root / hw / xtensa_lx60.c @ a1bc20df
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1 | 0200db65 | Max Filippov | /*
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2 | 0200db65 | Max Filippov | * Copyright (c) 2011, Max Filippov, Open Source and Linux Lab.
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3 | 0200db65 | Max Filippov | * All rights reserved.
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4 | 0200db65 | Max Filippov | *
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5 | 0200db65 | Max Filippov | * Redistribution and use in source and binary forms, with or without
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6 | 0200db65 | Max Filippov | * modification, are permitted provided that the following conditions are met:
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7 | 0200db65 | Max Filippov | * * Redistributions of source code must retain the above copyright
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8 | 0200db65 | Max Filippov | * notice, this list of conditions and the following disclaimer.
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9 | 0200db65 | Max Filippov | * * Redistributions in binary form must reproduce the above copyright
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10 | 0200db65 | Max Filippov | * notice, this list of conditions and the following disclaimer in the
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11 | 0200db65 | Max Filippov | * documentation and/or other materials provided with the distribution.
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12 | 0200db65 | Max Filippov | * * Neither the name of the Open Source and Linux Lab nor the
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13 | 0200db65 | Max Filippov | * names of its contributors may be used to endorse or promote products
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14 | 0200db65 | Max Filippov | * derived from this software without specific prior written permission.
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15 | 0200db65 | Max Filippov | *
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16 | 0200db65 | Max Filippov | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 | 0200db65 | Max Filippov | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 | 0200db65 | Max Filippov | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 | 0200db65 | Max Filippov | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
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20 | 0200db65 | Max Filippov | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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21 | 0200db65 | Max Filippov | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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22 | 0200db65 | Max Filippov | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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23 | 0200db65 | Max Filippov | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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24 | 0200db65 | Max Filippov | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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25 | 0200db65 | Max Filippov | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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26 | 0200db65 | Max Filippov | */
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27 | 0200db65 | Max Filippov | |
28 | 0200db65 | Max Filippov | #include "sysemu.h" |
29 | 0200db65 | Max Filippov | #include "boards.h" |
30 | 0200db65 | Max Filippov | #include "loader.h" |
31 | 0200db65 | Max Filippov | #include "elf.h" |
32 | 0200db65 | Max Filippov | #include "memory.h" |
33 | 0200db65 | Max Filippov | #include "exec-memory.h" |
34 | 488cb996 | Gerd Hoffmann | #include "serial.h" |
35 | 488cb996 | Gerd Hoffmann | #include "net.h" |
