = 0x80002000;
     hwaddr timer1_base  = 0x80010000;
     hwaddr timer2_base  = 0x80012000;
     int uart0_irq                   = 0;
     int timer0_irq                  = 1;
     int timer1_irq                  = 20;
     int timer2_irq                  = 21;
     hwaddr hwsetup_base = 0x0bffe000;
     hwaddr cmdline_base = 0x0bfff000;
     hwaddr initrd_base  = 0x08400000;
     size_t initrd_max               = 0x01000000;

     reset_info = g_malloc0(sizeof(ResetInfo));

     if (cpu_model == NULL) {
         cpu_model = "lm32-full";
     }
     cpu = cpu_lm32_init(cpu_model);
     env = &cpu->env;
     reset_info->cpu = cpu;

     reset_info->flash_base = flash_base;

     memory_region_init_ram(phys_ram, "lm32_uclinux.sdram", ram_size);
     vmstate_register_ram_global(phys_ram);
     memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

     dinfo = drive_get(IF_PFLASH, 0, 0);
     /* Spansion S29NS128P */
     pflash_cfi02_register(flash_base, NULL, "lm32_uclinux.flash", flash_size,
                           dinfo ? dinfo->bdrv : NULL, flash_sector_size,
                           flash_size / flash_sector_size, 1, 2,
                           0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);

     /* create irq lines */
     cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1);
     env->pic_state = lm32_pic_init(*cpu_irq);
     for (i = 0; i < 32; i++) {
         irq[i] = qdev_get_gpio_in(env->pic_state, i);
     }

     sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
     sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
     sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
     sysbus_create_simple("lm32-timer", timer2_base, irq[timer2_irq]);

     /* make sure juart isn't the first chardev */
     env->juart_state = lm32_juart_init();

     reset_info->bootstrap_pc = flash_base;

     if (kernel_filename) {
         uint64_t entry;
         int kernel_size;

         kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
                                1, ELF_MACHINE, 0);
         reset_info->bootstrap_pc = entry;

         if (kernel_size < 0) {
             kernel_size = load_image_targphys(kernel_filename, ram_base,
                                               ram_size);
             reset_info->bootstrap_pc = ram_base;
         }

         if (kernel_size < 0) {
             fprintf(stderr, "qemu: could not load kernel '%s'\n",
                     kernel_filename);
             exit(1);
         }
     }

     /* generate a rom with the hardware description */
     hw = hwsetup_init();
     hwsetup_add_cpu(hw, "LM32", 75000000);
     hwsetup_add_flash(hw, "flash", flash_base, flash_size);
     hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, ram_size);
     hwsetup_add_timer(hw, "timer0", timer0_base, timer0_irq);
     hwsetup_add_timer(hw, "timer1_dev_only", timer1_base, timer1_irq);
     hwsetup_add_timer(hw, "timer2_dev_only", timer2_base, timer2_irq);
     hwsetup_add_uart(hw, "uart", uart0_base, uart0_irq);
     hwsetup_add_trailer(hw);
     hwsetup_create_rom(hw, hwsetup_base);
     hwsetup_free(hw);

     reset_info->hwsetup_base = hwsetup_base;

     if (kernel_cmdline && strlen(kernel_cmdline)) {
         pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
                 kernel_cmdline);
         reset_info->cmdline_base = cmdline_base;
     }

     if (initrd_filename) {
         size_t initrd_size;
         initrd_size = load_image_targphys(initrd_filename, initrd_base,
                 initrd_max);
         reset_info->initrd_base = initrd_base;
         reset_info->initrd_size = initrd_size;
     }

     qemu_register_reset(main_cpu_reset, reset_info);
 }

 static QEMUMachine lm32_evr_machine = {
     .name = "lm32-evr",
     .desc = "LatticeMico32 EVR32 eval system",
     .init = lm32_evr_init,
     .is_default = 1,
     DEFAULT_MACHINE_OPTIONS,
 };

 static QEMUMachine lm32_uclinux_machine = {
     .name = "lm32-uclinux",
     .desc = "lm32 platform for uClinux and u-boot by Theobroma Systems",
     .init = lm32_uclinux_init,
     .is_default = 0,
     DEFAULT_MACHINE_OPTIONS,
 };

 static void lm32_machine_init(void)
 {
     qemu_register_machine(&lm32_uclinux_machine);
     qemu_register_machine(&lm32_evr_machine);
 }

 machine_init(lm32_machine_init);
	/*
	* QEMU models for LatticeMico32 uclinux and evr32 boards.
	*
	* Copyright (c) 2010 Michael Walle <michael@walle.cc>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, see <http://www.gnu.org/licenses/>.
	*/

