hw/arm/kzm.c

   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)