root / hw / xtensa_lx60.c @ b072a3c8
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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 | 0200db65 | Max Filippov | #include "pc.h" |
35 | 0200db65 | Max Filippov | #include "sysbus.h" |
36 | 82b25dc8 | Max Filippov | #include "flash.h" |
37 | 292627bb | Max Filippov | #include "xtensa_bootparam.h" |
38 | 82b25dc8 | Max Filippov | |
39 | 82b25dc8 | Max Filippov | typedef struct LxBoardDesc { |
40 | 82b25dc8 | Max Filippov | size_t flash_size; |
41 | 82b25dc8 | Max Filippov | size_t flash_sector_size; |
42 | 82b25dc8 | Max Filippov | size_t sram_size; |
43 | 82b25dc8 | Max Filippov | } LxBoardDesc; |
44 | 0200db65 | Max Filippov | |
45 | 0200db65 | Max Filippov | typedef struct Lx60FpgaState { |
46 | 0200db65 | Max Filippov | MemoryRegion iomem; |
47 | 0200db65 | Max Filippov | uint32_t leds; |
48 | 0200db65 | Max Filippov | uint32_t switches; |
49 | 0200db65 | Max Filippov | } Lx60FpgaState; |
50 | 0200db65 | Max Filippov | |
51 | 0200db65 | Max Filippov | static void lx60_fpga_reset(void *opaque) |
52 | 0200db65 | Max Filippov | { |
53 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
54 | 0200db65 | Max Filippov | |
55 | 0200db65 | Max Filippov | s->leds = 0;
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56 | 0200db65 | Max Filippov | s->switches = 0;
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57 | 0200db65 | Max Filippov | } |
58 | 0200db65 | Max Filippov | |
59 | 0200db65 | Max Filippov | static uint64_t lx60_fpga_read(void *opaque, target_phys_addr_t addr, |
60 | 0200db65 | Max Filippov | unsigned size)
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61 | 0200db65 | Max Filippov | { |
62 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
63 | 0200db65 | Max Filippov | |
64 | 0200db65 | Max Filippov | switch (addr) {
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65 | 0200db65 | Max Filippov | case 0x0: /*build date code*/ |
66 | 556ba668 | Max Filippov | return 0x09272011; |
67 | 0200db65 | Max Filippov | |
68 | 0200db65 | Max Filippov | case 0x4: /*processor clock frequency, Hz*/ |
69 | 0200db65 | Max Filippov | return 10000000; |
70 | 0200db65 | Max Filippov | |
71 | 0200db65 | Max Filippov | case 0x8: /*LEDs (off = 0, on = 1)*/ |
72 | 0200db65 | Max Filippov | return s->leds;
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73 | 0200db65 | Max Filippov | |
74 | 0200db65 | Max Filippov | case 0xc: /*DIP switches (off = 0, on = 1)*/ |
75 | 0200db65 | Max Filippov | return s->switches;
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76 | 0200db65 | Max Filippov | } |
77 | 0200db65 | Max Filippov | return 0; |
78 | 0200db65 | Max Filippov | } |
79 | 0200db65 | Max Filippov | |
80 | 0200db65 | Max Filippov | static void lx60_fpga_write(void *opaque, target_phys_addr_t addr, |
81 | 0200db65 | Max Filippov | uint64_t val, unsigned size)
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82 | 0200db65 | Max Filippov | { |
83 | 0200db65 | Max Filippov | Lx60FpgaState *s = opaque; |
84 | 0200db65 | Max Filippov | |
85 | 0200db65 | Max Filippov | switch (addr) {
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86 | 0200db65 | Max Filippov | case 0x8: /*LEDs (off = 0, on = 1)*/ |
87 | 0200db65 | Max Filippov | s->leds = val; |
88 | 0200db65 | Max Filippov | break;
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89 | 0200db65 | Max Filippov | |
90 | 0200db65 | Max Filippov | case 0x10: /*board reset*/ |
91 | 0200db65 | Max Filippov | if (val == 0xdead) { |
92 | 0200db65 | Max Filippov | qemu_system_reset_request(); |
93 | 0200db65 | Max Filippov | } |
94 | 0200db65 | Max Filippov | break;
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95 | 0200db65 | Max Filippov | } |
96 | 0200db65 | Max Filippov | } |
97 | 0200db65 | Max Filippov | |
98 | 0200db65 | Max Filippov | static const MemoryRegionOps lx60_fpga_ops = { |
99 | 0200db65 | Max Filippov | .read = lx60_fpga_read, |
100 | 0200db65 | Max Filippov | .write = lx60_fpga_write, |
