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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" |
83c9f4ca PB |
26 | #include "hw/sysbus.h" |
27 | #include "hw/hw.h" | |
0d09e41a PB |
28 | #include "hw/char/serial.h" |
29 | #include "hw/block/flash.h" | |
9c17d615 | 30 | #include "sysemu/sysemu.h" |
bd2be150 | 31 | #include "hw/devices.h" |
83c9f4ca | 32 | #include "hw/boards.h" |
9c17d615 | 33 | #include "sysemu/device_tree.h" |
83c9f4ca | 34 | #include "hw/loader.h" |
2c50e26e | 35 | #include "elf.h" |
d49b6836 | 36 | #include "qemu/error-report.h" |
1de7afc9 | 37 | #include "qemu/log.h" |
022c62cb | 38 | #include "exec/address-spaces.h" |
2c50e26e | 39 | |
0d09e41a PB |
40 | #include "hw/ppc/ppc.h" |
41 | #include "hw/ppc/ppc4xx.h" | |
47b43a1f | 42 | #include "ppc405.h" |
2c50e26e | 43 | |
fa1d36df | 44 | #include "sysemu/block-backend.h" |
2c50e26e EI |
45 | |
46 | #define EPAPR_MAGIC (0x45504150) | |
47 | #define FLASH_SIZE (16 * 1024 * 1024) | |
48 | ||
81cce07e PC |
49 | #define INTC_BASEADDR 0x81800000 |
50 | #define UART16550_BASEADDR 0x83e01003 | |
51 | #define TIMER_BASEADDR 0x83c00000 | |
52 | #define PFLASH_BASEADDR 0xfc000000 | |
53 | ||
54 | #define TIMER_IRQ 3 | |
55 | #define UART16550_IRQ 9 | |
56 | ||
2c50e26e EI |
57 | static struct boot_info |
58 | { | |
59 | uint32_t bootstrap_pc; | |
60 | uint32_t cmdline; | |
61 | uint32_t fdt; | |
62 | uint32_t ima_size; | |
63 | void *vfdt; | |
64 | } boot_info; | |
65 | ||
66 | /* Create reset TLB entries for BookE, spanning the 32bit addr space. */ | |
e2684c0b | 67 | static void mmubooke_create_initial_mapping(CPUPPCState *env, |
2c50e26e | 68 | target_ulong va, |
a8170e5e | 69 | hwaddr pa) |
2c50e26e | 70 | { |
1c53accc | 71 | ppcemb_tlb_t *tlb = &env->tlb.tlbe[0]; |
2c50e26e EI |
72 | |
73 | tlb->attr = 0; | |
74 | tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); | |
a1f7f97b | 75 | tlb->size = 1U << 31; /* up to 0x80000000 */ |
2c50e26e EI |
76 | tlb->EPN = va & TARGET_PAGE_MASK; |
77 | tlb->RPN = pa & TARGET_PAGE_MASK; | |
78 | tlb->PID = 0; | |
79 | ||
1c53accc | 80 | tlb = &env->tlb.tlbe[1]; |
2c50e26e EI |
81 | tlb->attr = 0; |
82 | tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4); | |
a1f7f97b | 83 | tlb->size = 1U << 31; /* up to 0xffffffff */ |
2c50e26e EI |
84 | tlb->EPN = 0x80000000 & TARGET_PAGE_MASK; |
85 | tlb->RPN = 0x80000000 & TARGET_PAGE_MASK; | |
86 | tlb->PID = 0; | |
87 | } | |
88 | ||
68281699 AF |
89 | static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size, |
90 | int do_init, | |
91 | const char *cpu_model, | |
92 | uint32_t sysclk) | |
2c50e26e | 93 | { |
d1d4938b | 94 | PowerPCCPU *cpu; |
e2684c0b | 95 | CPUPPCState *env; |
2c50e26e EI |
96 | qemu_irq *irqs; |
97 | ||
d1d4938b AF |
98 | cpu = cpu_ppc_init(cpu_model); |
99 | if (cpu == NULL) { | |
2c50e26e EI |
100 | fprintf(stderr, "Unable to initialize CPU!\n"); |
101 | exit(1); | |
102 | } | |
d1d4938b | 103 | env = &cpu->env; |
2c50e26e | 104 | |
a34a92b9 | 105 | ppc_booke_timers_init(cpu, sysclk, 0/* no flags */); |
2c50e26e EI |
106 | |
107 | ppc_dcr_init(env, NULL, NULL); | |
108 | ||
109 | /* interrupt controller */ | |
7267c094 | 110 | irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB); |
2c50e26e EI |
111 | irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]; |
112 | irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]; | |
49a2942d | 113 | ppcuic_init(env, irqs, 0x0C0, 0, 1); |
68281699 | 114 | return cpu; |
2c50e26e EI |
115 | } |
116 | ||
117 | static void main_cpu_reset(void *opaque) | |
118 | { | |
f8031482 AF |
119 | PowerPCCPU *cpu = opaque; |
120 | CPUPPCState *env = &cpu->env; | |
2c50e26e EI |
121 | struct boot_info *bi = env->load_info; |
