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 "hw/sysbus.h"
27 #include "hw/char/serial.h"
28 #include "hw/block/flash.h"
29 #include "sysemu/sysemu.h"
30 #include "hw/devices.h"
31 #include "hw/boards.h"
32 #include "sysemu/device_tree.h"
33 #include "hw/loader.h"
36 #include "exec/address-spaces.h"
38 #include "hw/ppc/ppc.h"
39 #include "hw/ppc/ppc4xx.h"
42 #include "sysemu/blockdev.h"
43 #include "hw/xilinx.h"
45 #define EPAPR_MAGIC (0x45504150)
46 #define FLASH_SIZE (16 * 1024 * 1024)
48 static struct boot_info
50 uint32_t bootstrap_pc;
57 /* Create reset TLB entries for BookE, spanning the 32bit addr space. */
58 static void mmubooke_create_initial_mapping(CPUPPCState *env,
62 ppcemb_tlb_t *tlb = &env->tlb.tlbe[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;
71 tlb = &env->tlb.tlbe[1];
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;
80 static PowerPCCPU *ppc440_init_xilinx(ram_addr_t *ram_size,
82 const char *cpu_model,
89 cpu = cpu_ppc_init(cpu_model);
91 fprintf(stderr, "Unable to initialize CPU!\n");
96 ppc_booke_timers_init(cpu, sysclk, 0/* no flags */);
98 ppc_dcr_init(env, NULL, NULL);
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);
108 static void main_cpu_reset(void *opaque)
110 PowerPCCPU *cpu = opaque;
111 CPUPPCState *env = &cpu->env;
112 struct boot_info *bi = env->load_info;
115 /* Linux Kernel Parameters (passing device tree):
116 * r3: pointer to the fdt
120 * r7: size of IMA in bytes
124 env->gpr[1] = (16<<20) - 8;
125 /* Provide a device-tree. */
126 env->gpr[3] = bi->fdt;
127 env->nip = bi->bootstrap_pc;
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;
135 #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
136 static int xilinx_load_device_tree(hwaddr addr,
140 const char *kernel_cmdline)
147 /* Try the local "ppc.dtb" override. */
148 fdt = load_device_tree("ppc.dtb", &fdt_size);
150 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
152 fdt = load_device_tree(path, &fdt_size);
160 r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
162 fprintf(stderr, "couldn't set /chosen/bootargs\n");
163 cpu_physical_memory_write(addr, fdt, fdt_size);
167 static void virtex_init(QEMUMachineInitArgs *args)
169 ram_addr_t ram_size = args->ram_size;
170 const char *cpu_model = args->cpu_model;
171 const char *kernel_filename = args->kernel_filename;
172 const char *kernel_cmdline = args->kernel_cmdline;
173 MemoryRegion *address_space_mem = get_system_memory();
179 MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
180 qemu_irq irq[32], *cpu_irq;
185 if (cpu_model == NULL) {
186 cpu_model = "440-Xilinx";
189 cpu = ppc440_init_xilinx(&ram_size, 1, cpu_model, 400000000);
191 qemu_register_reset(main_cpu_reset, cpu);
193 memory_region_init_ram(phys_ram, NULL, "ram", ram_size);
194 vmstate_register_ram_global(phys_ram);
195 memory_region_add_subregion(address_space_mem, ram_base, phys_ram);
197 dinfo = drive_get(IF_PFLASH, 0, 0);
198 pflash_cfi01_register(0xfc000000, NULL, "virtex.flash", FLASH_SIZE,
199 dinfo ? dinfo->bdrv : NULL, (64 * 1024),
201 1, 0x89, 0x18, 0x0000, 0x0, 1);
203 cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
204 dev = xilinx_intc_create(0x81800000, cpu_irq[0], 0);
205 for (i = 0; i < 32; i++) {
206 irq[i] = qdev_get_gpio_in(dev, i);
209 serial_mm_init(address_space_mem, 0x83e01003ULL, 2, irq[9], 115200,
210 serial_hds[0], DEVICE_LITTLE_ENDIAN);
212 /* 2 timers at irq 2 @ 62 Mhz. */
213 xilinx_timer_create(0x83c00000, irq[3], 0, 62 * 1000000);
215 if (kernel_filename) {
216 uint64_t entry, low, high;
219 /* Boots a kernel elf binary. */
220 kernel_size = load_elf(kernel_filename, NULL, NULL,
221 &entry, &low, &high, 1, ELF_MACHINE, 0);
222 boot_info.bootstrap_pc = entry & 0x00ffffff;
224 if (kernel_size < 0) {
225 boot_offset = 0x1200000;
226 /* If we failed loading ELF's try a raw image. */
227 kernel_size = load_image_targphys(kernel_filename,
230 boot_info.bootstrap_pc = boot_offset;
231 high = boot_info.bootstrap_pc + kernel_size + 8192;
234 boot_info.ima_size = kernel_size;
236 /* Provide a device-tree. */
237 boot_info.fdt = high + (8192 * 2);
238 boot_info.fdt &= ~8191;
239 xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline);
241 env->load_info = &boot_info;
244 static QEMUMachine virtex_machine = {
245 .name = "virtex-ml507",
246 .desc = "Xilinx Virtex ML507 reference design",
248 DEFAULT_MACHINE_OPTIONS,
251 static void virtex_machine_init(void)
253 qemu_register_machine(&virtex_machine);
256 machine_init(virtex_machine_init);