101 | 0200db65 | Max Filippov | .endianness = DEVICE_NATIVE_ENDIAN, |
102 | 0200db65 | Max Filippov | }; |
103 | 0200db65 | Max Filippov | |
104 | 0200db65 | Max Filippov | static Lx60FpgaState *lx60_fpga_init(MemoryRegion *address_space,
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105 | 0200db65 | Max Filippov | target_phys_addr_t base) |
106 | 0200db65 | Max Filippov | { |
107 | 0200db65 | Max Filippov | Lx60FpgaState *s = g_malloc(sizeof(Lx60FpgaState));
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108 | 0200db65 | Max Filippov | |
109 | 0200db65 | Max Filippov | memory_region_init_io(&s->iomem, &lx60_fpga_ops, s, |
110 | 556ba668 | Max Filippov | "lx60.fpga", 0x10000); |
111 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, base, &s->iomem); |
112 | 0200db65 | Max Filippov | lx60_fpga_reset(s); |
113 | 0200db65 | Max Filippov | qemu_register_reset(lx60_fpga_reset, s); |
114 | 0200db65 | Max Filippov | return s;
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115 | 0200db65 | Max Filippov | } |
116 | 0200db65 | Max Filippov | |
117 | 0200db65 | Max Filippov | static void lx60_net_init(MemoryRegion *address_space, |
118 | 0200db65 | Max Filippov | target_phys_addr_t base, |
119 | 0200db65 | Max Filippov | target_phys_addr_t descriptors, |
120 | 0200db65 | Max Filippov | target_phys_addr_t buffers, |
121 | 0200db65 | Max Filippov | qemu_irq irq, NICInfo *nd) |
122 | 0200db65 | Max Filippov | { |
123 | 0200db65 | Max Filippov | DeviceState *dev; |
124 | 0200db65 | Max Filippov | SysBusDevice *s; |
125 | 0200db65 | Max Filippov | MemoryRegion *ram; |
126 | 0200db65 | Max Filippov | |
127 | 0200db65 | Max Filippov | dev = qdev_create(NULL, "open_eth"); |
128 | 0200db65 | Max Filippov | qdev_set_nic_properties(dev, nd); |
129 | 0200db65 | Max Filippov | qdev_init_nofail(dev); |
130 | 0200db65 | Max Filippov | |
131 | 0200db65 | Max Filippov | s = sysbus_from_qdev(dev); |
132 | 0200db65 | Max Filippov | sysbus_connect_irq(s, 0, irq);
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133 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, base, |
134 | 0200db65 | Max Filippov | sysbus_mmio_get_region(s, 0));
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135 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, descriptors, |
136 | 0200db65 | Max Filippov | sysbus_mmio_get_region(s, 1));
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137 | 0200db65 | Max Filippov | |
138 | 0200db65 | Max Filippov | ram = g_malloc(sizeof(*ram));
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139 | c5705a77 | Avi Kivity | memory_region_init_ram(ram, "open_eth.ram", 16384); |
140 | c5705a77 | Avi Kivity | vmstate_register_ram_global(ram); |
141 | 0200db65 | Max Filippov | memory_region_add_subregion(address_space, buffers, ram); |
142 | 0200db65 | Max Filippov | } |
143 | 0200db65 | Max Filippov | |
144 | 0200db65 | Max Filippov | static uint64_t translate_phys_addr(void *env, uint64_t addr) |
145 | 0200db65 | Max Filippov | { |
146 | 0200db65 | Max Filippov | return cpu_get_phys_page_debug(env, addr);
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147 | 0200db65 | Max Filippov | } |
148 | 0200db65 | Max Filippov | |
149 | 0200db65 | Max Filippov | static void lx60_reset(void *env) |
150 | 0200db65 | Max Filippov | { |
151 | 0200db65 | Max Filippov | cpu_reset(env); |
152 | 0200db65 | Max Filippov | } |
153 | 0200db65 | Max Filippov | |
154 | 82b25dc8 | Max Filippov | static void lx_init(const LxBoardDesc *board, |
155 | 82b25dc8 | Max Filippov | ram_addr_t ram_size, const char *boot_device, |
156 | 0200db65 | Max Filippov | const char *kernel_filename, const char *kernel_cmdline, |
157 | 0200db65 | Max Filippov | const char *initrd_filename, const char *cpu_model) |
158 | 0200db65 | Max Filippov | { |
159 | 0200db65 | Max Filippov | #ifdef TARGET_WORDS_BIGENDIAN
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160 | 0200db65 | Max Filippov | int be = 1; |
161 | 0200db65 | Max Filippov | #else
