diff options
author | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-23 19:58:11 +0000 |
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committer | pbrook <pbrook@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-05-23 19:58:11 +0000 |
commit | 0633879f1ac38b18d84c46dda506300cc8329723 (patch) | |
tree | 8df64e0861c32132c7a08af16451629f1ec69112 /hw/an5206.c | |
parent | 9daea9067aae3e324f14c6b139621c10683fc550 (diff) |
m68k/ColdFire system emulation.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2851 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/an5206.c')
-rw-r--r-- | hw/an5206.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/hw/an5206.c b/hw/an5206.c new file mode 100644 index 0000000000..1306d1964d --- /dev/null +++ b/hw/an5206.c @@ -0,0 +1,89 @@ +/* + * Arnewsh 5206 ColdFire system emulation. + * + * Copyright (c) 2007 CodeSourcery. + * + * This code is licenced under the GPL + */ + +#include "vl.h" + +#define KERNEL_LOAD_ADDR 0x10000 +#define AN5206_MBAR_ADDR 0x10000000 +#define AN5206_RAMBAR_ADDR 0x20000000 + +/* Stub functions for hardware that doesn't exist. */ +void pic_info(void) +{ +} + +void irq_info(void) +{ +} + +void DMA_run (void) +{ +} + +/* Board init. */ + +static void an5206_init(int ram_size, int vga_ram_size, int boot_device, + DisplayState *ds, const char **fd_filename, int snapshot, + const char *kernel_filename, const char *kernel_cmdline, + const char *initrd_filename, const char *cpu_model) +{ + CPUState *env; + int kernel_size; + uint64_t elf_entry; + target_ulong entry; + + env = cpu_init(); + if (!cpu_model) + cpu_model = "m5206"; + cpu_m68k_set_model(env, cpu_model); + + /* Initialize CPU registers. */ + env->vbr = 0; + /* TODO: allow changing MBAR and RAMBAR. */ + env->mbar = AN5206_MBAR_ADDR | 1; + env->rambar0 = AN5206_RAMBAR_ADDR | 1; + + /* DRAM at address zero */ + cpu_register_physical_memory(0, ram_size, + qemu_ram_alloc(ram_size) | IO_MEM_RAM); + + /* Internal SRAM. */ + cpu_register_physical_memory(AN5206_RAMBAR_ADDR, 512, + qemu_ram_alloc(512) | IO_MEM_RAM); + + mcf5206_init(AN5206_MBAR_ADDR, env); + + /* Load kernel. */ + if (!kernel_filename) { + fprintf(stderr, "Kernel image must be specified\n"); + exit(1); + } + + kernel_size = load_elf(kernel_filename, 0, &elf_entry, NULL, NULL); + entry = elf_entry; + if (kernel_size < 0) { + kernel_size = load_uboot(kernel_filename, &entry, NULL); + } + if (kernel_size < 0) { + kernel_size = load_image(kernel_filename, + phys_ram_base + KERNEL_LOAD_ADDR); + entry = KERNEL_LOAD_ADDR; + } + if (kernel_size < 0) { + fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); + exit(1); + } + + env->pc = entry; +} + +QEMUMachine an5206_machine = { + "an5206", + "Arnewsh 5206", + an5206_init, +}; |