1 | /* |
2 | * SmartFusion2 SOM starter kit(from Emcraft) emulation. |
3 | * |
4 | * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com> |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal |
8 | * in the Software without restriction, including without limitation the rights |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
10 | * copies of the Software, and to permit persons to whom the Software is |
11 | * furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
22 | * THE SOFTWARE. |
23 | */ |
24 | |
25 | #include "qemu/osdep.h" |
26 | #include "qemu/units.h" |
27 | #include "qapi/error.h" |
28 | #include "qemu/error-report.h" |
29 | #include "hw/boards.h" |
30 | #include "hw/qdev-properties.h" |
31 | #include "hw/arm/boot.h" |
32 | #include "exec/address-spaces.h" |
33 | #include "hw/arm/msf2-soc.h" |
34 | #include "cpu.h" |
35 | |
36 | #define DDR_BASE_ADDRESS 0xA0000000 |
37 | #define DDR_SIZE (64 * MiB) |
38 | |
39 | #define M2S010_ENVM_SIZE (256 * KiB) |
40 | #define M2S010_ESRAM_SIZE (64 * KiB) |
41 | |
42 | static void emcraft_sf2_s2s010_init(MachineState *machine) |
43 | { |
44 | DeviceState *dev; |
45 | DeviceState *spi_flash; |
46 | MSF2State *soc; |
47 | MachineClass *mc = MACHINE_GET_CLASS(machine); |
48 | DriveInfo *dinfo = drive_get_next(IF_MTD); |
49 | qemu_irq cs_line; |
50 | SSIBus *spi_bus; |
51 | MemoryRegion *sysmem = get_system_memory(); |
52 | MemoryRegion *ddr = g_new(MemoryRegion, 1); |
53 | |
54 | if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) { |
55 | error_report("This board can only be used with CPU %s" , |
56 | mc->default_cpu_type); |
57 | exit(1); |
58 | } |
59 | |
60 | memory_region_init_ram(ddr, NULL, "ddr-ram" , DDR_SIZE, |
61 | &error_fatal); |
62 | memory_region_add_subregion(sysmem, DDR_BASE_ADDRESS, ddr); |
63 | |
64 | dev = qdev_create(NULL, TYPE_MSF2_SOC); |
65 | qdev_prop_set_string(dev, "part-name" , "M2S010" ); |
66 | qdev_prop_set_string(dev, "cpu-type" , mc->default_cpu_type); |
67 | |
68 | qdev_prop_set_uint64(dev, "eNVM-size" , M2S010_ENVM_SIZE); |
69 | qdev_prop_set_uint64(dev, "eSRAM-size" , M2S010_ESRAM_SIZE); |
70 | |
71 | /* |
72 | * CPU clock and peripheral clocks(APB0, APB1)are configurable |
73 | * in Libero. CPU clock is divided by APB0 and APB1 divisors for |
74 | * peripherals. Emcraft's SoM kit comes with these settings by default. |
75 | */ |
76 | qdev_prop_set_uint32(dev, "m3clk" , 142 * 1000000); |
77 | qdev_prop_set_uint32(dev, "apb0div" , 2); |
78 | qdev_prop_set_uint32(dev, "apb1div" , 2); |
79 | |
80 | object_property_set_bool(OBJECT(dev), true, "realized" , &error_fatal); |
81 | |
82 | soc = MSF2_SOC(dev); |
83 | |
84 | /* Attach SPI flash to SPI0 controller */ |
85 | spi_bus = (SSIBus *)qdev_get_child_bus(dev, "spi0" ); |
86 | spi_flash = ssi_create_slave_no_init(spi_bus, "s25sl12801" ); |
87 | qdev_prop_set_uint8(spi_flash, "spansion-cr2nv" , 1); |
88 | if (dinfo) { |
89 | qdev_prop_set_drive(spi_flash, "drive" , blk_by_legacy_dinfo(dinfo), |
90 | &error_fatal); |
91 | } |
92 | qdev_init_nofail(spi_flash); |
93 | cs_line = qdev_get_gpio_in_named(spi_flash, SSI_GPIO_CS, 0); |
94 | sysbus_connect_irq(SYS_BUS_DEVICE(&soc->spi[0]), 1, cs_line); |
95 | |
96 | armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename, |
97 | soc->envm_size); |
98 | } |
99 | |
100 | static void emcraft_sf2_machine_init(MachineClass *mc) |
101 | { |
102 | mc->desc = "SmartFusion2 SOM kit from Emcraft (M2S010)" ; |
103 | mc->init = emcraft_sf2_s2s010_init; |
104 | mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3" ); |
105 | } |
106 | |
107 | DEFINE_MACHINE("emcraft-sf2" , emcraft_sf2_machine_init) |
108 | |