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 "hw/arm/fsl-imx31.h"
  19 #include "hw/arm/boot.h"
  20 #include "hw/boards.h"
  21 #include "qemu/error-report.h"
  22 #include "exec/address-spaces.h"
  23 #include "net/net.h"
  24 #include "hw/net/lan9118.h"
  25 #include "hw/char/serial.h"
  26 #include "sysemu/qtest.h"
  27 #include "sysemu/sysemu.h"
  28 #include "qemu/cutils.h"
  29
  30 /* Memory map for Kzm Emulation Baseboard:
  31  * 0x00000000-0x7fffffff See i.MX31 SOC for support
  32  * 0x80000000-0x8fffffff RAM                  EMULATED
  33  * 0x90000000-0x9fffffff RAM                  EMULATED
  34  * 0xa0000000-0xafffffff Flash                IGNORED
  35  * 0xb0000000-0xb3ffffff Unavailable          IGNORED
  36  * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
  37  * 0xb4001000-0xb400100f Board control        IGNORED
  38  *  0xb4001003           DIP switch
  39  * 0xb4001010-0xb400101f 7-segment LED        IGNORED
  40  * 0xb4001020-0xb400102f LED                  IGNORED
  41  * 0xb4001030-0xb400103f LED                  IGNORED
  42  * 0xb4001040-0xb400104f FPGA, UART           EMULATED
  43  * 0xb4001050-0xb400105f FPGA, UART           EMULATED
  44  * 0xb4001060-0xb40fffff FPGA                 IGNORED
  45  * 0xb6000000-0xb61fffff LAN controller       EMULATED
  46  * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
  47  * 0xb6300000-0xb7ffffff Free                 IGNORED
  48  * 0xb8000000-0xb8004fff Memory control registers IGNORED
  49  * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
  50  * 0xc4000000-0xffffffff Reserved             IGNORED
  51  */
  52
  53 typedef struct IMX31KZM {
  54     FslIMX31State soc;
  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_child(OBJECT(machine), "soc", &s->soc, TYPE_FSL_IMX31);
  75
  76     qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
  77
  78     /* Check the amount of memory is compatible with the SOC */
  79     if (machine->ram_size > (FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE)) {
  80         char *sz = size_to_str(FSL_IMX31_SDRAM0_SIZE + FSL_IMX31_SDRAM1_SIZE);
  81         error_report("RAM size more than %s is not supported", sz);
  82         g_free(sz);
  83         exit(EXIT_FAILURE);
  84     }
  85
  86     memory_region_add_subregion(get_system_memory(), FSL_IMX31_SDRAM0_ADDR,
  87                                 machine->ram);
  88
  89     /* initialize the alias memory if any */
  90     for (i = 0, ram_size = machine->ram_size, alias_offset = 0;
  91          (i < 2) && ram_size; i++) {
  92         unsigned int size;
  93         static const struct {
  94             hwaddr addr;
  95             unsigned int size;
  96         } ram[2] = {
  97             { FSL_IMX31_SDRAM0_ADDR, FSL_IMX31_SDRAM0_SIZE },
  98             { FSL_IMX31_SDRAM1_ADDR, FSL_IMX31_SDRAM1_SIZE },
  99         };
 100
 101         size = MIN(ram_size, ram[i].size);
 102
 103         ram_size -= size;
 104
 105         if (size < ram[i].size) {
 106             memory_region_init_alias(&s->ram_alias, NULL, "ram.alias",
 107                                      machine->ram,
 108                                      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 (qemu_find_nic_info("lan9118", true, NULL)) {
 117         lan9118_init(KZM_LAN9118_ADDR,
 118                      qdev_get_gpio_in(DEVICE(&s->soc.avic), 52));
 119     }
 120
 121     if (serial_hd(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_hd(2), DEVICE_NATIVE_ENDIAN);
 125     }
 126
 127     kzm_binfo.ram_size = machine->ram_size;
 128
 129     if (!qtest_enabled()) {
 130         arm_load_kernel(&s->soc.cpu, machine, &kzm_binfo);
 131     }
 132 }
 133
 134 static void kzm_machine_init(MachineClass *mc)
 135 {
 136     mc->desc = "ARM KZM Emulation Baseboard (ARM1136)";
 137     mc->init = kzm_init;
 138     mc->ignore_memory_transaction_failures = true;
 139     mc->default_ram_id = "kzm.ram";
 140 }
 141
 142 DEFINE_MACHINE("kzm", kzm_machine_init)