jcs.org
qemu with hax to log dma reads & writes
jcs.org/2018/11/12/vfio
microblaze: Add PetaLogix ml605 MMU little-endian ref design
Add the first Microblaze little endian platform.
Platform uses uart16550, axi ethernet, timer, intc.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@petalogix.com>
authored by
Michal Simek
and committed by
Edgar E. Iglesias
00914b7d
93f1e401
+308
-1
+1
-1
Makefile
+1
-1
Makefile
+1
Makefile.target
+1
Makefile.target
+267
hw/petalogix_ml605_mmu.c
+267
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
+
42
+
#include "xilinx_axidma.h"
43
+
44
+
#define LMB_BRAM_SIZE (128 * 1024)
45
+
#define FLASH_SIZE (32 * 1024 * 1024)
46
+
47
+
static struct
48
+
{
49
+
uint32_t bootstrap_pc;
50
+
uint32_t cmdline;
51
+
uint32_t fdt;
52
+
} boot_info;
53
+
54
+
static void main_cpu_reset(void *opaque)
55
+
{
56
+
CPUState *env = opaque;
57
+
58
+
cpu_reset(env);
59
+
env->regs[5] = boot_info.cmdline;
60
+
env->regs[7] = boot_info.fdt;
61
+
env->sregs[SR_PC] = boot_info.bootstrap_pc;
62
+
env->pvr.regs[10] = 0x0e000000; /* virtex 6 */
63
+
/* setup pvr to match kernel setting */
64
+
env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
65
+
env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
66
+
env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8);
67
+
env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
68
+
env->pvr.regs[4] = 0xc56b8000;
69
+
env->pvr.regs[5] = 0xc56be000;
70
+
}
71
+
72
+
#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"
73
+
static int petalogix_load_device_tree(target_phys_addr_t addr,
74
+
uint32_t ramsize,
75
+
target_phys_addr_t initrd_base,
76
+
target_phys_addr_t initrd_size,
77
+
const char *kernel_cmdline)
78
+
{
79
+
char *path;
80
+
int fdt_size;
81
+
#ifdef CONFIG_FDT
82
+
void *fdt;
83
+
int r;
84
+
85
+
/* Try the local "mb.dtb" override. */
86
+
fdt = load_device_tree("mb.dtb", &fdt_size);
87
+
if (!fdt) {
88
+
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
89
+
if (path) {
90
+
fdt = load_device_tree(path, &fdt_size);
91
+
qemu_free(path);
92
+
}
93
+
if (!fdt) {
94
+
return 0;
95
+
}
96
+
}
97
+
98
+
r = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
99
+
if (r < 0) {
100
+
fprintf(stderr, "couldn't set /chosen/bootargs\n");
101
+
}
102
+
cpu_physical_memory_write(addr, (void *)fdt, fdt_size);
103
+
#else
104
+
/* We lack libfdt so we cannot manipulate the fdt. Just pass on the blob
105
+
to the kernel. */
106
+
fdt_size = load_image_targphys("mb.dtb", addr, 0x10000);
107
+
if (fdt_size < 0) {
108
+
path = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
109
+
if (path) {
110
+
fdt_size = load_image_targphys(path, addr, 0x10000);
111
+
qemu_free(path);
112
+
}
113
+
}
114
+
115
+
if (kernel_cmdline) {
116
+
fprintf(stderr,
117
+
"Warning: missing libfdt, cannot pass cmdline to kernel!\n");
118
+
}
119
+
#endif
120
+
return fdt_size;
121
+
}
122
+
123
+
static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
124
+
{
125
+
return addr - 0x30000000LL;
126
+
}
127
+
128
+
