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d821732a MW |
1 | /* |
2 | * QEMU models for LatticeMico32 uclinux and evr32 boards. | |
3 | * | |
4 | * Copyright (c) 2010 Michael Walle <[email protected]> | |
5 | * | |
6 | * This library is free software; you can redistribute it and/or | |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License as published by the Free Software Foundation; either | |
9 | * version 2 of the License, or (at your option) any later version. | |
10 | * | |
11 | * This library is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * Lesser General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU Lesser General Public | |
17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "sysbus.h" | |
21 | #include "hw.h" | |
22 | #include "net.h" | |
23 | #include "flash.h" | |
d821732a MW |
24 | #include "devices.h" |
25 | #include "boards.h" | |
26 | #include "loader.h" | |
27 | #include "blockdev.h" | |
28 | #include "elf.h" | |
29 | #include "lm32_hwsetup.h" | |
30 | #include "lm32.h" | |
88fa8031 | 31 | #include "exec-memory.h" |
d821732a MW |
32 | |
33 | typedef struct { | |
34 | CPUState *env; | |
35 | target_phys_addr_t bootstrap_pc; | |
36 | target_phys_addr_t flash_base; | |
37 | target_phys_addr_t hwsetup_base; | |
38 | target_phys_addr_t initrd_base; | |
39 | size_t initrd_size; | |
40 | target_phys_addr_t cmdline_base; | |
41 | } ResetInfo; | |
42 | ||
43 | static void cpu_irq_handler(void *opaque, int irq, int level) | |
44 | { | |
45 | CPUState *env = opaque; | |
46 | ||
47 | if (level) { | |
48 | cpu_interrupt(env, CPU_INTERRUPT_HARD); | |
49 | } else { | |
50 | cpu_reset_interrupt(env, CPU_INTERRUPT_HARD); | |
51 | } | |
52 | } | |
53 | ||
54 | static void main_cpu_reset(void *opaque) | |
55 | { | |
56 | ResetInfo *reset_info = opaque; | |
57 | CPUState *env = reset_info->env; | |
58 | ||
59 | cpu_reset(env); | |
60 | ||
61 | /* init defaults */ | |
62 | env->pc = (uint32_t)reset_info->bootstrap_pc; | |
63 | env->regs[R_R1] = (uint32_t)reset_info->hwsetup_base; | |
64 | env->regs[R_R2] = (uint32_t)reset_info->cmdline_base; | |
65 | env->regs[R_R3] = (uint32_t)reset_info->initrd_base; | |
66 | env->regs[R_R4] = (uint32_t)(reset_info->initrd_base + | |
67 | reset_info->initrd_size); | |
68 | env->eba = reset_info->flash_base; | |
69 | env->deba = reset_info->flash_base; | |
70 | } | |
71 | ||
72 | static void lm32_evr_init(ram_addr_t ram_size_not_used, | |
73 | const char *boot_device, | |
74 | const char *kernel_filename, | |
75 | const char *kernel_cmdline, | |
76 | const char *initrd_filename, const char *cpu_model) | |
77 | { | |
78 | CPUState *env; | |
79 | DriveInfo *dinfo; | |
88fa8031 AK |
80 | MemoryRegion *address_space_mem = get_system_memory(); |
81 | MemoryRegion *phys_ram = g_new(MemoryRegion, 1); | |
d821732a MW |
82 | qemu_irq *cpu_irq, irq[32]; |
83 | ResetInfo *reset_info; | |
84 | int i; | |
85 | ||
86 | /* memory map */ | |
87 | target_phys_addr_t flash_base = 0x04000000; | |
88 | size_t flash_sector_size = 256 * 1024; | |
89 | size_t flash_size = 32 * 1024 * 1024; | |
90 | target_phys_addr_t ram_base = 0x08000000; | |
91 | size_t ram_size = 64 * 1024 * 1024; | |
92 | target_phys_addr_t timer0_base = 0x80002000; | |
93 | target_phys_addr_t uart0_base = 0x80006000; | |
94 | target_phys_addr_t timer1_base = 0x8000a000; | |
95 | int uart0_irq = 0; | |
96 | int timer0_irq = 1; | |
97 | int timer1_irq = 3; | |
98 | ||
7267c094 | 99 | reset_info = g_malloc0(sizeof(ResetInfo)); |
d821732a MW |
100 | |
101 | if (cpu_model == NULL) { | |
102 | cpu_model = "lm32-full"; | |
103 | } | |
104 | env = cpu_init(cpu_model); | |
105 | reset_info->env = env; | |
106 | ||
107 | reset_info->flash_base = flash_base; | |
108 | ||
c5705a77 AK |
109 | memory_region_init_ram(phys_ram, "lm32_evr.sdram", ram_size); |