36 | 0200db65 | Max Filippov | #include "sysbus.h" |
37 | 82b25dc8 | Max Filippov | #include "flash.h" |
38 | 8aab031f | Max Filippov | #include "blockdev.h" |
39 | 292627bb | Max Filippov | #include "xtensa_bootparam.h" |
40 | 82b25dc8 | Max Filippov | |
41 | 82b25dc8 | Max Filippov | typedef struct LxBoardDesc { |
42 | 82b25dc8 | Max Filippov | size_t flash_size; |
43 | 82b25dc8 | Max Filippov | size_t flash_sector_size; |
44 | 82b25dc8 | Max Filippov | size_t sram_size; |
45 | 82b25dc8 | Max Filippov | } LxBoardDesc; |
46 | 0200db65 | Max Filippov | |
47 | 0200db65 | Max Filippov | typedef struct Lx60FpgaState { |
48 | 0200db65 | Max Filippov | MemoryRegion iomem; |
49 | 0200db65 | Max Filippov | uint32_t leds; |
50 | 0200db65 | Max Filippov | uint32_t switches; |
51 | 0200db65 | Max Filippov | } Lx60FpgaState; |
52 | 0200db65 | Max Filippov | |
53 | 0200db65 | Max Filippov | static void lx60_fpga_reset(void *opaque) |
54 | 0200db65 | Max Filippov | { |
55 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
56 | 0200db65 | Max Filippov | |
57 | 0200db65 | Max Filippov | s->leds = 0;
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58 | 0200db65 | Max Filippov | s->switches = 0;
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59 | 0200db65 | Max Filippov | } |
60 | 0200db65 | Max Filippov | |
61 | a8170e5e | Avi Kivity | static uint64_t lx60_fpga_read(void *opaque, hwaddr addr, |
62 | 0200db65 | Max Filippov | unsigned size)
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63 | 0200db65 | Max Filippov | { |
64 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
65 | 0200db65 | Max Filippov | |
66 | 0200db65 | Max Filippov | switch (addr) {
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67 | 0200db65 | Max Filippov | case 0x0: /*build date code*/ |
68 | 556ba668 | Max Filippov | return 0x09272011; |
69 | 0200db65 | Max Filippov | |
70 | 0200db65 | Max Filippov | case 0x4: /*processor clock frequency, Hz*/ |
71 | 0200db65 | Max Filippov | return 10000000; |
72 | 0200db65 | Max Filippov | |
73 | 0200db65 | Max Filippov | case 0x8: /*LEDs (off = 0, on = 1)*/ |
74 | 0200db65 | Max Filippov | return s->leds;
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75 | 0200db65 | Max Filippov | |
76 | 0200db65 | Max Filippov | case 0xc: /*DIP switches (off = 0, on = 1)*/ |
77 | 0200db65 | Max Filippov | return s->switches;
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78 | 0200db65 | Max Filippov | } |
79 | 0200db65 | Max Filippov | return 0; |
80 | 0200db65 | Max Filippov | } |
81 | 0200db65 | Max Filippov | |
82 | a8170e5e | Avi Kivity | static void lx60_fpga_write(void *opaque, hwaddr addr, |
83 | 0200db65 | Max Filippov | uint64_t val, unsigned size)
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84 | 0200db65 | Max Filippov | { |
85 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
86 | 0200db65 | Max Filippov | |
87 | 0200db65 | Max Filippov | switch (addr) {
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88 | 0200db65 | Max Filippov | case 0x8: /*LEDs (off = 0, on = 1)*/ |
89 | 0200db65 | Max Filippov | s->leds = val; |
90 | 0200db65 | Max Filippov | break;
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91 | 0200db65 | Max Filippov | |
92 | 0200db65 | Max Filippov | case 0x10: /*board reset*/ |
93 | 0200db65 | Max Filippov | if (val == 0xdead) { |
94 | 0200db65 | Max Filippov | qemu_system_reset_request(); |
95 | 0200db65 | Max Filippov | } |
96 | 0200db65 | Max Filippov | break;
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97 | 0200db65 | Max Filippov | } |
98 | 0200db65 | Max Filippov | } |
99 | 0200db65 | Max Filippov | |
100 | 0200db65 | Max Filippov | static const MemoryRegionOps lx60_fpga_ops = { |
101 | 0200db65 | Max Filippov | .read = lx60_fpga_read, |
102 | 0200db65 | Max Filippov | .write = lx60_fpga_write, |
