2 * Model of Xilinx Virtex5 ML507 PPC-440 refdesign.
4 * Copyright (c) 2010 Edgar E. Iglesias.
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
25 #include "qemu/osdep.h"
27 #include "hw/sysbus.h"
29 #include "hw/char/serial.h"
30 #include "hw/block/flash.h"
31 #include "sysemu/sysemu.h"
32 #include "sysemu/qtest.h"
33 #include "hw/devices.h"
34 #include "hw/boards.h"
35 #include "sysemu/device_tree.h"
36 #include "hw/loader.h"
38 #include "qemu/error-report.h"
40 #include "qemu/option.h"
41 #include "exec/address-spaces.h"
43 #include "hw/ppc/ppc.h"
44 #include "hw/ppc/ppc4xx.h"
47 #include "sysemu/block-backend.h"
49 #define EPAPR_MAGIC (0x45504150)
50 #define FLASH_SIZE (16 * 1024 * 1024)
52 #define INTC_BASEADDR 0x81800000
53 #define UART16550_BASEADDR 0x83e01003
54 #define TIMER_BASEADDR 0x83c00000
55 #define PFLASH_BASEADDR 0xfc000000
58 #define UART16550_IRQ 9
60 static struct boot_info
62 uint32_t bootstrap_pc
;
69 /* Create reset TLB entries for BookE, spanning the 32bit addr space. */
70 static void mmubooke_create_initial_mapping(CPUPPCState
*env
,
74 ppcemb_tlb_t
*tlb
= &env
->tlb
.tlbe
[0];
77 tlb
->prot
= PAGE_VALID
| ((PAGE_READ
| PAGE_WRITE
| PAGE_EXEC
) << 4);
78 tlb
->size
= 1U << 31; /* up to 0x80000000 */
79 tlb
->EPN
= va
& TARGET_PAGE_MASK
;
80 tlb
->RPN
= pa
& TARGET_PAGE_MASK
;
83 tlb
= &env
->tlb
.tlbe
[1];
85 tlb
->prot
= PAGE_VALID
| ((PAGE_READ
| PAGE_WRITE
| PAGE_EXEC
) << 4);
86 tlb
->size
= 1U << 31; /* up to 0xffffffff */
87 tlb
->EPN
= 0x80000000 & TARGET_PAGE_MASK
;
88 tlb
->RPN
= 0x80000000 & TARGET_PAGE_MASK
;
92 static PowerPCCPU
*ppc440_init_xilinx(ram_addr_t
*ram_size
,
101 cpu
= POWERPC_CPU(cpu_create(cpu_type
));
104 ppc_booke_timers_init(cpu
, sysclk
, 0/* no flags */);
106 ppc_dcr_init(env
, NULL
, NULL
);
108 /* interrupt controller */
109 irqs
= g_malloc0(sizeof(qemu_irq
) * PPCUIC_OUTPUT_NB
);
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
];
112 ppcuic_init(env
, irqs
, 0x0C0, 0, 1);
116 static void main_cpu_reset(void *opaque
)
118 PowerPCCPU
*cpu
= opaque
;
119 CPUPPCState
*env
= &cpu
->env
;
120 struct boot_info
*bi
= env
->load_info
;
123 /* Linux Kernel Parameters (passing device tree):
124 * r3: pointer to the fdt
128 * r7: size of IMA in bytes
132 env
->gpr
[1] = (16<<20) - 8;
133 /* Provide a device-tree. */
134 env
->gpr
[3] = bi
->fdt
;
135 env
->nip
= bi
->bootstrap_pc
;
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
;
143 #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
144 static int xilinx_load_device_tree(hwaddr addr
,
148 const char *kernel_cmdline
)
154 const char *dtb_filename
;
156 dtb_filename
= qemu_opt_get(qemu_get_machine_opts(), "dtb");
158 fdt
= load_device_tree(dtb_filename
, &fdt_size
);
160 error_report("Error while loading device tree file '%s'",
164 /* Try the local "ppc.dtb" override. */
165 fdt
= load_device_tree("ppc.dtb", &fdt_size
);
167 path
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, BINARY_DEVICE_TREE_FILE
);
169 fdt
= load_device_tree(path
, &fdt_size
);
178 r
= qemu_fdt_setprop_cell(fdt
, "/chosen", "linux,initrd-start",
181 error_report("couldn't set /chosen/linux,initrd-start");
184 r
= qemu_fdt_setprop_cell(fdt
, "/chosen", "linux,initrd-end",
185 (initrd_base
+ initrd_size
));
187 error_report("couldn't set /chosen/linux,initrd-end");
190 r
= qemu_fdt_setprop_string(fdt
, "/chosen", "bootargs", kernel_cmdline
);
192 fprintf(stderr
, "couldn't set /chosen/bootargs\n");
193 cpu_physical_memory_write(addr
