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 static struct arm_boot_info sabrelite_binfo = { 23 /* DDR memory start */ 24 .loader_start = FSL_IMX6_MMDC_ADDR, 25 /* No board ID, we boot from DT tree */ 26 .board_id = -1, 27 }; 28 29 /* No need to do any particular setup for secondary boot */ 30 static void sabrelite_write_secondary(ARMCPU *cpu, 31 const struct arm_boot_info *info) 32 { 33 } 34 35 /* Secondary cores are reset through SRC device */ 36 static void sabrelite_reset_secondary(ARMCPU *cpu, 37 const struct arm_boot_info *info) 38 { 39 } 40 41 static void sabrelite_init(MachineState *machine) 42 { 43 FslIMX6State *s; 44 Error *err = NULL; 45 46 /* Check the amount of memory is compatible with the SOC */ 47 if (machine->ram_size > FSL_IMX6_MMDC_SIZE) { 48 error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)", 49 machine->ram_size, FSL_IMX6_MMDC_SIZE); 50 exit(1); 51 } 52 53 s = FSL_IMX6(object_new(TYPE_FSL_IMX6)); 54 object_property_add_child(OBJECT(machine), "soc", OBJECT(s), &error_fatal); 55 object_property_set_bool(OBJECT(s), true, "realized", &err); 56 if (err != NULL) { 57 error_report("%s", error_get_pretty(err)); 58 exit(1); 59 } 60 61 memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR, 62 machine->ram); 63 64 { 65 /* 66 * TODO: Ideally we would expose the chip select and spi bus on the 67 * SoC object using alias properties; then we would not need to 68 * directly access the underlying spi device object. 69 */ 70 /* Add the sst25vf016b NOR FLASH memory to first SPI */ 71 Object *spi_dev; 72 73 spi_dev = object_resolve_path_component(OBJECT(s), "spi1"); 74 if (spi_dev) { 75 SSIBus *spi_bus; 76 77 spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi"); 78 if (spi_bus) { 79 DeviceState *flash_dev; 80 qemu_irq cs_line; 81 DriveInfo *dinfo = drive_get_next(IF_MTD); 82 83 flash_dev = ssi_create_slave_no_init(spi_bus, "sst25vf016b"); 84 if (dinfo) { 85 qdev_prop_set_drive(flash_dev, "drive", 86 blk_by_legacy_dinfo(dinfo), 87 &error_fatal); 88 } 89 qdev_init_nofail(flash_dev); 90 91 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 92 sysbus_connect_irq(SYS_BUS_DEVICE(spi_dev), 1, cs_line); 93 } 94 } 95 } 96 97 sabrelite_binfo.ram_size = machine->ram_size; 98 sabrelite_binfo.nb_cpus = machine->smp.cpus; 99 sabrelite_binfo.secure_boot = true; 100 sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary; 101 sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary; 102 103 if (!qtest_enabled()) { 104 arm_load_kernel(&s->cpu[0], machine, &sabrelite_binfo); 105 } 106 } 107 108 static void sabrelite_machine_init(MachineClass *mc) 109 { 110 mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex A9)"; 111 mc->init = sabrelite_init; 112 mc->max_cpus = FSL_IMX6_NUM_CPUS; 113 mc->ignore_memory_transaction_failures = true; 114 mc->default_ram_id = "sabrelite.ram"; 115 } 116 117 DEFINE_MACHINE("sabrelite", sabrelite_machine_init) 118