2 * SmartFusion2 SOM starter kit(from Emcraft) emulation.
4 * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
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:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
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
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 "hw/qdev-clock.h"
33 #include "exec/address-spaces.h"
34 #include "hw/arm/msf2-soc.h"
36 #define DDR_BASE_ADDRESS 0xA0000000
37 #define DDR_SIZE (64 * MiB)
39 #define M2S010_ENVM_SIZE (256 * KiB)
40 #define M2S010_ESRAM_SIZE (64 * KiB)
42 static void emcraft_sf2_s2s010_init(MachineState
*machine
)
45 DeviceState
*spi_flash
;
47 MachineClass
*mc
= MACHINE_GET_CLASS(machine
);
48 DriveInfo
*dinfo
= drive_get_next(IF_MTD
);
51 MemoryRegion
*sysmem
= get_system_memory();
52 MemoryRegion
*ddr
= g_new(MemoryRegion
, 1);
55 if (strcmp(machine
->cpu_type
, mc
->default_cpu_type
) != 0) {
56 error_report("This board can only be used with CPU %s",
57 mc
->default_cpu_type
);
61 memory_region_init_ram(ddr
, NULL
, "ddr-ram", DDR_SIZE
,
63 memory_region_add_subregion(sysmem
, DDR_BASE_ADDRESS
, ddr
);
65 dev
= qdev_new(TYPE_MSF2_SOC
);
66 qdev_prop_set_string(dev
, "part-name", "M2S010");
67 qdev_prop_set_string(dev
, "cpu-type", mc
->default_cpu_type
);
69 qdev_prop_set_uint64(dev
, "eNVM-size", M2S010_ENVM_SIZE
);
70 qdev_prop_set_uint64(dev
, "eSRAM-size", M2S010_ESRAM_SIZE
);
73 * CPU clock and peripheral clocks(APB0, APB1)are configurable
74 * in Libero. CPU clock is divided by APB0 and APB1 divisors for
75 * peripherals. Emcraft's SoM kit comes with these settings by default.
77 /* This clock doesn't need migration because it is fixed-frequency */
78 m3clk
= clock_new(OBJECT(machine
), "m3clk");
79 clock_set_hz(m3clk
, 142 * 1000000);
80 qdev_connect_clock_in(dev
, "m3clk", m3clk
);
81 qdev_prop_set_uint32(dev
, "apb0div", 2);
82 qdev_prop_set_uint32(dev
, "apb1div", 2);
84 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev
), &error_fatal
);
88 /* Attach SPI flash to SPI0 controller */
89 spi_bus
= qdev_get_child_bus(dev
, "spi0");
90 spi_flash
= qdev_new("s25sl12801");
91 qdev_prop_set_uint8(spi_flash
, "spansion-cr2nv", 1);
93 qdev_prop_set_drive_err(spi_flash
, "drive",
94 blk_by_legacy_dinfo(dinfo
), &error_fatal
);
96 qdev_realize_and_unref(spi_flash
, spi_bus
, &error_fatal
);
97 cs_line
= qdev_get_gpio_in_named(spi_flash
, SSI_GPIO_CS
, 0);
98 sysbus_connect_irq(SYS_BUS_DEVICE(&soc
->spi
[0]), 1, cs_line
);
100 armv7m_load_kernel(ARM_CPU(first_cpu
), machine
->kernel_filename
,
104 static void emcraft_sf2_machine_init(MachineClass
*mc
)
106 mc
->desc
= "SmartFusion2 SOM kit from Emcraft (M2S010)";
107 mc
->init
= emcraft_sf2_s2s010_init
;
108 mc
->default_cpu_type
= ARM_CPU_TYPE_NAME("cortex-m3");
111 DEFINE_MACHINE("emcraft-sf2", emcraft_sf2_machine_init
)