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20#include "qemu/osdep.h"
21#include "qemu/units.h"
22#include "qemu/error-report.h"
23#include "qemu-common.h"
24#include "cpu.h"
25#include "hw/sysbus.h"
26#include "hw/hw.h"
27#include "hw/block/flash.h"
28#include "hw/devices.h"
29#include "hw/boards.h"
30#include "hw/loader.h"
31#include "elf.h"
32#include "lm32_hwsetup.h"
33#include "lm32.h"
34#include "exec/address-spaces.h"
35#include "sysemu/sysemu.h"
36
37typedef struct {
38 LM32CPU *cpu;
39 hwaddr bootstrap_pc;
40 hwaddr flash_base;
41 hwaddr hwsetup_base;
42 hwaddr initrd_base;
43 size_t initrd_size;
44 hwaddr cmdline_base;
45} ResetInfo;
46
47static void cpu_irq_handler(void *opaque, int irq, int level)
48{
49 LM32CPU *cpu = opaque;
50 CPUState *cs = CPU(cpu);
51
52 if (level) {
53 cpu_interrupt(cs, CPU_INTERRUPT_HARD);
54 } else {
55 cpu_reset_interrupt(cs, CPU_INTERRUPT_HARD);
56 }
57}
58
59static void main_cpu_reset(void *opaque)
60{
61 ResetInfo *reset_info = opaque;
62 CPULM32State *env = &reset_info->cpu->env;
63
64 cpu_reset(CPU(reset_info->cpu));
65
66
67 env->pc = (uint32_t)reset_info->bootstrap_pc;
68 env->regs[R_R1] = (uint32_t)reset_info->hwsetup_base;
69 env->regs[R_R2] = (uint32_t)reset_info->cmdline_base;
70 env->regs[R_R3] = (uint32_t)reset_info->initrd_base;
71 env->regs[R_R4] = (uint32_t)(reset_info->initrd_base +
72 reset_info->initrd_size);
73 env->eba = reset_info->flash_base;
74 env->deba = reset_info->flash_base;
75}
76
77static void lm32_evr_init(MachineState *machine)
78{
79 const char *kernel_filename = machine->kernel_filename;
80 LM32CPU *cpu;
81 CPULM32State *env;
82 DriveInfo *dinfo;
83 MemoryRegion *address_space_mem = get_system_memory();
84 MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
85 qemu_irq irq[32];
86 ResetInfo *reset_info;
87 int i;
88
89
90 hwaddr flash_base = 0x04000000;
91 size_t flash_sector_size = 256 * KiB;
92 size_t flash_size = 32 * MiB;
93 hwaddr ram_base = 0x08000000;
94 size_t ram_size = 64 * MiB;
95 hwaddr timer0_base = 0x80002000;
96 hwaddr uart0_base = 0x80006000;
97 hwaddr timer1_base = 0x8000a000;
98 int uart0_irq = 0;
99 int timer0_irq = 1;
100 int timer1_irq = 3;
101
102 reset_info = g_malloc0(sizeof(ResetInfo));
103
104 cpu = LM32_CPU(cpu_create(machine->cpu_type));
105
106 env = &cpu->env;
107 reset_info->cpu = cpu;
108
109 reset_info->flash_base = flash_base;
110
111 memory_region_allocate_system_memory(phys_ram, NULL, "lm32_evr.sdram",
112 ram_size);
113 memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
114
115 dinfo = drive_get(IF_PFLASH, 0, 0);
116
117 pflash_cfi02_register(flash_base, NULL, "lm32_evr.flash", flash_size,
118 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
119 flash_sector_size, flash_size / flash_sector_size,
120 1, 2, 0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);
121
122
123 env->pic_state = lm32_pic_init(qemu_allocate_irq(cpu_irq_handler, cpu, 0));
124 for (i = 0; i < 32; i++) {
125 irq[i] = qdev_get_gpio_in(env->pic_state, i);
126 }
127
128 lm32_uart_create(uart0_base, irq[uart0_irq], serial_hd(0));
129 sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
130 sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
131
132
133 env->juart_state = lm32_juart_init(serial_hd(1));
134
135 reset_info->bootstrap_pc = flash_base;
136
137 if (kernel_filename) {
138 uint64_t entry;
139 int kernel_size;
140
141 kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
142 1, EM_LATTICEMICO32, 0, 0);
143 reset_info->bootstrap_pc = entry;
144
145 if (kernel_size < 0) {
146 kernel_size = load_image_targphys(kernel_filename, ram_base,
147 ram_size);
148 reset_info->bootstrap_pc = ram_base;
149 }
150
151 if (kernel_size < 0) {
152 error_report("could not load kernel '%s'", kernel_filename);
153 exit(1);
154 }
155 }
156
157 qemu_register_reset(main_cpu_reset, reset_info);
158}
159
160static void lm32_uclinux_init(MachineState *machine)
161{
162 const char *kernel_filename = machine->kernel_filename;
163 const char *kernel_cmdline = machine->kernel_cmdline;
164 const char *initrd_filename = machine->initrd_filename;
165 LM32CPU *cpu;
166 CPULM32State *env;
167 DriveInfo *dinfo;
168 MemoryRegion *address_space_mem = get_system_memory();
169 MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
170 qemu_irq irq[32];
171 HWSetup *hw;
172 ResetInfo *reset_info;
173 int i;
174
175
176 hwaddr flash_base = 0x04000000;
177 size_t flash_sector_size = 256 * KiB;