122 | ||
f8031482 | 123 | cpu_reset(CPU(cpu)); |
2c50e26e EI |
124 | /* Linux Kernel Parameters (passing device tree): |
125 | * r3: pointer to the fdt | |
126 | * r4: 0 | |
127 | * r5: 0 | |
128 | * r6: epapr magic | |
129 | * r7: size of IMA in bytes | |
130 | * r8: 0 | |
131 | * r9: 0 | |
132 | */ | |
133 | env->gpr[1] = (16<<20) - 8; | |
134 | /* Provide a device-tree. */ | |
135 | env->gpr[3] = bi->fdt; | |
136 | env->nip = bi->bootstrap_pc; | |
137 | ||
138 | /* Create a mapping for the kernel. */ | |
139 | mmubooke_create_initial_mapping(env, 0, 0); | |
140 | env->gpr[6] = tswap32(EPAPR_MAGIC); | |
141 | env->gpr[7] = bi->ima_size; | |
142 | } | |
143 | ||
144 | #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb" | |
a8170e5e | 145 | static int xilinx_load_device_tree(hwaddr addr, |
2c50e26e | 146 | uint32_t ramsize, |
a8170e5e AK |
147 | hwaddr initrd_base, |
148 | hwaddr initrd_size, | |
2c50e26e EI |
149 | const char *kernel_cmdline) |
150 | { | |
151 | char *path; | |
152 | int fdt_size; | |
daf285b6 | 153 | void *fdt = NULL; |
2c50e26e | 154 | int r; |
daf285b6 | 155 | const char *dtb_filename; |
2c50e26e | 156 | |
daf285b6 EV |
157 | dtb_filename = qemu_opt_get(qemu_get_machine_opts(), "dtb"); |
158 | if (dtb_filename) { | |
159 | fdt = load_device_tree(dtb_filename, &fdt_size); | |
160 | if (!fdt) { | |
161 | error_report("Error while loading device tree file '%s'", | |
162 | dtb_filename); | |
2c50e26e | 163 | } |
daf285b6 EV |
164 | } else { |
165 | /* Try the local "ppc.dtb" override. */ | |
166 | fdt = load_device_tree("ppc.dtb", &fdt_size); | |
3b2e3dc9 | 167 | if (!fdt) { |
daf285b6 EV |
168 | path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
169 | if (path) { | |
170 | fdt = load_device_tree(path, &fdt_size); | |
171 | g_free(path); | |
172 | } | |
3b2e3dc9 | 173 | } |
2c50e26e | 174 | } |
daf285b6 EV |
175 | if (!fdt) { |
176 | return 0; | |
177 | } | |
0658aa9c EI |
178 | |
179 | r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
180 | initrd_base); | |
181 | if (r < 0) { | |
182 | error_report("couldn't set /chosen/linux,initrd-start"); | |
183 | } | |
184 | ||
185 | r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
186 | (initrd_base + initrd_size)); | |
187 | if (r < 0) { | |
188 | error_report("couldn't set /chosen/linux,initrd-end"); | |
189 | } | |
190 | ||
5a4348d1 | 191 | r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline); |
2c50e26e EI |
192 | if (r < 0) |
193 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
e1fe50dc | 194 | cpu_physical_memory_write(addr, fdt, fdt_size); |
2c50e26e EI |
195 | return fdt_size; |
196 | } | |
197 | ||
3ef96221 | 198 | static void virtex_init(MachineState *machine) |
2c50e26e | 199 | { |
3ef96221 | 200 | ram_addr_t ram_size = machine->ram_size; |
3ef96221 MA |
201 | const char *kernel_filename = machine->kernel_filename; |
202 | const char *kernel_cmdline = machine->kernel_cmdline; | |
0658aa9c EI |
203 | hwaddr initrd_base = 0; |
204 | int initrd_size = 0; | |
39186d8a | 205 | MemoryRegion *address_space_mem = get_system_memory(); |
2c50e26e | 206 | DeviceState *dev; |
68281699 | 207 | PowerPCCPU *cpu; |
e2684c0b | 208 | CPUPPCState *env; |
a8170e5e | 209 | hwaddr ram_base = 0; |
2c50e26e | 210 | DriveInfo *dinfo; |
333b13fc | 211 | MemoryRegion *phys_ram = g_new(MemoryRegion, 1); |
2c50e26e | 212 | qemu_irq irq[32], *cpu_irq; |
2c50e26e EI |
213 | int kernel_size; |
214 | int i; | |
215 | ||
216 | /* init CPUs */ | |
19fb2c36 BR |
217 | if (machine->cpu_model == NULL) { |
218 | machine->cpu_model = "440-Xilinx"; | |
2c50e26e EI |
219 | } |
220 | ||
19fb2c36 | 221 | cpu = ppc440_init_xilinx(&ram_size, 1, machine->cpu_model, 400000000); |
