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 "qapi/error.h"
  18 #include "qemu-common.h"
  19 #include "cpu.h"
  20 #include "hw/arm/fsl-imx31.h"
  21 #include "hw/boards.h"
  22 #include "qemu/error-report.h"
  23 #include "exec/address-spaces.h"
  24 #include "net/net.h"
  25 #include "hw/devices.h"
  26 #include "hw/char/serial.h"
  27 #include "sysemu/qtest.h"
  28
  29 /* Memory map for Kzm Emulation Baseboard:
  30  * 0x00000000-0x7fffffff See i.MX31 SOC for support
  31  * 0x80000000-0x8fffffff RAM                  EMULATED
  32  * 0x90000000-0x9fffffff RAM                  EMULATED
  33  * 0xa0000000-0xafffffff Flash                IGNORED
  34  * 0xb0000000-0xb3ffffff Unavailable          IGNORED
  35  * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
  36  * 0xb4001000-0xb400100f Board control        IGNORED
  37  *  0xb4001003           DIP switch
  38  * 0xb4001010-0xb400101f 7-segment LED        IGNORED
  39  * 0xb4001020-0xb400102f LED                  IGNORED
  40  * 0xb4001030-0xb400103f LED                  IGNORED
  41  * 0xb4001040-0xb400104f FPGA, UART           EMULATED
  42  * 0xb4001050-0xb400105f FPGA, UART           EMULATED
  43  * 0xb4001060-0xb40fffff FPGA                 IGNORED
  44  * 0xb6000000-0xb61fffff LAN controller       EMULATED
  45  * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
  46  * 0xb6300000-0xb7ffffff Free                 IGNORED
  47  * 0xb8000000-0xb8004fff Memory control registers IGNORED
  48  * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
  49  * 0xc4000000-0xffffffff Reserved             IGNORED
  50  */
  51
  52 typedef struct IMX31KZM {
  53     FslIMX31State soc;
  54     MemoryRegion ram;
  55     MemoryRegion ram_alias;
  56 } IMX31KZM;
  57
  58 #define KZM_RAM_ADDR            (FSL_IMX31_SDRAM0_ADDR)
  59 #define KZM_FPGA_ADDR           (FSL_IMX31_CS4_ADDR + 0x1040)
  60 #define KZM_LAN9118_ADDR        (FSL_IMX31_CS5_ADDR)
  61
  62 static struct arm_boot_info kzm_binfo = {
  63     .loader_start = KZM_RAM_ADDR,
  64     .board_id = 1722,
  65 };
  66
  67 static void kzm_init(MachineState *machine)
  68 {
  69     IMX31KZM *s = g_new0(IMX31KZM, 1);
  70     unsigned int ram_size;
  71     unsigned int alias_offset;
  72     unsigned int i;
  73
  74     object_initialize(&s->soc, sizeof(s->soc), TYPE_FSL_IMX31);
  75     object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
  76                               &error_abort);
  77
  78     object_property_set_bool(OBJECT(&s->soc), true, "realized", &error_fatal);
  79
  80     /* Check the amount of memory is compatible with the SOC */
  81     if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) {
  82         error_report("WARNING: RAM size " RAM_ADDR_FMT " above max supported, "
  83                      "reduced to %x", machine->ram_size,
  84                      FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE);
  85         machine->ram_size = FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE;
  86     }
  87
  88     memory_region_allocate_system_memory(&s->ram, NULL, "kzm.ram",
  89                                          machine->ram_size);
  90     memory_region_add_subregion(get_system_memory(), FSL_IMX31_SDRAM0_ADDR,
  91                                 &s->ram);
  92
  93     /* initialize the alias memory if any */
  94     for (i = 0, ram_size = machine->ram_size, alias_offset = 0;
  95          (i < 2) && ram_size; i++) {
  96         unsigned int size;
  97         static const struct {
  98             hwaddr addr;
  99             unsigned int size;
 100         } ram[2] = {
 101             { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE },
 102             { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE },
 103         };
 104
 105         size = MIN(ram_size, ram[i].size);
 106
 107         ram_size -= size;
 108
 109         if (size < ram[i].size) {
 110             memory_region_init_alias(&s->ram_alias, NULL, "ram.alias",
 111                                      &s->ram, alias_offset, ram[i].size - size);
 112             memory_region_add_subregion(get_system_memory(),
 113                                         ram[i].addr + size, &s->ram_alias);
 114         }
 115
 116         alias_offset += ram[i].size;
 117     }
 118
 119     if (nd_table[0].used) {
 120         lan9118_init(&nd_table[0], KZM_LAN9118_ADDR,
 121                      qdev_get_gpio_in(DEVICE(&s->soc.avic), 52));
 122     }
 123
 124     if (serial_hds[2]) { /* touchscreen */
 125         serial_mm_init(get_system_memory(), KZM_FPGA_ADDR+0x10, 0,
 126                        qdev_get_gpio_in(DEVICE(&s->soc.avic), 52),
 127                        14745600, serial_hds[2], DEVICE_NATIVE_ENDIAN);
 128     }
 129
 130     kzm_binfo.ram_size = machine->ram_size;
 131     kzm_binfo.kernel_filename = machine->kernel_filename;
 132     kzm_binfo.kernel_cmdline = machine->kernel_cmdline;
 133     kzm_binfo.initrd_filename = machine->initrd_filename;
 134     kzm_binfo.nb_cpus = 1;
 135
 136     if (!qtest_enabled()) {
 137         arm_load_kernel(&s->soc.cpu, &kzm_binfo);
 138     }
 139 }
 140
 141 static void kzm_machine_init(MachineClass *mc)
 142 {
 143     mc->desc = "ARM KZM Emulation Baseboard (ARM1136)";
 144     mc->init = kzm_init;
 145 }
 146
 147 DEFINE_MACHINE("kzm", kzm_machine_init)