2 * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800
5 * Copyright (c) 2009 Edgar E. Iglesias.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
35 #include "exec-memory.h"
37 #include "microblaze_boot.h"
38 #include "microblaze_pic_cpu.h"
40 #define LMB_BRAM_SIZE (128 * 1024)
41 #define FLASH_SIZE (16 * 1024 * 1024)
43 #define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb"
45 static void machine_cpu_reset(CPUState
*env
)
47 /* FIXME: move to machine specfic cpu reset */
48 env
->pvr
.regs
[10] = 0x0c000000; /* spartan 3a dsp family. */
52 petalogix_s3adsp1800_init(ram_addr_t ram_size
,
53 const char *boot_device
,
54 const char *kernel_filename
,
55 const char *kernel_cmdline
,
56 const char *initrd_filename
, const char *cpu_model
)
62 /* FIXME: remove harcoded magic numbers */
63 target_phys_addr_t ddr_base
= 0x90000000;
64 MemoryRegion
*phys_lmb_bram
= g_new(MemoryRegion
, 1);
65 MemoryRegion
*phys_ram
= g_new(MemoryRegion
, 1);
66 qemu_irq irq
[32], *cpu_irq
;
67 MemoryRegion
*sysmem
= get_system_memory();
70 if (cpu_model
== NULL
) {
71 cpu_model
= "microblaze";
73 env
= cpu_init(cpu_model
);
75 /* Attach emulated BRAM through the LMB. */
76 memory_region_init_ram(phys_lmb_bram
,
77 "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE
);
78 vmstate_register_ram_global(phys_lmb_bram
);
79 memory_region_add_subregion(sysmem
, 0x00000000, phys_lmb_bram
);
81 memory_region_init_ram(phys_ram
, "petalogix_s3adsp1800.ram", ram_size
);
82 vmstate_register_ram_global(phys_ram
);
83 memory_region_add_subregion(sysmem
, ddr_base
, phys_ram
);
85 dinfo
= drive_get(IF_PFLASH
, 0, 0);
86 pflash_cfi01_register(0xa0000000,
87 NULL
, "petalogix_s3adsp1800.flash", FLASH_SIZE
,
88 dinfo
? dinfo
->bdrv
: NULL
, (64 * 1024),
90 1, 0x89, 0x18, 0x0000, 0x0, 1);
92 cpu_irq
= microblaze_pic_init_cpu(env
);
93 dev
= xilinx_intc_create(0x81800000, cpu_irq
[0], 2);
94 for (i
= 0; i
< 32; i
++) {
95 irq
[i
] = qdev_get_gpio_in(dev
, i
);
98 sysbus_create_simple("xilinx,uartlite", 0x84000000, irq
[3]);
99 /* 2 timers at irq 2 @ 62 Mhz. */
100 xilinx_timer_create(0x83c00000, irq
[0], 2, 62 * 1000000);
101 xilinx_ethlite_create(&nd_table
[0], 0x81000000, irq
[1], 0, 0);
103 microblaze_load_kernel(env
, ddr_base
, ram_size
,
104 BINARY_DEVICE_TREE_FILE
, machine_cpu_reset
);
107 static QEMUMachine petalogix_s3adsp1800_machine
= {
108 .name
= "petalogix-s3adsp1800",
109 .desc
= "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800",
110 .init
= petalogix_s3adsp1800_init
,
114 static void petalogix_s3adsp1800_machine_init(void)
116 qemu_register_machine(&petalogix_s3adsp1800_machine
);
119 machine_init(petalogix_s3adsp1800_machine_init
);