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2c50e26e EI |
1 | /* |
2 | * Model of Xilinx Virtex5 ML507 PPC-440 refdesign. | |
3 | * | |
4 | * Copyright (c) 2010 Edgar E. Iglesias. | |
5 | * | |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
24 | ||
0d75590d | 25 | #include "qemu/osdep.h" |
33c11879 | 26 | #include "cpu.h" |
83c9f4ca PB |
27 | #include "hw/sysbus.h" |
28 | #include "hw/hw.h" | |
0d09e41a PB |
29 | #include "hw/char/serial.h" |
30 | #include "hw/block/flash.h" | |
9c17d615 | 31 | #include "sysemu/sysemu.h" |
bd2be150 | 32 | #include "hw/devices.h" |
83c9f4ca | 33 | #include "hw/boards.h" |
9c17d615 | 34 | #include "sysemu/device_tree.h" |
83c9f4ca | 35 | #include "hw/loader.h" |
2c50e26e | 36 | #include "elf.h" |
d49b6836 | 37 | #include "qemu/error-report.h" |
1de7afc9 | 38 | #include "qemu/log.h" |
022c62cb | 39 | #include "exec/address-spaces.h" |
2c50e26e | 40 | |
0d09e41a PB |
41 | #include "hw/ppc/ppc.h" |
42 | #include "hw/ppc/ppc4xx.h" | |
47b43a1f | 43 | #include "ppc405.h" |
2c50e26e | 44 | |
fa1d36df | 45 | #include "sysemu/block-backend.h" |
2c50e26e EI |
46 | |
47 | #define EPAPR_MAGIC (0x45504150) | |
48 | #define FLASH_SIZE (16 * 1024 * 1024) | |
49 | ||
81cce07e PC |
50 | #define INTC_BASEADDR 0x81800000 |
51 | #define UART16550_BASEADDR 0x83e01003 | |
52 | #define TIMER_BASEADDR 0x83c00000 | |
53 | #define PFLASH_BASEADDR 0xfc000000 | |
54 | ||
55 | #define TIMER_IRQ 3 | |
56 | #define UART16550_IRQ 9 | |
57 | ||
2c50e26e EI |
58 | static struct boot_info |
59 | { | |
60 | uint32_t bootstrap_pc; | |
61 | uint32_t cmdline; | |
62 | uint32_t fdt; | |
63 | uint32_t ima_size; | |
64 | void *vfdt; | |
65 | } boot_info; | |
66 | ||
67 | /* Create reset TLB entries for BookE, spanning the 32bit addr space. */ | |
e2684c0b | 68 | static void mmubooke_create_initial_mapping(CPUPPCState *env, |
2c50e26e | 69 | target_ulong va, |
a8170e5e | 70 | hwaddr pa) |
2c50e26e | 71 | { |
1c53accc | 72 | ppcemb_tlb_t *tlb = &env->tlb.tlbe[0]; |
2c50e26e EI |
73 | |
74 | tlb->attr = 0; | |
75 | tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); | |
a1f7f97b | 76 | tlb->size = 1U << 31; /* up to 0x80000000 */ |
2c50e26e EI |
77 | tlb->EPN = va & TARGET_PAGE_MASK; |
78 | tlb->RPN = pa & TARGET_PAGE_MASK; | |
79 | tlb->PID = 0; | |
80 | ||
1c53accc | 81 | tlb = &env->tlb.tlbe[1]; |
2c50e26e EI |
82 | tlb->attr = 0; |
83 | tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); | |
a1f7f97b | 84 | tlb->size = 1U << 31; /* up to 0xffffffff */ |
2c50e26e EI |
85 | tlb->EPN = 0x80000000 & TARGET_PAGE_MASK; |
86 | tlb->RPN = 0x80000000 & TARGET_PAGE_MASK; | |
87 | tlb->PID = 0; | |
88 | } | |
89 | ||
68281699 AF |
90 | static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size, |
91 | int do_init, | |
92 | const char *cpu_model, | |
93 | uint32_t sysclk) | |
2c50e26e | 94 | { |
d1d4938b | 95 | PowerPCCPU *cpu; |
e2684c0b | 96 | CPUPPCState *env; |
2c50e26e EI |
97 | qemu_irq *irqs; |
98 | ||
d1d4938b AF |
99 | cpu = cpu_ppc_init(cpu_model); |
100 | if (cpu == NULL) { | |
2c50e26e EI |
101 | fprintf(stderr, "Unable to initialize CPU!\n"); |
102 | exit(1); | |
103 | } | |
d1d4938b | 104 | env = &cpu->env; |
2c50e26e | 105 | |
a34a92b9 | 106 | ppc_booke_timers_init(cpu, sysclk, 0/* no flags */); |
2c50e26e EI |
107 | |
108 | ppc_dcr_init(env, NULL, NULL); | |
109 | ||
110 | /* interrupt controller */ | |
7267c094 | 111 | irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB); |
2c50e26e EI |
112 | irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]; |
113 | irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]; | |
49a2942d | 114 | ppcuic_init(env, irqs, 0x0C0, 0, 1); |
68281699 | 115 | return cpu; |
2c50e26e EI |
116 | } |
117 | ||
118 | static void main_cpu_reset(void *opaque) | |
119 | { | |
f8031482 AF |
120 | PowerPCCPU *cpu = opaque; |
