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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
83c9f4ca
PB
25#include "hw/sysbus.h"
26#include "hw/hw.h"
0d09e41a
PB
27#include "hw/char/serial.h"
28#include "hw/block/flash.h"
9c17d615 29#include "sysemu/sysemu.h"
bd2be150 30#include "hw/devices.h"
83c9f4ca 31#include "hw/boards.h"
9c17d615 32#include "sysemu/device_tree.h"
83c9f4ca 33#include "hw/loader.h"
2c50e26e 34#include "elf.h"
1de7afc9 35#include "qemu/log.h"
022c62cb 36#include "exec/address-spaces.h"
2c50e26e 37
0d09e41a
PB
38#include "hw/ppc/ppc.h"
39#include "hw/ppc/ppc4xx.h"
47b43a1f 40#include "ppc405.h"
2c50e26e 41
9c17d615 42#include "sysemu/blockdev.h"
d5001cf7 43#include "qapi/qmp/qerror.h"
2c50e26e
EI
44
45#define EPAPR_MAGIC (0x45504150)
46#define FLASH_SIZE (16 * 1024 * 1024)
47
81cce07e
PC
48#define INTC_BASEADDR 0x81800000
49#define UART16550_BASEADDR 0x83e01003
50#define TIMER_BASEADDR 0x83c00000
51#define PFLASH_BASEADDR 0xfc000000
52
53#define TIMER_IRQ 3
54#define UART16550_IRQ 9
55
2c50e26e
EI
56static struct boot_info
57{
58 uint32_t bootstrap_pc;
59 uint32_t cmdline;
60 uint32_t fdt;
61 uint32_t ima_size;
62 void *vfdt;
63} boot_info;
64
65/* Create reset TLB entries for BookE, spanning the 32bit addr space. */
e2684c0b 66static void mmubooke_create_initial_mapping(CPUPPCState *env,
2c50e26e 67 target_ulong va,
a8170e5e 68 hwaddr pa)
2c50e26e 69{
1c53accc 70 ppcemb_tlb_t *tlb = &env->tlb.tlbe[0];
2c50e26e
EI
71
72 tlb->attr = 0;
73 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
a1f7f97b 74 tlb->size = 1U << 31; /* up to 0x80000000 */
2c50e26e
EI
75 tlb->EPN = va & TARGET_PAGE_MASK;
76 tlb->RPN = pa & TARGET_PAGE_MASK;
77 tlb->PID = 0;
78
1c53accc 79 tlb = &env->tlb.tlbe[1];
2c50e26e
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80 tlb->attr = 0;
81 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
a1f7f97b 82 tlb->size = 1U << 31; /* up to 0xffffffff */
2c50e26e
EI
83 tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
84 tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
85 tlb->PID = 0;
86}
87
68281699
AF
88static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
89 int do_init,
90 const char *cpu_model,
91 uint32_t sysclk)
2c50e26e 92{
d1d4938b 93 PowerPCCPU *cpu;
e2684c0b 94 CPUPPCState *env;
2c50e26e
EI
95 qemu_irq *irqs;
96
d1d4938b
AF
97 cpu = cpu_ppc_init(cpu_model);
98 if (cpu == NULL) {
2c50e26e
EI
99 fprintf(stderr, "Unable to initialize CPU!\n");
100 exit(1);
101 }
d1d4938b 102 env = &cpu->env;
2c50e26e 103
a34a92b9 104 ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);
2c50e26e
EI
105
106 ppc_dcr_init(env, NULL, NULL);
107
108 /* interrupt controller */
7267c094 109 irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
2c50e26e
EI
110 irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
111 irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
49a2942d 112 ppcuic_init(env, irqs, 0x0C0, 0, 1);
68281699 113 return cpu;
2c50e26e
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114}
115
116static void main_cpu_reset(void *opaque)
117{
f8031482
AF
118 PowerPCCPU *cpu = opaque;
119 CPUPPCState *env = &cpu->env;
2c50e26e
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120 struct boot_info *bi = env->load_info;
121
f8031482 122 cpu_reset(CPU(cpu));
2c50e26e
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123 /* Linux Kernel Parameters (passing device tree):
124 * r3: pointer to the fdt
125 * r4: 0
126 * r5: 0
127 * r6: epapr magic
128 * r7: size of IMA in bytes
129 * r8: 0
130 * r9: 0
131 */
132 env->gpr[1] = (16<<20) - 8;
133 /* Provide a device-tree. */
134 env->gpr[3] = bi->fdt;
135 env->nip = bi->bootstrap_pc;
136
137 /* Create a mapping for the kernel. */
138 mmubooke_create_initial_mapping(env, 0, 0);
139 env->gpr[6] = tswap32(EPAPR_MAGIC);
140 env->gpr[7] = bi->ima_size;
141}
142
143#define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
a8170e5e 144static int xilinx_load_device_tree(hwaddr addr,
2c50e26e 145 uint32_t ramsize,
a8170e5e
AK
146 hwaddr initrd_base,
147 hwaddr initrd_size,
2c50e26e
EI
148 const char *kernel_cmdline)
149{
150 char *path;
151 int fdt_size;
daf285b6 152 void *fdt = NULL;
2c50e26e 153 int r;
daf285b6 154 const char *dtb_filename;
2c50e26e 155
daf285b6
EV
156 dtb_filename = qemu_opt_get(qemu_get_machine_opts(), "dtb");
157 if (dtb_filename) {
158 fdt = load_device_tree(dtb_filename, &fdt_size);
159 if (!fdt) {
160 error_report("Error while loading device tree file '%s'",
161 dtb_filename);
2c50e26e 162 }
daf285b6
EV
163 } else {
164 /* Try the local "ppc.dtb" override. */
