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 "qemu/error-report.h" 19 #include "sysemu/qtest.h" 20 21 static struct arm_boot_info sabrelite_binfo = { 22 /* DDR memory start */ 23 .loader_start = FSL_IMX6_MMDC_ADDR, 24 /* No board ID, we boot from DT tree */ 25 .board_id = -1, 26 }; 27 28 /* No need to do any particular setup for secondary boot */ 29 static void sabrelite_write_secondary(ARMCPU *cpu, 30 const struct arm_boot_info *info) 31 { 32 } 33 34 /* Secondary cores are reset through SRC device */ 35 static void sabrelite_reset_secondary(ARMCPU *cpu, 36 const struct arm_boot_info *info) 37 { 38 } 39 40 static void sabrelite_init(MachineState *machine) 41 { 42 FslIMX6State *s; 43 44 /* Check the amount of memory is compatible with the SOC */ 45 if (machine->ram_size > FSL_IMX6_MMDC_SIZE) { 46 error_report("RAM size " RAM_ADDR_FMT " above max supported (%08x)", 47 machine->ram_size, FSL_IMX6_MMDC_SIZE); 48 exit(1); 49 } 50 51 s = FSL_IMX6(object_new(TYPE_FSL_IMX6)); 52 object_property_add_child(OBJECT(machine), "soc", OBJECT(s)); 53 54 /* Ethernet PHY address is 6 */ 55 object_property_set_int(OBJECT(s), "fec-phy-num", 6, &error_fatal); 56 57 qdev_realize(DEVICE(s), NULL, &error_fatal); 58 59 memory_region_add_subregion(get_system_memory(), FSL_IMX6_MMDC_ADDR, 60 machine->ram); 61 62 { 63 /* 64 * TODO: Ideally we would expose the chip select and spi bus on the 65 * SoC object using alias properties; then we would not need to 66 * directly access the underlying spi device object. 67 */ 68 /* Add the sst25vf016b NOR FLASH memory to first SPI */ 69 Object *spi_dev; 70 71 spi_dev = object_resolve_path_component(OBJECT(s), "spi1"); 72 if (spi_dev) { 73 SSIBus *spi_bus; 74 75 spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(spi_dev), "spi"); 76 if (spi_bus) { 77 DeviceState *flash_dev; 78 qemu_irq cs_line; 79 DriveInfo *dinfo = drive_get_next(IF_MTD); 80 81 flash_dev = qdev_new("sst25vf016b"); 82 if (dinfo) { 83 qdev_prop_set_drive_err(flash_dev, "drive", 84 blk_by_legacy_dinfo(dinfo), 85 &error_fatal); 86 } 87 qdev_realize_and_unref(flash_dev, BUS(spi_bus), &error_fatal); 88 89 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0); 90 qdev_connect_gpio_out(DEVICE(&s->gpio[2]), 19, cs_line); 91 } 92 } 93 } 94 95 sabrelite_binfo.ram_size = machine->ram_size; 96 sabrelite_binfo.nb_cpus = machine->smp.cpus; 97 sabrelite_binfo.secure_boot = true; 98 sabrelite_binfo.write_secondary_boot = sabrelite_write_secondary; 99 sabrelite_binfo.secondary_cpu_reset_hook = sabrelite_reset_secondary; 100 101 if (!qtest_enabled()) { 102 arm_load_kernel(&s->cpu[0], machine, &sabrelite_binfo); 103 } 104 } 105 106 static void sabrelite_machine_init(MachineClass *mc) 107 { 108 mc->desc = "Freescale i.MX6 Quad SABRE Lite Board (Cortex-A9)"; 109 mc->init = sabrelite_init; 110 mc->max_cpus = FSL_IMX6_NUM_CPUS; 111 mc->ignore_memory_transaction_failures = true; 112 mc->default_ram_id = "sabrelite.ram"; 113 } 114 115 DEFINE_MACHINE("sabrelite", sabrelite_machine_init) 116