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162 | 0200db65 | Max Filippov | int be = 0; |
163 | 0200db65 | Max Filippov | #endif
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164 | 0200db65 | Max Filippov | MemoryRegion *system_memory = get_system_memory(); |
165 | 0200db65 | Max Filippov | CPUState *env = NULL;
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166 | 0200db65 | Max Filippov | MemoryRegion *ram, *rom, *system_io; |
167 | 82b25dc8 | Max Filippov | DriveInfo *dinfo; |
168 | 82b25dc8 | Max Filippov | pflash_t *flash = NULL;
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169 | 0200db65 | Max Filippov | int n;
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170 | 0200db65 | Max Filippov | |
171 | 82b25dc8 | Max Filippov | if (!cpu_model) {
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172 | 82b25dc8 | Max Filippov | cpu_model = "dc232b";
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173 | 82b25dc8 | Max Filippov | } |
174 | 82b25dc8 | Max Filippov | |
175 | 0200db65 | Max Filippov | for (n = 0; n < smp_cpus; n++) { |
176 | 0200db65 | Max Filippov | env = cpu_init(cpu_model); |
177 | 0200db65 | Max Filippov | if (!env) {
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178 | 0200db65 | Max Filippov | fprintf(stderr, "Unable to find CPU definition\n");
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179 | 0200db65 | Max Filippov | exit(1);
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180 | 0200db65 | Max Filippov | } |
181 | 0200db65 | Max Filippov | env->sregs[PRID] = n; |
182 | 0200db65 | Max Filippov | qemu_register_reset(lx60_reset, env); |
183 | 0200db65 | Max Filippov | /* Need MMU initialized prior to ELF loading,
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184 | 0200db65 | Max Filippov | * so that ELF gets loaded into virtual addresses
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185 | 0200db65 | Max Filippov | */
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186 | 0200db65 | Max Filippov | cpu_reset(env); |
187 | 0200db65 | Max Filippov | } |
188 | 0200db65 | Max Filippov | |
189 | 0200db65 | Max Filippov | ram = g_malloc(sizeof(*ram));
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190 | c5705a77 | Avi Kivity | memory_region_init_ram(ram, "lx60.dram", ram_size);
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191 | c5705a77 | Avi Kivity | vmstate_register_ram_global(ram); |
192 | 0200db65 | Max Filippov | memory_region_add_subregion(system_memory, 0, ram);
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193 | 0200db65 | Max Filippov | |
194 | 0200db65 | Max Filippov | system_io = g_malloc(sizeof(*system_io));
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195 | 556ba668 | Max Filippov | memory_region_init(system_io, "lx60.io", 224 * 1024 * 1024); |
196 | 0200db65 | Max Filippov | memory_region_add_subregion(system_memory, 0xf0000000, system_io);
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197 | 0200db65 | Max Filippov | lx60_fpga_init(system_io, 0x0d020000);
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198 | 0200db65 | Max Filippov | if (nd_table[0].vlan) { |
199 | 0200db65 | Max Filippov | lx60_net_init(system_io, 0x0d030000, 0x0d030400, 0x0d800000, |
200 | 0200db65 | Max Filippov | xtensa_get_extint(env, 1), nd_table);
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201 | 0200db65 | Max Filippov | } |
202 | 0200db65 | Max Filippov | |
203 | 0200db65 | Max Filippov | if (!serial_hds[0]) { |
204 | 0200db65 | Max Filippov | serial_hds[0] = qemu_chr_new("serial0", "null", NULL); |
205 | 0200db65 | Max Filippov | } |
206 | 0200db65 | Max Filippov | |
207 | 0200db65 | Max Filippov | serial_mm_init(system_io, 0x0d050020, 2, xtensa_get_extint(env, 0), |
208 | 0200db65 | Max Filippov | 115200, serial_hds[0], DEVICE_NATIVE_ENDIAN); |
209 | 0200db65 | Max Filippov | |
210 | 82b25dc8 | Max Filippov | dinfo = drive_get(IF_PFLASH, 0, 0); |
211 | 82b25dc8 | Max Filippov | if (dinfo) {
