Merge branch 'master' of git://git.qemu.org/qemu into next
[qemu/qemu-dev-zwu.git] / hw / etraxfs.c
blobb84d74a11e1705b08e4620175cb4a131160d83b0
1 /*
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
22 * THE SOFTWARE.
25 #include "sysbus.h"
26 #include "boards.h"
27 #include "net.h"
28 #include "flash.h"
29 #include "etraxfs.h"
30 #include "loader.h"
31 #include "elf.h"
32 #include "cris-boot.h"
33 #include "blockdev.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;
43 cpu_reset(env);
46 static
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)
52 DeviceState *dev;
53 SysBusDevice *s;
54 CPUState *env;
55 qemu_irq irq[30], nmi[2], *cpu_irq;
56 void *etraxfs_dmac;
57 struct etraxfs_dma_client *eth[2] = {NULL, NULL};
58 DriveInfo *dinfo;
59 int i;
60 ram_addr_t phys_ram;
61 ram_addr_t phys_flash;
62 ram_addr_t phys_intmem;
64 /* init CPUs */
65 if (cpu_model == NULL) {
66 cpu_model = "crisv32";
68 env = cpu_init(cpu_model);
70 /* allocate RAM */
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
75 internal memory. */
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),
85 FLASH_SIZE >> 16,
86 1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
87 0x555, 0x2aa, 0);
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);
111 if (nb_nics > 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);
117 if (eth[1]) {
118 etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]);
119 etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1);
122 /* 2 timers. */
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,
128 irq[0x14 + i]);
131 if (kernel_filename) {
132 li.image_filename = kernel_filename;
133 li.cmdline = kernel_cmdline;
134 cris_load_image(env, &li);
135 } else {
136 if (!dinfo) {
137 fprintf(stderr,
138 "Provide a kernel image or a flash image to boot from.\n");
139 exit(1);
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,
151 .is_default = 1,
154 static void bareetraxfs_machine_init(void)
156 qemu_register_machine(&bareetraxfs_machine);
159 machine_init(bareetraxfs_machine_init);