#define MEMORY_BASEADDR 0x50000000
129
+
#define FLASH_BASEADDR 0x86000000
130
+
#define INTC_BASEADDR 0x81800000
131
+
#define TIMER_BASEADDR 0x83c00000
132
+
#define UART16550_BASEADDR 0x83e00000
133
+
#define AXIENET_BASEADDR 0x82780000
134
+
#define AXIDMA_BASEADDR 0x84600000
135
+
136
+
static void
137
+
petalogix_ml605_init(ram_addr_t ram_size,
138
+
const char *boot_device,
139
+
const char *kernel_filename,
140
+
const char *kernel_cmdline,
141
+
const char *initrd_filename, const char *cpu_model)
142
+
{
143
+
DeviceState *dev;
144
+
CPUState *env;
145
+
int kernel_size;
146
+
DriveInfo *dinfo;
147
+
int i;
148
+
target_phys_addr_t ddr_base = MEMORY_BASEADDR;
149
+
ram_addr_t phys_lmb_bram;
150
+
ram_addr_t phys_ram;
151
+
ram_addr_t phys_flash;
152
+
qemu_irq irq[32], *cpu_irq;
153
+
void *serial = NULL;
154
+
155
+
/* init CPUs */
156
+
if (cpu_model == NULL) {
157
+
cpu_model = "microblaze";
158
+
}
159
+
env = cpu_init(cpu_model);
160
+
161
+
qemu_register_reset(main_cpu_reset, env);
162
+
163
+
/* Attach emulated BRAM through the LMB. */
164
+
phys_lmb_bram = qemu_ram_alloc(NULL, "petalogix_ml605.lmb_bram",
165
+
LMB_BRAM_SIZE);
166
+
cpu_register_physical_memory(0x00000000, LMB_BRAM_SIZE,
167
+
phys_lmb_bram | IO_MEM_RAM);
168
+
169
+
phys_ram = qemu_ram_alloc(NULL, "petalogix_ml605.ram", ram_size);
170
+
cpu_register_physical_memory(ddr_base, ram_size, phys_ram | IO_MEM_RAM);
171
+
172
+
phys_flash = qemu_ram_alloc(NULL, "petalogix_ml605.flash", FLASH_SIZE);
173
+
dinfo = drive_get(IF_PFLASH, 0, 0);
174
+
/* 5th parameter 2 means bank-width
175
+
* 10th paremeter 0 means little-endian */
176
+
pflash_cfi01_register(FLASH_BASEADDR, phys_flash,
177
+
dinfo ? dinfo->bdrv : NULL, (64 * 1024),
178
+
FLASH_SIZE >> 16,
179
+
2, 0x89, 0x18, 0x0000, 0x0, 0);
180
+
181
+
182
+
cpu_irq = microblaze_pic_init_cpu(env);
183
+
dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4);
184
+
for (i = 0; i < 32; i++) {
185
+
irq[i] = qdev_get_gpio_in(dev, i);
186
+
}
187
+
188
+
serial = serial_mm_init(UART16550_BASEADDR + 0x1000, 2, irq[5],
189
+
115200, serial_hds[0], 1, 0);
190
+
191
+
/* 2 timers at irq 2 @ 100 Mhz. */
192
+
xilinx_timer_create(TIMER_BASEADDR, irq[2], 2, 100 * 1000000);
193
+
194
+
/* axi ethernet and dma initialization. TODO: Dynamically connect them. */
195
+
{
196
+
static struct XilinxDMAConnection dmach;
197
+
198
+
xilinx_axiethernet_create(&dmach, &nd_table[0], 0x82780000,
199
+
irq[3], 0x1000, 0x1000);
200
+
xilinx_axiethernetdma_create(&dmach, 0x84600000,
201
+
irq[1], irq[0], 100 * 1000000);
202
+
}
203
+
204
+
if (kernel_filename) {
205
+
uint64_t entry, low, high;
206
+
uint32_t base32;
207
+
int big_endian = 0;
208
+
209
+
#ifdef TARGET_WORDS_BIGENDIAN
210
+
big_endian = 1;
211
+
#endif
212
+
213
+
/* Boots a kernel elf binary. */
214
+
kernel_size = load_elf(kernel_filename, NULL, NULL,
215
+
&entry, &low, &high,
216
+
big_endian, ELF_MACHINE, 0);
217
+
base32 = entry;
218
+
if (base32 == 0xc0000000) {
219
+
kernel_size = load_elf(kernel_filename, translate_kernel_address,
