diff options
author | Anthony Liguori <aliguori@us.ibm.com> | 2013-03-10 19:39:07 -0500 |
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committer | Anthony Liguori <aliguori@us.ibm.com> | 2013-03-10 19:56:35 -0500 |
commit | 6e72a00f909dcd093fbdd1faa2b3c8caa1697a6c (patch) | |
tree | 8f275496c83f840e00daf4af97beac94b3a3e0b3 /hw/lm32/milkymist.c | |
parent | 6a245c666d02210b8461952eccc17379fdeedd9f (diff) | |
parent | 7a2771d1541ec9a0c585e9b853e5f4dc036919ad (diff) |
Merge remote-tracking branch 'bonzini/hw-dirs' into staging
* bonzini/hw-dirs:
sh: move files referencing CPU to hw/sh4/
ppc: move more files to hw/ppc
ppc: move files referencing CPU to hw/ppc/
m68k: move files referencing CPU to hw/m68k/
i386: move files referencing CPU to hw/i386/
arm: move files referencing CPU to hw/arm/
hw: move boards and other isolated files to hw/ARCH
ppc: express FDT dependency of pSeries and e500 boards via default-configs/
build: always link device_tree.o into emulators if libfdt available
hw: include hw header files with full paths
ppc: do not use ../ in include files
vt82c686: vt82c686 is not a PCI host bridge
virtio-9p: remove PCI dependencies from hw/9pfs/
virtio-9p: use CONFIG_VIRTFS, not CONFIG_LINUX
hw: move device-hotplug.o to toplevel, compile it once
hw: move qdev-monitor.o to toplevel directory
hw: move fifo.[ch] to libqemuutil
hw: move char backends to backends/
Conflicts:
backends/baum.c
backends/msmouse.c
hw/a15mpcore.c
hw/arm/Makefile.objs
hw/arm/pic_cpu.c
hw/dataplane/event-poll.c
hw/dataplane/virtio-blk.c
include/char/baum.h
include/char/msmouse.h
qemu-char.c
vl.c
Resolve conflicts caused by header movements.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'hw/lm32/milkymist.c')
-rw-r--r-- | hw/lm32/milkymist.c | 218 |
1 files changed, 218 insertions, 0 deletions
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); |