110 | vmstate_register_ram_global(phys_ram); | |
88fa8031 | 111 | memory_region_add_subregion(address_space_mem, ram_base, phys_ram); |
d821732a | 112 | |
d821732a MW |
113 | dinfo = drive_get(IF_PFLASH, 0, 0); |
114 | /* Spansion S29NS128P */ | |
cfe5f011 | 115 | pflash_cfi02_register(flash_base, NULL, "lm32_evr.flash", flash_size, |
d821732a MW |
116 | dinfo ? dinfo->bdrv : NULL, flash_sector_size, |
117 | flash_size / flash_sector_size, 1, 2, | |
01e0451a | 118 | 0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1); |
d821732a MW |
119 | |
120 | /* create irq lines */ | |
121 | cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1); | |
122 | env->pic_state = lm32_pic_init(*cpu_irq); | |
123 | for (i = 0; i < 32; i++) { | |
124 | irq[i] = qdev_get_gpio_in(env->pic_state, i); | |
125 | } | |
126 | ||
127 | sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]); | |
128 | sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]); | |
129 | sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]); | |
130 | ||
131 | /* make sure juart isn't the first chardev */ | |
132 | env->juart_state = lm32_juart_init(); | |
133 | ||
134 | reset_info->bootstrap_pc = flash_base; | |
135 | ||
136 | if (kernel_filename) { | |
137 | uint64_t entry; | |
138 | int kernel_size; | |
139 | ||
140 | kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL, | |
141 | 1, ELF_MACHINE, 0); | |
142 | reset_info->bootstrap_pc = entry; | |
143 | ||
144 | if (kernel_size < 0) { | |
145 | kernel_size = load_image_targphys(kernel_filename, ram_base, | |
146 | ram_size); | |
147 | reset_info->bootstrap_pc = ram_base; | |
148 | } | |
149 | ||
150 | if (kernel_size < 0) { | |
151 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
152 | kernel_filename); | |
153 | exit(1); | |
154 | } | |
155 | } | |
156 | ||
157 | qemu_register_reset(main_cpu_reset, reset_info); | |
158 | } | |
159 | ||
160 | static void lm32_uclinux_init(ram_addr_t ram_size_not_used, | |
161 | const char *boot_device, | |
162 | const char *kernel_filename, | |
163 | const char *kernel_cmdline, | |
164 | const char *initrd_filename, const char *cpu_model) | |
165 | { | |
166 | CPUState *env; | |
167 | DriveInfo *dinfo; | |
88fa8031 AK |
168 | MemoryRegion *address_space_mem = get_system_memory(); |
169 | MemoryRegion *phys_ram = g_new(MemoryRegion, 1); | |
d821732a MW |
170 | qemu_irq *cpu_irq, irq[32]; |
171 | HWSetup *hw; | |
172 | ResetInfo *reset_info; | |
173 | int i; | |
174 | ||
175 | /* memory map */ | |
176 | target_phys_addr_t flash_base = 0x04000000; | |
177 | size_t flash_sector_size = 256 * 1024; | |
178 | size_t flash_size = 32 * 1024 * 1024; | |
179 | target_phys_addr_t ram_base = 0x08000000; | |
180 | size_t ram_size = 64 * 1024 * 1024; | |
181 | target_phys_addr_t uart0_base = 0x80000000; | |
182 | target_phys_addr_t timer0_base = 0x80002000; | |
183 | target_phys_addr_t timer1_base = 0x80010000; | |
184 | target_phys_addr_t timer2_base = 0x80012000; | |
185 | int uart0_irq = 0; | |
186 | int timer0_irq = 1; | |
187 | int timer1_irq = 20; | |
188 | int timer2_irq = 21; | |
189 | target_phys_addr_t hwsetup_base = 0x0bffe000; | |
190 | target_phys_addr_t cmdline_base = 0x0bfff000; | |
191 | target_phys_addr_t initrd_base = 0x08400000; | |
192 | size_t initrd_max = 0x01000000; | |
193 | ||
7267c094 | 194 | reset_info = g_malloc0(sizeof(ResetInfo)); |
d821732a MW |
195 | |
196 | if (cpu_model == NULL) { | |
197 | cpu_model = "lm32-full"; | |
198 | } | |
199 | env = cpu_init(cpu_model); | |
200 | reset_info->env = env; | |
201 | ||
202 | reset_info->flash_base = flash_base; | |
203 | ||
c5705a77 AK |
204 | memory_region_init_ram(phys_ram, "lm32_uclinux.sdram", ram_size); |
205 | vmstate_register_ram_global(phys_ram); | |
88fa8031 | 206 | memory_region_add_subregion(address_space_mem, ram_base, phys_ram); |