220
+
NULL, &entry, NULL, NULL,
221
+
big_endian, ELF_MACHINE, 0);
222
+
}
223
+
/* Always boot into physical ram. */
224
+
boot_info.bootstrap_pc = ddr_base + (entry & 0x0fffffff);
225
+
226
+
/* If it wasn't an ELF image, try an u-boot image. */
227
+
if (kernel_size < 0) {
228
+
target_phys_addr_t uentry, loadaddr;
229
+
230
+
kernel_size = load_uimage(kernel_filename, &uentry, &loadaddr, 0);
231
+
boot_info.bootstrap_pc = uentry;
232
+
high = (loadaddr + kernel_size + 3) & ~3;
233
+
}
234
+
235
+
/* Not an ELF image nor an u-boot image, try a RAW image. */
236
+
if (kernel_size < 0) {
237
+
kernel_size = load_image_targphys(kernel_filename, ddr_base,
238
+
ram_size);
239
+
boot_info.bootstrap_pc = ddr_base;
240
+
high = (ddr_base + kernel_size + 3) & ~3;
241
+
}
242
+
243
+
boot_info.cmdline = high + 4096;
244
+
if (kernel_cmdline && strlen(kernel_cmdline)) {
245
+
pstrcpy_targphys("cmdline", boot_info.cmdline, 256, kernel_cmdline);
246
+
}
247
+
/* Provide a device-tree. */
248
+
boot_info.fdt = boot_info.cmdline + 4096;
249
+
petalogix_load_device_tree(boot_info.fdt, ram_size,
250
+
0, 0,
251
+
kernel_cmdline);
252
+
}
253
+
}
254
+
255
+
static QEMUMachine petalogix_ml605_machine = {
256
+
.name = "petalogix-ml605",
257
+
.desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
258
+
.init = petalogix_ml605_init,
259
+
.is_default = 0
260
+
};
261
+
262
+
static void petalogix_ml605_machine_init(void)
263
+
{
264
+
qemu_register_machine(&petalogix_ml605_machine);
265
+
}
266
+
267
+
machine_init(petalogix_ml605_machine_init);
+39
hw/xilinx.h
+39
hw/xilinx.h
···
48
48
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
49
49
return dev;
50
50
}
51
+
52
+
static inline DeviceState *
53
+
xilinx_axiethernet_create(void *dmach,
54
+
NICInfo *nd, target_phys_addr_t base, qemu_irq irq,
55
+
int txmem, int rxmem)
56
+
{
57
+
DeviceState *dev;
58
+
qemu_check_nic_model(nd, "xilinx-axienet");
59
+
60
+
dev = qdev_create(NULL, "xilinx,axienet");
61
+
qdev_set_nic_properties(dev, nd);
62
+
qdev_prop_set_uint32(dev, "c_rxmem", rxmem);
63
+
qdev_prop_set_uint32(dev, "c_txmem", txmem);
64
+
qdev_prop_set_ptr(dev, "dmach", dmach);
65
+
qdev_init_nofail(dev);
66
+
sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
67
+
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq);
68
+
69
+
return dev;
70
+
}
71
+
72
+
static inline DeviceState *
73
+
xilinx_axiethernetdma_create(void *dmach,
74
+
target_phys_addr_t base, qemu_irq irq,
75
+
qemu_irq irq2, int freqhz)
76
+
{
77
+
DeviceState *dev = NULL;
78
+
79
+
dev = qdev_create(NULL, "xilinx,axidma");
80
+
qdev_prop_set_uint32(dev, "freqhz", freqhz);
81
+
qdev_prop_set_ptr(dev, "dmach", dmach);
82
+
qdev_init_nofail(dev);
83
+
84
+
sysbus_mmio_map(sysbus_from_qdev(dev), 0, base);
85
+
sysbus_connect_irq(sysbus_from_qdev(dev), 0, irq2);
86
+
sysbus_connect_irq(sysbus_from_qdev(dev), 1, irq);
87
+
88
+
return dev;
89
+
}
pc-bios/petalogix-ml605.dtb
pc-bios/petalogix-ml605.dtb
This is a binary file and will not be displayed.