1 /* 2 * KZM Board System emulation. 3 * 4 * Copyright (c) 2008 OKL and 2011 NICTA 5 * Written by Hans at OK-Labs 6 * Updated by Peter Chubb. 7 * 8 * This code is licensed under the GPL, version 2 or later. 9 * See the file `COPYING' in the top level directory. 10 * 11 * It (partially) emulates a Kyoto Microcomputer 12 * KZM-ARM11-01 evaluation board, with a Freescale 13 * i.MX31 SoC 14 */ 15 16 #include "qemu/osdep.h" 17 #include "qapi/error.h" 18 #include "qemu-common.h" 19 #include "cpu.h" 20 #include "hw/arm/fsl-imx31.h" 21 #include "hw/boards.h" 22 #include "qemu/error-report.h" 23 #include "exec/address-spaces.h" 24 #include "net/net.h" 25 #include "hw/devices.h" 26 #include "hw/char/serial.h" 27 #include "sysemu/qtest.h" 28 29 /* Memory map for Kzm Emulation Baseboard: 30 * 0x00000000-0x7fffffff See i.MX31 SOC for support 31 * 0x80000000-0x8fffffff RAM EMULATED 32 * 0x90000000-0x9fffffff RAM EMULATED 33 * 0xa0000000-0xafffffff Flash IGNORED 34 * 0xb0000000-0xb3ffffff Unavailable IGNORED 35 * 0xb4000000-0xb4000fff 8-bit free space IGNORED 36 * 0xb4001000-0xb400100f Board control IGNORED 37 * 0xb4001003 DIP switch 38 * 0xb4001010-0xb400101f 7-segment LED IGNORED 39 * 0xb4001020-0xb400102f LED IGNORED 40 * 0xb4001030-0xb400103f LED IGNORED 41 * 0xb4001040-0xb400104f FPGA, UART EMULATED 42 * 0xb4001050-0xb400105f FPGA, UART EMULATED 43 * 0xb4001060-0xb40fffff FPGA IGNORED 44 * 0xb6000000-0xb61fffff LAN controller EMULATED 45 * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED 46 * 0xb6300000-0xb7ffffff Free IGNORED 47 * 0xb8000000-0xb8004fff Memory control registers IGNORED 48 * 0xc0000000-0xc3ffffff PCMCIA/CF IGNORED 49 * 0xc4000000-0xffffffff Reserved IGNORED 50 */ 51 52 typedef struct IMX31KZM { 53 FslIMX31State soc; 54 MemoryRegion ram; 55 MemoryRegion ram_alias; 56 } IMX31KZM; 57 58 #define KZM_RAM_ADDR (FSL_IMX31_SDRAM0_ADDR) 59 #define KZM_FPGA_ADDR (FSL_IMX31_CS4_ADDR + 0x1040) 60 #define KZM_LAN9118_ADDR (FSL_IMX31_CS5_ADDR) 61 62 static struct arm_boot_info kzm_binfo = { 63 .loader_start = KZM_RAM_ADDR, 64 .board_id = 1722, 65 }; 66 67 static void kzm_init(MachineState *machine) 68 { 69 IMX31KZM *s = g_new0(IMX31KZM, 1); 70 unsigned int ram_size; 71 unsigned int alias_offset; 72 unsigned int i; 73 74 object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX31); 75 object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), 76 &error_abort); 77 78 object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal); 79 80 /* Check the amount of memory is compatible with the SOC */ 81 if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) { 82 warn_report("RAM size " RAM_ADDR_FMT " above max supported, " 83 "reduced to %x", machine->ram_size, 84 FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE); 85 machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE; 86 } 87 88 memory_region_allocate_system_memory(&s->ram, NULL, "kzm.ram", 89 machine->ram_size); 90 memory_region_add_subregion(get_system_memory(), FSL_IMX31_SDRAM0_ADDR, 91 &s->ram); 92 93 /* initialize the alias memory if any */ 94 for (i = 0, ram_size = machine->ram_size, alias_offset = 0; 95 (i < 2) && ram_size; i++) { 96 unsigned int size; 97 static const struct { 98 hwaddr addr; 99 unsigned int size; 100 } ram[2] = { 101 { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE }, 102 { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE }, 103 }; 104 105 size = MIN(ram_size, ram[i].size); 106 107 ram_size -= size; 108 109 if (size < ram[i].size) { 110 memory_region_init_alias(&s->ram_alias, NULL, "ram.alias", 111 &s->ram, alias_offset, ram[i].size - size); 112 memory_region_add_subregion(get_system_memory(), 113 ram[i].addr + size, &s->ram_alias); 114 } 115 116 alias_offset += ram[i].size; 117 } 118 119 if (nd_table[0].used) { 120 lan9118_init(&nd_table[0], KZM_LAN9118_ADDR, 121 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52)); 122 } 123 124 if (serial_hds[2]) { /* touchscreen */ 125 serial_mm_init(get_system_memory(), KZM_FPGA_ADDR+0x10, 0, 126 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52), 127 14745600, serial_hds[2], DEVICE_NATIVE_ENDIAN); 128 } 129 130 kzm_binfo.ram_size = machine->ram_size; 131 kzm_binfo.kernel_filename = machine->kernel_filename; 132 kzm_binfo.kernel_cmdline = machine->kernel_cmdline; 133 kzm_binfo.initrd_filename = machine->initrd_filename; 134 kzm_binfo.nb_cpus = 1; 135 136 if (!qtest_enabled()) { 137 arm_load_kernel(&s->soc.cpu, &kzm_binfo); 138 } 139 } 140 141 static void kzm_machine_init(MachineClass *mc) 142 { 143 mc->desc = "ARM KZM Emulation Baseboard (ARM1136)"; 144 mc->init = kzm_init; 145 } 146 147 DEFINE_MACHINE("kzm", kzm_machine_init) 148