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