	#include "sysbus.h"
	#include "hw.h"
	#include "flash.h"
	#include "devices.h"
	#include "boards.h"
	#include "loader.h"
	#include "sysemu/blockdev.h"
	#include "elf.h"
	#include "lm32_hwsetup.h"
	#include "lm32.h"
	#include "exec/address-spaces.h"

	typedef struct {
	LM32CPU *cpu;
	hwaddr bootstrap_pc;
	hwaddr flash_base;
	hwaddr hwsetup_base;
	hwaddr initrd_base;
	size_t initrd_size;
	hwaddr cmdline_base;
	} ResetInfo;

	static void cpu_irq_handler(void *opaque, int irq, int level)
	{
	CPULM32State *env = opaque;

	if (level) {
	cpu_interrupt(env, CPU_INTERRUPT_HARD);
	} else {
	cpu_reset_interrupt(env, CPU_INTERRUPT_HARD);
	}
	}

	static void main_cpu_reset(void *opaque)
	{
	ResetInfo *reset_info = opaque;
	CPULM32State *env = &reset_info->cpu->env;

	cpu_reset(CPU(reset_info->cpu));

	/* init defaults */
	env->pc = (uint32_t)reset_info->bootstrap_pc;
	env->regs[R_R1] = (uint32_t)reset_info->hwsetup_base;
	env->regs[R_R2] = (uint32_t)reset_info->cmdline_base;
	env->regs[R_R3] = (uint32_t)reset_info->initrd_base;
	env->regs[R_R4] = (uint32_t)(reset_info->initrd_base +
	reset_info->initrd_size);
	env->eba = reset_info->flash_base;
	env->deba = reset_info->flash_base;
	}

	static void lm32_evr_init(QEMUMachineInitArgs *args)
	{
	const char *cpu_model = args->cpu_model;
	const char *kernel_filename = args->kernel_filename;
	LM32CPU *cpu;
	CPULM32State *env;
	DriveInfo *dinfo;
	MemoryRegion *address_space_mem = get_system_memory();
	MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
	qemu_irq *cpu_irq, irq[32];
	ResetInfo *reset_info;
	int i;

	/* memory map */
	hwaddr flash_base = 0x04000000;
	size_t flash_sector_size = 256 * 1024;
	size_t flash_size = 32 * 1024 * 1024;
	hwaddr ram_base = 0x08000000;
	size_t ram_size = 64 * 1024 * 1024;
	hwaddr timer0_base = 0x80002000;
	hwaddr uart0_base = 0x80006000;
	hwaddr timer1_base = 0x8000a000;
	int uart0_irq = 0;
	int timer0_irq = 1;
	int timer1_irq = 3;

	reset_info = g_malloc0(sizeof(ResetInfo));

	if (cpu_model == NULL) {
	cpu_model = "lm32-full";
	}
	cpu = cpu_lm32_init(cpu_model);
	env = &cpu->env;
	reset_info->cpu = cpu;

	reset_info->flash_base = flash_base;

	memory_region_init_ram(phys_ram, "lm32_evr.sdram", ram_size);
	vmstate_register_ram_global(phys_ram);
	memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

	dinfo = drive_get(IF_PFLASH, 0, 0);
	/* Spansion S29NS128P */
	pflash_cfi02_register(flash_base, NULL, "lm32_evr.flash", flash_size,
	dinfo ? dinfo->bdrv : NULL, flash_sector_size,
	flash_size / flash_sector_size, 1, 2,
	0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);

	/* create irq lines */
	cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1);
	env->pic_state = lm32_pic_init(*cpu_irq);
	for (i = 0; i < 32; i++) {
	irq[i] = qdev_get_gpio_in(env->pic_state, i);
	}

	sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
	sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
	sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);

	/* make sure juart isn't the first chardev */
	env->juart_state = lm32_juart_init();

	reset_info->bootstrap_pc = flash_base;

	if (kernel_filename) {
	uint64_t entry;
	int kernel_size;

	kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
	1, ELF_MACHINE, 0);
	reset_info->bootstrap_pc = entry;

	if (kernel_size < 0) {
	kernel_size = load_image_targphys(kernel_filename, ram_base,
	ram_size);
	reset_info->bootstrap_pc = ram_base;
	}

	if (kernel_size < 0) {
	fprintf(stderr, "qemu: could not load kernel '%s'\n",
	kernel_filename);
	exit(1);
	}
	}

	qemu_register_reset(main_cpu_reset, reset_info);
	}

	static void lm32_uclinux_init(QEMUMachineInitArgs *args)
	{
	const char *cpu_model = args->cpu_model;
	const char *kernel_filename = args->kernel_filename;
	const char *kernel_cmdline = args->kernel_cmdline;
	const char *initrd_filename = args->initrd_filename;
	LM32CPU *cpu;
	CPULM32State *env;
	DriveInfo *dinfo;
	MemoryRegion *address_space_mem = get_system_memory();
	MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
	qemu_irq *cpu_irq, irq[32];
	HWSetup *hw;
	ResetInfo *reset_info;
	int i;