, fdt
, fdt_size
);
197 static void virtex_init(MachineState
*machine
)
199 ram_addr_t ram_size
= machine
->ram_size
;
200 const char *kernel_filename
= machine
->kernel_filename
;
201 const char *kernel_cmdline
= machine
->kernel_cmdline
;
202 hwaddr initrd_base
= 0;
204 MemoryRegion
*address_space_mem
= get_system_memory();
210 MemoryRegion
*phys_ram
= g_new(MemoryRegion
, 1);
211 qemu_irq irq
[32], *cpu_irq
;
216 if (!qtest_enabled()) {
217 warn_report("qemu-system-ppcemb is deprecated, "
218 "please use qemu-system-ppc instead.");
223 cpu
= ppc440_init_xilinx(&ram_size
, 1, machine
->cpu_type
, 400000000);
226 if (env
->mmu_model
!= POWERPC_MMU_BOOKE
) {
227 error_report("MMU model %i not supported by this machine",
232 qemu_register_reset(main_cpu_reset
, cpu
);
234 memory_region_allocate_system_memory(phys_ram
, NULL
, "ram", ram_size
);
235 memory_region_add_subregion(address_space_mem
, ram_base
, phys_ram
);
237 dinfo
= drive_get(IF_PFLASH
, 0, 0);
238 pflash_cfi01_register(PFLASH_BASEADDR
, NULL
, "virtex.flash", FLASH_SIZE
,
239 dinfo
? blk_by_legacy_dinfo(dinfo
) : NULL
,
240 (64 * 1024), FLASH_SIZE
>> 16,
241 1, 0x89, 0x18, 0x0000, 0x0, 1);
243 cpu_irq
= (qemu_irq
*) &env
->irq_inputs
[PPC40x_INPUT_INT
];
244 dev
= qdev_create(NULL
, "xlnx.xps-intc");
245 qdev_prop_set_uint32(dev
, "kind-of-intr", 0);
246 qdev_init_nofail(dev
);
247 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, INTC_BASEADDR
);
248 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, cpu_irq
[0]);
249 for (i
= 0; i
< 32; i
++) {
250 irq
[i
] = qdev_get_gpio_in(dev
, i
);
253 serial_mm_init(address_space_mem
, UART16550_BASEADDR
, 2, irq
[UART16550_IRQ
],
254 115200, serial_hd(0), DEVICE_LITTLE_ENDIAN
);
256 /* 2 timers at irq 2 @ 62 Mhz. */
257 dev
= qdev_create(NULL
, "xlnx.xps-timer");
258 qdev_prop_set_uint32(dev
, "one-timer-only", 0);
259 qdev_prop_set_uint32(dev
, "clock-frequency", 62 * 1000000);
260 qdev_init_nofail(dev
);
261 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, TIMER_BASEADDR
);
262 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, irq
[TIMER_IRQ
]);
264 if (kernel_filename
) {
265 uint64_t entry
, low
, high
;
268 /* Boots a kernel elf binary. */
269 kernel_size
= load_elf(kernel_filename
, NULL
, NULL
,
270 &entry
, &low
, &high
, 1, PPC_ELF_MACHINE
,
272 boot_info
.bootstrap_pc
= entry
& 0x00ffffff;
274 if (kernel_size
< 0) {
275 boot_offset
= 0x1200000;
276 /* If we failed loading ELF's try a raw image. */
277 kernel_size
= load_image_targphys(kernel_filename
,
280 boot_info
.bootstrap_pc
= boot_offset
;
281 high
= boot_info
.bootstrap_pc
+ kernel_size
+ 8192;
284 boot_info
.ima_size
= kernel_size
;
287 if (machine
->initrd_filename
) {
288 initrd_base
= high
= ROUND_UP(high
, 4);
289 initrd_size
= load_image_targphys(machine
->initrd_filename
,
290 high
, ram_size
- high
);
292 if (initrd_size
< 0) {
293 error_report("couldn't load ram disk '%s'",
294 machine
->initrd_filename
);
297 high
= ROUND_UP(high
+ initrd_size
, 4);
300 /* Provide a device-tree. */
301 boot_info
.fdt
= high
+ (8192 * 2);
302 boot_info
.fdt
&= ~8191;
304 xilinx_load_device_tree(boot_info
.fdt
, ram_size
,
305 initrd_base
, initrd_size
,
308 env
->load_info
= &boot_info
;
311 static void virtex_machine_init(MachineClass
*mc
)
313 mc
->desc
= "Xilinx Virtex ML507 reference design";
314 mc
->init
= virtex_init
;
315 mc
->default_cpu_type
= POWERPC_CPU_TYPE_NAME("440-xilinx");
318 DEFINE_MACHINE("virtex-ml507", virtex_machine_init
)