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83fa1010 TS |
1 | /* |
2 | * QEMU ETRAX System Emulator | |
3 | * | |
4 | * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB. | |
5 | * | |
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: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
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. | |
23 | */ | |
83fa1010 | 24 | |
4b816985 EI |
25 | #include "sysbus.h" |
26 | #include "boards.h" | |
27 | #include "sysemu.h" | |
28 | #include "net.h" | |
3b1fd90e | 29 | #include "flash.h" |
5ef98b47 | 30 | #include "etraxfs.h" |
b01cde7b EI |
31 | |
32 | #define FLASH_SIZE 0x2000000 | |
33 | #define INTMEM_SIZE (128 * 1024) | |
83fa1010 | 34 | |
5439779e EI |
35 | static uint32_t bootstrap_pc; |
36 | ||
37 | static void main_cpu_reset(void *opaque) | |
38 | { | |
39 | CPUState *env = opaque; | |
40 | cpu_reset(env); | |
41 | ||
5439779e EI |
42 | env->pc = bootstrap_pc; |
43 | } | |
48318011 | 44 | |
83fa1010 | 45 | static |
fbe1b595 | 46 | void bareetraxfs_init (ram_addr_t ram_size, |
3023f332 | 47 | const char *boot_device, |
83fa1010 TS |
48 | const char *kernel_filename, const char *kernel_cmdline, |
49 | const char *initrd_filename, const char *cpu_model) | |
50 | { | |
fd6dc90b | 51 | DeviceState *dev; |
83fa1010 | 52 | CPUState *env; |
fd6dc90b | 53 | qemu_irq irq[30], nmi[2], *cpu_irq; |
fa1bdde4 | 54 | void *etraxfs_dmac; |
4eeed608 | 55 | struct etraxfs_dma_client *eth[2] = {NULL, NULL}; |
83fa1010 | 56 | int kernel_size; |
48318011 | 57 | int i; |
e62b5b13 | 58 | ram_addr_t phys_ram; |
5439779e | 59 | ram_addr_t phys_flash; |
b01cde7b | 60 | ram_addr_t phys_intmem; |
83fa1010 TS |
61 | |
62 | /* init CPUs */ | |
63 | if (cpu_model == NULL) { | |
64 | cpu_model = "crisv32"; | |
65 | } | |
aaed909a | 66 | env = cpu_init(cpu_model); |
83fa1010 | 67 | qemu_register_reset(main_cpu_reset, env); |
83fa1010 | 68 | |
83fa1010 | 69 | /* allocate RAM */ |
e62b5b13 EI |
70 | phys_ram = qemu_ram_alloc(ram_size); |
71 | cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM); | |
e62b5b13 | 72 | |
b01cde7b | 73 | /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the |
980f8a0b | 74 | internal memory. */ |
b01cde7b | 75 | phys_intmem = qemu_ram_alloc(INTMEM_SIZE); |
5439779e EI |
76 | cpu_register_physical_memory(0x38000000, INTMEM_SIZE, |
77 | phys_intmem | IO_MEM_RAM); | |
78 | ||
e62b5b13 | 79 | |
5439779e EI |
80 | phys_flash = qemu_ram_alloc(FLASH_SIZE); |
81 | i = drive_get_index(IF_PFLASH, 0, 0); | |
5439779e | 82 | pflash_cfi02_register(0x0, phys_flash, |
9eee9a5d | 83 | i != -1 ? drives_table[i].bdrv : NULL, (64 * 1024), |
5439779e EI |
84 | FLASH_SIZE >> 16, |
85 | 1, 2, 0x0000, 0x0000, 0x0000, 0x0000, | |
86 | 0x555, 0x2aa); | |
fd6dc90b EI |
87 | cpu_irq = cris_pic_init_cpu(env); |
88 | dev = sysbus_create_varargs("etraxfs,pic", 0x3001c000, | |
89 | cpu_irq[0], cpu_irq[1], NULL); | |
90 | /* FIXME: Is there a proper way to signal vectors to the CPU core? */ | |
91 | qdev_set_prop_ptr(dev, "interrupt_vector", &env->interrupt_vector); | |
92 | for (i = 0; i < 30; i++) { | |
93 | irq[i] = qdev_get_irq_sink(dev, i); | |
94 | } | |
95 | nmi[0] = qdev_get_irq_sink(dev, 30); | |
96 | nmi[1] = qdev_get_irq_sink(dev, 31); | |
73cfd29f | 97 | |