103 | 0200db65 | Max Filippov | .endianness = DEVICE_NATIVE_ENDIAN, |
104 | 0200db65 | Max Filippov | }; |
105 | 0200db65 | Max Filippov | |
106 | 0200db65 | Max Filippov | static Lx60FpgaState *lx60_fpga_init(MemoryRegion *address_space,
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107 | a8170e5e | Avi Kivity | hwaddr base) |
108 | 0200db65 | Max Filippov | { |
109 | 0200db65 | Max Filippov | Lx60FpgaState *s = g_malloc(sizeof(Lx60FpgaState));
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110 | 0200db65 | Max Filippov | |
111 | 0200db65 | Max Filippov | memory_region_init_io(&s->iomem, &lx60_fpga_ops, s, |
112 | 556ba668 | Max Filippov | "lx60.fpga", 0x10000); |
113 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, base, &s->iomem); |
114 | 0200db65 | Max Filippov | lx60_fpga_reset(s); |
115 | 0200db65 | Max Filippov | qemu_register_reset(lx60_fpga_reset, s); |
116 | 0200db65 | Max Filippov | return s;
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117 | 0200db65 | Max Filippov | } |
118 | 0200db65 | Max Filippov | |
119 | 0200db65 | Max Filippov | static void lx60_net_init(MemoryRegion *address_space, |
120 | a8170e5e | Avi Kivity | hwaddr base, |
121 | a8170e5e | Avi Kivity | hwaddr descriptors, |
122 | a8170e5e | Avi Kivity | hwaddr buffers, |
123 | 0200db65 | Max Filippov | qemu_irq irq, NICInfo *nd) |
124 | 0200db65 | Max Filippov | { |
125 | 0200db65 | Max Filippov | DeviceState *dev; |
126 | 0200db65 | Max Filippov | SysBusDevice *s; |
127 | 0200db65 | Max Filippov | MemoryRegion *ram; |
128 | 0200db65 | Max Filippov | |
129 | 0200db65 | Max Filippov | dev = qdev_create(NULL, "open_eth"); |
130 | 0200db65 | Max Filippov | qdev_set_nic_properties(dev, nd); |
131 | 0200db65 | Max Filippov | qdev_init_nofail(dev); |
132 | 0200db65 | Max Filippov | |
133 | 0200db65 | Max Filippov | s = sysbus_from_qdev(dev); |
134 | 0200db65 | Max Filippov | sysbus_connect_irq(s, 0, irq);
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135 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, base, |
136 | 0200db65 | Max Filippov | sysbus_mmio_get_region(s, 0));
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137 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, descriptors, |
138 | 0200db65 | Max Filippov | sysbus_mmio_get_region(s, 1));
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139 | 0200db65 | Max Filippov | |
140 | 0200db65 | Max Filippov | ram = g_malloc(sizeof(*ram));
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141 | c5705a77 | Avi Kivity | memory_region_init_ram(ram, "open_eth.ram", 16384); |
142 | c5705a77 | Avi Kivity | vmstate_register_ram_global(ram); |
143 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, buffers, ram); |
144 | 0200db65 | Max Filippov | } |
145 | 0200db65 | Max Filippov | |
146 | 0200db65 | Max Filippov | static uint64_t translate_phys_addr(void *env, uint64_t addr) |
147 | 0200db65 | Max Filippov | { |
148 | 0200db65 | Max Filippov | return cpu_get_phys_page_debug(env, addr);
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149 | 0200db65 | Max Filippov | } |
150 | 0200db65 | Max Filippov | |
151 | 1bba0dc9 | Andreas Färber | static void lx60_reset(void *opaque) |
152 | 0200db65 | Max Filippov | { |
153 | eded1267 | Andreas Färber | XtensaCPU *cpu = opaque; |
154 | 1bba0dc9 | Andreas Färber | |
155 | eded1267 | Andreas Färber | cpu_reset(CPU(cpu)); |
156 | 0200db65 | Max Filippov | } |
157 | 0200db65 | Max Filippov | |
158 | d64ed08e | Max Filippov | static void lx_init(const LxBoardDesc *board, QEMUMachineInitArgs *args) |
159 | 0200db65 | Max Filippov | { |
160 | 0200db65 | Max Filippov | #ifdef TARGET_WORDS_BIGENDIAN
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161 | 0200db65 | Max Filippov | int be = 1; |
162 | 0200db65 | Max Filippov | #else
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163 | 0200db65 | Max Filippov | int be = 0; |
