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CommitLineData
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
58static 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 68static 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
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85 tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
86 tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
87 tlb->PID = 0;
88}
89
68281699
AF
90static 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
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116}
117
118static 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));
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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 146static 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
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196 return fdt_size;
197}
198
3ef96221 199static 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;
f8031482 224 qemu_register_reset(main_cpu_reset, cpu);
2c50e26e 225
e938ba0c 226 memory_region_allocate_system_memory(phys_ram, NULL, "ram", ram_size);
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,
4be74634 231 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
fa1d36df 232 (64 * 1024), 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,
7ef295ea
PC
262 &entry, &low, &high, 1, PPC_ELF_MACHINE,
263 0, 0);
2c50e26e
EI
264 boot_info.bootstrap_pc = entry & 0x00ffffff;
265
266 if (kernel_size < 0) {
267 boot_offset = 0x1200000;
268 /* If we failed loading ELF's try a raw image. */
269 kernel_size = load_image_targphys(kernel_filename,
270 boot_offset,
271 ram_size);
272 boot_info.bootstrap_pc = boot_offset;
273 high = boot_info.bootstrap_pc + kernel_size + 8192;
274 }
275
276 boot_info.ima_size = kernel_size;
277
0658aa9c 278 /* Load initrd. */
3ef96221 279 if (machine->initrd_filename) {
0658aa9c 280 initrd_base = high = ROUND_UP(high, 4);
3ef96221 281 initrd_size = load_image_targphys(machine->initrd_filename,
0658aa9c
EI
282 high, ram_size - high);
283
284 if (initrd_size < 0) {
285 error_report("couldn't load ram disk '%s'",
3ef96221 286 machine->initrd_filename);
0658aa9c
EI
287 exit(1);
288 }
289 high = ROUND_UP(high + initrd_size, 4);
290 }
291
2c50e26e
EI
292 /* Provide a device-tree. */
293 boot_info.fdt = high + (8192 * 2);
294 boot_info.fdt &= ~8191;
0658aa9c
EI
295
296 xilinx_load_device_tree(boot_info.fdt, ram_size,
297 initrd_base, initrd_size,
298 kernel_cmdline);
2c50e26e
EI
299 }
300 env->load_info = &boot_info;
301}
302
e264d29d 303static void virtex_machine_init(MachineClass *mc)
2c50e26e 304{
e264d29d
EH
305 mc->desc = "Xilinx Virtex ML507 reference design";
306 mc->init = virtex_init;
2c50e26e
EI
307}
308
e264d29d 309DEFINE_MACHINE("virtex-ml507", virtex_machine_init)