root / hw / etraxfs.c @ eae6bcbf
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1 | 83fa1010 | ths | /*
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2 | 83fa1010 | ths | * QEMU ETRAX System Emulator
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3 | 83fa1010 | ths | *
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4 | 83fa1010 | ths | * Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
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5 | 83fa1010 | ths | *
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6 | 83fa1010 | ths | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | 83fa1010 | ths | * of this software and associated documentation files (the "Software"), to deal
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8 | 83fa1010 | ths | * in the Software without restriction, including without limitation the rights
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9 | 83fa1010 | ths | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | 83fa1010 | ths | * copies of the Software, and to permit persons to whom the Software is
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11 | 83fa1010 | ths | * furnished to do so, subject to the following conditions:
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12 | 83fa1010 | ths | *
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13 | 83fa1010 | ths | * The above copyright notice and this permission notice shall be included in
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14 | 83fa1010 | ths | * all copies or substantial portions of the Software.
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15 | 83fa1010 | ths | *
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16 | 83fa1010 | ths | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | 83fa1010 | ths | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | 83fa1010 | ths | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | 83fa1010 | ths | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | 83fa1010 | ths | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | 83fa1010 | ths | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | 83fa1010 | ths | * THE SOFTWARE.
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23 | 83fa1010 | ths | */
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24 | 83fa1010 | ths | |
25 | 4b816985 | Edgar E. Iglesias | #include "sysbus.h" |
26 | 4b816985 | Edgar E. Iglesias | #include "boards.h" |
27 | 4b816985 | Edgar E. Iglesias | #include "sysemu.h" |
28 | 4b816985 | Edgar E. Iglesias | #include "net.h" |
29 | 3b1fd90e | Edgar E. Iglesias | #include "flash.h" |
30 | 5ef98b47 | edgar_igl | #include "etraxfs.h" |
31 | b01cde7b | edgar_igl | |
32 | b01cde7b | edgar_igl | #define FLASH_SIZE 0x2000000 |
33 | b01cde7b | edgar_igl | #define INTMEM_SIZE (128 * 1024) |
34 | 83fa1010 | ths | |
35 | 5439779e | edgar_igl | static uint32_t bootstrap_pc;
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36 | 5439779e | edgar_igl | |
37 | 5439779e | edgar_igl | static void main_cpu_reset(void *opaque) |
38 | 5439779e | edgar_igl | { |
39 | 5439779e | edgar_igl | CPUState *env = opaque; |
40 | 5439779e | edgar_igl | cpu_reset(env); |
41 | 5439779e | edgar_igl | |
42 | 5439779e | edgar_igl | env->pc = bootstrap_pc; |
43 | 5439779e | edgar_igl | } |
44 | 48318011 | edgar_igl | |
45 | 83fa1010 | ths | static
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46 | fbe1b595 | Paul Brook | void bareetraxfs_init (ram_addr_t ram_size,
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47 | 3023f332 | aliguori | const char *boot_device, |
48 | 83fa1010 | ths | const char *kernel_filename, const char *kernel_cmdline, |
49 | 83fa1010 | ths | const char *initrd_filename, const char *cpu_model) |
50 | 83fa1010 | ths | { |
51 | fd6dc90b | Edgar E. Iglesias | DeviceState *dev; |
52 | 562183de | Edgar E. Iglesias | SysBusDevice *s; |
53 | 83fa1010 | ths | CPUState *env; |
54 | fd6dc90b | Edgar E. Iglesias | qemu_irq irq[30], nmi[2], *cpu_irq; |
55 | fa1bdde4 | edgar_igl | void *etraxfs_dmac;
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56 | 4eeed608 | edgar_igl | struct etraxfs_dma_client *eth[2] = {NULL, NULL}; |
57 | 83fa1010 | ths | int kernel_size;
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58 | 48318011 | edgar_igl | int i;
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59 | e62b5b13 | edgar_igl | ram_addr_t phys_ram; |