980f8a0b | 98 | etraxfs_dmac = etraxfs_dmac_init(env, 0x30000000, 10); |
48318011 | 99 | for (i = 0; i < 10; i++) { |
5439779e | 100 | /* On ETRAX, odd numbered channels are inputs. */ |
73cfd29f | 101 | etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); |
48318011 EI |
102 | } |
103 | ||
4eeed608 | 104 | /* Add the two ethernet blocks. */ |
678fdca8 | 105 | eth[0] = etraxfs_eth_init(&nd_table[0], env, 0x30034000, 1); |
0ae18cee | 106 | if (nb_nics > 1) |
678fdca8 | 107 | eth[1] = etraxfs_eth_init(&nd_table[1], env, 0x30036000, 2); |
5439779e | 108 | |
48318011 | 109 | /* The DMA Connector block is missing, hardwire things for now. */ |
4eeed608 EI |
110 | etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]); |
111 | etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1); | |
112 | if (eth[1]) { | |
5439779e EI |
113 | etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]); |
114 | etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1); | |
4eeed608 | 115 | } |
48318011 | 116 | |
ca87d03b | 117 | /* 2 timers. */ |
3b1fd90e EI |
118 | sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); |
119 | sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); | |
48318011 EI |
120 | |
121 | for (i = 0; i < 4; i++) { | |
4b816985 EI |
122 | sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, |
123 | irq[0x14 + i]); | |
48318011 | 124 | } |
83fa1010 | 125 | |
5439779e | 126 | if (kernel_filename) { |
f5a5cca3 EI |
127 | uint64_t entry, high; |
128 | int kcmdline_len; | |
129 | ||
5439779e EI |
130 | /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis |
131 | devboard SDK. */ | |
8ab94444 | 132 | kernel_size = load_elf(kernel_filename, -0x80000000LL, |
f5a5cca3 | 133 | &entry, NULL, &high); |
fa1bdde4 EI |
134 | bootstrap_pc = entry; |
135 | if (kernel_size < 0) { | |
136 | /* Takes a kimage from the axis devboard SDK. */ | |
dcac9679 PB |
137 | kernel_size = load_image_targphys(kernel_filename, 0x40004000, |
138 | ram_size); | |
fa1bdde4 | 139 | bootstrap_pc = 0x40004000; |
fa1bdde4 EI |
140 | env->regs[9] = 0x40004000 + kernel_size; |
141 | } | |
8ab94444 | 142 | env->regs[8] = 0x56902387; /* RAM init magic. */ |
f5a5cca3 EI |
143 | |
144 | if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) { | |
145 | if (kcmdline_len > 256) { | |
146 | fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n"); | |
147 | exit(1); | |
148 | } | |
f5a5cca3 EI |
149 | /* Let the kernel know we are modifying the cmdline. */ |
150 | env->regs[10] = 0x87109563; | |
d33fd9d1 EI |
151 | env->regs[11] = 0x40000000; |
152 | pstrcpy_targphys(env->regs[11], 256, kernel_cmdline); | |
f5a5cca3 | 153 | } |
83fa1010 | 154 | } |
5439779e | 155 | env->pc = bootstrap_pc; |
83fa1010 TS |
156 | |
157 | printf ("pc =%x\n", env->pc); | |
48318011 | 158 | printf ("ram size =%ld\n", ram_size); |
83fa1010 TS |
159 | } |
160 | ||
f80f9ec9 | 161 | static QEMUMachine bareetraxfs_machine = { |
4b32e168 AL |
162 | .name = "bareetraxfs", |
163 | .desc = "Bare ETRAX FS board", | |
164 | .init = bareetraxfs_init, | |
0c257437 | 165 | .is_default = 1, |
83fa1010 | 166 | }; |
f80f9ec9 AL |
167 | |
168 | static void bareetraxfs_machine_init(void) | |
169 | { | |
170 | qemu_register_machine(&bareetraxfs_machine); | |
171 | } | |
172 | ||
173 | machine_init(bareetraxfs_machine_init); |