d821732a | 207 | |
d821732a MW |
208 | dinfo = drive_get(IF_PFLASH, 0, 0); |
209 | /* Spansion S29NS128P */ | |
cfe5f011 | 210 | pflash_cfi02_register(flash_base, NULL, "lm32_uclinux.flash", flash_size, |
d821732a MW |
211 | dinfo ? dinfo->bdrv : NULL, flash_sector_size, |
212 | flash_size / flash_sector_size, 1, 2, | |
01e0451a | 213 | 0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1); |
d821732a MW |
214 | |
215 | /* create irq lines */ | |
216 | cpu_irq = qemu_allocate_irqs(cpu_irq_handler, env, 1); | |
217 | env->pic_state = lm32_pic_init(*cpu_irq); | |
218 | for (i = 0; i < 32; i++) { | |
219 | irq[i] = qdev_get_gpio_in(env->pic_state, i); | |
220 | } | |
221 | ||
222 | sysbus_create_simple("lm32-uart", uart0_base, irq[uart0_irq]); | |
223 | sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]); | |
224 | sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]); | |
225 | sysbus_create_simple("lm32-timer", timer2_base, irq[timer2_irq]); | |
226 | ||
227 | /* make sure juart isn't the first chardev */ | |
228 | env->juart_state = lm32_juart_init(); | |
229 | ||
230 | reset_info->bootstrap_pc = flash_base; | |
231 | ||
232 | if (kernel_filename) { | |
233 | uint64_t entry; | |
234 | int kernel_size; | |
235 | ||
236 | kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL, | |
237 | 1, ELF_MACHINE, 0); | |
238 | reset_info->bootstrap_pc = entry; | |
239 | ||
240 | if (kernel_size < 0) { | |
241 | kernel_size = load_image_targphys(kernel_filename, ram_base, | |
242 | ram_size); | |
243 | reset_info->bootstrap_pc = ram_base; | |
244 | } | |
245 | ||
246 | if (kernel_size < 0) { | |
247 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
248 | kernel_filename); | |
249 | exit(1); | |
250 | } | |
251 | } | |
252 | ||
253 | /* generate a rom with the hardware description */ | |
254 | hw = hwsetup_init(); | |
255 | hwsetup_add_cpu(hw, "LM32", 75000000); | |
256 | hwsetup_add_flash(hw, "flash", flash_base, flash_size); | |
257 | hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, ram_size); | |
258 | hwsetup_add_timer(hw, "timer0", timer0_base, timer0_irq); | |
259 | hwsetup_add_timer(hw, "timer1_dev_only", timer1_base, timer1_irq); | |
260 | hwsetup_add_timer(hw, "timer2_dev_only", timer2_base, timer2_irq); | |
261 | hwsetup_add_uart(hw, "uart", uart0_base, uart0_irq); | |
262 | hwsetup_add_trailer(hw); | |
263 | hwsetup_create_rom(hw, hwsetup_base); | |
264 | hwsetup_free(hw); | |
265 | ||
266 | reset_info->hwsetup_base = hwsetup_base; | |
267 | ||
268 | if (kernel_cmdline && strlen(kernel_cmdline)) { | |
269 | pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE, | |
270 | kernel_cmdline); | |
271 | reset_info->cmdline_base = cmdline_base; | |
272 | } | |
273 | ||
274 | if (initrd_filename) { | |
275 | size_t initrd_size; | |
276 | initrd_size = load_image_targphys(initrd_filename, initrd_base, | |
277 | initrd_max); | |
278 | reset_info->initrd_base = initrd_base; | |
279 | reset_info->initrd_size = initrd_size; | |
280 | } | |
281 | ||
282 | qemu_register_reset(main_cpu_reset, reset_info); | |
283 | } | |
284 | ||
285 | static QEMUMachine lm32_evr_machine = { | |
286 | .name = "lm32-evr", | |
287 | .desc = "LatticeMico32 EVR32 eval system", | |
288 | .init = lm32_evr_init, | |
289 | .is_default = 1 | |
290 | }; | |
291 | ||
292 | static QEMUMachine lm32_uclinux_machine = { | |
293 | .name = "lm32-uclinux", | |
294 | .desc = "lm32 platform for uClinux and u-boot by Theobroma Systems", | |
295 | .init = lm32_uclinux_init, | |
296 | .is_default = 0 | |
297 | }; | |
298 | ||
299 | static void lm32_machine_init(void) | |
300 | { | |
301 | qemu_register_machine(&lm32_uclinux_machine); | |
302 | qemu_register_machine(&lm32_evr_machine); | |
303 | } | |
304 | ||
305 | machine_init(lm32_machine_init); |