164 | 0200db65 | Max Filippov | #endif
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165 | 0200db65 | Max Filippov | MemoryRegion *system_memory = get_system_memory(); |
166 | adbb0f75 | Andreas Färber | XtensaCPU *cpu = NULL;
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167 | 5bfcb36e | Andreas Färber | CPUXtensaState *env = NULL;
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168 | 0200db65 | Max Filippov | MemoryRegion *ram, *rom, *system_io; |
169 | 82b25dc8 | Max Filippov | DriveInfo *dinfo; |
170 | 82b25dc8 | Max Filippov | pflash_t *flash = NULL;
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171 | d64ed08e | Max Filippov | const char *cpu_model = args->cpu_model; |
172 | d64ed08e | Max Filippov | const char *kernel_filename = args->kernel_filename; |
173 | d64ed08e | Max Filippov | const char *kernel_cmdline = args->kernel_cmdline; |
174 | 0200db65 | Max Filippov | int n;
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175 | 0200db65 | Max Filippov | |
176 | 82b25dc8 | Max Filippov | if (!cpu_model) {
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177 | e38077ff | Max Filippov | cpu_model = XTENSA_DEFAULT_CPU_MODEL; |
178 | 82b25dc8 | Max Filippov | } |
179 | 82b25dc8 | Max Filippov | |
180 | 0200db65 | Max Filippov | for (n = 0; n < smp_cpus; n++) { |
181 | adbb0f75 | Andreas Färber | cpu = cpu_xtensa_init(cpu_model); |
182 | adbb0f75 | Andreas Färber | if (cpu == NULL) { |
183 | 0200db65 | Max Filippov | fprintf(stderr, "Unable to find CPU definition\n");
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184 | 0200db65 | Max Filippov | exit(1);
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185 | 0200db65 | Max Filippov | } |
186 | adbb0f75 | Andreas Färber | env = &cpu->env; |
187 | adbb0f75 | Andreas Färber | |
188 | 0200db65 | Max Filippov | env->sregs[PRID] = n; |
189 | eded1267 | Andreas Färber | qemu_register_reset(lx60_reset, cpu); |
190 | 0200db65 | Max Filippov | /* Need MMU initialized prior to ELF loading,
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191 | 0200db65 | Max Filippov | * so that ELF gets loaded into virtual addresses
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192 | 0200db65 | Max Filippov | */
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193 | adbb0f75 | Andreas Färber | cpu_reset(CPU(cpu)); |
194 | 0200db65 | Max Filippov | } |
195 | 0200db65 | Max Filippov | |
196 | 0200db65 | Max Filippov | ram = g_malloc(sizeof(*ram));
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197 | d64ed08e | Max Filippov | memory_region_init_ram(ram, "lx60.dram", args->ram_size);
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198 | c5705a77 | Avi Kivity | vmstate_register_ram_global(ram); |
199 | 0200db65 | Max Filippov | memory_region_add_subregion(system_memory, 0, ram);
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200 | 0200db65 | Max Filippov | |
201 | 0200db65 | Max Filippov | system_io = g_malloc(sizeof(*system_io));
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202 | 556ba668 | Max Filippov | memory_region_init(system_io, "lx60.io", 224 * 1024 * 1024); |
203 | 0200db65 | Max Filippov | memory_region_add_subregion(system_memory, 0xf0000000, system_io);
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204 | 0200db65 | Max Filippov | lx60_fpga_init(system_io, 0x0d020000);
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205 | a005d073 | Stefan Hajnoczi | if (nd_table[0].used) { |
206 | 0200db65 | Max Filippov | lx60_net_init(system_io, 0x0d030000, 0x0d030400, 0x0d800000, |
207 | 0200db65 | Max Filippov | xtensa_get_extint(env, 1), nd_table);
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208 | 0200db65 | Max Filippov | } |
209 | 0200db65 | Max Filippov | |
210 | 0200db65 | Max Filippov | if (!serial_hds[0]) { |
211 | 0200db65 | Max Filippov | serial_hds[0] = qemu_chr_new("serial0", "null", NULL); |