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212 | 82b25dc8 | Max Filippov | flash = pflash_cfi01_register(0xf8000000,
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213 | 82b25dc8 | Max Filippov | NULL, "lx60.io.flash", board->flash_size, |
214 | 82b25dc8 | Max Filippov | dinfo->bdrv, board->flash_sector_size, |
215 | 82b25dc8 | Max Filippov | board->flash_size / board->flash_sector_size, |
216 | 82b25dc8 | Max Filippov | 4, 0x0000, 0x0000, 0x0000, 0x0000, be); |
217 | 82b25dc8 | Max Filippov | if (flash == NULL) { |
218 | 82b25dc8 | Max Filippov | fprintf(stderr, "Unable to mount pflash\n");
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219 | 82b25dc8 | Max Filippov | exit(1);
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220 | 82b25dc8 | Max Filippov | } |
221 | 82b25dc8 | Max Filippov | } |
222 | 82b25dc8 | Max Filippov | |
223 | 82b25dc8 | Max Filippov | /* Use presence of kernel file name as 'boot from SRAM' switch. */
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224 | 0200db65 | Max Filippov | if (kernel_filename) {
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225 | 292627bb | Max Filippov | rom = g_malloc(sizeof(*rom));
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226 | c5705a77 | Avi Kivity | memory_region_init_ram(rom, "lx60.sram", board->sram_size);
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227 | c5705a77 | Avi Kivity | vmstate_register_ram_global(rom); |
228 | 292627bb | Max Filippov | memory_region_add_subregion(system_memory, 0xfe000000, rom);
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229 | 292627bb | Max Filippov | |
230 | 292627bb | Max Filippov | /* Put kernel bootparameters to the end of that SRAM */
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231 | 292627bb | Max Filippov | if (kernel_cmdline) {
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232 | 292627bb | Max Filippov | size_t cmdline_size = strlen(kernel_cmdline) + 1;
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233 | 292627bb | Max Filippov | size_t bp_size = sizeof(BpTag[4]) + cmdline_size; |
234 | 292627bb | Max Filippov | uint32_t tagptr = (0xfe000000 + board->sram_size - bp_size) & ~0xff; |
235 | 292627bb | Max Filippov | |
236 | 292627bb | Max Filippov | env->regs[2] = tagptr;
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237 | 292627bb | Max Filippov | |
238 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x7b0b, 0, NULL); |
239 | 292627bb | Max Filippov | if (cmdline_size > 1) { |
240 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x1001,
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241 | 292627bb | Max Filippov | cmdline_size, kernel_cmdline); |
242 | 292627bb | Max Filippov | } |
243 | 292627bb | Max Filippov | tagptr = put_tag(tagptr, 0x7e0b, 0, NULL); |
244 | 292627bb | Max Filippov | } |
245 | 0200db65 | Max Filippov | uint64_t elf_entry; |
246 | 0200db65 | Max Filippov | uint64_t elf_lowaddr; |
247 | 0200db65 | Max Filippov | int success = load_elf(kernel_filename, translate_phys_addr, env,
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248 | 0200db65 | Max Filippov | &elf_entry, &elf_lowaddr, NULL, be, ELF_MACHINE, 0); |
249 | 0200db65 | Max Filippov | if (success > 0) { |
250 | 0200db65 | Max Filippov | env->pc = elf_entry; |
251 | 0200db65 | Max Filippov | } |
252 | 82b25dc8 | Max Filippov | } else {
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253 | 82b25dc8 | Max Filippov | if (flash) {
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254 | 82b25dc8 | Max Filippov | MemoryRegion *flash_mr = pflash_cfi01_get_memory(flash); |
255 | 82b25dc8 | Max Filippov | MemoryRegion *flash_io = g_malloc(sizeof(*flash_io));
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256 | 82b25dc8 | Max Filippov | |
257 | 82b25dc8 | Max Filippov | memory_region_init_alias(flash_io, "lx60.flash",
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258 | 82b25dc8 | Max Filippov | flash_mr, 0, board->flash_size);
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259 | 82b25dc8 | Max Filippov | memory_region_add_subregion(system_memory, 0xfe000000,
