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
33 #include "device_tree.h"
46 #define EPAPR_MAGIC (0x45504150)
47 #define FLASH_SIZE (16 * 1024 * 1024)
49 static struct boot_info
51 uint32_t bootstrap_pc;
58 /* Create reset TLB entries for BookE, spanning the 32bit addr space. */
59 static void mmubooke_create_initial_mapping(CPUState *env,
61 target_phys_addr_t pa)
63 ppcemb_tlb_t *tlb = &env->tlb[0].tlbe;
66 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
67 tlb->size = 1 << 31; /* up to 0x80000000 */
68 tlb->EPN = va & TARGET_PAGE_MASK;
69 tlb->RPN = pa & TARGET_PAGE_MASK;
72 tlb = &env->tlb[1].tlbe;
74 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
75 tlb->size = 1 << 31; /* up to 0xffffffff */
76 tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
77 tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
81 static CPUState *ppc440_init_xilinx(ram_addr_t *ram_size,
83 const char *cpu_model,
84 clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
91 env = cpu_init(cpu_model);
93 fprintf(stderr, "Unable to initialize CPU!\n");
97 cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
98 cpu_clk->opaque = env;
99 /* Set time-base frequency to sysclk */
100 tb_clk->cb = ppc_emb_timers_init(env, sysclk, PPC_INTERRUPT_DECR);
101 tb_clk->opaque = env;
103 ppc_dcr_init(env, NULL, NULL);
105 /* interrupt controller */
106 irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
107 irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
108 irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
109 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
113 static void main_cpu_reset(void *opaque)
115 CPUState *env = opaque;
116 struct boot_info *bi = env->load_info;
119 /* Linux Kernel Parameters (passing device tree):
120 * r3: pointer to the fdt
124 * r7: size of IMA in bytes
128 env->gpr[1] = (16<<20) - 8;
129 /* Provide a device-tree. */
130 env->gpr[3] = bi->fdt;
131 env->nip = bi->bootstrap_pc;
133 /* Create a mapping for the kernel. */
134 mmubooke_create_initial_mapping(env, 0, 0);
135 env->gpr[6] = tswap32(EPAPR_MAGIC);
136 env->gpr[7] = bi->ima_size;
139 #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
140 static int xilinx_load_device_tree(target_phys_addr_t addr,
142 target_phys_addr_t initrd_base,
143 target_phys_addr_t initrd_size,
144 const char *kernel_cmdline)
152 /* Try the local "ppc.dtb" override. */
153 fdt = load_device_tree("ppc.dtb", &fdt_size);
155 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
157 fdt = load_device_tree(path, &fdt_size);
165 r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
167 fprintf(stderr, "couldn't set /chosen/bootargs\n");
168 cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
170 /* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
172 fdt_size = load_image_targphys("ppc.dtb", addr, 0x10000);
174 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
176 fdt_size = load_image_targphys(path, addr, 0x10000);
181 if (kernel_cmdline) {
183 "Warning: missing libfdt, cannot pass cmdline to kernel!\n");
189 static void virtex_init(ram_addr_t ram_size,
190 const char *boot_device,
191 const char *kernel_filename,
192 const char *kernel_cmdline,
193 const char *initrd_filename, const char *cpu_model)
197 target_phys_addr_t ram_base = 0;
200 ram_addr_t phys_flash;
201 qemu_irq irq[32], *cpu_irq;
202 clk_setup_t clk_setup[7];
207 if (cpu_model == NULL) {
208 cpu_model = "440-Xilinx";
211 memset(clk_setup, 0, sizeof(clk_setup));
212 env = ppc440_init_xilinx(&ram_size, 1, cpu_model, &clk_setup[0],
213 &clk_setup[1], 400000000);
214 qemu_register_reset(main_cpu_reset, env);
216 phys_ram = qemu_ram_alloc(NULL, "ram", ram_size);
217 cpu_register_physical_memory(ram_base, ram_size, phys_ram | IO_MEM_RAM);
219 phys_flash = qemu_ram_alloc(NULL, "virtex.flash", FLASH_SIZE);
220 dinfo = drive_get(IF_PFLASH, 0, 0);
221 pflash_cfi01_register(0xfc000000, phys_flash,
222 dinfo ? dinfo->bdrv : NULL, (64 * 1024),
224 1, 0x89, 0x18, 0x0000, 0x0, 1);
226 cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
227 dev = xilinx_intc_create(0x81800000, cpu_irq[0], 0);
228 for (i = 0; i < 32; i++) {
229 irq[i] = qdev_get_gpio_in(dev, i);
232 serial_mm_init(0x83e01003ULL, 2, irq[9], 115200, serial_hds[0], 1, 0);
234 /* 2 timers at irq 2 @ 62 Mhz. */
235 xilinx_timer_create(0x83c00000, irq[3], 2, 62 * 1000000);
237 if (kernel_filename) {
238 uint64_t entry, low, high;
240 target_phys_addr_t boot_offset;
242 /* Boots a kernel elf binary. */
243 kernel_size = load_elf(kernel_filename, NULL, NULL,
244 &entry, &low, &high, 1, ELF_MACHINE, 0);
246 boot_info.bootstrap_pc = entry & 0x00ffffff;
248 if (kernel_size < 0) {
249 boot_offset = 0x1200000;
250 /* If we failed loading ELF's try a raw image. */
251 kernel_size = load_image_targphys(kernel_filename,
254 boot_info.bootstrap_pc = boot_offset;
255 high = boot_info.bootstrap_pc + kernel_size + 8192;
258 boot_info.ima_size = kernel_size;
260 /* Provide a device-tree. */
261 boot_info.fdt = high + (8192 * 2);
262 boot_info.fdt &= ~8191;
263 xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline);
265 env->load_info = &boot_info;
268 static QEMUMachine virtex_machine = {
269 .name = "virtex-ml507",
270 .desc = "Xilinx Virtex ML507 reference design",
274 static void virtex_machine_init(void)
276 qemu_register_machine(&virtex_machine);
279 machine_init(virtex_machine_init);