212 | 0200db65 | Max Filippov | } |
213 | 0200db65 | Max Filippov | |
214 | 0200db65 | Max Filippov | serial_mm_init(system_io, 0x0d050020, 2, xtensa_get_extint(env, 0), |
215 | 0200db65 | Max Filippov | 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN); |
216 | 0200db65 | Max Filippov | |
217 | 82b25dc8 | Max Filippov | dinfo = drive_get(IF_PFLASH, 0, 0); |
218 | 82b25dc8 | Max Filippov | if (dinfo) {
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219 | 82b25dc8 | Max Filippov | flash = pflash_cfi01_register(0xf8000000,
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220 | 82b25dc8 | Max Filippov | NULL, "lx60.io.flash", board->flash_size, |
221 | 82b25dc8 | Max Filippov | dinfo->bdrv, board->flash_sector_size, |
222 | 82b25dc8 | Max Filippov | board->flash_size / board->flash_sector_size, |
223 | 82b25dc8 | Max Filippov | 4, 0x0000, 0x0000, 0x0000, 0x0000, be); |
224 | 82b25dc8 | Max Filippov | if (flash == NULL) { |
225 | 82b25dc8 | Max Filippov | fprintf(stderr, "Unable to mount pflash\n");
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226 | 82b25dc8 | Max Filippov | exit(1);
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227 | 82b25dc8 | Max Filippov | } |
228 | 82b25dc8 | Max Filippov | } |
229 | 82b25dc8 | Max Filippov | |
230 | 82b25dc8 | Max Filippov | /* Use presence of kernel file name as 'boot from SRAM' switch. */
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231 | 0200db65 | Max Filippov | if (kernel_filename) {
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232 | 292627bb | Max Filippov | rom = g_malloc(sizeof(*rom));
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233 | c5705a77 | Avi Kivity | memory_region_init_ram(rom, "lx60.sram", board->sram_size);
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234 | c5705a77 | Avi Kivity | vmstate_register_ram_global(rom); |
235 | 292627bb | Max Filippov | memory_region_add_subregion(system_memory, 0xfe000000, rom);
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236 | 292627bb | Max Filippov | |
237 | 292627bb | Max Filippov | /* Put kernel bootparameters to the end of that SRAM */
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238 | 292627bb | Max Filippov | if (kernel_cmdline) {
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239 | 292627bb | Max Filippov | size_t cmdline_size = strlen(kernel_cmdline) + 1;
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240 | 292627bb | Max Filippov | size_t bp_size = sizeof(BpTag[4]) + cmdline_size; |
241 | 292627bb | Max Filippov | uint32_t tagptr = (0xfe000000 + board->sram_size - bp_size) & ~0xff; |
242 | 292627bb | Max Filippov | |
243 | 292627bb | Max Filippov | env->regs[2] = tagptr;
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244 | 292627bb | Max Filippov | |
245 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x7b0b, 0, NULL); |
246 | 292627bb | Max Filippov | if (cmdline_size > 1) { |
247 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x1001,
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248 | 292627bb | Max Filippov | cmdline_size, kernel_cmdline); |
249 | 292627bb | Max Filippov | } |
250 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x7e0b, 0, NULL); |
251 | 292627bb | Max Filippov | } |
252 | 0200db65 | Max Filippov | uint64_t elf_entry; |
253 | 0200db65 | Max Filippov | uint64_t elf_lowaddr; |
254 | 0200db65 | Max Filippov | int success = load_elf(kernel_filename, translate_phys_addr, env,
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255 | 0200db65 | Max Filippov | &elf_entry, &elf_lowaddr, NULL, be, ELF_MACHINE, 0); |
256 | 0200db65 | Max Filippov | if (success > 0) { |
257 | 0200db65 | Max Filippov | env->pc = elf_entry; |
258 | 0200db65 | Max Filippov | } |
259 | 82b25dc8 | Max Filippov | } else {
