2 * QEMU ETRAX System Emulator
4 * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
31 static void main_cpu_reset(void *opaque
)
33 CPUState
*env
= opaque
;
37 /* Init functions for different blocks. */
38 extern qemu_irq
*etraxfs_pic_init(CPUState
*env
, target_phys_addr_t base
);
39 void etraxfs_timer_init(CPUState
*env
, qemu_irq
*irqs
,
40 target_phys_addr_t base
);
41 void etraxfs_ser_init(CPUState
*env
, qemu_irq
*irq
, CharDriverState
*chr
,
42 target_phys_addr_t base
);
44 #define FLASH_SIZE 0x2000000
45 #define INTMEM_SIZE (128 * 1024)
48 void bareetraxfs_init (ram_addr_t ram_size
, int vga_ram_size
,
49 const char *boot_device
, DisplayState
*ds
,
50 const char *kernel_filename
, const char *kernel_cmdline
,
51 const char *initrd_filename
, const char *cpu_model
)
58 ram_addr_t phys_intmem
;
61 if (cpu_model
== NULL
) {
62 cpu_model
= "crisv32";
64 env
= cpu_init(cpu_model
);
65 /* register_savevm("cpu", 0, 3, cpu_save, cpu_load, env); */
66 qemu_register_reset(main_cpu_reset
, env
);
69 phys_ram
= qemu_ram_alloc(ram_size
);
70 cpu_register_physical_memory(0x40000000, ram_size
, phys_ram
| IO_MEM_RAM
);
71 /* Unached mapping. */
72 cpu_register_physical_memory(0xc0000000, ram_size
, phys_ram
| IO_MEM_RAM
);
74 /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
75 internal memory. Cached and uncached mappings. */
76 phys_intmem
= qemu_ram_alloc(INTMEM_SIZE
);
77 cpu_register_physical_memory(0xb8000000, INTMEM_SIZE
,
78 phys_intmem
| IO_MEM_RAM
);
79 cpu_register_physical_memory(0x38000000, INTMEM_SIZE
,
80 phys_intmem
| IO_MEM_RAM
);
82 cpu_register_physical_memory(0, FLASH_SIZE
, IO_MEM_ROM
);
83 cpu_register_physical_memory(0x80000000, FLASH_SIZE
, IO_MEM_ROM
);
84 cpu_register_physical_memory(0x04000000, FLASH_SIZE
, IO_MEM_ROM
);
85 cpu_register_physical_memory(0x84000000, FLASH_SIZE
,
86 0x04000000 | IO_MEM_ROM
);
87 index
= drive_get_index(IF_PFLASH
, 0, 0);
88 pflash_cfi01_register(0x80000000, FLASH_SIZE
,
89 drives_table
[index
].bdrv
, 65536, FLASH_SIZE
>> 16,
90 4, 0x0000, 0x0000, 0x0000, 0x0000);
92 pic
= etraxfs_pic_init(env
, 0xb001c000);
94 etraxfs_timer_init(env
, pic
+ 26, 0xb001e000);
95 etraxfs_timer_init(env
, pic
+ 26, 0xb005e000);
97 etraxfs_ser_init(env
, pic
+ 19, serial_hds
[0], 0xb0026000);
99 etraxfs_ser_init(env
, pic
+ 20, serial_hds
[1], 0xb0028000);
101 etraxfs_ser_init(env
, pic
+ 21, serial_hds
[2], 0xb002a000);
103 etraxfs_ser_init(env
, pic
+ 22, serial_hds
[3], 0xb002c000);
106 /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis devboard
108 kernel_size
= load_elf(kernel_filename
, 0, &env
->pc
, NULL
, NULL
);
110 /* Takes a kimage from the axis devboard SDK. */
111 kernel_size
= load_image(kernel_filename
, phys_ram_base
+ 0x4000);
112 env
->pc
= 0x40004000;
114 /* magic for boot. */
115 env
->regs
[8] = 0x56902387;
116 env
->regs
[9] = 0x40004000 + kernel_size
;
119 unsigned char *ptr
= phys_ram_base
+ 0x4000;
121 for (i
= 0; i
< 8; i
++)
123 printf ("%2.2x ", ptr
[i
]);
128 printf ("pc =%x\n", env
->pc
);
129 printf ("ram size =%d\n", ram_size
);
130 printf ("kernel name =%s\n", kernel_filename
);
131 printf ("kernel size =%d\n", kernel_size
);
132 printf ("cpu haltd =%d\n", env
->halted
);
139 QEMUMachine bareetraxfs_machine
= {
141 "Bare ETRAX FS board",