1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
/*
* Model of Petalogix linux reference design targeting Xilinx Spartan ml605
* board.
*
* Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
* Copyright (c) 2011 PetaLogix
* Copyright (c) 2009 Edgar E. Iglesias.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "sysbus.h"
#include "hw.h"
#include "net/net.h"
#include "flash.h"
#include "sysemu/sysemu.h"
#include "devices.h"
#include "boards.h"
#include "xilinx.h"
#include "sysemu/blockdev.h"
#include "serial.h"
#include "exec/address-spaces.h"
#include "ssi.h"
#include "microblaze_boot.h"
#include "microblaze_pic_cpu.h"
#include "stream.h"
#define LMB_BRAM_SIZE (128 * 1024)
#define FLASH_SIZE (32 * 1024 * 1024)
#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb"
#define NUM_SPI_FLASHES 4
#define MEMORY_BASEADDR 0x50000000
#define FLASH_BASEADDR 0x86000000
#define INTC_BASEADDR 0x81800000
#define TIMER_BASEADDR 0x83c00000
#define UART16550_BASEADDR 0x83e00000
#define AXIENET_BASEADDR 0x82780000
#define AXIDMA_BASEADDR 0x84600000
static void machine_cpu_reset(MicroBlazeCPU *cpu)
{
CPUMBState *env = &cpu->env;
env->pvr.regs[10] = 0x0e000000; /* virtex 6 */
/* setup pvr to match kernel setting */
env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8);
env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
env->pvr.regs[4] = 0xc56b8000;
env->pvr.regs[5] = 0xc56be000;
}
static void
petalogix_ml605_init(QEMUMachineInitArgs *args)
{
ram_addr_t ram_size = args->ram_size;
const char *cpu_model = args->cpu_model;
MemoryRegion *address_space_mem = get_system_memory();
DeviceState *dev, *dma, *eth0;
MicroBlazeCPU *cpu;
SysBusDevice *busdev;
CPUMBState *env;
DriveInfo *dinfo;
int i;
hwaddr ddr_base = MEMORY_BASEADDR;
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32], *cpu_irq;
/* init CPUs */
if (cpu_model == NULL) {
cpu_model = "microblaze";
}
cpu = cpu_mb_init(cpu_model);
env = &cpu->env;
/* Attach emulated BRAM through the LMB. */
memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
LMB_BRAM_SIZE);
vmstate_register_ram_global(phys_lmb_bram);
memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
vmstate_register_ram_global(phys_ram);
memory_region_add_subregion(address_space_mem, ddr_base, phys_ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
/* 5th parameter 2 means bank-width
* 10th paremeter 0 means little-endian */
pflash_cfi01_register(FLASH_BASEADDR,
NULL, "petalogix_ml605.flash", FLASH_SIZE,
dinfo ? dinfo->bdrv : NULL, (64 * 1024),
FLASH_SIZE >> 16,
2, 0x89, 0x18, 0x0000, 0x0, 0);
cpu_irq = microblaze_pic_init_cpu(env);
dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4);
for (i = 0; i < 32; i++) {
irq[i] = qdev_get_gpio_in(dev, i);
}
serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2,
irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN);
/* 2 timers at irq 2 @ 100 Mhz. */
xilinx_timer_create(TIMER_BASEADDR, irq[2], 0, 100 * 1000000);
/* axi ethernet and dma initialization. */
qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet");
eth0 = qdev_create(NULL, "xlnx.axi-ethernet");
dma = qdev_create(NULL, "xlnx.axi-dma");
/* FIXME: attach to the sysbus instead */
object_property_add_child(container_get(qdev_get_machine(), "/unattached"),
"xilinx-dma", OBJECT(dma), NULL);
xilinx_axiethernet_init(eth0, &nd_table[0], STREAM_SLAVE(dma),
0x82780000, irq[3], 0x1000, 0x1000);
xilinx_axidma_init(dma, STREAM_SLAVE(eth0), 0x84600000, irq[1], irq[0],
100 * 1000000);
{
SSIBus *spi;
dev = qdev_create(NULL, "xlnx.xps-spi");
qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES);
qdev_init_nofail(dev);
busdev = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(busdev, 0, 0x40a00000);
sysbus_connect_irq(busdev, 0, irq[4]);
spi = (SSIBus *)qdev_get_child_bus(dev, "spi");
for (i = 0; i < NUM_SPI_FLASHES; i++) {
qemu_irq cs_line;
dev = ssi_create_slave_no_init(spi, "n25q128");
qdev_init_nofail(dev);
cs_line = qdev_get_gpio_in(dev, 0);
sysbus_connect_irq(busdev, i+1, cs_line);
}
}
microblaze_load_kernel(cpu, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE,
machine_cpu_reset);
}
static QEMUMachine petalogix_ml605_machine = {
.name = "petalogix-ml605",
.desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
.init = petalogix_ml605_init,
.is_default = 0,
DEFAULT_MACHINE_OPTIONS,
};
static void petalogix_ml605_machine_init(void)
{
qemu_register_machine(&petalogix_ml605_machine);
}
machine_init(petalogix_ml605_machine_init);
|
