root / hw / etraxfs.c @ 5340c8a0
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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 | ca20cf32 | Blue Swirl | #include "loader.h" |
32 | ca20cf32 | Blue Swirl | #include "elf.h" |
33 | 77d4f95e | Edgar E. Iglesias | #include "cris-boot.h" |
34 | 2446333c | Blue Swirl | #include "blockdev.h" |
35 | b01cde7b | edgar_igl | |
36 | b01cde7b | edgar_igl | #define FLASH_SIZE 0x2000000 |
37 | b01cde7b | edgar_igl | #define INTMEM_SIZE (128 * 1024) |
38 | 83fa1010 | ths | |
39 | 77d4f95e | Edgar E. Iglesias | static struct cris_load_info li; |
40 | 5439779e | edgar_igl | |
41 | 77d4f95e | Edgar E. Iglesias | static void flash_cpu_reset(void *opaque) |
42 | 5439779e | edgar_igl | { |
43 | 5439779e | edgar_igl | CPUState *env = opaque; |
44 | 5439779e | edgar_igl | cpu_reset(env); |
45 | 409dbce5 | Aurelien Jarno | } |
46 | 409dbce5 | Aurelien Jarno | |
47 | 83fa1010 | ths | static
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48 | c227f099 | Anthony Liguori | void bareetraxfs_init (ram_addr_t ram_size,
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49 | 3023f332 | aliguori | const char *boot_device, |
50 | 83fa1010 | ths | const char *kernel_filename, const char *kernel_cmdline, |
51 | 83fa1010 | ths | const char *initrd_filename, const char *cpu_model) |
52 | 83fa1010 | ths | { |
53 | fd6dc90b | Edgar E. Iglesias | DeviceState *dev; |
54 | 562183de | Edgar E. Iglesias | SysBusDevice *s; |
55 | 83fa1010 | ths | CPUState *env; |
56 | fd6dc90b | Edgar E. Iglesias | qemu_irq irq[30], nmi[2], *cpu_irq; |
57 | fa1bdde4 | edgar_igl | void *etraxfs_dmac;
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58 | 4eeed608 | edgar_igl | struct etraxfs_dma_client *eth[2] = {NULL, NULL}; |
59 | 751c6a17 | Gerd Hoffmann | DriveInfo *dinfo; |
60 | 48318011 | edgar_igl | int i;
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61 | c227f099 | Anthony Liguori | ram_addr_t phys_ram; |
62 | c227f099 | Anthony Liguori | ram_addr_t phys_flash; |
63 | c227f099 | Anthony Liguori | ram_addr_t phys_intmem; |
64 | 83fa1010 | ths | |
65 | 83fa1010 | ths | /* init CPUs */
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66 | 83fa1010 | ths | if (cpu_model == NULL) { |
67 | 83fa1010 | ths | cpu_model = "crisv32";
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68 | 83fa1010 | ths | } |
69 | aaed909a | bellard | env = cpu_init(cpu_model); |
70 | 83fa1010 | ths | |
71 | 83fa1010 | ths | /* allocate RAM */
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72 | 1724f049 | Alex Williamson | phys_ram = qemu_ram_alloc(NULL, "etraxfs.ram", ram_size); |
73 | e62b5b13 | edgar_igl | cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
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74 | e62b5b13 | edgar_igl | |
75 | b01cde7b | edgar_igl | /* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
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76 | 980f8a0b | edgar_igl | internal memory. */
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77 | 1724f049 | Alex Williamson | phys_intmem = qemu_ram_alloc(NULL, "etraxfs.chipram", INTMEM_SIZE); |
78 | 5439779e | edgar_igl | cpu_register_physical_memory(0x38000000, INTMEM_SIZE,
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79 | 5439779e | edgar_igl | phys_intmem | IO_MEM_RAM); |
80 | 5439779e | edgar_igl | |
81 | e62b5b13 | edgar_igl | |
82 | 1724f049 | Alex Williamson | phys_flash = qemu_ram_alloc(NULL, "etraxfs.flash", FLASH_SIZE); |
83 | 751c6a17 | Gerd Hoffmann | dinfo = drive_get(IF_PFLASH, 0, 0); |
84 | 5439779e | edgar_igl | pflash_cfi02_register(0x0, phys_flash,
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85 | 751c6a17 | Gerd Hoffmann | dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
86 | 5439779e | edgar_igl | FLASH_SIZE >> 16,
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87 | 5439779e | edgar_igl | 1, 2, 0x0000, 0x0000, 0x0000, 0x0000, |
88 | 5f9fc5ad | Blue Swirl | 0x555, 0x2aa, 0); |
89 | fd6dc90b | Edgar E. Iglesias | cpu_irq = cris_pic_init_cpu(env); |
90 | 562183de | Edgar E. Iglesias | dev = qdev_create(NULL, "etraxfs,pic"); |
91 | fd6dc90b | Edgar E. Iglesias | /* FIXME: Is there a proper way to signal vectors to the CPU core? */
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92 | ee6847d1 | Gerd Hoffmann | qdev_prop_set_ptr(dev, "interrupt_vector", &env->interrupt_vector);
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93 | e23a1b33 | Markus Armbruster | qdev_init_nofail(dev); |
94 | 562183de | Edgar E. Iglesias | s = sysbus_from_qdev(dev); |
95 | 562183de | Edgar E. Iglesias | sysbus_mmio_map(s, 0, 0x3001c000); |
