hw/arm/imx25_pdk.c

   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 "cpu.h"
  29 #include "hw/qdev-properties.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 #include "qemu/cutils.h"
  37
  38 /* Memory map for PDK Emulation Baseboard:
  39  * 0x00000000-0x7fffffff See i.MX25 SOC fr support
  40  * 0x80000000-0x87ffffff RAM + Alias          EMULATED
  41  * 0x90000000-0x9fffffff RAM + Alias          EMULATED
  42  * 0xa0000000-0xa7ffffff Flash                IGNORED
  43  * 0xa8000000-0xafffffff Flash                IGNORED
  44  * 0xb0000000-0xb1ffffff SRAM                 IGNORED
  45  * 0xb2000000-0xb3ffffff SRAM                 IGNORED
  46  * 0xb4000000-0xb5ffffff CS4                  IGNORED
  47  * 0xb6000000-0xb8000fff Reserved             IGNORED
  48  * 0xb8001000-0xb8001fff SDRAM CTRL reg       IGNORED
  49  * 0xb8002000-0xb8002fff WEIM CTRL reg        IGNORED
  50  * 0xb8003000-0xb8003fff M3IF CTRL reg        IGNORED
  51  * 0xb8004000-0xb8004fff EMI CTRL reg         IGNORED
  52  * 0xb8005000-0xbaffffff Reserved             IGNORED
  53  * 0xbb000000-0xbb000fff NAND flash area buf  IGNORED
  54  * 0xbb001000-0xbb0011ff NAND flash reserved  IGNORED
  55  * 0xbb001200-0xbb001dff Reserved             IGNORED
  56  * 0xbb001e00-0xbb001fff NAN flash CTRL reg   IGNORED
  57  * 0xbb012000-0xbfffffff Reserved             IGNORED
  58  * 0xc0000000-0xffffffff Reserved             IGNORED
  59  */
  60
  61 typedef struct IMX25PDK {
  62     FslIMX25State soc;
  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     MachineClass *mc = MACHINE_GET_CLASS(machine);
  71     IMX25PDK *s = g_new0(IMX25PDK, 1);
  72     unsigned int ram_size;
  73     unsigned int alias_offset;
  74     int i;
  75
  76     object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_FSL_IMX25);
  77
  78     qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
  79
  80     /* We need to initialize our memory */
  81     if (machine->ram_size > (FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE)) {
  82         char *sz = size_to_str(mc->default_ram_size);
  83         error_report("Invalid RAM size, should be %s", sz);
  84         g_free(sz);
  85         exit(EXIT_FAILURE);
  86     }
  87
  88     memory_region_add_subregion(get_system_memory(), FSL_IMX25_SDRAM0_ADDR,
  89                                 machine->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_IMX25_SDRAM0_ADDR, FSL_IMX25_SDRAM0_SIZE },
 100             { FSL_IMX25_SDRAM1_ADDR, FSL_IMX25_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                                      machine->ram,
 110                                      alias_offset, ram[i].size - size);
 111             memory_region_add_subregion(get_system_memory(),
 112                                         ram[i].addr + size, &s->ram_alias);
 113         }
 114
 115         alias_offset += ram[i].size;
 116     }
 117
 118     imx25_pdk_binfo.ram_size = machine->ram_size;
 119     imx25_pdk_binfo.loader_start = FSL_IMX25_SDRAM0_ADDR;
 120     imx25_pdk_binfo.board_id = 1771,
 121     imx25_pdk_binfo.nb_cpus = 1;
 122
 123     for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
 124         BusState *bus;
 125         DeviceState *carddev;
 126         DriveInfo *di;
 127         BlockBackend *blk;
 128
 129         di = drive_get_next(IF_SD);
 130         blk = di ? blk_by_legacy_dinfo(di) : NULL;
 131         bus = qdev_get_child_bus(DEVICE(&s->soc.esdhc[i]), "sd-bus");
 132         carddev = qdev_new(TYPE_SD_CARD);
 133         qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
 134         qdev_realize_and_unref(carddev, bus, &error_fatal);
 135     }
 136
 137     /*
 138      * We test explicitly for qtest here as it is not done (yet?) in
 139      * arm_load_kernel(). Without this the "make check" command would
 140      * fail.
 141      */
 142     if (!qtest_enabled()) {
 143         arm_load_kernel(&s->soc.cpu, machine, &imx25_pdk_binfo);
 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     mc->ignore_memory_transaction_failures = true;
 152     mc->default_ram_id = "imx25.ram";
 153 }
 154
 155 DEFINE_MACHINE("imx25-pdk", imx25_pdk_machine_init)