121 | CPUPPCState *env = &cpu->env; | |
2c50e26e EI |
122 | struct boot_info *bi = env->load_info; |
123 | ||
f8031482 | 124 | cpu_reset(CPU(cpu)); |
2c50e26e EI |
125 | /* Linux Kernel Parameters (passing device tree): |
126 | * r3: pointer to the fdt | |
127 | * r4: 0 | |
128 | * r5: 0 | |
129 | * r6: epapr magic | |
130 | * r7: size of IMA in bytes | |
131 | * r8: 0 | |
132 | * r9: 0 | |
133 | */ | |
134 | env->gpr[1] = (16<<20) - 8; | |
135 | /* Provide a device-tree. */ | |
136 | env->gpr[3] = bi->fdt; | |
137 | env->nip = bi->bootstrap_pc; | |
138 | ||
139 | /* Create a mapping for the kernel. */ | |
140 | mmubooke_create_initial_mapping(env, 0, 0); | |
141 | env->gpr[6] = tswap32(EPAPR_MAGIC); | |
142 | env->gpr[7] = bi->ima_size; | |
143 | } | |
144 | ||
145 | #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb" | |
a8170e5e | 146 | static int xilinx_load_device_tree(hwaddr addr, |
2c50e26e | 147 | uint32_t ramsize, |
a8170e5e AK |
148 | hwaddr initrd_base, |
149 | hwaddr initrd_size, | |
2c50e26e EI |
150 | const char *kernel_cmdline) |
151 | { | |
152 | char *path; | |
153 | int fdt_size; | |
daf285b6 | 154 | void *fdt = NULL; |
2c50e26e | 155 | int r; |
daf285b6 | 156 | const char *dtb_filename; |
2c50e26e | 157 | |
daf285b6 EV |
158 | dtb_filename = qemu_opt_get(qemu_get_machine_opts(), "dtb"); |
159 | if (dtb_filename) { | |
160 | fdt = load_device_tree(dtb_filename, &fdt_size); | |
161 | if (!fdt) { | |
162 | error_report("Error while loading device tree file '%s'", | |
163 | dtb_filename); | |
2c50e26e | 164 | } |
daf285b6 EV |
165 | } else { |
166 | /* Try the local "ppc.dtb" override. */ | |
167 | fdt = load_device_tree("ppc.dtb", &fdt_size); | |
3b2e3dc9 | 168 | if (!fdt) { |
daf285b6 EV |
169 | path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
170 | if (path) { | |
171 | fdt = load_device_tree(path, &fdt_size); | |
172 | g_free(path); | |
173 | } | |
3b2e3dc9 | 174 | } |
2c50e26e | 175 | } |
daf285b6 EV |
176 | if (!fdt) { |
177 | return 0; | |
178 | } | |
0658aa9c EI |
179 | |
180 | r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
181 | initrd_base); | |
182 | if (r < 0) { | |
183 | error_report("couldn't set /chosen/linux,initrd-start"); | |
184 | } | |
185 | ||
186 | r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
187 | (initrd_base + initrd_size)); | |
188 | if (r < 0) { | |
189 | error_report("couldn't set /chosen/linux,initrd-end"); | |
190 | } | |
191 | ||
5a4348d1 | 192 | r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline); |
2c50e26e EI |
193 | if (r < 0) |
194 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
e1fe50dc | 195 | cpu_physical_memory_write(addr, fdt, fdt_size); |
2c50e26e EI |
196 | return fdt_size; |
197 | } | |
198 | ||
3ef96221 | 199 | static void virtex_init(MachineState *machine) |
2c50e26e | 200 | { |
3ef96221 | 201 | ram_addr_t ram_size = machine->ram_size; |
3ef96221 MA |
202 | const char *kernel_filename = machine->kernel_filename; |
203 | const char *kernel_cmdline = machine->kernel_cmdline; | |
0658aa9c EI |
204 | hwaddr initrd_base = 0; |
205 | int initrd_size = 0; | |
39186d8a | 206 | MemoryRegion *address_space_mem = get_system_memory(); |
2c50e26e | 207 | DeviceState *dev; |
68281699 | 208 | PowerPCCPU *cpu; |
e2684c0b | 209 | CPUPPCState *env; |
a8170e5e | 210 | hwaddr ram_base = 0; |
2c50e26e | 211 | DriveInfo *dinfo; |
333b13fc | 212 | MemoryRegion *phys_ram = g_new(MemoryRegion, 1); |
2c50e26e | 213 | qemu_irq irq[32], *cpu_irq; |
2c50e26e EI |
214 | int kernel_size; |
215 | int i; | |
216 | ||
217 | /* init CPUs */ | |
19fb2c36 BR |
218 | if (machine->cpu_model == NULL) { |
219 | machine->cpu_model = "440-Xilinx"; | |
2c50e26e EI |
220 | } |
221 | ||
19fb2c36 | 222 | cpu = ppc440_init_xilinx(&ram_size, 1, machine->cpu_model, 400000000); |
68281699 | 223 | env = &cpu->env; |
00469dc3 VP |
224 | |
