1 /*
2 * Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800
3 * boards.
4 *
5 * Copyright (c) 2009 Edgar E. Iglesias.
6 *
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:
13 *
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
16 *
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
23 * THE SOFTWARE.
24 */
25
26 #include "qemu/osdep.h"
27 #include "qemu/units.h"
28 #include "qapi/error.h"
29 #include "cpu.h"
30 #include "hw/sysbus.h"
31 #include "net/net.h"
32 #include "hw/block/flash.h"
33 #include "sysemu/sysemu.h"
34 #include "hw/boards.h"
35 #include "hw/misc/unimp.h"
36 #include "exec/address-spaces.h"
37 #include "hw/char/xilinx_uartlite.h"
38
39 #include "boot.h"
40
41 #define LMB_BRAM_SIZE (128 * KiB)
42 #define FLASH_SIZE (16 * MiB)
43
44 #define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb"
45
46 #define MEMORY_BASEADDR 0x90000000
47 #define FLASH_BASEADDR 0xa0000000
48 #define GPIO_BASEADDR 0x81400000
49 #define INTC_BASEADDR 0x81800000
50 #define TIMER_BASEADDR 0x83c00000
51 #define UARTLITE_BASEADDR 0x84000000
52 #define ETHLITE_BASEADDR 0x81000000
53
54 #define TIMER_IRQ 0
55 #define ETHLITE_IRQ 1
56 #define UARTLITE_IRQ 3
57
58 static void
petalogix_s3adsp1800_init(MachineState * machine)59 petalogix_s3adsp1800_init(MachineState *machine)
60 {
61 ram_addr_t ram_size = machine->ram_size;
62 DeviceState *dev;
63 MicroBlazeCPU *cpu;
64 DriveInfo *dinfo;
65 int i;
66 hwaddr ddr_base = MEMORY_BASEADDR;
67 MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
68 MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
69 qemu_irq irq[32];
70 MemoryRegion *sysmem = get_system_memory();
71
72 cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
73 object_property_set_str(OBJECT(cpu), "version", "7.10.d", &error_abort);
74 qdev_realize(DEVICE(cpu), NULL, &error_abort);
75
76 /* Attach emulated BRAM through the LMB. */
77 memory_region_init_ram(phys_lmb_bram, NULL,
78 "petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE,
79 &error_fatal);
80 memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
81
82 memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram",
83 ram_size, &error_fatal);
84 memory_region_add_subregion(sysmem, ddr_base, phys_ram);
85
86 dinfo = drive_get(IF_PFLASH, 0, 0);
87 pflash_cfi01_register(FLASH_BASEADDR,
88 "petalogix_s3adsp1800.flash", FLASH_SIZE,
89 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
90 64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1);
91
92 dev = qdev_new("xlnx.xps-intc");
93 qdev_prop_set_uint32(dev, "kind-of-intr",
94 1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ);
95 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
96 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
97 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
98 qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ));
99 for (i = 0; i < 32; i++) {
100 irq[i] = qdev_get_gpio_in(dev, i);
101 }
102
103 dev = qdev_new(TYPE_XILINX_UARTLITE);
104 qdev_prop_set_chr(dev, "chardev", serial_hd(0));
105 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
106 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, UARTLITE_BASEADDR);
107 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[UARTLITE_IRQ]);
108
109 /* 2 timers at irq 2 @ 62 Mhz. */
110 dev = qdev_new("xlnx.xps-timer");
111 qdev_prop_set_uint32(dev, "one-timer-only", 0);
112 qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000);
113 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
114 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
115 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);
116
117 dev = qdev_new("xlnx.xps-ethernetlite");
118 qemu_configure_nic_device(dev, true, NULL);
119 qdev_prop_set_uint32(dev, "tx-ping-pong", 0);
120 qdev_prop_set_uint32(dev, "rx-ping-pong", 0);
121 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
122 sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR);
123 sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]);
124
125 create_unimplemented_device("gpio", GPIO_BASEADDR, 0x10000);
126
127 microblaze_load_kernel(cpu, ddr_base, ram_size,
128 machine->initrd_filename,
129 BINARY_DEVICE_TREE_FILE,
130 NULL);
131 }
132
petalogix_s3adsp1800_machine_init(MachineClass * mc)133 static void petalogix_s3adsp1800_machine_init(MachineClass *mc)
134 {
135 mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800";
136 mc->init = petalogix_s3adsp1800_init;
137 mc->is_default = true;
138 }
139
140 DEFINE_MACHINE("petalogix-s3adsp1800", petalogix_s3adsp1800_machine_init)
141