165 fdt = load_device_tree("ppc.dtb", &fdt_size);
3b2e3dc9 166 if (!fdt) {
daf285b6
EV
167 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
168 if (path) {
169 fdt = load_device_tree(path, &fdt_size);
170 g_free(path);
171 }
3b2e3dc9 172 }
2c50e26e 173 }
daf285b6
EV
174 if (!fdt) {
175 return 0;
176 }
0658aa9c
EI
177
178 r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
179 initrd_base);
180 if (r < 0) {
181 error_report("couldn't set /chosen/linux,initrd-start");
182 }
183
184 r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
185 (initrd_base + initrd_size));
186 if (r < 0) {
187 error_report("couldn't set /chosen/linux,initrd-end");
188 }
189
5a4348d1 190 r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
2c50e26e
EI
191 if (r < 0)
192 fprintf(stderr, "couldn't set /chosen/bootargs\n");
e1fe50dc 193 cpu_physical_memory_write(addr, fdt, fdt_size);
2c50e26e
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194 return fdt_size;
195}
196
3ef96221 197static void virtex_init(MachineState *machine)
2c50e26e 198{
3ef96221
MA
199 ram_addr_t ram_size = machine->ram_size;
200 const char *cpu_model = machine->cpu_model;
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 */
217 if (cpu_model == NULL) {
218 cpu_model = "440-Xilinx";
219 }
220
68281699
AF
221 cpu = ppc440_init_xilinx(&ram_size, 1, cpu_model, 400000000);
222 env = &cpu->env;
f8031482 223 qemu_register_reset(main_cpu_reset, cpu);
2c50e26e 224
2c9b15ca 225 memory_region_init_ram(phys_ram, NULL, "ram", ram_size);
c5705a77 226 vmstate_register_ram_global(phys_ram);
333b13fc 227 memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
2c50e26e 228
2c50e26e 229 dinfo = drive_get(IF_PFLASH, 0, 0);
81cce07e 230 pflash_cfi01_register(PFLASH_BASEADDR, NULL, "virtex.flash", FLASH_SIZE,
2c50e26e
EI
231 dinfo ? dinfo->bdrv : NULL, (64 * 1024),
232 FLASH_SIZE >> 16,
01e0451a 233 1, 0x89, 0x18, 0x0000, 0x0, 1);
2c50e26e
EI
234
235 cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
13c9bfbf
PC
236 dev = qdev_create(NULL, "xlnx.xps-intc");
237 qdev_prop_set_uint32(dev, "kind-of-intr", 0);
238 qdev_init_nofail(dev);
239 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
240 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, cpu_irq[0]);
2c50e26e
EI
241 for (i = 0; i < 32; i++) {
242 irq[i] = qdev_get_gpio_in(dev, i);
243 }
244
81cce07e
PC
245 serial_mm_init(address_space_mem, UART16550_BASEADDR, 2, irq[UART16550_IRQ],
246 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN);
2c50e26e
EI
247
248 /* 2 timers at irq 2 @ 62 Mhz. */
29873712
PC
249 dev = qdev_create(NULL, "xlnx.xps-timer");
250 qdev_prop_set_uint32(dev, "one-timer-only", 0);
251 qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000);
252 qdev_init_nofail(dev);
253 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
254 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);
2c50e26e
EI
255
256 if (kernel_filename) {
257 uint64_t entry, low, high;
a8170e5e 258 hwaddr boot_offset;
2c50e26e
EI
259
260 /* Boots a kernel elf binary. */
261 kernel_size = load_elf(kernel_filename, NULL, NULL,
262 &entry, &low, &high, 1, ELF_MACHINE, 0);
2c50e26e
EI
263 boot_info.bootstrap_pc = entry & 0x00ffffff;
264
265 if (kernel_size < 0) {
266 boot_offset = 0x1200000;
267 /* If we failed loading ELF's try a raw image. */
268 kernel_size = load_image_targphys(kernel_filename,
269 boot_offset,
270 ram_size);
271 boot_info.bootstrap_pc = boot_offset;
272 high = boot_info.bootstrap_pc + kernel_size + 8192;
273 }
274
275 boot_info.ima_size = kernel_size;
276
0658aa9c 277 /* Load initrd. */
3ef96221 278 if (machine->initrd_filename) {
0658aa9c 279 initrd_base = high = ROUND_UP(high, 4);
3ef96221 280 initrd_size = load_image_targphys(machine->initrd_filename,
0658aa9c
EI
281 high, ram_size - high);
282
283 if (initrd_size < 0) {
284 error_report("couldn't load ram disk '%s'",
3ef96221 285 machine->initrd_filename);
0658aa9c
EI
286 exit(1);
287 }
288 high = ROUND_UP(high + initrd_size, 4);
289 }
290
2c50e26e
EI
291 /* Provide a device-tree. */
292 boot_info.fdt = high + (8192 * 2);
293 boot_info.fdt &= ~8191;
0658aa9c
EI
294
295 xilinx_load_device_tree(boot_info.fdt, ram_size,
296 initrd_base, initrd_size,
297 kernel_cmdline);
2c50e26e
EI
298 }
299 env->load_info = &boot_info;
300}
301
302static QEMUMachine virtex_machine = {
303 .name = "virtex-ml507",
304 .desc = "Xilinx Virtex ML507 reference design",
305 .init = virtex_init,
306};
307
308static void virtex_machine_init(void)
309{
310 qemu_register_machine(&virtex_machine);
311}
312
313machine_init(virtex_machine_init);
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