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 "hw/qdev-properties.h"
  29 #include "hw/arm/fsl-imx25.h"
  30 #include "hw/boards.h"
  31 #include "qemu/error-report.h"
  32 #include "sysemu/qtest.h"
  33 #include "hw/i2c/i2c.h"
  34 #include "qemu/cutils.h"
  35
  36 /* Memory map for PDK Emulation Baseboard:
  37  * 0x00000000-0x7fffffff See i.MX25 SOC fr support
  38  * 0x80000000-0x87ffffff RAM + Alias          EMULATED
  39  * 0x90000000-0x9fffffff RAM + Alias          EMULATED
  40  * 0xa0000000-0xa7ffffff Flash                IGNORED
  41  * 0xa8000000-0xafffffff Flash                IGNORED
  42  * 0xb0000000-0xb1ffffff SRAM                 IGNORED
  43  * 0xb2000000-0xb3ffffff SRAM                 IGNORED
  44  * 0xb4000000-0xb5ffffff CS4                  IGNORED
  45  * 0xb6000000-0xb8000fff Reserved             IGNORED
  46  * 0xb8001000-0xb8001fff SDRAM CTRL reg       IGNORED
  47  * 0xb8002000-0xb8002fff WEIM CTRL reg        IGNORED
  48  * 0xb8003000-0xb8003fff M3IF CTRL reg        IGNORED
  49  * 0xb8004000-0xb8004fff EMI CTRL reg         IGNORED
  50  * 0xb8005000-0xbaffffff Reserved             IGNORED
  51  * 0xbb000000-0xbb000fff NAND flash area buf  IGNORED
  52  * 0xbb001000-0xbb0011ff NAND flash reserved  IGNORED
  53  * 0xbb001200-0xbb001dff Reserved             IGNORED
  54  * 0xbb001e00-0xbb001fff NAN flash CTRL reg   IGNORED
  55  * 0xbb012000-0xbfffffff Reserved             IGNORED
  56  * 0xc0000000-0xffffffff Reserved             IGNORED
  57  */
  58
  59 typedef struct IMX25PDK {
  60     FslIMX25State soc;
  61     MemoryRegion ram_alias;
  62 } IMX25PDK;
  63
  64 static struct arm_boot_info imx25_pdk_binfo;
  65
  66 static void imx25_pdk_init(MachineState *machine)
  67 {
  68     IMX25PDK *s = g_new0(IMX25PDK, 1);
  69     unsigned int ram_size;
  70     unsigned int alias_offset;
  71     int i;
  72
  73     object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_FSL_IMX25);
  74
  75     qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
  76
  77     /* We need to initialize our memory */
  78     if (machine->ram_size > (FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE)) {
  79         char *sz = size_to_str(FSL_IMX25_SDRAM0_SIZE + FSL_IMX25_SDRAM1_SIZE);
  80         error_report("RAM size more than %s is not supported", sz);
  81         g_free(sz);
  82         exit(EXIT_FAILURE);
  83     }
  84
  85     memory_region_add_subregion(get_system_memory(), FSL_IMX25_SDRAM0_ADDR,
  86                                 machine->ram);
  87
  88     /* initialize the alias memory if any */
  89     for (i = 0, ram_size = machine->ram_size, alias_offset = 0;
  90          (i < 2) && ram_size; i++) {
  91         unsigned int size;
  92         static const struct {
  93             hwaddr addr;
  94             unsigned int size;
  95         } ram[2] = {
  96             { FSL_IMX25_SDRAM0_ADDR, FSL_IMX25_SDRAM0_SIZE },
  97             { FSL_IMX25_SDRAM1_ADDR, FSL_IMX25_SDRAM1_SIZE },
  98         };
  99
 100         size = MIN(ram_size, ram[i].size);
 101
 102         ram_size -= size;
 103
 104         if (size < ram[i].size) {
 105             memory_region_init_alias(&s->ram_alias, NULL, "ram.alias",
 106                                      machine->ram,
 107                                      alias_offset, ram[i].size - size);
 108             memory_region_add_subregion(get_system_memory(),
 109                                         ram[i].addr + size, &s->ram_alias);
 110         }
 111
 112         alias_offset += ram[i].size;
 113     }
 114
 115     imx25_pdk_binfo.ram_size = machine->ram_size;
 116     imx25_pdk_binfo.loader_start = FSL_IMX25_SDRAM0_ADDR;
 117     imx25_pdk_binfo.board_id = 1771;
 118
 119     for (i = 0; i < FSL_IMX25_NUM_ESDHCS; i++) {
 120         BusState *bus;
 121         DeviceState *carddev;
 122         DriveInfo *di;
 123         BlockBackend *blk;
 124
 125         di = drive_get(IF_SD, 0, i);
 126         blk = di ? blk_by_legacy_dinfo(di) : NULL;
 127         bus = qdev_get_child_bus(DEVICE(&s->soc.esdhc[i]), "sd-bus");
 128         carddev = qdev_new(TYPE_SD_CARD);
 129         qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
 130         qdev_realize_and_unref(carddev, bus, &error_fatal);
 131     }
 132
 133     /*
 134      * We test explicitly for qtest here as it is not done (yet?) in
 135      * arm_load_kernel(). Without this the "make check" command would
 136      * fail.
 137      */
 138     if (!qtest_enabled()) {
 139         arm_load_kernel(&s->soc.cpu, machine, &imx25_pdk_binfo);
 140     }
 141 }
 142
 143 static void imx25_pdk_machine_init(MachineClass *mc)
 144 {
 145     mc->desc = "ARM i.MX25 PDK board (ARM926)";
 146     mc->init = imx25_pdk_init;
 147     mc->ignore_memory_transaction_failures = true;
 148     mc->default_ram_id = "imx25.ram";
 149 }
 150
 151 DEFINE_MACHINE("imx25-pdk", imx25_pdk_machine_init)