60 | 5439779e | edgar_igl | ram_addr_t phys_flash; |
61 | b01cde7b | edgar_igl | ram_addr_t phys_intmem; |
62 | 83fa1010 | ths | |
63 | 83fa1010 | ths | /* init CPUs */
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64 | 83fa1010 | ths | if (cpu_model == NULL) { |
65 | 83fa1010 | ths | cpu_model = "crisv32";
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66 | 83fa1010 | ths | } |
67 | aaed909a | bellard | env = cpu_init(cpu_model); |
68 | 8217606e | Jan Kiszka | qemu_register_reset(main_cpu_reset, 0, env);
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69 | 83fa1010 | ths | |
70 | 83fa1010 | ths | /* allocate RAM */
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71 | e62b5b13 | edgar_igl | phys_ram = qemu_ram_alloc(ram_size); |
72 | e62b5b13 | edgar_igl | cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
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73 | e62b5b13 | edgar_igl | |
74 | b01cde7b | edgar_igl | /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
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75 | 980f8a0b | edgar_igl | internal memory. */
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76 | b01cde7b | edgar_igl | phys_intmem = qemu_ram_alloc(INTMEM_SIZE); |
77 | 5439779e | edgar_igl | cpu_register_physical_memory(0x38000000, INTMEM_SIZE,
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78 | 5439779e | edgar_igl | phys_intmem | IO_MEM_RAM); |
79 | 5439779e | edgar_igl | |
80 | e62b5b13 | edgar_igl | |
81 | 5439779e | edgar_igl | phys_flash = qemu_ram_alloc(FLASH_SIZE); |
82 | 5439779e | edgar_igl | i = drive_get_index(IF_PFLASH, 0, 0); |
83 | 5439779e | edgar_igl | pflash_cfi02_register(0x0, phys_flash,
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84 | 9eee9a5d | edgar_igl | i != -1 ? drives_table[i].bdrv : NULL, (64 * 1024), |
85 | 5439779e | edgar_igl | FLASH_SIZE >> 16,
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86 | 5439779e | edgar_igl | 1, 2, 0x0000, 0x0000, 0x0000, 0x0000, |
87 | 5439779e | edgar_igl | 0x555, 0x2aa); |
88 | fd6dc90b | Edgar E. Iglesias | cpu_irq = cris_pic_init_cpu(env); |
89 | 562183de | Edgar E. Iglesias | dev = qdev_create(NULL, "etraxfs,pic"); |
90 | fd6dc90b | Edgar E. Iglesias | /* FIXME: Is there a proper way to signal vectors to the CPU core? */
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91 | fd6dc90b | Edgar E. Iglesias | qdev_set_prop_ptr(dev, "interrupt_vector", &env->interrupt_vector);
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92 | 562183de | Edgar E. Iglesias | qdev_init(dev); |
93 | 562183de | Edgar E. Iglesias | s = sysbus_from_qdev(dev); |
94 | 562183de | Edgar E. Iglesias | sysbus_mmio_map(s, 0, 0x3001c000); |
95 | 562183de | Edgar E. Iglesias | sysbus_connect_irq(s, 0, cpu_irq[0]); |
96 | 562183de | Edgar E. Iglesias | sysbus_connect_irq(s, 1, cpu_irq[1]); |
97 | fd6dc90b | Edgar E. Iglesias | for (i = 0; i < 30; i++) { |
98 | 067a3ddc | Paul Brook | irq[i] = qdev_get_gpio_in(dev, i); |
99 | fd6dc90b | Edgar E. Iglesias | } |
100 | 067a3ddc | Paul Brook | nmi[0] = qdev_get_gpio_in(dev, 30); |
101 | 067a3ddc | Paul Brook | nmi[1] = qdev_get_gpio_in(dev, 31); |
102 | 73cfd29f | Edgar E. Iglesias | |
103 | ba494313 | Edgar E. Iglesias | etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10); |
104 | 48318011 | edgar_igl | for (i = 0; i < 10; i++) { |
105 | 5439779e | edgar_igl | /* On ETRAX, odd numbered channels are inputs. */
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106 | 73cfd29f | Edgar E. Iglesias | etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); |
107 | 48318011 | edgar_igl | } |
108 | 48318011 | edgar_igl | |
109 | 4eeed608 | edgar_igl | /* Add the two ethernet blocks. */
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110 | ba494313 | Edgar E. Iglesias | eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1); |
111 | 0ae18cee | aliguori | if (nb_nics > 1) |
112 | ba494313 | Edgar E. Iglesias | eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2); |
113 | 5439779e | edgar_igl | |
114 | 48318011 | edgar_igl | /* The DMA Connector block is missing, hardwire things for now. */
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115 | 4eeed608 | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]); |
116 | 4eeed608 | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1); |
117 | 4eeed608 | edgar_igl | if (eth[1]) { |
118 | 5439779e | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]); |
