root / hw / petalogix_ml605_mmu.c @ 8294a64d
History | View | Annotate | Download (5.3 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 "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 "xilinx.h" |
36 |
#include "blockdev.h" |
37 |
#include "pc.h" |
38 |
#include "exec-memory.h" |
39 |
|
40 |
#include "microblaze_boot.h" |
41 |
#include "microblaze_pic_cpu.h" |
42 |
#include "xilinx_axidma.h" |
43 |
|
44 |
#define LMB_BRAM_SIZE (128 * 1024) |
45 |
#define FLASH_SIZE (32 * 1024 * 1024) |
46 |
|
47 |
#define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb" |
48 |
|
49 |
#define MEMORY_BASEADDR 0x50000000 |
50 |
#define FLASH_BASEADDR 0x86000000 |
51 |
#define INTC_BASEADDR 0x81800000 |
52 |
#define TIMER_BASEADDR 0x83c00000 |
53 |
#define UART16550_BASEADDR 0x83e00000 |
54 |
#define AXIENET_BASEADDR 0x82780000 |
55 |
#define AXIDMA_BASEADDR 0x84600000 |
56 |
|
57 |
static void machine_cpu_reset(CPUMBState *env) |
58 |
{ |
59 |
env->pvr.regs[10] = 0x0e000000; /* virtex 6 */ |
60 |
/* setup pvr to match kernel setting */
|
61 |
env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
|
62 |
env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
|
63 |
env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8); |
64 |
env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
|
65 |
env->pvr.regs[4] = 0xc56b8000; |
66 |
env->pvr.regs[5] = 0xc56be000; |
67 |
} |
68 |
|
69 |
static void |
70 |
petalogix_ml605_init(ram_addr_t ram_size, |
71 |
const char *boot_device, |
72 |
const char *kernel_filename, |
73 |
const char *kernel_cmdline, |
74 |
const char *initrd_filename, const char *cpu_model) |
75 |
{ |
76 |
MemoryRegion *address_space_mem = get_system_memory(); |
77 |
DeviceState *dev; |
78 |
CPUMBState *env; |
79 |
DriveInfo *dinfo; |
80 |
int i;
|
81 |
target_phys_addr_t ddr_base = MEMORY_BASEADDR; |
82 |
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
|
83 |
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
|
84 |
qemu_irq irq[32], *cpu_irq;
|
85 |
|
86 |
/* init CPUs */
|
87 |
if (cpu_model == NULL) { |
88 |
cpu_model = "microblaze";
|
89 |
} |
90 |
env = cpu_init(cpu_model); |
91 |
|
92 |
/* Attach emulated BRAM through the LMB. */
|
93 |
memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
|
94 |
LMB_BRAM_SIZE); |
95 |
vmstate_register_ram_global(phys_lmb_bram); |
96 |
memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
|
97 |
|
98 |
memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
|
99 |
vmstate_register_ram_global(phys_ram); |
100 |
memory_region_add_subregion(address_space_mem, ddr_base, phys_ram); |
101 |
|
102 |
dinfo = drive_get(IF_PFLASH, 0, 0); |
103 |
/* 5th parameter 2 means bank-width
|
104 |
* 10th paremeter 0 means little-endian */
|
105 |
pflash_cfi01_register(FLASH_BASEADDR, |
106 |
NULL, "petalogix_ml605.flash", FLASH_SIZE, |
107 |
dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
108 |
FLASH_SIZE >> 16,
|
109 |
2, 0x89, 0x18, 0x0000, 0x0, 0); |
110 |
|
111 |
|
112 |
cpu_irq = microblaze_pic_init_cpu(env); |
113 |
dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4); |
114 |
for (i = 0; i < 32; i++) { |
115 |
irq[i] = qdev_get_gpio_in(dev, i); |
116 |
} |
117 |
|
118 |
serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2, |
119 |
irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); |
120 |
|
121 |
/* 2 timers at irq 2 @ 100 Mhz. */
|
122 |
xilinx_timer_create(TIMER_BASEADDR, irq[2], 2, 100 * 1000000); |
123 |
|
124 |
/* axi ethernet and dma initialization. TODO: Dynamically connect them. */
|
125 |
{ |
126 |
static struct XilinxDMAConnection dmach; |
127 |
|
128 |
xilinx_axiethernet_create(&dmach, &nd_table[0], 0x82780000, |
129 |
irq[3], 0x1000, 0x1000); |
130 |
xilinx_axiethernetdma_create(&dmach, 0x84600000,
|
131 |
irq[1], irq[0], 100 * 1000000); |
132 |
} |
133 |
|
134 |
microblaze_load_kernel(env, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE, |
135 |
machine_cpu_reset); |
136 |
|
137 |
} |
138 |
|
139 |
static QEMUMachine petalogix_ml605_machine = {
|
140 |
.name = "petalogix-ml605",
|
141 |
.desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
|
142 |
.init = petalogix_ml605_init, |
143 |
.is_default = 0
|
144 |
}; |
145 |
|
146 |
static void petalogix_ml605_machine_init(void) |
147 |
{ |
148 |
qemu_register_machine(&petalogix_ml605_machine); |
149 |
} |
150 |
|
151 |
machine_init(petalogix_ml605_machine_init); |