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260 | 82b25dc8 | Max Filippov | if (flash) {
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261 | 82b25dc8 | Max Filippov | MemoryRegion *flash_mr = pflash_cfi01_get_memory(flash); |
262 | 82b25dc8 | Max Filippov | MemoryRegion *flash_io = g_malloc(sizeof(*flash_io));
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263 | 82b25dc8 | Max Filippov | |
264 | 82b25dc8 | Max Filippov | memory_region_init_alias(flash_io, "lx60.flash",
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265 | 82b25dc8 | Max Filippov | flash_mr, 0, board->flash_size);
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266 | 82b25dc8 | Max Filippov | memory_region_add_subregion(system_memory, 0xfe000000,
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267 | 82b25dc8 | Max Filippov | flash_io); |
268 | 82b25dc8 | Max Filippov | } |
269 | 0200db65 | Max Filippov | } |
270 | 0200db65 | Max Filippov | } |
271 | 0200db65 | Max Filippov | |
272 | 5f072e1f | Eduardo Habkost | static void xtensa_lx60_init(QEMUMachineInitArgs *args) |
273 | 0200db65 | Max Filippov | { |
274 | 82b25dc8 | Max Filippov | static const LxBoardDesc lx60_board = { |
275 | 82b25dc8 | Max Filippov | .flash_size = 0x400000,
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276 | 82b25dc8 | Max Filippov | .flash_sector_size = 0x10000,
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277 | 82b25dc8 | Max Filippov | .sram_size = 0x20000,
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278 | 82b25dc8 | Max Filippov | }; |
279 | d64ed08e | Max Filippov | lx_init(&lx60_board, args); |
280 | 82b25dc8 | Max Filippov | } |
281 | 82b25dc8 | Max Filippov | |
282 | 5f072e1f | Eduardo Habkost | static void xtensa_lx200_init(QEMUMachineInitArgs *args) |
283 | 82b25dc8 | Max Filippov | { |
284 | 82b25dc8 | Max Filippov | static const LxBoardDesc lx200_board = { |
285 | 82b25dc8 | Max Filippov | .flash_size = 0x1000000,
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286 | 82b25dc8 | Max Filippov | .flash_sector_size = 0x20000,
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287 | 82b25dc8 | Max Filippov | .sram_size = 0x2000000,
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288 | 82b25dc8 | Max Filippov | }; |
289 | d64ed08e | Max Filippov | lx_init(&lx200_board, args); |
290 | 0200db65 | Max Filippov | } |
291 | 0200db65 | Max Filippov | |
292 | 0200db65 | Max Filippov | static QEMUMachine xtensa_lx60_machine = {
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293 | 0200db65 | Max Filippov | .name = "lx60",
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294 | e38077ff | Max Filippov | .desc = "lx60 EVB (" XTENSA_DEFAULT_CPU_MODEL ")", |
295 | 0200db65 | Max Filippov | .init = xtensa_lx60_init, |
296 | 0200db65 | Max Filippov | .max_cpus = 4,
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297 | 0200db65 | Max Filippov | }; |
298 | 0200db65 | Max Filippov | |
299 | 82b25dc8 | Max Filippov | static QEMUMachine xtensa_lx200_machine = {
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300 | 82b25dc8 | Max Filippov | .name = "lx200",
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301 | e38077ff | Max Filippov | .desc = "lx200 EVB (" XTENSA_DEFAULT_CPU_MODEL ")", |
302 | 82b25dc8 | Max Filippov | .init = xtensa_lx200_init, |
303 | 82b25dc8 | Max Filippov | .max_cpus = 4,
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304 | 82b25dc8 | Max Filippov | }; |
305 | 82b25dc8 | Max Filippov | |
306 | 82b25dc8 | Max Filippov | static void xtensa_lx_machines_init(void) |
307 | 0200db65 | Max Filippov | { |
308 | 0200db65 | Max Filippov | qemu_register_machine(&xtensa_lx60_machine); |
309 | 82b25dc8 | Max Filippov | qemu_register_machine(&xtensa_lx200_machine); |
310 | 0200db65 | Max Filippov | } |
311 | 0200db65 | Max Filippov | |
312 | 82b25dc8 | Max Filippov | machine_init(xtensa_lx_machines_init); |