1 /* 2 * Copyright (c) 2013 Jean-Christophe Dubois <jcd@tribudubois.net> 3 * 4 * PDK Board System emulation. 5 * 6 * Based on hw/arm/kzm.c 7 * 8 * Copyright (c) 2008 OKL and 2011 NICTA 9 * Written by Hans at OK-Labs 10 * Updated by Peter Chubb. 11 * 12 * This program is free software; you can redistribute it and/or modify it 13 * under the terms of the GNU General Public License as published by the 14 * Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 * 17 * This program is distributed in the hope that it will be useful, but WITHOUT 18 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 19 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 20 * for more details. 21 * 22 * You should have received a copy of the GNU General Public License along 23 * with this program; if not, see <http://www.gnu.org/licenses/>. 24 */ 25 26 #include "qemu/osdep.h" 27 #include "qapi/error.h" 28 #include "qemu-common.h" 29 #include "cpu.h" 30 #include "hw/arm/fsl-imx25.h" 31 #include "hw/boards.h" 32 #include "qemu/error-report.h" 33 #include "exec/address-spaces.h" 34 #include "sysemu/qtest.h" 35 #include "hw/i2c/i2c.h" 36 37 /* Memory map for PDK Emulation Baseboard: 38 * 0x00000000-0x7fffffff See i.MX25 SOC fr support 39 * 0x80000000-0x87ffffff RAM + Alias EMULATED 40 * 0x90000000-0x9fffffff RAM + Alias EMULATED 41 * 0xa0000000-0xa7ffffff Flash IGNORED 42 * 0xa8000000-0xafffffff Flash IGNORED 43 * 0xb0000000-0xb1ffffff SRAM IGNORED 44 * 0xb2000000-0xb3ffffff SRAM IGNORED 45 * 0xb4000000-0xb5ffffff CS4 IGNORED 46 * 0xb6000000-0xb8000fff Reserved IGNORED 47 * 0xb8001000-0xb8001fff SDRAM CTRL reg IGNORED 48 * 0xb8002000-0xb8002fff WEIM CTRL reg IGNORED 49 * 0xb8003000-0xb8003fff M3IF CTRL reg IGNORED 50 * 0xb8004000-0xb8004fff EMI CTRL reg IGNORED 51 * 0xb8005000-0xbaffffff Reserved IGNORED 52 * 0xbb000000-0xbb000fff NAND flash area buf IGNORED 53 * 0xbb001000-0xbb0011ff NAND flash reserved IGNORED 54 * 0xbb001200-0xbb001dff Reserved IGNORED 55 * 0xbb001e00-0xbb001fff NAN flash CTRL reg IGNORED 56 * 0xbb012000-0xbfffffff Reserved IGNORED 57 * 0xc0000000-0xffffffff Reserved IGNORED 58 */ 59 60 typedef struct IMX25PDK { 61 FslIMX25State soc; 62 MemoryRegion ram; 63 MemoryRegion ram_alias; 64 } IMX25PDK; 65 66 static struct arm_boot_info imx25_pdk_binfo; 67 68 static void imx25_pdk_init(MachineState *machine) 69 { 70 IMX25PDK *s = g_new0(IMX25PDK, 1); 71 unsigned int ram_size; 72 unsigned int alias_offset; 73 int i; 74 75 object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX25); 76 object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc), 77 &error_abort); 78 79 object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal); 80 81 /* We need to initialize our memory */ 82 if (machine->ram_size > (FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE)) { 83 warn_report("RAM size " RAM_ADDR_FMT " above max supported, " 84 "reduced to %x", machine->ram_size, 85 FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE); 86 machine->ram_size = FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE; 87 } 88 89 memory_region_allocate_system_memory(&s->ram, NULL, "imx25.ram", 90 machine->ram_size); 91 memory_region_add_subregion(get_system_memory(), FSL_IMX25_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_IMX25_SDRAM0_ADDR, FSL_IMX25_SDRAM0_SIZE }, 103 { FSL_IMX25_SDRAM1_ADDR, FSL_IMX25_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 imx25_pdk_binfo.ram_size = machine->ram_size; 121 imx25_pdk_binfo.kernel_filename = machine->kernel_filename; 122 imx25_pdk_binfo.kernel_cmdline = machine->kernel_cmdline; 123 imx25_pdk_binfo.initrd_filename = machine->initrd_filename; 124 imx25_pdk_binfo.loader_start = FSL_IMX25_SDRAM0_ADDR; 125 imx25_pdk_binfo.board_id = 1771, 126 imx25_pdk_binfo.nb_cpus = 1; 127 128 /* 129 * We test explicitly for qtest here as it is not done (yet?) in 130 * arm_load_kernel(). Without this the "make check" command would 131 * fail. 132 */ 133 if (!qtest_enabled()) { 134 arm_load_kernel(&s->soc.cpu, &imx25_pdk_binfo); 135 } else { 136 /* 137 * This I2C device doesn't exist on the real board. 138 * We add it here (only on qtest usage) to be able to do a bit 139 * of simple qtest. See "make check" for details. 140 */ 141 i2c_create_slave((I2CBus *)qdev_get_child_bus(DEVICE(&s->soc.i2c[0]), 142 "i2c-bus.0"), 143 "ds1338", 0x68); 144 } 145 } 146 147 static void imx25_pdk_machine_init(MachineClass *mc) 148 { 149 mc->desc = "ARM i.MX25 PDK board (ARM926)"; 150 mc->init = imx25_pdk_init; 151 } 152 153 DEFINE_MACHINE("imx25-pdk", imx25_pdk_machine_init) 154