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260 | 82b25dc8 | Max Filippov | flash_io); |
261 | 82b25dc8 | Max Filippov | } |
262 | 0200db65 | Max Filippov | } |
263 | 0200db65 | Max Filippov | } |
264 | 0200db65 | Max Filippov | |
265 | 0200db65 | Max Filippov | static void xtensa_lx60_init(ram_addr_t ram_size, |
266 | 0200db65 | Max Filippov | const char *boot_device, |
267 | 0200db65 | Max Filippov | const char *kernel_filename, const char *kernel_cmdline, |
268 | 0200db65 | Max Filippov | const char *initrd_filename, const char *cpu_model) |
269 | 0200db65 | Max Filippov | { |
270 | 82b25dc8 | Max Filippov | static const LxBoardDesc lx60_board = { |
271 | 82b25dc8 | Max Filippov | .flash_size = 0x400000,
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272 | 82b25dc8 | Max Filippov | .flash_sector_size = 0x10000,
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273 | 82b25dc8 | Max Filippov | .sram_size = 0x20000,
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274 | 82b25dc8 | Max Filippov | }; |
275 | 82b25dc8 | Max Filippov | lx_init(&lx60_board, ram_size, boot_device, |
276 | 82b25dc8 | Max Filippov | kernel_filename, kernel_cmdline, |
277 | 82b25dc8 | Max Filippov | initrd_filename, cpu_model); |
278 | 82b25dc8 | Max Filippov | } |
279 | 82b25dc8 | Max Filippov | |
280 | 82b25dc8 | Max Filippov | static void xtensa_lx200_init(ram_addr_t ram_size, |
281 | 82b25dc8 | Max Filippov | const char *boot_device, |
282 | 82b25dc8 | Max Filippov | const char *kernel_filename, const char *kernel_cmdline, |
283 | 82b25dc8 | Max Filippov | const char *initrd_filename, const char *cpu_model) |
284 | 82b25dc8 | Max Filippov | { |
285 | 82b25dc8 | Max Filippov | static const LxBoardDesc lx200_board = { |
286 | 82b25dc8 | Max Filippov | .flash_size = 0x1000000,
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287 | 82b25dc8 | Max Filippov | .flash_sector_size = 0x20000,
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288 | 82b25dc8 | Max Filippov | .sram_size = 0x2000000,
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289 | 82b25dc8 | Max Filippov | }; |
290 | 82b25dc8 | Max Filippov | lx_init(&lx200_board, ram_size, boot_device, |
291 | 82b25dc8 | Max Filippov | kernel_filename, kernel_cmdline, |
292 | 0200db65 | Max Filippov | initrd_filename, cpu_model); |
293 | 0200db65 | Max Filippov | } |
294 | 0200db65 | Max Filippov | |
295 | 0200db65 | Max Filippov | static QEMUMachine xtensa_lx60_machine = {
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296 | 0200db65 | Max Filippov | .name = "lx60",
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297 | 0200db65 | Max Filippov | .desc = "lx60 EVB (dc232b)",
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298 | 0200db65 | Max Filippov | .init = xtensa_lx60_init, |
299 | 0200db65 | Max Filippov | .max_cpus = 4,
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300 | 0200db65 | Max Filippov | }; |
301 | 0200db65 | Max Filippov | |
302 | 82b25dc8 | Max Filippov | static QEMUMachine xtensa_lx200_machine = {
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303 | 82b25dc8 | Max Filippov | .name = "lx200",
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304 | 82b25dc8 | Max Filippov | .desc = "lx200 EVB (dc232b)",
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305 | 82b25dc8 | Max Filippov | .init = xtensa_lx200_init, |
306 | 82b25dc8 | Max Filippov | .max_cpus = 4,
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307 | 82b25dc8 | Max Filippov | }; |
308 | 82b25dc8 | Max Filippov | |
309 | 82b25dc8 | Max Filippov | static void xtensa_lx_machines_init(void) |
310 | 0200db65 | Max Filippov | { |
311 | 0200db65 | Max Filippov | qemu_register_machine(&xtensa_lx60_machine); |
312 | 82b25dc8 | Max Filippov | qemu_register_machine(&xtensa_lx200_machine); |
313 | 0200db65 | Max Filippov | } |
314 | 0200db65 | Max Filippov | |
315 | 82b25dc8 | Max Filippov | machine_init(xtensa_lx_machines_init); |