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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; |
562183de | 52 | SysBusDevice *s; |
83fa1010 | 53 | CPUState *env; |
fd6dc90b | 54 | qemu_irq irq[30], nmi[2], *cpu_irq; |
fa1bdde4 | 55 | void *etraxfs_dmac; |
4eeed608 | 56 | struct etraxfs_dma_client *eth[2] = {NULL, NULL}; |
83fa1010 | 57 | int kernel_size; |
48318011 | 58 | int i; |
e62b5b13 | 59 | ram_addr_t phys_ram; |
5439779e | 60 | ram_addr_t phys_flash; |
b01cde7b | 61 | ram_addr_t phys_intmem; |
83fa1010 TS |
62 | |
63 | /* init CPUs */ | |
64 | if (cpu_model == NULL) { | |
65 | cpu_model = "crisv32"; | |
66 | } | |
aaed909a | 67 | env = cpu_init(cpu_model); |
a08d4367 | 68 | qemu_register_reset(main_cpu_reset, env); |
83fa1010 | 69 | |
83fa1010 | 70 | /* allocate RAM */ |
e62b5b13 EI |
71 | phys_ram = qemu_ram_alloc(ram_size); |
72 | cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM); | |
e62b5b13 | 73 | |
b01cde7b | 74 | /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the |
980f8a0b | 75 | internal memory. */ |
b01cde7b | 76 | phys_intmem = qemu_ram_alloc(INTMEM_SIZE); |
5439779e EI |
77 | cpu_register_physical_memory(0x38000000, INTMEM_SIZE, |
78 | phys_intmem | IO_MEM_RAM); | |
79 | ||
e62b5b13 | 80 | |
5439779e EI |
81 | phys_flash = qemu_ram_alloc(FLASH_SIZE); |
82 | i = drive_get_index(IF_PFLASH, 0, 0); | |
5439779e | 83 | pflash_cfi02_register(0x0, phys_flash, |
9eee9a5d | 84 | i != -1 ? drives_table[i].bdrv : NULL, (64 * 1024), |
5439779e EI |
85 | FLASH_SIZE >> 16, |
86 | 1, 2, 0x0000, 0x0000, 0x0000, 0x0000, | |
87 | 0x555, 0x2aa); | |
fd6dc90b | 88 | cpu_irq = cris_pic_init_cpu(env); |
562183de | 89 | dev = qdev_create(NULL, "etraxfs,pic"); |
fd6dc90b EI |
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); | |
562183de EI |
92 | qdev_init(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]); | |
fd6dc90b | 97 | for (i = 0; i < 30; i++) { |
067a3ddc | 98 | irq[i] = qdev_get_gpio_in(dev, i); |
fd6dc90b | 99 | } |
067a3ddc PB |
100 | nmi[0] = qdev_get_gpio_in(dev, 30); |
101 | nmi[1] = qdev_get_gpio_in(dev, 31); | |
73cfd29f | 102 | |
ba494313 | 103 | etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10); |
48318011 | 104 | for (i = 0; i < 10; i++) { |
5439779e | 105 | /* On ETRAX, odd numbered channels are inputs. */ |
73cfd29f | 106 | etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); |
48318011 EI |
107 | } |
108 | ||
4eeed608 | 109 | /* Add the two ethernet blocks. */ |
ba494313 | 110 | eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1); |
0ae18cee | 111 | if (nb_nics > 1) |
ba494313 | 112 | eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2); |
5439779e | 113 | |
48318011 | 114 | /* The DMA Connector block is missing, hardwire things for now. */ |
4eeed608 EI |
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]) { | |
5439779e EI |
118 | etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]); |
119 | etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1); | |
4eeed608 | 120 | } |
48318011 | 121 | |
ca87d03b | 122 | /* 2 timers. */ |
3b1fd90e EI |
123 | sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); |
124 | sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); | |
48318011 EI |
125 | |
126 | for (i = 0; i < 4; i++) { | |
4b816985 EI |
127 | sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, |
128 | irq[0x14 + i]); | |
48318011 | 129 | } |
83fa1010 | 130 | |
5439779e | 131 | if (kernel_filename) { |
f5a5cca3 EI |
132 | uint64_t entry, high; |
133 | int kcmdline_len; | |
134 | ||
5439779e EI |
135 | /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis |
136 | devboard SDK. */ | |
8ab94444 | 137 | kernel_size = load_elf(kernel_filename, -0x80000000LL, |
f5a5cca3 | 138 | &entry, NULL, &high); |
fa1bdde4 EI |
139 | bootstrap_pc = entry; |
140 | if (kernel_size < 0) { | |
141 | /* Takes a kimage from the axis devboard SDK. */ | |
dcac9679 PB |
142 | kernel_size = load_image_targphys(kernel_filename, 0x40004000, |
143 | ram_size); | |
fa1bdde4 | 144 | bootstrap_pc = 0x40004000; |
fa1bdde4 EI |
145 | env->regs[9] = 0x40004000 + kernel_size; |
146 | } | |
8ab94444 | 147 | env->regs[8] = 0x56902387; /* RAM init magic. */ |
f5a5cca3 EI |
148 | |
149 | if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) { | |
150 | if (kcmdline_len > 256) { | |
151 | fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n"); | |
152 | exit(1); | |
153 | } | |
f5a5cca3 EI |
154 | /* Let the kernel know we are modifying the cmdline. */ |
155 | env->regs[10] = 0x87109563; | |
d33fd9d1 EI |
156 | env->regs[11] = 0x40000000; |
157 | pstrcpy_targphys(env->regs[11], 256, kernel_cmdline); | |
f5a5cca3 | 158 | } |
83fa1010 | 159 | } |
5439779e | 160 | env->pc = bootstrap_pc; |
83fa1010 TS |
161 | |
162 | printf ("pc =%x\n", env->pc); | |
48318011 | 163 | printf ("ram size =%ld\n", ram_size); |
83fa1010 TS |
164 | } |
165 | ||
f80f9ec9 | 166 | static QEMUMachine bareetraxfs_machine = { |
4b32e168 AL |
167 | .name = "bareetraxfs", |
168 | .desc = "Bare ETRAX FS board", | |
169 | .init = bareetraxfs_init, | |
0c257437 | 170 | .is_default = 1, |
83fa1010 | 171 | }; |
f80f9ec9 AL |
172 | |
173 | static void bareetraxfs_machine_init(void) | |
174 | { | |
175 | qemu_register_machine(&bareetraxfs_machine); | |
176 | } | |
177 | ||
178 | machine_init(bareetraxfs_machine_init); |