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-rw-r--r--hw/lm32/Makefile.objs8
-rw-r--r--hw/lm32/lm32_boards.c308
-rw-r--r--hw/lm32/milkymist.c218
3 files changed, 530 insertions, 4 deletions
diff --git a/hw/lm32/Makefile.objs b/hw/lm32/Makefile.objs
index 4e1843c11d..4592fe5fc8 100644
--- a/hw/lm32/Makefile.objs
+++ b/hw/lm32/Makefile.objs
@@ -1,7 +1,3 @@
-# LM32 boards
-obj-y += lm32_boards.o
-obj-y += milkymist.o
-
# LM32 peripherals
obj-y += lm32_pic.o
obj-y += lm32_juart.o
@@ -21,3 +17,7 @@ obj-y += milkymist-vgafb.o
obj-y += framebuffer.o
obj-y := $(addprefix ../,$(obj-y))
+
+# LM32 boards
+obj-y += lm32_boards.o
+obj-y += milkymist.o
diff --git a/hw/lm32/lm32_boards.c b/hw/lm32/lm32_boards.c
new file mode 100644
index 0000000000..1ce466a1b1
--- /dev/null
+++ b/hw/lm32/lm32_boards.c
@@ -0,0 +1,308 @@
+/*
+ * 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 "hw/sysbus.h"
+#include "hw/hw.h"
+#include "hw/flash.h"
+#include "hw/devices.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "sysemu/blockdev.h"
+#include "elf.h"
+#include "hw/lm32_hwsetup.h"
+#include "hw/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);
diff --git a/hw/lm32/milkymist.c b/hw/lm32/milkymist.c
new file mode 100644
index 0000000000..fd36de57b5
--- /dev/null
+++ b/hw/lm32/milkymist.c
@@ -0,0 +1,218 @@
+/*
+ * QEMU model for the Milkymist board.
+ *
+ * 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 "hw/sysbus.h"
+#include "hw/hw.h"
+#include "hw/flash.h"
+#include "sysemu/sysemu.h"
+#include "hw/devices.h"
+#include "hw/boards.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "sysemu/blockdev.h"
+#include "hw/milkymist-hw.h"
+#include "hw/lm32.h"
+#include "exec/address-spaces.h"
+
+#define BIOS_FILENAME "mmone-bios.bin"
+#define BIOS_OFFSET 0x00860000
+#define BIOS_SIZE (512*1024)
+#define KERNEL_LOAD_ADDR 0x40000000
+
+typedef struct {
+ LM32CPU *cpu;
+ hwaddr bootstrap_pc;
+ hwaddr flash_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 = reset_info->bootstrap_pc;
+ env->regs[R_R1] = reset_info->cmdline_base;
+ env->regs[R_R2] = reset_info->initrd_base;
+ env->regs[R_R3] = reset_info->initrd_base + reset_info->initrd_size;
+ env->eba = reset_info->flash_base;
+ env->deba = reset_info->flash_base;
+}
+
+static void
+milkymist_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;
+ int kernel_size;
+ DriveInfo *dinfo;
+ MemoryRegion *address_space_mem = get_system_memory();
+ MemoryRegion *phys_sdram = g_new(MemoryRegion, 1);
+ qemu_irq irq[32], *cpu_irq;
+ int i;
+ char *bios_filename;
+ ResetInfo *reset_info;
+
+ /* memory map */
+ hwaddr flash_base = 0x00000000;
+ size_t flash_sector_size = 128 * 1024;
+ size_t flash_size = 32 * 1024 * 1024;
+ hwaddr sdram_base = 0x40000000;
+ size_t sdram_size = 128 * 1024 * 1024;
+
+ hwaddr initrd_base = sdram_base + 0x1002000;
+ hwaddr cmdline_base = sdram_base + 0x1000000;
+ size_t initrd_max = sdram_size - 0x1002000;
+
+ 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;
+
+ cpu_lm32_set_phys_msb_ignore(env, 1);
+
+ memory_region_init_ram(phys_sdram, "milkymist.sdram", sdram_size);
+ vmstate_register_ram_global(phys_sdram);
+ memory_region_add_subregion(address_space_mem, sdram_base, phys_sdram);
+
+ dinfo = drive_get(IF_PFLASH, 0, 0);
+ /* Numonyx JS28F256J3F105 */
+ pflash_cfi01_register(flash_base, NULL, "milkymist.flash", flash_size,
+ dinfo ? dinfo->bdrv : NULL, flash_sector_size,
+ flash_size / flash_sector_size, 2,
+ 0x00, 0x89, 0x00, 0x1d, 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);
+ }
+
+ /* load bios rom */
+ if (bios_name == NULL) {
+ bios_name = BIOS_FILENAME;
+ }
+ bios_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
+
+ if (bios_filename) {
+ load_image_targphys(bios_filename, BIOS_OFFSET, BIOS_SIZE);
+ }
+
+ reset_info->bootstrap_pc = BIOS_OFFSET;
+
+ /* if no kernel is given no valid bios rom is a fatal error */
+ if (!kernel_filename && !dinfo && !bios_filename) {
+ fprintf(stderr, "qemu: could not load Milkymist One bios '%s'\n",
+ bios_name);
+ exit(1);
+ }
+
+ milkymist_uart_create(0x60000000, irq[0]);
+ milkymist_sysctl_create(0x60001000, irq[1], irq[2], irq[3],
+ 80000000, 0x10014d31, 0x0000041f, 0x00000001);
+ milkymist_hpdmc_create(0x60002000);
+ milkymist_vgafb_create(0x60003000, 0x40000000, 0x0fffffff);
+ milkymist_memcard_create(0x60004000);
+ milkymist_ac97_create(0x60005000, irq[4], irq[5], irq[6], irq[7]);
+ milkymist_pfpu_create(0x60006000, irq[8]);
+ milkymist_tmu2_create(0x60007000, irq[9]);
+ milkymist_minimac2_create(0x60008000, 0x30000000, irq[10], irq[11]);
+ milkymist_softusb_create(0x6000f000, irq[15],
+ 0x20000000, 0x1000, 0x20020000, 0x2000);
+
+ /* make sure juart isn't the first chardev */
+ env->juart_state = lm32_juart_init();
+
+ if (kernel_filename) {
+ uint64_t entry;
+
+ /* Boots a kernel elf binary. */
+ 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, sdram_base,
+ sdram_size);
+ reset_info->bootstrap_pc = sdram_base;
+ }
+
+ if (kernel_size < 0) {
+ fprintf(stderr, "qemu: could not load kernel '%s'\n",
+ kernel_filename);
+ exit(1);
+ }
+ }
+
+ if (kernel_cmdline && strlen(kernel_cmdline)) {
+ pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
+ kernel_cmdline);
+ reset_info->cmdline_base = (uint32_t)cmdline_base;
+ }
+
+ if (initrd_filename) {
+ size_t initrd_size;
+ initrd_size = load_image_targphys(initrd_filename, initrd_base,
+ initrd_max);
+ reset_info->initrd_base = (uint32_t)initrd_base;
+ reset_info->initrd_size = (uint32_t)initrd_size;
+ }
+
+ qemu_register_reset(main_cpu_reset, reset_info);
+}
+
+static QEMUMachine milkymist_machine = {
+ .name = "milkymist",
+ .desc = "Milkymist One",
+ .init = milkymist_init,
+ .is_default = 0,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void milkymist_machine_init(void)
+{
+ qemu_register_machine(&milkymist_machine);
+}
+
+machine_init(milkymist_machine_init);
generated by cgit v1.2.3 (git 2.26.2) at 2024-12-26 04:04:33 +0000