	/* memory map */
	hwaddr flash_base = 0x04000000;
	size_t flash_sector_size = 256 * 1024;
	size_t flash_size = 32 * 1024 * 1024;
	hwaddr ram_base = 0x08000000;
	size_t ram_size = 64 * 1024 * 1024;
	hwaddr uart0_base = 0x80000000;
	hwaddr timer0_base = 0x80002000;
	hwaddr timer1_base = 0x80010000;
	hwaddr timer2_base = 0x80012000;
	int uart0_irq = 0;
	int timer0_irq = 1;
	int timer1_irq = 20;
	int timer2_irq = 21;
	hwaddr hwsetup_base = 0x0bffe000;
	hwaddr cmdline_base = 0x0bfff000;
	hwaddr initrd_base = 0x08400000;
	size_t initrd_max = 0x01000000;

	reset_info = g_malloc0(sizeof(ResetInfo));

	if (cpu_model == NULL) {
	cpu_model = "lm32-full";
	}
	cpu = cpu_lm32_init(cpu_model);
	env = &cpu->env;
	reset_info->cpu = cpu;

	reset_info->flash_base = flash_base;

	memory_region_init_ram(phys_ram, "lm32_uclinux.sdram", ram_size);
	vmstate_register_ram_global(phys_ram);
	memory_region_add_subregion(address_space_mem, ram_base, phys_ram);

	dinfo = drive_get(IF_PFLASH, 0, 0);
	/* Spansion S29NS128P */
	pflash_cfi02_register(flash_base, NULL, "lm32_uclinux.flash", flash_size,
	dinfo ? dinfo->bdrv : NULL, flash_sector_size,
	flash_size / flash_sector_size, 1, 2,
	0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);

	/* create irq lines */
	cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1);
	env->pic_state = lm32_pic_init(*cpu_irq);
	for (i = 0; i < 32; i++) {
	irq[i] = qdev_get_gpio_in(env->pic_state, i);
	}

	sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]);
	sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
	sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
	sysbus_create_simple("lm32-timer", timer2_base, irq[timer2_irq]);

	/* make sure juart isn't the first chardev */
	env->juart_state = lm32_juart_init();

	reset_info->bootstrap_pc = flash_base;

	if (kernel_filename) {
	uint64_t entry;
	int kernel_size;

	kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
	1, ELF_MACHINE, 0);
	reset_info->bootstrap_pc = entry;

	if (kernel_size < 0) {
	kernel_size = load_image_targphys(kernel_filename, ram_base,
	ram_size);
	reset_info->bootstrap_pc = ram_base;
	}

	if (kernel_size < 0) {
	fprintf(stderr, "qemu: could not load kernel '%s'\n",
	kernel_filename);
	exit(1);
	}
	}

	/* generate a rom with the hardware description */
	hw = hwsetup_init();
	hwsetup_add_cpu(hw, "LM32", 75000000);
	hwsetup_add_flash(hw, "flash", flash_base, flash_size);
	hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, ram_size);
	hwsetup_add_timer(hw, "timer0", timer0_base, timer0_irq);
	hwsetup_add_timer(hw, "timer1_dev_only", timer1_base, timer1_irq);
	hwsetup_add_timer(hw, "timer2_dev_only", timer2_base, timer2_irq);
	hwsetup_add_uart(hw, "uart", uart0_base, uart0_irq);
	hwsetup_add_trailer(hw);
	hwsetup_create_rom(hw, hwsetup_base);
	hwsetup_free(hw);

	reset_info->hwsetup_base = hwsetup_base;

	if (kernel_cmdline && strlen(kernel_cmdline)) {
	pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
	kernel_cmdline);
	reset_info->cmdline_base = cmdline_base;
	}

	if (initrd_filename) {
	size_t initrd_size;
	initrd_size = load_image_targphys(initrd_filename, initrd_base,
	initrd_max);
	reset_info->initrd_base = initrd_base;
	reset_info->initrd_size = initrd_size;
	}

	qemu_register_reset(main_cpu_reset, reset_info);
	}

	static QEMUMachine lm32_evr_machine = {
	.name = "lm32-evr",
	.desc = "LatticeMico32 EVR32 eval system",
	.init = lm32_evr_init,
	.is_default = 1,
	DEFAULT_MACHINE_OPTIONS,
	};

	static QEMUMachine lm32_uclinux_machine = {
	.name = "lm32-uclinux",
	.desc = "lm32 platform for uClinux and u-boot by Theobroma Systems",
	.init = lm32_uclinux_init,
	.is_default = 0,
	DEFAULT_MACHINE_OPTIONS,
	};

	static void lm32_machine_init(void)
	{
	qemu_register_machine(&lm32_uclinux_machine);
	qemu_register_machine(&lm32_evr_machine);
	}

	machine_init(lm32_machine_init);