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