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
26 #include "qemu/osdep.h"
27 #include "qapi/error.h"
28 #include "hw/sysbus.h"
31 #include "hw/block/flash.h"
32 #include "sysemu/sysemu.h"
33 #include "hw/devices.h"
34 #include "hw/boards.h"
35 #include "sysemu/block-backend.h"
36 #include "exec/address-spaces.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 #define MEMORY_BASEADDR 0x90000000
46 #define FLASH_BASEADDR 0xa0000000
47 #define INTC_BASEADDR 0x81800000
48 #define TIMER_BASEADDR 0x83c00000
49 #define UARTLITE_BASEADDR 0x84000000
50 #define ETHLITE_BASEADDR 0x81000000
54 #define UARTLITE_IRQ 3
57 petalogix_s3adsp1800_init(MachineState
*machine
)
59 ram_addr_t ram_size
= machine
->ram_size
;
64 hwaddr ddr_base
= MEMORY_BASEADDR
;
65 MemoryRegion
*phys_lmb_bram
= g_new(MemoryRegion
, 1);
66 MemoryRegion
*phys_ram
= g_new(MemoryRegion
, 1);
68 MemoryRegion
*sysmem
= get_system_memory();
70 cpu
= MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU
));
71 object_property_set_str(OBJECT(cpu
), "7.10.d", "version", &error_abort
);
72 object_property_set_bool(OBJECT(cpu
), true, "realized", &error_abort
);
74 /* Attach emulated BRAM through the LMB. */
75 memory_region_init_ram(phys_lmb_bram
, NULL
,
76 "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
, NULL
, "petalogix_s3adsp1800.ram",
82 ram_size
, &error_fatal
);
83 vmstate_register_ram_global(phys_ram
);
84 memory_region_add_subregion(sysmem
, ddr_base
, phys_ram
);
86 dinfo
= drive_get(IF_PFLASH
, 0, 0);
87 pflash_cfi01_register(FLASH_BASEADDR
,
88 NULL
, "petalogix_s3adsp1800.flash", FLASH_SIZE
,
89 dinfo
? blk_by_legacy_dinfo(dinfo
) : NULL
,
90 (64 * 1024), FLASH_SIZE
>> 16,
91 1, 0x89, 0x18, 0x0000, 0x0, 1);
93 dev
= qdev_create(NULL
, "xlnx.xps-intc");
94 qdev_prop_set_uint32(dev
, "kind-of-intr",
95 1 << ETHLITE_IRQ
| 1 << UARTLITE_IRQ
);
96 qdev_init_nofail(dev
);
97 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, INTC_BASEADDR
);
98 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0,
99 qdev_get_gpio_in(DEVICE(cpu
), MB_CPU_IRQ
));
100 for (i
= 0; i
< 32; i
++) {
101 irq
[i
] = qdev_get_gpio_in(dev
, i
);
104 sysbus_create_simple("xlnx.xps-uartlite", UARTLITE_BASEADDR
,
107 /* 2 timers at irq 2 @ 62 Mhz. */
108 dev
= qdev_create(NULL
, "xlnx.xps-timer");
109 qdev_prop_set_uint32(dev
, "one-timer-only", 0);
110 qdev_prop_set_uint32(dev
, "clock-frequency", 62 * 1000000);
111 qdev_init_nofail(dev
);
112 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, TIMER_BASEADDR
);
113 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, irq
[TIMER_IRQ
]);
115 qemu_check_nic_model(&nd_table
[0], "xlnx.xps-ethernetlite");
116 dev
= qdev_create(NULL
, "xlnx.xps-ethernetlite");
117 qdev_set_nic_properties(dev
, &nd_table
[0]);
118 qdev_prop_set_uint32(dev
, "tx-ping-pong", 0);
119 qdev_prop_set_uint32(dev
, "rx-ping-pong", 0);
120 qdev_init_nofail(dev
);
121 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, ETHLITE_BASEADDR
);
122 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, irq
[ETHLITE_IRQ
]);
124 microblaze_load_kernel(cpu
, ddr_base
, ram_size
,
125 machine
->initrd_filename
,
126 BINARY_DEVICE_TREE_FILE
,
130 static void petalogix_s3adsp1800_machine_init(MachineClass
*mc
)
132 mc
->desc
= "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800";
133 mc
->init
= petalogix_s3adsp1800_init
;
137 DEFINE_MACHINE("petalogix-s3adsp1800", petalogix_s3adsp1800_machine_init
)