106 lines
3.9 KiB
C
106 lines
3.9 KiB
C
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/*
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* SmartFusion2 SOM starter kit(from Emcraft) emulation.
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*
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* Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qapi/error.h"
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#include "qemu/error-report.h"
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#include "hw/boards.h"
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#include "hw/arm/arm.h"
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#include "exec/address-spaces.h"
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#include "qemu/cutils.h"
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#include "hw/arm/msf2-soc.h"
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#include "cpu.h"
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#define DDR_BASE_ADDRESS 0xA0000000
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#define DDR_SIZE (64 * M_BYTE)
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#define M2S010_ENVM_SIZE (256 * K_BYTE)
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#define M2S010_ESRAM_SIZE (64 * K_BYTE)
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static void emcraft_sf2_s2s010_init(MachineState *machine)
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{
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DeviceState *dev;
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DeviceState *spi_flash;
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MSF2State *soc;
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MachineClass *mc = MACHINE_GET_CLASS(machine);
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DriveInfo *dinfo = drive_get_next(IF_MTD);
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qemu_irq cs_line;
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SSIBus *spi_bus;
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MemoryRegion *sysmem = get_system_memory();
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MemoryRegion *ddr = g_new(MemoryRegion, 1);
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if (strcmp(machine->cpu_type, mc->default_cpu_type) != 0) {
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error_report("This board can only be used with CPU %s",
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mc->default_cpu_type);
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}
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memory_region_init_ram(ddr, NULL, "ddr-ram", DDR_SIZE,
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&error_fatal);
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memory_region_add_subregion(sysmem, DDR_BASE_ADDRESS, ddr);
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dev = qdev_create(NULL, TYPE_MSF2_SOC);
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qdev_prop_set_string(dev, "part-name", "M2S010");
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qdev_prop_set_string(dev, "cpu-type", mc->default_cpu_type);
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qdev_prop_set_uint64(dev, "eNVM-size", M2S010_ENVM_SIZE);
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qdev_prop_set_uint64(dev, "eSRAM-size", M2S010_ESRAM_SIZE);
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/*
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* CPU clock and peripheral clocks(APB0, APB1)are configurable
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* in Libero. CPU clock is divided by APB0 and APB1 divisors for
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* peripherals. Emcraft's SoM kit comes with these settings by default.
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*/
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qdev_prop_set_uint32(dev, "m3clk", 142 * 1000000);
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qdev_prop_set_uint32(dev, "apb0div", 2);
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qdev_prop_set_uint32(dev, "apb1div", 2);
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object_property_set_bool(OBJECT(dev), true, "realized", &error_fatal);
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soc = MSF2_SOC(dev);
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/* Attach SPI flash to SPI0 controller */
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spi_bus = (SSIBus *)qdev_get_child_bus(dev, "spi0");
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spi_flash = ssi_create_slave_no_init(spi_bus, "s25sl12801");
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qdev_prop_set_uint8(spi_flash, "spansion-cr2nv", 1);
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if (dinfo) {
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qdev_prop_set_drive(spi_flash, "drive", blk_by_legacy_dinfo(dinfo),
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&error_fatal);
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}
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qdev_init_nofail(spi_flash);
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cs_line = qdev_get_gpio_in_named(spi_flash, SSI_GPIO_CS, 0);
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sysbus_connect_irq(SYS_BUS_DEVICE(&soc->spi[0]), 1, cs_line);
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armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,
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soc->envm_size);
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}
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static void emcraft_sf2_machine_init(MachineClass *mc)
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{
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mc->desc = "SmartFusion2 SOM kit from Emcraft (M2S010)";
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mc->init = emcraft_sf2_s2s010_init;
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mc->default_cpu_type = ARM_CPU_TYPE_NAME("cortex-m3");
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}
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DEFINE_MACHINE("emcraft-sf2", emcraft_sf2_machine_init)
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