178 size_t flash_size = 32 * MiB;
179 hwaddr ram_base = 0x08000000;
180 size_t ram_size = 64 * MiB;
181 hwaddr uart0_base = 0x80000000;
182 hwaddr timer0_base = 0x80002000;
183 hwaddr timer1_base = 0x80010000;
184 hwaddr timer2_base = 0x80012000;
185 int uart0_irq = 0;
186 int timer0_irq = 1;
187 int timer1_irq = 20;
188 int timer2_irq = 21;
189 hwaddr hwsetup_base = 0x0bffe000;
190 hwaddr cmdline_base = 0x0bfff000;
191 hwaddr initrd_base = 0x08400000;
192 size_t initrd_max = 0x01000000;
193
194 reset_info = g_malloc0(sizeof(ResetInfo));
195
196 cpu = LM32_CPU(cpu_create(machine->cpu_type));
197
198 env = &cpu->env;
199 reset_info->cpu = cpu;
200
201 reset_info->flash_base = flash_base;
202
203 memory_region_allocate_system_memory(phys_ram, NULL,
204 "lm32_uclinux.sdram", ram_size);
205 memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
206
207 dinfo = drive_get(IF_PFLASH, 0, 0);
208
209 pflash_cfi02_register(flash_base, NULL, "lm32_uclinux.flash", flash_size,
210 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
211 flash_sector_size, flash_size / flash_sector_size,
212 1, 2, 0x01, 0x7e, 0x43, 0x00, 0x555, 0x2aa, 1);
213
214
215 env->pic_state = lm32_pic_init(qemu_allocate_irq(cpu_irq_handler, env, 0));
216 for (i = 0; i < 32; i++) {
217 irq[i] = qdev_get_gpio_in(env->pic_state, i);
218 }
219
220 lm32_uart_create(uart0_base, irq[uart0_irq], serial_hd(0));
221 sysbus_create_simple("lm32-timer", timer0_base, irq[timer0_irq]);
222 sysbus_create_simple("lm32-timer", timer1_base, irq[timer1_irq]);
223 sysbus_create_simple("lm32-timer", timer2_base, irq[timer2_irq]);
224
225
226 env->juart_state = lm32_juart_init(serial_hd(1));
227
228 reset_info->bootstrap_pc = flash_base;
229
230 if (kernel_filename) {
231 uint64_t entry;
232 int kernel_size;
233
234 kernel_size = load_elf(kernel_filename, NULL, NULL, &entry, NULL, NULL,
235 1, EM_LATTICEMICO32, 0, 0);
236 reset_info->bootstrap_pc = entry;
237
238 if (kernel_size < 0) {
239 kernel_size = load_image_targphys(kernel_filename, ram_base,
240 ram_size);
241 reset_info->bootstrap_pc = ram_base;
242 }
243
244 if (kernel_size < 0) {
245 error_report("could not load kernel '%s'", kernel_filename);
246 exit(1);
247 }
248 }
249
250
251 hw = hwsetup_init();
252 hwsetup_add_cpu(hw, "LM32", 75000000);
253 hwsetup_add_flash(hw, "flash", flash_base, flash_size);
254 hwsetup_add_ddr_sdram(hw, "ddr_sdram", ram_base, ram_size);
255 hwsetup_add_timer(hw, "timer0", timer0_base, timer0_irq);
256 hwsetup_add_timer(hw, "timer1_dev_only", timer1_base, timer1_irq);
257 hwsetup_add_timer(hw, "timer2_dev_only", timer2_base, timer2_irq);
258 hwsetup_add_uart(hw, "uart", uart0_base, uart0_irq);
259 hwsetup_add_trailer(hw);
260 hwsetup_create_rom(hw, hwsetup_base);
261 hwsetup_free(hw);
262
263 reset_info->hwsetup_base = hwsetup_base;
264
265 if (kernel_cmdline && strlen(kernel_cmdline)) {
266 pstrcpy_targphys("cmdline", cmdline_base, TARGET_PAGE_SIZE,
267 kernel_cmdline);
268 reset_info->cmdline_base = cmdline_base;
269 }
270
271 if (initrd_filename) {
272 size_t initrd_size;
273 initrd_size = load_image_targphys(initrd_filename, initrd_base,
274 initrd_max);
275 reset_info->initrd_base = initrd_base;
276 reset_info->initrd_size = initrd_size;
277 }
278
279 qemu_register_reset(main_cpu_reset, reset_info);
280}
281
282static void lm32_evr_class_init(ObjectClass *oc, void *data)
283{
284 MachineClass *mc = MACHINE_CLASS(oc);
285
286 mc->desc = "LatticeMico32 EVR32 eval system";
287 mc->init = lm32_evr_init;
288 mc->is_default = 1;
289 mc->default_cpu_type = LM32_CPU_TYPE_NAME("lm32-full");
290}
291
292static const TypeInfo lm32_evr_type = {
293 .name = MACHINE_TYPE_NAME("lm32-evr"),
294 .parent = TYPE_MACHINE,
295 .class_init = lm32_evr_class_init,
296};
297
298static void lm32_uclinux_class_init(ObjectClass *oc, void *data)
299{
300 MachineClass *mc = MACHINE_CLASS(oc);
301
302 mc->desc = "lm32 platform for uClinux and u-boot by Theobroma Systems";
303 mc->init = lm32_uclinux_init;
304 mc->is_default = 0;
305 mc->default_cpu_type = LM32_CPU_TYPE_NAME("lm32-full");
306}
307
308static const TypeInfo lm32_uclinux_type = {
309 .name = MACHINE_TYPE_NAME("lm32-uclinux"),
310 .parent = TYPE_MACHINE,
311 .class_init = lm32_uclinux_class_init,
312};
313
314static void lm32_machine_init(void)
315{
316 type_register_static(&lm32_evr_type);
317 type_register_static(&lm32_uclinux_type);
318}
319
320type_init(lm32_machine_init)
321
