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
32 #include "cris-boot.h"
35 #define FLASH_SIZE 0x2000000
36 #define INTMEM_SIZE (128 * 1024)
38 static struct cris_load_info li
;
40 static void flash_cpu_reset(void *opaque
)
42 CPUState
*env
= opaque
;
47 void bareetraxfs_init (ram_addr_t ram_size
,
48 const char *boot_device
,
49 const char *kernel_filename
, const char *kernel_cmdline
,
50 const char *initrd_filename
, const char *cpu_model
)
55 qemu_irq irq
[30], nmi
[2], *cpu_irq
;
57 struct etraxfs_dma_client
*eth
[2] = {NULL
, NULL
};
61 ram_addr_t phys_flash
;
62 ram_addr_t phys_intmem
;
65 if (cpu_model
== NULL
) {
66 cpu_model
= "crisv32";
68 env
= cpu_init(cpu_model
);
71 phys_ram
= qemu_ram_alloc(NULL
, "etraxfs.ram", ram_size
);
72 cpu_register_physical_memory(0x40000000, ram_size
, phys_ram
| IO_MEM_RAM
);
74 /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
76 phys_intmem
= qemu_ram_alloc(NULL
, "etraxfs.chipram", INTMEM_SIZE
);
77 cpu_register_physical_memory(0x38000000, INTMEM_SIZE
,
78 phys_intmem
| IO_MEM_RAM
);
81 phys_flash
= qemu_ram_alloc(NULL
, "etraxfs.flash", FLASH_SIZE
);
82 dinfo
= drive_get(IF_PFLASH
, 0, 0);
83 pflash_cfi02_register(0x0, phys_flash
,
84 dinfo
? dinfo
->bdrv
: NULL
, (64 * 1024),
86 1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
88 cpu_irq
= cris_pic_init_cpu(env
);
89 dev
= qdev_create(NULL
, "etraxfs,pic");
90 /* FIXME: Is there a proper way to signal vectors to the CPU core? */
91 qdev_prop_set_ptr(dev
, "interrupt_vector", &env
->interrupt_vector
);
92 qdev_init_nofail(dev
);
93 s
= sysbus_from_qdev(dev
);
94 sysbus_mmio_map(s
, 0, 0x3001c000);
95 sysbus_connect_irq(s
, 0, cpu_irq
[0]);
96 sysbus_connect_irq(s
, 1, cpu_irq
[1]);
97 for (i
= 0; i
< 30; i
++) {
98 irq
[i
] = qdev_get_gpio_in(dev
, i
);
100 nmi
[0] = qdev_get_gpio_in(dev
, 30);
101 nmi
[1] = qdev_get_gpio_in(dev
, 31);
103 etraxfs_dmac
= etraxfs_dmac_init(0x30000000, 10);
104 for (i
= 0; i
< 10; i
++) {
105 /* On ETRAX, odd numbered channels are inputs. */
106 etraxfs_dmac_connect(etraxfs_dmac
, i
, irq
+ 7 + i
, i
& 1);
109 /* Add the two ethernet blocks. */
110 eth
[0] = etraxfs_eth_init(&nd_table
[0], 0x30034000, 1);
112 eth
[1] = etraxfs_eth_init(&nd_table
[1], 0x30036000, 2);
114 /* The DMA Connector block is missing, hardwire things for now. */
115 etraxfs_dmac_connect_client(etraxfs_dmac
, 0, eth
[0]);
116 etraxfs_dmac_connect_client(etraxfs_dmac
, 1, eth
[0] + 1);
118 etraxfs_dmac_connect_client(etraxfs_dmac
, 6, eth
[1]);
119 etraxfs_dmac_connect_client(etraxfs_dmac
, 7, eth
[1] + 1);
123 sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq
[0x1b], nmi
[1], NULL
);
124 sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq
[0x1b], nmi
[1], NULL
);
126 for (i
= 0; i
< 4; i
++) {
127 sysbus_create_simple("etraxfs,serial", 0x30026000 + i
* 0x2000,
131 if (kernel_filename
) {
132 li
.image_filename
= kernel_filename
;
133 li
.cmdline
= kernel_cmdline
;
134 cris_load_image(env
, &li
);
138 "Provide a kernel image or a flash image to boot from.\n");
142 /* Nothing more to do for flash images, those boot from addr 0. */
143 qemu_register_reset(flash_cpu_reset
, env
);
147 static QEMUMachine bareetraxfs_machine
= {
148 .name
= "bareetraxfs",
149 .desc
= "Bare ETRAX FS board",
150 .init
= bareetraxfs_init
,
154 static void bareetraxfs_machine_init(void)
156 qemu_register_machine(&bareetraxfs_machine
);
159 machine_init(bareetraxfs_machine_init
);