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 "hw/arm/fsl-imx31.h" 17 #include "hw/boards.h" 18 #include "qemu/error-report.h" 19 #include "exec/address-spaces.h" 20 #include "net/net.h" 21 #include "hw/devices.h" 22 #include "hw/char/serial.h" 23 #include "sysemu/qtest.h" 24 25 /* Memory map for Kzm Emulation Baseboard: 26 * 0x00000000-0x7fffffff See i.MX31 SOC for support 27 * 0x80000000-0x8fffffff RAM EMULATED 28 * 0x90000000-0x9fffffff RAM EMULATED 29 * 0xa0000000-0xafffffff Flash IGNORED 30 * 0xb0000000-0xb3ffffff Unavailable IGNORED 31 * 0xb4000000-0xb4000fff 8-bit free space IGNORED 32 * 0xb4001000-0xb400100f Board control IGNORED 33 * 0xb4001003 DIP switch 34 * 0xb4001010-0xb400101f 7-segment LED IGNORED 35 * 0xb4001020-0xb400102f LED IGNORED 36 * 0xb4001030-0xb400103f LED IGNORED 37 * 0xb4001040-0xb400104f FPGA, UART EMULATED 38 * 0xb4001050-0xb400105f FPGA, UART EMULATED 39 * 0xb4001060-0xb40fffff FPGA IGNORED 40 * 0xb6000000-0xb61fffff LAN controller EMULATED 41 * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED 42 * 0xb6300000-0xb7ffffff Free IGNORED 43 * 0xb8000000-0xb8004fff Memory control registers IGNORED 44 * 0xc0000000-0xc3ffffff PCMCIA/CF IGNORED 45 * 0xc4000000-0xffffffff Reserved IGNORED 46 */ 47 48 typedef struct IMX31KZM { 49 FslIMX31State soc; 50 MemoryRegion ram; 51 MemoryRegion ram_alias; 52 } IMX31KZM; 53 54 #define KZM_RAM_ADDR (FSL_IMX31_SDRAM0_ADDR) 55 #define KZM_FPGA_ADDR (FSL_IMX31_CS4_ADDR + 0x1040) 56 #define KZM_LAN9118_ADDR (FSL_IMX31_CS5_ADDR) 57 58 static struct arm_boot_info kzm_binfo = { 59 .loader_start = KZM_RAM_ADDR, 60 .board_id = 1722, 61 }; 62 63 static void kzm_init(MachineState *machine) 64 { 65 IMX31KZM *s = g_new0(IMX31KZM, 1); 66 Error *err = NULL; 67 unsigned int ram_size; 68 unsigned int alias_offset; 69 unsigned int i; 70 71 object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX31); 72 object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), 73 &error_abort); 74 75 object_property_set_bool(OBJECT(&s->soc), true, "realized", &err); 76 if (err != NULL) { 77 error_report_err(err); 78 exit(1); 79 } 80 81 /* Check the amount of memory is compatible with the SOC */ 82 if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) { 83 error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, " 84 "reduced to %x", machine->ram_size, 85 FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE); 86 machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE; 87 } 88 89 memory_region_allocate_system_memory(&s->ram, NULL, "kzm.ram", 90 machine->ram_size); 91 memory_region_add_subregion(get_system_memory(), FSL_IMX31_SDRAM0_ADDR, 92 &s->ram); 93 94 /* initialize the alias memory if any */ 95 for (i = 0, ram_size = machine->ram_size, alias_offset = 0; 96 (i < 2) && ram_size; i++) { 97 unsigned int size; 98 static const struct { 99 hwaddr addr; 100 unsigned int size; 101 } ram[2] = { 102 { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE }, 103 { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE }, 104 }; 105 106 size = MIN(ram_size, ram[i].size); 107 108 ram_size -= size; 109 110 if (size < ram[i].size) { 111 memory_region_init_alias(&s->ram_alias, NULL, "ram.alias", 112 &s->ram, alias_offset, ram[i].size - size); 113 memory_region_add_subregion(get_system_memory(), 114 ram[i].addr + size, &s->ram_alias); 115 } 116 117 alias_offset += ram[i].size; 118 } 119 120 if (nd_table[0].used) { 121 lan9118_init(&nd_table[0], KZM_LAN9118_ADDR, 122 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52)); 123 } 124 125 if (serial_hds[2]) { /* touchscreen */ 126 serial_mm_init(get_system_memory(), KZM_FPGA_ADDR+0x10, 0, 127 qdev_get_gpio_in(DEVICE(&s->soc.avic), 52), 128 14745600, serial_hds[2], DEVICE_NATIVE_ENDIAN); 129 } 130 131 kzm_binfo.ram_size = machine->ram_size; 132 kzm_binfo.kernel_filename = machine->kernel_filename; 133 kzm_binfo.kernel_cmdline = machine->kernel_cmdline; 134 kzm_binfo.initrd_filename = machine->initrd_filename; 135 kzm_binfo.nb_cpus = 1; 136 137 if (!qtest_enabled()) { 138 arm_load_kernel(&s->soc.cpu, &kzm_binfo); 139 } 140 } 141 142 static void kzm_machine_init(MachineClass *mc) 143 { 144 mc->desc = "ARM KZM Emulation Baseboard (ARM1136)"; 145 mc->init = kzm_init; 146 } 147 148 DEFINE_MACHINE("kzm", kzm_machine_init) 149