root / hw / ppc / virtex_ml507.c @ 0d09e41a
History | View | Annotate | Download (8.5 kB)
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 |
|
25 |
#include "hw/sysbus.h" |
26 |
#include "hw/hw.h" |
27 |
#include "hw/char/serial.h" |
28 |
#include "hw/block/flash.h" |
29 |
#include "sysemu/sysemu.h" |
30 |
#include "hw/arm/devices.h" |
31 |
#include "hw/boards.h" |
32 |
#include "sysemu/device_tree.h" |
33 |
#include "hw/loader.h" |
34 |
#include "elf.h" |
35 |
#include "qemu/log.h" |
36 |
#include "exec/address-spaces.h" |
37 |
|
38 |
#include "hw/ppc/ppc.h" |
39 |
#include "hw/ppc/ppc4xx.h" |
40 |
#include "hw/ppc405.h" |
41 |
|
42 |
#include "sysemu/blockdev.h" |
43 |
#include "hw/xilinx.h" |
44 |
|
45 |
#define EPAPR_MAGIC (0x45504150) |
46 |
#define FLASH_SIZE (16 * 1024 * 1024) |
47 |
|
48 |
static struct boot_info |
49 |
{ |
50 |
uint32_t bootstrap_pc; |
51 |
uint32_t cmdline; |
52 |
uint32_t fdt; |
53 |
uint32_t ima_size; |
54 |
void *vfdt;
|
55 |
} boot_info; |
56 |
|
57 |
/* Create reset TLB entries for BookE, spanning the 32bit addr space. */
|
58 |
static void mmubooke_create_initial_mapping(CPUPPCState *env, |
59 |
target_ulong va, |
60 |
hwaddr pa) |
61 |
{ |
62 |
ppcemb_tlb_t *tlb = &env->tlb.tlbe[0];
|
63 |
|
64 |
tlb->attr = 0;
|
65 |
tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
|
66 |
tlb->size = 1 << 31; /* up to 0x80000000 */ |
67 |
tlb->EPN = va & TARGET_PAGE_MASK; |
68 |
tlb->RPN = pa & TARGET_PAGE_MASK; |
69 |
tlb->PID = 0;
|
70 |
|
71 |
tlb = &env->tlb.tlbe[1];
|
72 |
tlb->attr = 0;
|
73 |
tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
|
74 |
tlb->size = 1 << 31; /* up to 0xffffffff */ |
75 |
tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
|
76 |
tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
|
77 |
tlb->PID = 0;
|
78 |
} |
79 |
|
80 |
static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
|
81 |
int do_init,
|
82 |
const char *cpu_model, |
83 |
uint32_t sysclk) |
84 |
{ |
85 |
PowerPCCPU *cpu; |
86 |
CPUPPCState *env; |
87 |
qemu_irq *irqs; |
88 |
|
89 |
cpu = cpu_ppc_init(cpu_model); |
90 |
if (cpu == NULL) { |
91 |
fprintf(stderr, "Unable to initialize CPU!\n");
|
92 |
exit(1);
|
93 |
} |
94 |
env = &cpu->env; |
95 |
|
96 |
ppc_booke_timers_init(cpu, sysclk, 0/* no flags */); |
97 |
|
98 |
ppc_dcr_init(env, NULL, NULL); |
99 |
|
100 |
/* interrupt controller */
|
101 |
irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
|
102 |
irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT]; |
103 |
irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT]; |
104 |
ppcuic_init(env, irqs, 0x0C0, 0, 1); |
105 |
return cpu;
|
106 |
} |
107 |
|
108 |
static void main_cpu_reset(void *opaque) |
109 |
{ |
110 |
PowerPCCPU *cpu = opaque; |
111 |
CPUPPCState *env = &cpu->env; |
112 |
struct boot_info *bi = env->load_info;
|
113 |
|
114 |
cpu_reset(CPU(cpu)); |
115 |
/* Linux Kernel Parameters (passing device tree):
|
116 |
* r3: pointer to the fdt
|
117 |
* r4: 0
|
118 |
* r5: 0
|
119 |
* r6: epapr magic
|
120 |
* r7: size of IMA in bytes
|
121 |
* r8: 0
|
122 |
* r9: 0
|
123 |
*/
|
124 |
env->gpr[1] = (16<<20) - 8; |
125 |
/* Provide a device-tree. */
|
126 |
env->gpr[3] = bi->fdt;
|
127 |
env->nip = bi->bootstrap_pc; |
128 |
|
129 |
/* Create a mapping for the kernel. */
|
130 |
mmubooke_create_initial_mapping(env, 0, 0); |
131 |
env->gpr[6] = tswap32(EPAPR_MAGIC);
|
132 |
env->gpr[7] = bi->ima_size;
|
133 |
} |
134 |
|
135 |
#define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb" |
136 |
static int xilinx_load_device_tree(hwaddr addr, |
137 |
uint32_t ramsize, |
138 |
hwaddr initrd_base, |
139 |
hwaddr initrd_size, |
140 |
const char *kernel_cmdline) |
141 |
{ |
142 |
char *path;
|
143 |
int fdt_size;
|
144 |
#ifdef CONFIG_FDT
|
145 |
void *fdt;
|
146 |
int r;
|
147 |
|
148 |
/* Try the local "ppc.dtb" override. */
|
149 |
fdt = load_device_tree("ppc.dtb", &fdt_size);
|
150 |
if (!fdt) {
|
151 |
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
152 |
if (path) {
|
153 |
fdt = load_device_tree(path, &fdt_size); |