225 | if (env->mmu_model != POWERPC_MMU_BOOKE) { | |
226 | fprintf(stderr, "MMU model %i not supported by this machine.\n", | |
227 | env->mmu_model); | |
228 | exit(1); | |
229 | } | |
230 | ||
f8031482 | 231 | qemu_register_reset(main_cpu_reset, cpu); |
2c50e26e | 232 | |
e938ba0c | 233 | memory_region_allocate_system_memory(phys_ram, NULL, "ram", ram_size); |
333b13fc | 234 | memory_region_add_subregion(address_space_mem, ram_base, phys_ram); |
2c50e26e | 235 | |
2c50e26e | 236 | dinfo = drive_get(IF_PFLASH, 0, 0); |
81cce07e | 237 | pflash_cfi01_register(PFLASH_BASEADDR, NULL, "virtex.flash", FLASH_SIZE, |
4be74634 | 238 | dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, |
fa1d36df | 239 | (64 * 1024), FLASH_SIZE >> 16, |
01e0451a | 240 | 1, 0x89, 0x18, 0x0000, 0x0, 1); |
2c50e26e EI |
241 | |
242 | cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT]; | |
13c9bfbf PC |
243 | dev = qdev_create(NULL, "xlnx.xps-intc"); |
244 | qdev_prop_set_uint32(dev, "kind-of-intr", 0); | |
245 | qdev_init_nofail(dev); | |
246 | sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); | |
247 | sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq[0]); | |
2c50e26e EI |
248 | for (i = 0; i < 32; i++) { |
249 | irq[i] = qdev_get_gpio_in(dev, i); | |
250 | } | |
251 | ||
81cce07e PC |
252 | serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ], |
253 | 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); | |
2c50e26e EI |
254 | |
255 | /* 2 timers at irq 2 @ 62 Mhz. */ | |
29873712 PC |
256 | dev = qdev_create(NULL, "xlnx.xps-timer"); |
257 | qdev_prop_set_uint32(dev, "one-timer-only", 0); | |
258 | qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); | |
259 | qdev_init_nofail(dev); | |
260 | sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); | |
261 | sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); | |
2c50e26e EI |
262 | |
263 | if (kernel_filename) { | |
264 | uint64_t entry, low, high; | |
a8170e5e | 265 | hwaddr boot_offset; |
2c50e26e EI |
266 | |
267 | /* Boots a kernel elf binary. */ | |
268 | kernel_size = load_elf(kernel_filename, NULL, NULL, | |
7ef295ea PC |
269 | &entry, &low, &high, 1, PPC_ELF_MACHINE, |
270 | 0, 0); | |
2c50e26e EI |
271 | boot_info.bootstrap_pc = entry & 0x00ffffff; |
272 | ||
273 | if (kernel_size < 0) { | |
274 | boot_offset = 0x1200000; | |
275 | /* If we failed loading ELF's try a raw image. */ | |
276 | kernel_size = load_image_targphys(kernel_filename, | |
277 | boot_offset, | |
278 | ram_size); | |
279 | boot_info.bootstrap_pc = boot_offset; | |
280 | high = boot_info.bootstrap_pc + kernel_size + 8192; | |
281 | } | |
282 | ||
283 | boot_info.ima_size = kernel_size; | |
284 | ||
0658aa9c | 285 | /* Load initrd. */ |
3ef96221 | 286 | if (machine->initrd_filename) { |
0658aa9c | 287 | initrd_base = high = ROUND_UP(high, 4); |
3ef96221 | 288 | initrd_size = load_image_targphys(machine->initrd_filename, |
0658aa9c EI |
289 | high, ram_size - high); |
290 | ||
291 | if (initrd_size < 0) { | |
292 | error_report("couldn't load ram disk '%s'", | |
3ef96221 | 293 | machine->initrd_filename); |
0658aa9c EI |
294 | exit(1); |
295 | } | |
296 | high = ROUND_UP(high + initrd_size, 4); | |
297 | } | |
298 | ||
2c50e26e EI |
299 | /* Provide a device-tree. */ |
300 | boot_info.fdt = high + (8192 * 2); | |
301 | boot_info.fdt &= ~8191; | |
0658aa9c EI |
302 | |
303 | xilinx_load_device_tree(boot_info.fdt, ram_size, | |
304 | initrd_base, initrd_size, | |
305 | kernel_cmdline); | |
2c50e26e EI |
306 | } |
307 | env->load_info = &boot_info; | |
308 | } | |
309 | ||
e264d29d | 310 | static void virtex_machine_init(MachineClass *mc) |
2c50e26e | 311 | { |
e264d29d EH |
312 | mc->desc = "Xilinx Virtex ML507 reference design"; |
313 | mc->init = virtex_init; | |
2c50e26e EI |
314 | } |
315 | ||
e264d29d | 316 | DEFINE_MACHINE("virtex-ml507", virtex_machine_init) |