Add access control support to qemu bridge helper
[qemu.git] / hw / petalogix_ml605_mmu.c
1 /*
2 * Model of Petalogix linux reference design targeting Xilinx Spartan ml605
3 * board.
4 *
5 * Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
6 * Copyright (c) 2011 PetaLogix
7 * Copyright (c) 2009 Edgar E. Iglesias.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25 * THE SOFTWARE.
26 */
27
28 #include "sysbus.h"
29 #include "hw.h"
30 #include "net.h"
31 #include "flash.h"
32 #include "sysemu.h"
33 #include "devices.h"
34 #include "boards.h"
35 #include "device_tree.h"
36 #include "xilinx.h"
37 #include "loader.h"
38 #include "elf.h"
39 #include "blockdev.h"
40 #include "pc.h"
41 #include "exec-memory.h"
42
43 #include "microblaze_pic_cpu.h"
44 #include "xilinx_axidma.h"
45
46 #define LMB_BRAM_SIZE (128 * 1024)
47 #define FLASH_SIZE (32 * 1024 * 1024)
48
49 static struct
50 {
51 uint32_t bootstrap_pc;
52 uint32_t cmdline;
53 uint32_t fdt;
54 } boot_info;
55
56 static void main_cpu_reset(void *opaque)
57 {
58 CPUState *env = opaque;
59
60 cpu_reset(env);
61 env->regs[5] = boot_info.cmdline;
62 env->regs[7] = boot_info.fdt;
63 env->sregs[SR_PC] = boot_info.bootstrap_pc;
64 env->pvr.regs[10] = 0x0e000000; /* virtex 6 */
65 /* setup pvr to match kernel setting */
66 env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
67 env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
68 env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8);
69 env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
70 env->pvr.regs[4] = 0xc56b8000;
71 env->pvr.regs[5] = 0xc56be000;
72 }
73
74 #define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"
75 static int petalogix_load_device_tree(target_phys_addr_t addr,
76 uint32_t ramsize,
77 target_phys_addr_t initrd_base,
78 target_phys_addr_t initrd_size,
79 const char *kernel_cmdline)
80 {
81 char *path;
82 int fdt_size;
83 #ifdef CONFIG_FDT
84 void *fdt;
85 int r;
86
87 /* Try the local "mb.dtb" override. */
88 fdt = load_device_tree("mb.dtb", &fdt_size);
89 if (!fdt) {
90 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
91 if (path) {
92 fdt = load_device_tree(path, &fdt_size);
93 g_free(path);
94 }
95 if (!fdt) {
96 return 0;
97 }
98 }
99
100 r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
101 if (r < 0) {
102 fprintf(stderr, "couldn't set /chosen/bootargs\n");
103 }
104 cpu_physical_memory_write(addr, (void *)fdt, fdt_size);
105 #else
106 /* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
107 to the kernel. */
108 fdt_size = load_image_targphys("mb.dtb", addr, 0x10000);
109 if (fdt_size < 0) {
110 path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
111 if (path) {
112 fdt_size = load_image_targphys(path, addr, 0x10000);
113 g_free(path);
114 }
115 }
116
117 if (kernel_cmdline) {
118 fprintf(stderr,
119 "Warning: missing libfdt, cannot pass cmdline to kernel!\n");
120 }
121 #endif
122 return fdt_size;
123 }
124
125 static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
126 {
127 return addr - 0x30000000LL;
128 }
129
130 #define MEMORY_BASEADDR 0x50000000
131 #define FLASH_BASEADDR 0x86000000
132 #define INTC_BASEADDR 0x81800000
133 #define TIMER_BASEADDR 0x83c00000
134 #define UART16550_BASEADDR 0x83e00000
135 #define AXIENET_BASEADDR 0x82780000
136 #define AXIDMA_BASEADDR 0x84600000
137
138 static void
139 petalogix_ml605_init(ram_addr_t ram_size,
140 const char *boot_device,
141 const char *kernel_filename,
142 const char *kernel_cmdline,
143 const char *initrd_filename, const char *cpu_model)
144 {
145 MemoryRegion *address_space_mem = get_system_memory();
146 DeviceState *dev;
147 CPUState *env;
148 int kernel_size;
149 DriveInfo *dinfo;
150 int i;
151 target_phys_addr_t ddr_base = MEMORY_BASEADDR;
