2 * SmartFusion2 SOM starter kit(from Emcraft) emulation.
4 * M2S-FG484 SOM hardware architecture specification:
5 * https://www.emcraft.com/jdownloads/som/m2s/m2s-som-ha.pdf
7 * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
9 * Permission is hereby granted, free of charge, to any person obtaining a copy
10 * of this software and associated documentation files (the "Software"), to deal
11 * in the Software without restriction, including without limitation the rights
12 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13 * copies of the Software, and to permit persons to whom the Software is
14 * furnished to do so, subject to the following conditions:
16 * The above copyright notice and this permission notice shall be included in
17 * all copies or substantial portions of the Software.
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
28 #include "qemu/osdep.h"
29 #include "qemu/units.h"
30 #include "qapi/error.h"
31 #include "qemu/error-report.h"
32 #include "hw/boards.h"
33 #include "hw/qdev-properties.h"
34 #include "hw/arm/boot.h"
35 #include "hw/qdev-clock.h"
36 #include "exec/address-spaces.h"
37 #include "hw/arm/msf2-soc.h"
39 #define DDR_BASE_ADDRESS 0xA0000000
40 #define DDR_SIZE (64 * MiB)
42 #define M2S010_ENVM_SIZE (256 * KiB)
43 #define M2S010_ESRAM_SIZE (64 * KiB)
45 static void emcraft_sf2_s2s010_init(MachineState *machine)
48 DeviceState *spi_flash;
50 MachineClass *mc = MACHINE_GET_CLASS(machine);
51 DriveInfo *dinfo = drive_get(IF_MTD, 0, 0);
54 MemoryRegion *sysmem = get_system_memory();
55 MemoryRegion *ddr = g_new(MemoryRegion, 1);
58 if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
59 error_report("This board can only be used with CPU %s",
60 mc->default_cpu_type);
64 memory_region_init_ram(ddr, NULL, "ddr-ram", DDR_SIZE,
66 memory_region_add_subregion(sysmem, DDR_BASE_ADDRESS, ddr);
68 dev = qdev_new(TYPE_MSF2_SOC);
69 qdev_prop_set_string(dev, "part-name", "M2S010");
70 qdev_prop_set_string(dev, "cpu-type", mc->default_cpu_type);
72 qdev_prop_set_uint64(dev, "eNVM-size", M2S010_ENVM_SIZE);
73 qdev_prop_set_uint64(dev, "eSRAM-size", M2S010_ESRAM_SIZE);
76 * CPU clock and peripheral clocks(APB0, APB1)are configurable
77 * in Libero. CPU clock is divided by APB0 and APB1 divisors for
78 * peripherals. Emcraft's SoM kit comes with these settings by default.
80 /* This clock doesn't need migration because it is fixed-frequency */
81 m3clk = clock_new(OBJECT(machine), "m3clk");
82 clock_set_hz(m3clk, 142 * 1000000);
83 qdev_connect_clock_in(dev, "m3clk", m3clk);
84 qdev_prop_set_uint32(dev, "apb0div", 2);
85 qdev_prop_set_uint32(dev, "apb1div", 2);
87 sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
91 /* Attach SPI flash to SPI0 controller */
92 spi_bus = qdev_get_child_bus(dev, "spi0");
93 spi_flash = qdev_new("s25sl12801"); /* Spansion S25FL128SDPBHICO */
94 qdev_prop_set_uint8(spi_flash, "spansion-cr2nv", 1);
96 qdev_prop_set_drive_err(spi_flash, "drive",
97 blk_by_legacy_dinfo(dinfo), &error_fatal);
99 qdev_realize_and_unref(spi_flash, spi_bus, &error_fatal);
100 cs_line = qdev_get_gpio_in_named(spi_flash, SSI_GPIO_CS, 0);
101 sysbus_connect_irq(SYS_BUS_DEVICE(&soc->spi[0]), 1, cs_line);
103 armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
107 static void emcraft_sf2_machine_init(MachineClass *mc)
109 mc->desc = "SmartFusion2 SOM kit from Emcraft (M2S010)";
110 mc->init = emcraft_sf2_s2s010_init;
111 mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
114 DEFINE_MACHINE("emcraft-sf2", emcraft_sf2_machine_init)