119 | 5439779e | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1); |
120 | 4eeed608 | edgar_igl | } |
121 | 48318011 | edgar_igl | |
122 | ca87d03b | edgar_igl | /* 2 timers. */
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123 | 3b1fd90e | Edgar E. Iglesias | sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); |
124 | 3b1fd90e | Edgar E. Iglesias | sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); |
125 | 48318011 | edgar_igl | |
126 | 48318011 | edgar_igl | for (i = 0; i < 4; i++) { |
127 | 4b816985 | Edgar E. Iglesias | sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, |
128 | 4b816985 | Edgar E. Iglesias | irq[0x14 + i]);
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129 | 48318011 | edgar_igl | } |
130 | 83fa1010 | ths | |
131 | 5439779e | edgar_igl | if (kernel_filename) {
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132 | f5a5cca3 | edgar_igl | uint64_t entry, high; |
133 | f5a5cca3 | edgar_igl | int kcmdline_len;
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134 | f5a5cca3 | edgar_igl | |
135 | 5439779e | edgar_igl | /* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
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136 | 5439779e | edgar_igl | devboard SDK. */
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137 | 8ab94444 | edgar_igl | kernel_size = load_elf(kernel_filename, -0x80000000LL,
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138 | f5a5cca3 | edgar_igl | &entry, NULL, &high);
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139 | fa1bdde4 | edgar_igl | bootstrap_pc = entry; |
140 | fa1bdde4 | edgar_igl | if (kernel_size < 0) { |
141 | fa1bdde4 | edgar_igl | /* Takes a kimage from the axis devboard SDK. */
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142 | dcac9679 | pbrook | kernel_size = load_image_targphys(kernel_filename, 0x40004000,
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143 | dcac9679 | pbrook | ram_size); |
144 | fa1bdde4 | edgar_igl | bootstrap_pc = 0x40004000;
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145 | fa1bdde4 | edgar_igl | env->regs[9] = 0x40004000 + kernel_size; |
146 | fa1bdde4 | edgar_igl | } |
147 | 8ab94444 | edgar_igl | env->regs[8] = 0x56902387; /* RAM init magic. */ |
148 | f5a5cca3 | edgar_igl | |
149 | f5a5cca3 | edgar_igl | if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
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150 | f5a5cca3 | edgar_igl | if (kcmdline_len > 256) { |
151 | f5a5cca3 | edgar_igl | fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
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152 | f5a5cca3 | edgar_igl | exit(1);
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153 | f5a5cca3 | edgar_igl | } |
154 | f5a5cca3 | edgar_igl | /* Let the kernel know we are modifying the cmdline. */
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155 | f5a5cca3 | edgar_igl | env->regs[10] = 0x87109563; |
156 | d33fd9d1 | Edgar E. Iglesias | env->regs[11] = 0x40000000; |
157 | d33fd9d1 | Edgar E. Iglesias | pstrcpy_targphys(env->regs[11], 256, kernel_cmdline); |
158 | f5a5cca3 | edgar_igl | } |
159 | 83fa1010 | ths | } |
160 | 5439779e | edgar_igl | env->pc = bootstrap_pc; |
161 | 83fa1010 | ths | |
162 | 83fa1010 | ths | printf ("pc =%x\n", env->pc);
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163 | 48318011 | edgar_igl | printf ("ram size =%ld\n", ram_size);
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164 | 83fa1010 | ths | } |
165 | 83fa1010 | ths | |
166 | f80f9ec9 | Anthony Liguori | static QEMUMachine bareetraxfs_machine = {
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167 | 4b32e168 | aliguori | .name = "bareetraxfs",
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168 | 4b32e168 | aliguori | .desc = "Bare ETRAX FS board",
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169 | 4b32e168 | aliguori | .init = bareetraxfs_init, |
170 | 0c257437 | Anthony Liguori | .is_default = 1,
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171 | 83fa1010 | ths | }; |
172 | f80f9ec9 | Anthony Liguori | |
173 | f80f9ec9 | Anthony Liguori | static void bareetraxfs_machine_init(void) |
174 | f80f9ec9 | Anthony Liguori | { |
175 | f80f9ec9 | Anthony Liguori | qemu_register_machine(&bareetraxfs_machine); |
176 | f80f9ec9 | Anthony Liguori | } |
177 | f80f9ec9 | Anthony Liguori | |
178 | f80f9ec9 | Anthony Liguori | machine_init(bareetraxfs_machine_init); |