152 MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
153 MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
154 qemu_irq irq[32], *cpu_irq;
155
156 /* init CPUs */
157 if (cpu_model == NULL) {
158 cpu_model = "microblaze";
159 }
160 env = cpu_init(cpu_model);
161
162 qemu_register_reset(main_cpu_reset, env);
163
164 /* Attach emulated BRAM through the LMB. */
165 memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
166 LMB_BRAM_SIZE);
167 vmstate_register_ram_global(phys_lmb_bram);
168 memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
169
170 memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
171 vmstate_register_ram_global(phys_ram);
172 memory_region_add_subregion(address_space_mem, ddr_base, phys_ram);
173
174 dinfo = drive_get(IF_PFLASH, 0, 0);
175 /* 5th parameter 2 means bank-width
176 * 10th paremeter 0 means little-endian */
177 pflash_cfi01_register(FLASH_BASEADDR,
178 NULL, "petalogix_ml605.flash", FLASH_SIZE,
179 dinfo ? dinfo->bdrv : NULL, (64 * 1024),
180 FLASH_SIZE >> 16,
181 2, 0x89, 0x18, 0x0000, 0x0, 0);
182
183
184 cpu_irq = microblaze_pic_init_cpu(env);
185 dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4);
186 for (i = 0; i < 32; i++) {
187 irq[i] = qdev_get_gpio_in(dev, i);
188 }
189
190 serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2,
191 irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN);
192
193 /* 2 timers at irq 2 @ 100 Mhz. */
194 xilinx_timer_create(TIMER_BASEADDR, irq[2], 2, 100 * 1000000);
195
196 /* axi ethernet and dma initialization. TODO: Dynamically connect them. */
197 {
198 static struct XilinxDMAConnection dmach;
199
200 xilinx_axiethernet_create(&dmach, &nd_table[0], 0x82780000,
201 irq[3], 0x1000, 0x1000);
202 xilinx_axiethernetdma_create(&dmach, 0x84600000,
203 irq[1], irq[0], 100 * 1000000);
204 }
205
206 if (kernel_filename) {
207 uint64_t entry, low, high;
208 uint32_t base32;
209 int big_endian = 0;
210
211 #ifdef TARGET_WORDS_BIGENDIAN
212 big_endian = 1;
213 #endif
214
215 /* Boots a kernel elf binary. */
216 kernel_size = load_elf(kernel_filename, NULL, NULL,
217 &entry, &low, &high,
218 big_endian, ELF_MACHINE, 0);
219 base32 = entry;
220 if (base32 == 0xc0000000) {
221 kernel_size = load_elf(kernel_filename, translate_kernel_address,
222 NULL, &entry, NULL, NULL,
223 big_endian, ELF_MACHINE, 0);
224 }
225 /* Always boot into physical ram. */
226 boot_info.bootstrap_pc = ddr_base + (entry & 0x0fffffff);
227
228 /* If it wasn't an ELF image, try an u-boot image. */
229 if (kernel_size < 0) {
230 target_phys_addr_t uentry, loadaddr;
231
232 kernel_size = load_uimage(kernel_filename, &uentry, &loadaddr, 0);
233 boot_info.bootstrap_pc = uentry;
234 high = (loadaddr + kernel_size + 3) & ~3;
235 }
236
237 /* Not an ELF image nor an u-boot image, try a RAW image. */
238 if (kernel_size < 0) {
239 kernel_size = load_image_targphys(kernel_filename, ddr_base,
240 ram_size);
241 boot_info.bootstrap_pc = ddr_base;
242 high = (ddr_base + kernel_size + 3) & ~3;
243 }
244
245 boot_info.cmdline = high + 4096;
246 if (kernel_cmdline && strlen(kernel_cmdline)) {
247 pstrcpy_targphys("cmdline", boot_info.cmdline, 256, kernel_cmdline);
248 }
249 /* Provide a device-tree. */
250 boot_info.fdt = boot_info.cmdline + 4096;
251 petalogix_load_device_tree(boot_info.fdt, ram_size,
252 0, 0,
253 kernel_cmdline);
254 }
255 }
256
257 static QEMUMachine petalogix_ml605_machine = {
258 .name = "petalogix-ml605",
259 .desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
260 .init = petalogix_ml605_init,
261 .is_default = 0
262 };
263
264 static void petalogix_ml605_machine_init(void)
265 {
266 qemu_register_machine(&petalogix_ml605_machine);
267 }
268
269 machine_init(petalogix_ml605_machine_init);