68281699 | 222 | env = &cpu->env; |
f8031482 | 223 | qemu_register_reset(main_cpu_reset, cpu); |
2c50e26e | 224 | |
e938ba0c | 225 | memory_region_allocate_system_memory(phys_ram, NULL, "ram", ram_size); |
333b13fc | 226 | memory_region_add_subregion(address_space_mem, ram_base, phys_ram); |
2c50e26e | 227 | |
2c50e26e | 228 | dinfo = drive_get(IF_PFLASH, 0, 0); |
81cce07e | 229 | pflash_cfi01_register(PFLASH_BASEADDR, NULL, "virtex.flash", FLASH_SIZE, |
4be74634 | 230 | dinfo ? blk_by_legacy_dinfo(dinfo) : NULL, |
fa1d36df | 231 | (64 * 1024), FLASH_SIZE >> 16, |
01e0451a | 232 | 1, 0x89, 0x18, 0x0000, 0x0, 1); |
2c50e26e EI |
233 | |
234 | cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT]; | |
13c9bfbf PC |
235 | dev = qdev_create(NULL, "xlnx.xps-intc"); |
236 | qdev_prop_set_uint32(dev, "kind-of-intr", 0); | |
237 | qdev_init_nofail(dev); | |
238 | sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR); | |
239 | sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq[0]); | |
2c50e26e EI |
240 | for (i = 0; i < 32; i++) { |
241 | irq[i] = qdev_get_gpio_in(dev, i); | |
242 | } | |
243 | ||
81cce07e PC |
244 | serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ], |
245 | 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); | |
2c50e26e EI |
246 | |
247 | /* 2 timers at irq 2 @ 62 Mhz. */ | |
29873712 PC |
248 | dev = qdev_create(NULL, "xlnx.xps-timer"); |
249 | qdev_prop_set_uint32(dev, "one-timer-only", 0); | |
250 | qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000); | |
251 | qdev_init_nofail(dev); | |
252 | sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR); | |
253 | sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]); | |
2c50e26e EI |
254 | |
255 | if (kernel_filename) { | |
256 | uint64_t entry, low, high; | |
a8170e5e | 257 | hwaddr boot_offset; |
2c50e26e EI |
258 | |
259 | /* Boots a kernel elf binary. */ | |
260 | kernel_size = load_elf(kernel_filename, NULL, NULL, | |
4ecd4d16 | 261 | &entry, &low, &high, 1, PPC_ELF_MACHINE, 0); |
2c50e26e EI |
262 | boot_info.bootstrap_pc = entry & 0x00ffffff; |
263 | ||
264 | if (kernel_size < 0) { | |
265 | boot_offset = 0x1200000; | |
266 | /* If we failed loading ELF's try a raw image. */ | |
267 | kernel_size = load_image_targphys(kernel_filename, | |
268 | boot_offset, | |
269 | ram_size); | |
270 | boot_info.bootstrap_pc = boot_offset; | |
271 | high = boot_info.bootstrap_pc + kernel_size + 8192; | |
272 | } | |
273 | ||
274 | boot_info.ima_size = kernel_size; | |
275 | ||
0658aa9c | 276 | /* Load initrd. */ |
3ef96221 | 277 | if (machine->initrd_filename) { |
0658aa9c | 278 | initrd_base = high = ROUND_UP(high, 4); |
3ef96221 | 279 | initrd_size = load_image_targphys(machine->initrd_filename, |
0658aa9c EI |
280 | high, ram_size - high); |
281 | ||
282 | if (initrd_size < 0) { | |
283 | error_report("couldn't load ram disk '%s'", | |
3ef96221 | 284 | machine->initrd_filename); |
0658aa9c EI |
285 | exit(1); |
286 | } | |
287 | high = ROUND_UP(high + initrd_size, 4); | |
288 | } | |
289 | ||
2c50e26e EI |
290 | /* Provide a device-tree. */ |
291 | boot_info.fdt = high + (8192 * 2); | |
292 | boot_info.fdt &= ~8191; | |
0658aa9c EI |
293 | |
294 | xilinx_load_device_tree(boot_info.fdt, ram_size, | |
295 | initrd_base, initrd_size, | |
296 | kernel_cmdline); | |
2c50e26e EI |
297 | } |
298 | env->load_info = &boot_info; | |
299 | } | |
300 | ||
e264d29d | 301 | static void virtex_machine_init(MachineClass *mc) |
2c50e26e | 302 | { |
e264d29d EH |
303 | mc->desc = "Xilinx Virtex ML507 reference design"; |
304 | mc->init = virtex_init; | |
2c50e26e EI |
305 | } |
306 | ||
e264d29d | 307 | DEFINE_MACHINE("virtex-ml507", virtex_machine_init) |