154 |
g_free(path); |
155 |
} |
156 |
if (!fdt) {
|
157 |
return 0; |
158 |
} |
159 |
} |
160 |
|
161 |
r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline); |
162 |
if (r < 0) |
163 |
fprintf(stderr, "couldn't set /chosen/bootargs\n");
|
164 |
cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
|
165 |
#else
|
166 |
/* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
|
167 |
to the kernel. */
|
168 |
fdt_size = load_image_targphys("ppc.dtb", addr, 0x10000); |
169 |
if (fdt_size < 0) { |
170 |
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
171 |
if (path) {
|
172 |
fdt_size = load_image_targphys(path, addr, 0x10000);
|
173 |
g_free(path); |
174 |
} |
175 |
} |
176 |
|
177 |
if (kernel_cmdline) {
|
178 |
fprintf(stderr, |
179 |
"Warning: missing libfdt, cannot pass cmdline to kernel!\n");
|
180 |
} |
181 |
#endif
|
182 |
return fdt_size;
|
183 |
} |
184 |
|
185 |
static void virtex_init(QEMUMachineInitArgs *args) |
186 |
{ |
187 |
ram_addr_t ram_size = args->ram_size; |
188 |
const char *cpu_model = args->cpu_model; |
189 |
const char *kernel_filename = args->kernel_filename; |
190 |
const char *kernel_cmdline = args->kernel_cmdline; |
191 |
MemoryRegion *address_space_mem = get_system_memory(); |
192 |
DeviceState *dev; |
193 |
PowerPCCPU *cpu; |
194 |
CPUPPCState *env; |
195 |
hwaddr ram_base = 0;
|
196 |
DriveInfo *dinfo; |
197 |
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
|
198 |
qemu_irq irq[32], *cpu_irq;
|
199 |
int kernel_size;
|
200 |
int i;
|
201 |
|
202 |
/* init CPUs */
|
203 |
if (cpu_model == NULL) { |
204 |
cpu_model = "440-Xilinx";
|
205 |
} |
206 |
|
207 |
cpu = ppc440_init_xilinx(&ram_size, 1, cpu_model, 400000000); |
208 |
env = &cpu->env; |
209 |
qemu_register_reset(main_cpu_reset, cpu); |
210 |
|
211 |
memory_region_init_ram(phys_ram, "ram", ram_size);
|
212 |
vmstate_register_ram_global(phys_ram); |
213 |
memory_region_add_subregion(address_space_mem, ram_base, phys_ram); |
214 |
|
215 |
dinfo = drive_get(IF_PFLASH, 0, 0); |
216 |
pflash_cfi01_register(0xfc000000, NULL, "virtex.flash", FLASH_SIZE, |
217 |
dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
218 |
FLASH_SIZE >> 16,
|
219 |
1, 0x89, 0x18, 0x0000, 0x0, 1); |
220 |
|
221 |
cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT]; |
222 |
dev = xilinx_intc_create(0x81800000, cpu_irq[0], 0); |
223 |
for (i = 0; i < 32; i++) { |
224 |
irq[i] = qdev_get_gpio_in(dev, i); |
225 |
} |
226 |
|
227 |
serial_mm_init(address_space_mem, 0x83e01003ULL, 2, irq[9], 115200, |
228 |
serial_hds[0], DEVICE_LITTLE_ENDIAN);
|
229 |
|
230 |
/* 2 timers at irq 2 @ 62 Mhz. */
|
231 |
xilinx_timer_create(0x83c00000, irq[3], 0, 62 * 1000000); |
232 |
|
233 |
if (kernel_filename) {
|
234 |
uint64_t entry, low, high; |
235 |
hwaddr boot_offset; |
236 |
|
237 |
/* Boots a kernel elf binary. */
|
238 |
kernel_size = load_elf(kernel_filename, NULL, NULL, |
239 |
&entry, &low, &high, 1, ELF_MACHINE, 0); |
240 |
boot_info.bootstrap_pc = entry & 0x00ffffff;
|
241 |
|
242 |
if (kernel_size < 0) { |
243 |
boot_offset = 0x1200000;
|
244 |
/* If we failed loading ELF's try a raw image. */
|
245 |
kernel_size = load_image_targphys(kernel_filename, |
246 |
boot_offset, |
247 |
ram_size); |
248 |
boot_info.bootstrap_pc = boot_offset; |
249 |
high = boot_info.bootstrap_pc + kernel_size + 8192;
|
250 |
} |
251 |
|
252 |
boot_info.ima_size = kernel_size; |
253 |
|
254 |
/* Provide a device-tree. */
|
255 |
boot_info.fdt = high + (8192 * 2); |
256 |
boot_info.fdt &= ~8191;
|
257 |
xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline); |
258 |
} |
259 |
env->load_info = &boot_info; |
260 |
} |
261 |
|
262 |
static QEMUMachine virtex_machine = {
|
263 |
.name = "virtex-ml507",
|
264 |
.desc = "Xilinx Virtex ML507 reference design",
|
265 |
.init = virtex_init, |
266 |
DEFAULT_MACHINE_OPTIONS, |
267 |
}; |
268 |
|
269 |
static void virtex_machine_init(void) |
270 |
{ |
271 |
qemu_register_machine(&virtex_machine); |
272 |
} |
273 |
|
274 |
machine_init(virtex_machine_init); |