96 | 562183de | Edgar E. Iglesias | sysbus_connect_irq(s, 0, cpu_irq[0]); |
97 | 562183de | Edgar E. Iglesias | sysbus_connect_irq(s, 1, cpu_irq[1]); |
98 | fd6dc90b | Edgar E. Iglesias | for (i = 0; i < 30; i++) { |
99 | 067a3ddc | Paul Brook | irq[i] = qdev_get_gpio_in(dev, i); |
100 | fd6dc90b | Edgar E. Iglesias | } |
101 | 067a3ddc | Paul Brook | nmi[0] = qdev_get_gpio_in(dev, 30); |
102 | 067a3ddc | Paul Brook | nmi[1] = qdev_get_gpio_in(dev, 31); |
103 | 73cfd29f | Edgar E. Iglesias | |
104 | ba494313 | Edgar E. Iglesias | etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10); |
105 | 48318011 | edgar_igl | for (i = 0; i < 10; i++) { |
106 | 5439779e | edgar_igl | /* On ETRAX, odd numbered channels are inputs. */
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107 | 73cfd29f | Edgar E. Iglesias | etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1); |
108 | 48318011 | edgar_igl | } |
109 | 48318011 | edgar_igl | |
110 | 4eeed608 | edgar_igl | /* Add the two ethernet blocks. */
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111 | ba494313 | Edgar E. Iglesias | eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1); |
112 | 0ae18cee | aliguori | if (nb_nics > 1) |
113 | ba494313 | Edgar E. Iglesias | eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2); |
114 | 5439779e | edgar_igl | |
115 | 48318011 | edgar_igl | /* The DMA Connector block is missing, hardwire things for now. */
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116 | 4eeed608 | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]); |
117 | 4eeed608 | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1); |
118 | 4eeed608 | edgar_igl | if (eth[1]) { |
119 | 5439779e | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]); |
120 | 5439779e | edgar_igl | etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1); |
121 | 4eeed608 | edgar_igl | } |
122 | 48318011 | edgar_igl | |
123 | ca87d03b | edgar_igl | /* 2 timers. */
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124 | 3b1fd90e | Edgar E. Iglesias | sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL); |
125 | 3b1fd90e | Edgar E. Iglesias | sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL); |
126 | 48318011 | edgar_igl | |
127 | 48318011 | edgar_igl | for (i = 0; i < 4; i++) { |
128 | 4b816985 | Edgar E. Iglesias | sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000, |
129 | 4b816985 | Edgar E. Iglesias | irq[0x14 + i]);
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130 | 48318011 | edgar_igl | } |
131 | 83fa1010 | ths | |
132 | 5439779e | edgar_igl | if (kernel_filename) {
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133 | 77d4f95e | Edgar E. Iglesias | li.image_filename = kernel_filename; |
134 | 77d4f95e | Edgar E. Iglesias | li.cmdline = kernel_cmdline; |
135 | 77d4f95e | Edgar E. Iglesias | cris_load_image(env, &li); |
136 | 77d4f95e | Edgar E. Iglesias | } else {
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137 | 77d4f95e | Edgar E. Iglesias | if (!dinfo) {
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138 | 77d4f95e | Edgar E. Iglesias | fprintf(stderr, |
139 | 77d4f95e | Edgar E. Iglesias | "Provide a kernel image or a flash image to boot from.\n");
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140 | 77d4f95e | Edgar E. Iglesias | exit(1);
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141 | fa1bdde4 | edgar_igl | } |
142 | 83fa1010 | ths | |
143 | 77d4f95e | Edgar E. Iglesias | /* Nothing more to do for flash images, those boot from addr 0. */
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144 | 77d4f95e | Edgar E. Iglesias | qemu_register_reset(flash_cpu_reset, env); |
145 | 77d4f95e | Edgar E. Iglesias | } |
146 | 83fa1010 | ths | } |
147 | 83fa1010 | ths | |
148 | f80f9ec9 | Anthony Liguori | static QEMUMachine bareetraxfs_machine = {
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149 | 4b32e168 | aliguori | .name = "bareetraxfs",
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150 | 4b32e168 | aliguori | .desc = "Bare ETRAX FS board",
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151 | 4b32e168 | aliguori | .init = bareetraxfs_init, |
152 | 0c257437 | Anthony Liguori | .is_default = 1,
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153 | 83fa1010 | ths | }; |
154 | f80f9ec9 | Anthony Liguori | |
155 | f80f9ec9 | Anthony Liguori | static void bareetraxfs_machine_init(void) |
156 | f80f9ec9 | Anthony Liguori | { |
157 | f80f9ec9 | Anthony Liguori | qemu_register_machine(&bareetraxfs_machine); |
158 | f80f9ec9 | Anthony Liguori | } |
159 | f80f9ec9 | Anthony Liguori | |
160 | f80f9ec9 | Anthony Liguori | machine_init(bareetraxfs_machine_init); |