root / hw / microblaze / petalogix_ml605_mmu.c @ bd2be150
History | View | Annotate | Download (6.2 kB)
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 "hw/sysbus.h" |
29 |
#include "hw/hw.h" |
30 |
#include "net/net.h" |
31 |
#include "hw/block/flash.h" |
32 |
#include "sysemu/sysemu.h" |
33 |
#include "hw/devices.h" |
34 |
#include "hw/boards.h" |
35 |
#include "hw/xilinx.h" |
36 |
#include "sysemu/blockdev.h" |
37 |
#include "hw/char/serial.h" |
38 |
#include "exec/address-spaces.h" |
39 |
#include "hw/ssi.h" |
40 |
|
41 |
#include "boot.h" |
42 |
#include "pic_cpu.h" |
43 |
|
44 |
#include "hw/stream.h" |
45 |
|
46 |
#define LMB_BRAM_SIZE (128 * 1024) |
47 |
#define FLASH_SIZE (32 * 1024 * 1024) |
48 |
|
49 |
#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb" |
50 |
|
51 |
#define NUM_SPI_FLASHES 4 |
52 |
|
53 |
#define MEMORY_BASEADDR 0x50000000 |
54 |
#define FLASH_BASEADDR 0x86000000 |
55 |
#define INTC_BASEADDR 0x81800000 |
56 |
#define TIMER_BASEADDR 0x83c00000 |
57 |
#define UART16550_BASEADDR 0x83e00000 |
58 |
#define AXIENET_BASEADDR 0x82780000 |
59 |
#define AXIDMA_BASEADDR 0x84600000 |
60 |
|
61 |
static void machine_cpu_reset(MicroBlazeCPU *cpu) |
62 |
{ |
63 |
CPUMBState *env = &cpu->env; |
64 |
|
65 |
env->pvr.regs[10] = 0x0e000000; /* virtex 6 */ |
66 |
/* setup pvr to match kernel setting */
|
67 |
env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
|
68 |
env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
|
69 |
env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8); |
70 |
env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
|
71 |
env->pvr.regs[4] = 0xc56b8000; |
72 |
env->pvr.regs[5] = 0xc56be000; |
73 |
} |
74 |
|
75 |
static void |
76 |
petalogix_ml605_init(QEMUMachineInitArgs *args) |
77 |
{ |
78 |
ram_addr_t ram_size = args->ram_size; |
79 |
const char *cpu_model = args->cpu_model; |
80 |
MemoryRegion *address_space_mem = get_system_memory(); |
81 |
DeviceState *dev, *dma, *eth0; |
82 |
MicroBlazeCPU *cpu; |
83 |
SysBusDevice *busdev; |
84 |
CPUMBState *env; |
85 |
DriveInfo *dinfo; |
86 |
int i;
|
87 |
hwaddr ddr_base = MEMORY_BASEADDR; |
88 |
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
|
89 |
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
|
90 |
qemu_irq irq[32], *cpu_irq;
|
91 |
|
92 |
/* init CPUs */
|
93 |
if (cpu_model == NULL) { |
94 |
cpu_model = "microblaze";
|
95 |
} |
96 |
cpu = cpu_mb_init(cpu_model); |
97 |
env = &cpu->env; |
98 |
|
99 |
/* Attach emulated BRAM through the LMB. */
|
100 |
memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
|
101 |
LMB_BRAM_SIZE); |
102 |
vmstate_register_ram_global(phys_lmb_bram); |
103 |
memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
|
104 |
|
105 |
memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
|
106 |
vmstate_register_ram_global(phys_ram); |
107 |
memory_region_add_subregion(address_space_mem, ddr_base, phys_ram); |
108 |
|
109 |
dinfo = drive_get(IF_PFLASH, 0, 0); |
110 |
/* 5th parameter 2 means bank-width
|
111 |
* 10th paremeter 0 means little-endian */
|
112 |
pflash_cfi01_register(FLASH_BASEADDR, |
113 |
NULL, "petalogix_ml605.flash", FLASH_SIZE, |
114 |
dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
115 |
FLASH_SIZE >> 16,
|
116 |
2, 0x89, 0x18, 0x0000, 0x0, 0); |
117 |
|
118 |
|
119 |
cpu_irq = microblaze_pic_init_cpu(env); |
120 |
dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4); |
121 |
for (i = 0; i < 32; i++) { |
122 |
irq[i] = qdev_get_gpio_in(dev, i); |
123 |
} |
124 |
|
125 |
serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2, |
126 |
irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); |
127 |
|
128 |
/* 2 timers at irq 2 @ 100 Mhz. */
|
129 |
xilinx_timer_create(TIMER_BASEADDR, irq[2], 0, 100 * 1000000); |
130 |
|
131 |
/* axi ethernet and dma initialization. */
|
132 |
qemu_check_nic_model(&nd_table[0], "xlnx.axi-ethernet"); |
133 |
eth0 = qdev_create(NULL, "xlnx.axi-ethernet"); |
134 |
dma = qdev_create(NULL, "xlnx.axi-dma"); |
135 |
|
136 |
/* FIXME: attach to the sysbus instead */
|
137 |
object_property_add_child(container_get(qdev_get_machine(), "/unattached"),
|
138 |
"xilinx-dma", OBJECT(dma), NULL); |
139 |
|
140 |
xilinx_axiethernet_init(eth0, &nd_table[0], STREAM_SLAVE(dma),
|
141 |
0x82780000, irq[3], 0x1000, 0x1000); |
142 |
|
143 |
xilinx_axidma_init(dma, STREAM_SLAVE(eth0), 0x84600000, irq[1], irq[0], |
144 |
100 * 1000000); |
145 |
|
146 |
{ |
147 |
SSIBus *spi; |
148 |
|
149 |
dev = qdev_create(NULL, "xlnx.xps-spi"); |
150 |
qdev_prop_set_uint8(dev, "num-ss-bits", NUM_SPI_FLASHES);
|
151 |
qdev_init_nofail(dev); |
152 |
busdev = SYS_BUS_DEVICE(dev); |
153 |
sysbus_mmio_map(busdev, 0, 0x40a00000); |
154 |
sysbus_connect_irq(busdev, 0, irq[4]); |
155 |
|
156 |
spi = (SSIBus *)qdev_get_child_bus(dev, "spi");
|
157 |
|
158 |
for (i = 0; i < NUM_SPI_FLASHES; i++) { |
159 |
qemu_irq cs_line; |
160 |
|
161 |
dev = ssi_create_slave(spi, "n25q128");
|
162 |
cs_line = qdev_get_gpio_in(dev, 0);
|
163 |
sysbus_connect_irq(busdev, i+1, cs_line);
|
164 |
} |
165 |
} |
166 |
|
167 |
microblaze_load_kernel(cpu, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE, |
168 |
machine_cpu_reset); |
169 |
|
170 |
} |
171 |
|
172 |
static QEMUMachine petalogix_ml605_machine = {
|
173 |
.name = "petalogix-ml605",
|
174 |
.desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
|
175 |
.init = petalogix_ml605_init, |
176 |
.is_default = 0,
|
177 |
DEFAULT_MACHINE_OPTIONS, |
178 |
}; |
179 |
|
180 |
static void petalogix_ml605_machine_init(void) |
181 |
{ |
182 |
qemu_register_machine(&petalogix_ml605_machine); |
183 |
} |
184 |
|
185 |
machine_init(petalogix_ml605_machine_init); |