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 "cpu.h" 19 #include "hw/arm/fsl-imx31.h" 20 #include "hw/boards.h" 21 #include "qemu/error-report.h" 22 #include "exec/address-spaces.h" 23 #include "net/net.h" 24 #include "hw/net/lan9118.h" 25 #include "hw/char/serial.h" 26 #include "sysemu/qtest.h" 27 28 /* Memory map for Kzm Emulation Baseboard: 29 * 0x00000000-0x7fffffff See i.MX31 SOC for support 30 * 0x80000000-0x8fffffff RAM EMULATED 31 * 0x90000000-0x9fffffff RAM EMULATED 32 * 0xa0000000-0xafffffff Flash IGNORED 33 * 0xb0000000-0xb3ffffff Unavailable IGNORED 34 * 0xb4000000-0xb4000fff 8-bit free space IGNORED 35 * 0xb4001000-0xb400100f Board control IGNORED 36 * 0xb4001003 DIP switch 37 * 0xb4001010-0xb400101f 7-segment LED IGNORED 38 * 0xb4001020-0xb400102f LED IGNORED 39 * 0xb4001030-0xb400103f LED IGNORED 40 * 0xb4001040-0xb400104f FPGA, UART EMULATED 41 * 0xb4001050-0xb400105f FPGA, UART EMULATED 42 * 0xb4001060-0xb40fffff FPGA IGNORED 43 * 0xb6000000-0xb61fffff LAN controller EMULATED 44 * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED 45 * 0xb6300000-0xb7ffffff Free IGNORED 46 * 0xb8000000-0xb8004fff Memory control registers IGNORED 47 * 0xc0000000-0xc3ffffff PCMCIA/CF IGNORED 48 * 0xc4000000-0xffffffff Reserved IGNORED 49 */ 50 51 typedef struct IMX31KZM { 52 FslIMX31State soc; 53 MemoryRegion ram; 54 MemoryRegion ram_alias; 55 } IMX31KZM; 56 57 #define KZM_RAM_ADDR (FSL_IMX31_SDRAM0_ADDR) 58 #define KZM_FPGA_ADDR (FSL_IMX31_CS4_ADDR + 0x1040) 59 #define KZM_LAN9118_ADDR (FSL_IMX31_CS5_ADDR) 60 61 static struct arm_boot_info kzm_binfo = { 62 .loader_start = KZM_RAM_ADDR, 63 .board_id = 1722, 64 }; 65 66 static void kzm_init(MachineState *machine) 67 { 68 IMX31KZM *s = g_new0(IMX31KZM, 1); 69 unsigned int ram_size; 70 unsigned int alias_offset; 71 unsigned int i; 72 73 object_initialize_child(OBJECT(machine), "soc", &s->soc, sizeof(s->soc), 74 TYPE_FSL_IMX31, &error_abort, NULL); 75 76 object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal); 77 78 /* Check the amount of memory is compatible with the SOC */ 79 if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) { 80 warn_report("RAM size " RAM_ADDR_FMT " above max supported, " 81 "reduced to %x", machine->ram_size, 82 FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE); 83 machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE; 84 } 85 86 memory_region_allocate_system_memory(&s->ram, NULL, "kzm.ram", 87 machine->ram_size); 88 memory_region_add_subregion(get_system_memory(), FSL_IMX31_SDRAM0_ADDR, 89 &s->ram); 90 91 /* initialize the alias memory if any */ 92 for (i = 0, ram_size = machine->ram_size, alias_offset = 0; 93 (i < 2) && ram_size; i++) { 94 unsigned int size; 95 static const struct { 96 hwaddr addr; 97 unsigned int size; 98 } ram[2] = { 99 { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE }, 100 { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE }, 101 }; 102 103 size = MIN(ram_size, ram[i].size); 104 105 ram_size -= size; 106 107 if (size < ram[i].size) { 108 memory_region_init_alias(&s->ram_alias, NULL, "ram.alias", 109 &s->ram, alias_offset, ram[i].size - size); 110 memory_region_add_subregion(get_system_memory(), 111 ram[i].addr + size, &s->ram_alias); 112 } 113 114 alias_offset += ram[i].size; 115 } 116 117 if (nd_table[0].used) { 118 lan9118_init(&nd_table[0], KZM_LAN9118_ADDR, 119 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52)); 120 } 121 122 if (serial_hd(2)) { /* touchscreen */ 123 serial_mm_init(get_system_memory(), KZM_FPGA_ADDR+0x10, 0, 124 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52), 125 14745600, serial_hd(2), DEVICE_NATIVE_ENDIAN); 126 } 127 128 kzm_binfo.ram_size = machine->ram_size; 129 kzm_binfo.kernel_filename = machine->kernel_filename; 130 kzm_binfo.kernel_cmdline = machine->kernel_cmdline; 131 kzm_binfo.initrd_filename = machine->initrd_filename; 132 kzm_binfo.nb_cpus = 1; 133 134 if (!qtest_enabled()) { 135 arm_load_kernel(&s->soc.cpu, &kzm_binfo); 136 } 137 } 138 139 static void kzm_machine_init(MachineClass *mc) 140 { 141 mc->desc = "ARM KZM Emulation Baseboard (ARM1136)"; 142 mc->init = kzm_init; 143 mc->ignore_memory_transaction_failures = true; 144 } 145 146 DEFINE_MACHINE("kzm", kzm_machine_init) 147