![[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"
37:
38: #include "ppc.h"
39: #include "ppc4xx.h"
40: #include "ppc440.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. */
59: static void mmubooke_create_initial_mapping(CPUState *env,
60: target_ulong va,
61: target_phys_addr_t pa)
62: {
63: ppcemb_tlb_t *tlb = &env->tlb[0].tlbe;
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:
72: tlb = &env->tlb[1].tlbe;
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:
81: static CPUState *ppc440_init_xilinx(ram_addr_t *ram_size,
82: int do_init,
83: const char *cpu_model,
84: clk_setup_t *cpu_clk, clk_setup_t *tb_clk,
85: uint32_t sysclk)
86: {
87: CPUState *env;
88: qemu_irq *irqs;
89:
90: env = cpu_init(cpu_model);
91: if (!env) {
92: fprintf(stderr, "Unable to initialize CPU!\n");
93: exit(1);
94: }
95:
96: cpu_clk->cb = NULL; /* We don't care about CPU clock frequency changes */
97: cpu_clk->opaque = env;
98: /* Set time-base frequency to sysclk */
99: tb_clk->cb = ppc_emb_timers_init(env, sysclk, PPC_INTERRUPT_DECR);
100: tb_clk->opaque = env;
101:
102: ppc_dcr_init(env, NULL, NULL);
103:
104: /* interrupt controller */
105: irqs = qemu_mallocz(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
106: irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
107: irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
108: ppcuic_init(env, irqs, 0x0C0, 0, 1);
109: return env;
110: }
111:
112: static void main_cpu_reset(void *opaque)
113: {
114: CPUState *env = opaque;
115: struct boot_info *bi = env->load_info;
116:
117: cpu_reset(env);
118: /* Linux Kernel Parameters (passing device tree):
119: * r3: pointer to the fdt
120: * r4: 0
121: * r5: 0
122: * r6: epapr magic
123: * r7: size of IMA in bytes
124: * r8: 0
125: * r9: 0
126: */
127: env->gpr[1] = (16<<20) - 8;
128: /* Provide a device-tree. */
129: env->gpr[3] = bi->fdt;
130: env->nip = bi->bootstrap_pc;
131:
132: /* Create a mapping for the kernel. */
133: mmubooke_create_initial_mapping(env, 0, 0);
134: env->gpr[6] = tswap32(EPAPR_MAGIC);
135: env->gpr[7] = bi->ima_size;
136: }
137:
138: #define BINARY_DEVICE_TREE_FILE "virtex-ml507.dtb"
139: static int xilinx_load_device_tree(target_phys_addr_t addr,
140: uint32_t ramsize,
141: target_phys_addr_t initrd_base,
142: target_phys_addr_t initrd_size,
143: const char *kernel_cmdline)
144: {
145: char *path;
146: int fdt_size;
147: #ifdef CONFIG_FDT
148: void *fdt;
149: int r;
150:
151: /* Try the local "ppc.dtb" override. */
152: fdt = load_device_tree("ppc.dtb", &fdt_size);
153: if (!fdt) {
154: path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
155: if (path) {
156: fdt = load_device_tree(path, &fdt_size);
157: qemu_free(path);
158: }
159: if (!fdt) {
160: return 0;
161: }
162: }
163:
164: r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
165: if (r < 0)
166: fprintf(stderr, "couldn't set /chosen/bootargs\n");
167: cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
168: #else
169: /* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
170: to the kernel. */
171: fdt_size = load_image_targphys("ppc.dtb", addr, 0x10000);
172: if (fdt_size < 0) {
173: path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
174: if (path) {
175: fdt_size = load_image_targphys(path, addr, 0x10000);
176: qemu_free(path);
177: }
178: }
179:
180: if (kernel_cmdline) {
181: fprintf(stderr,
182: "Warning: missing libfdt, cannot pass cmdline to kernel!\n");
183: }
184: #endif
185: return fdt_size;
186: }
187:
188: static void virtex_init(ram_addr_t ram_size,
189: const char *boot_device,
190: const char *kernel_filename,
191: const char *kernel_cmdline,
192: const char *initrd_filename, const char *cpu_model)
193: {
194: DeviceState *dev;
195: CPUState *env;
196: target_phys_addr_t ram_base = 0;
197: DriveInfo *dinfo;
198: ram_addr_t phys_ram;
199: ram_addr_t phys_flash;
200: qemu_irq irq[32], *cpu_irq;
201: clk_setup_t clk_setup[7];
202: int kernel_size;
203: int i;
204:
205: /* init CPUs */
206: if (cpu_model == NULL) {
207: cpu_model = "440-Xilinx";
208: }
209:
210: memset(clk_setup, 0, sizeof(clk_setup));
211: env = ppc440_init_xilinx(&ram_size, 1, cpu_model, &clk_setup[0],
212: &clk_setup[1], 400000000);
213: qemu_register_reset(main_cpu_reset, env);
214:
215: phys_ram = qemu_ram_alloc(NULL, "ram", ram_size);
216: cpu_register_physical_memory(ram_base, ram_size, phys_ram | IO_MEM_RAM);
217:
218: phys_flash = qemu_ram_alloc(NULL, "virtex.flash", FLASH_SIZE);
219: dinfo = drive_get(IF_PFLASH, 0, 0);
220: pflash_cfi01_register(0xfc000000, phys_flash,
221: dinfo ? dinfo->bdrv : NULL, (64 * 1024),
222: FLASH_SIZE >> 16,
223: 1, 0x89, 0x18, 0x0000, 0x0, 1);
224:
225: cpu_irq = (qemu_irq *) &env->irq_inputs[PPC40x_INPUT_INT];
226: dev = xilinx_intc_create(0x81800000, cpu_irq[0], 0);
227: for (i = 0; i < 32; i++) {
228: irq[i] = qdev_get_gpio_in(dev, i);
229: }
230:
231: serial_mm_init(0x83e01003ULL, 2, irq[9], 115200, serial_hds[0], 1, 0);
232:
233: /* 2 timers at irq 2 @ 62 Mhz. */
234: xilinx_timer_create(0x83c00000, irq[3], 2, 62 * 1000000);
235:
236: if (kernel_filename) {
237: uint64_t entry, low, high;
238: target_phys_addr_t boot_offset;
239:
240: /* Boots a kernel elf binary. */
241: kernel_size = load_elf(kernel_filename, NULL, NULL,
242: &entry, &low, &high, 1, ELF_MACHINE, 0);
243: boot_info.bootstrap_pc = entry & 0x00ffffff;
244:
245: if (kernel_size < 0) {
246: boot_offset = 0x1200000;
247: /* If we failed loading ELF's try a raw image. */
248: kernel_size = load_image_targphys(kernel_filename,
249: boot_offset,
250: ram_size);
251: boot_info.bootstrap_pc = boot_offset;
252: high = boot_info.bootstrap_pc + kernel_size + 8192;
253: }
254:
255: boot_info.ima_size = kernel_size;
256:
257: /* Provide a device-tree. */
258: boot_info.fdt = high + (8192 * 2);
259: boot_info.fdt &= ~8191;
260: xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline);
261: }
262: env->load_info = &boot_info;
263: }
264:
265: static QEMUMachine virtex_machine = {
266: .name = "virtex-ml507",
267: .desc = "Xilinx Virtex ML507 reference design",
268: .init = virtex_init,
269: };
270:
271: static void virtex_machine_init(void)
272: {
273: qemu_register_machine(&virtex_machine);
274: }
275:
276: machine_init(virtex_machine_init);
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.