1 /* 2 * SABRELITE Board System emulation. 3 * 4 * Copyright (c) 2015 Jean-Christophe Dubois <jcd@tribudubois.net> 5 * 6 * This code is licensed under the GPL, version 2 or later. 7 * See the file `COPYING' in the top level directory. 8 * 9 * It (partially) emulates a sabrelite board, with a Freescale 10 * i.MX6 SoC 11 */ 12 13 #include "qemu/osdep.h" 14 #include "qapi/error.h" 15 #include "hw/arm/fsl-imx6.h" 16 #include "hw/boards.h" 17 #include "hw/qdev-properties.h" 18 #include "sysemu/sysemu.h" 19 #include "qemu/error-report.h" 20 #include "sysemu/qtest.h" 21 22 typedef struct IMX6Sabrelite { 23 FslIMX6State soc; 24 MemoryRegion ram; 25 } IMX6Sabrelite; 26 27 static struct arm_boot_info sabrelite_binfo = { 28 /* DDR memory start */ 29 .loader_start = FSL_IMX6_MMDC_ADDR, 30 /* No board ID, we boot from DT tree */ 31 .board_id = -1, 32 }; 33 34 /* No need to do any particular setup for secondary boot */ 35 static void sabrelite_write_secondary(ARMCPU *cpu, 36 const struct arm_boot_info *info) 37 { 38 } 39 40 /* Secondary cores are reset through SRC device */ 41 static void sabrelite_reset_secondary(ARMCPU *cpu, 42 const struct arm_boot_info *info) 43 { 44 } 45 46 static void sabrelite_init(MachineState *machine) 47 { 48 IMX6Sabrelite *s = g_new0(IMX6Sabrelite, 1); 49 Error *err = NULL; 50 51 /* Check the amount of memory is compatible with the SOC */ 52 if (machine->ram_size > FSL_IMX6_MMDC_SIZE) { 53 error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)", 54 machine->ram_size, FSL_IMX6_MMDC_SIZE); 55 exit(1); 56 } 57 58 object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), 59 TYPE_FSL_IMX6, &error_abort, NULL); 60 61 object_property_set_bool(OBJECT(&s->soc), true, "realized", &err); 62 if (err != NULL) { 63 error_report("%s", error_get_pretty(err)); 64 exit(1); 65 } 66 67 memory_region_allocate_system_memory(&s->ram, NULL, "sabrelite.ram", 68 machine->ram_size); 69 memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR, 70 &s->ram); 71 72 { 73 /* 74 * TODO: Ideally we would expose the chip select and spi bus on the 75 * SoC object using alias properties; then we would not need to 76 * directly access the underlying spi device object. 77 */ 78 /* Add the sst25vf016b NOR FLASH memory to first SPI */ 79 Object *spi_dev; 80 81 spi_dev = object_resolve_path_component(OBJECT(&s->soc), "spi1"); 82 if (spi_dev) { 83 SSIBus *spi_bus; 84 85 spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi"); 86 if (spi_bus) { 87 DeviceState *flash_dev; 88 qemu_irq cs_line; 89 DriveInfo *dinfo = drive_get_next(IF_MTD); 90 91 flash_dev = ssi_create_slave_no_init(spi_bus, "sst25vf016b"); 92 if (dinfo) { 93 qdev_prop_set_drive(flash_dev, "drive", 94 blk_by_legacy_dinfo(dinfo), 95 &error_fatal); 96 } 97 qdev_init_nofail(flash_dev); 98 99 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 100 sysbus_connect_irq(SYS_BUS_DEVICE(spi_dev), 1, cs_line); 101 } 102 } 103 } 104 105 sabrelite_binfo.ram_size = machine->ram_size; 106 sabrelite_binfo.kernel_filename = machine->kernel_filename; 107 sabrelite_binfo.kernel_cmdline = machine->kernel_cmdline; 108 sabrelite_binfo.initrd_filename = machine->initrd_filename; 109 sabrelite_binfo.nb_cpus = machine->smp.cpus; 110 sabrelite_binfo.secure_boot = true; 111 sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary; 112 sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary; 113 114 if (!qtest_enabled()) { 115 arm_load_kernel(&s->soc.cpu[0], &sabrelite_binfo); 116 } 117 } 118 119 static void sabrelite_machine_init(MachineClass *mc) 120 { 121 mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex A9)"; 122 mc->init = sabrelite_init; 123 mc->max_cpus = FSL_IMX6_NUM_CPUS; 124 mc->ignore_memory_transaction_failures = true; 125 } 126 127 DEFINE_MACHINE("sabrelite", sabrelite_machine_init) 128