hw/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 "sysbus.h"
  17 #include "exec-memory.h"
  18 #include "hw.h"
  19 #include "arm-misc.h"
  20 #include "devices.h"
  21 #include "net.h"
  22 #include "sysemu.h"
  23 #include "boards.h"
  24 #include "pc.h" /* for the FPGA UART that emulates a 16550 */
  25 #include "imx.h"
  26
  27     /* Memory map for Kzm Emulation Baseboard:
  28      * 0x00000000-0x00003fff 16k secure ROM       IGNORED
  29      * 0x00004000-0x00407fff Reserved             IGNORED
  30      * 0x00404000-0x00407fff ROM                  IGNORED
  31      * 0x00408000-0x0fffffff Reserved             IGNORED
  32      * 0x10000000-0x1fffbfff RAM aliasing         IGNORED
  33      * 0x1fffc000-0x1fffffff RAM                  EMULATED
  34      * 0x20000000-0x2fffffff Reserved             IGNORED
  35      * 0x30000000-0x7fffffff I.MX31 Internal Register Space
  36      *   0x43f00000 IO_AREA0
  37      *   0x43f90000 UART1                         EMULATED
  38      *   0x43f94000 UART2                         EMULATED
  39      *   0x68000000 AVIC                          EMULATED
  40      *   0x53f80000 CCM                           EMULATED
  41      *   0x53f94000 PIT 1                         EMULATED
  42      *   0x53f98000 PIT 2                         EMULATED
  43      *   0x53f90000 GPT                           EMULATED
  44      * 0x80000000-0x87ffffff RAM                  EMULATED
  45      * 0x88000000-0x8fffffff RAM Aliasing         EMULATED
  46      * 0xa0000000-0xafffffff NAND Flash           IGNORED
  47      * 0xb0000000-0xb3ffffff Unavailable          IGNORED
  48      * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
  49      * 0xb4001000-0xb400100f Board control        IGNORED
  50      *  0xb4001003           DIP switch
  51      * 0xb4001010-0xb400101f 7-segment LED        IGNORED
  52      * 0xb4001020-0xb400102f LED                  IGNORED
  53      * 0xb4001030-0xb400103f LED                  IGNORED
  54      * 0xb4001040-0xb400104f FPGA, UART           EMULATED
  55      * 0xb4001050-0xb400105f FPGA, UART           EMULATED
  56      * 0xb4001060-0xb40fffff FPGA                 IGNORED
  57      * 0xb6000000-0xb61fffff LAN controller       EMULATED
  58      * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
  59      * 0xb6300000-0xb7ffffff Free                 IGNORED
  60      * 0xb8000000-0xb8004fff Memory control registers IGNORED
  61      * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
  62      * 0xc4000000-0xffffffff Reserved             IGNORED
  63      */
  64
  65 #define KZM_RAMADDRESS (0x80000000)
  66 #define KZM_FPGA       (0xb4001040)
  67
  68 static struct arm_boot_info kzm_binfo = {
  69     .loader_start = KZM_RAMADDRESS,
  70     .board_id = 1722,
  71 };
  72
  73 static void kzm_init(ram_addr_t ram_size,
  74                      const char *boot_device,
  75                      const char *kernel_filename, const char *kernel_cmdline,
  76                      const char *initrd_filename, const char *cpu_model)
  77 {
  78     ARMCPU *cpu;
  79     MemoryRegion *address_space_mem = get_system_memory();
  80     MemoryRegion *ram = g_new(MemoryRegion, 1);
  81     MemoryRegion *sram = g_new(MemoryRegion, 1);
  82     MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
  83     qemu_irq *cpu_pic;
  84     DeviceState *dev;
  85     DeviceState *ccm;
  86
  87     if (!cpu_model) {
  88         cpu_model = "arm1136";
  89     }
  90
  91     cpu = cpu_arm_init(cpu_model);
  92     if (!cpu) {
  93         fprintf(stderr, "Unable to find CPU definition\n");
  94         exit(1);
  95     }
  96
  97     /* On a real system, the first 16k is a `secure boot rom' */
  98
  99     memory_region_init_ram(ram, "kzm.ram", ram_size);
 100     vmstate_register_ram_global(ram);
 101     memory_region_add_subregion(address_space_mem, KZM_RAMADDRESS, ram);
 102
 103     memory_region_init_alias(ram_alias, "ram.alias", ram, 0, ram_size);
 104     memory_region_add_subregion(address_space_mem, 0x88000000, ram_alias);
 105
 106     memory_region_init_ram(sram, "kzm.sram", 0x4000);
 107     memory_region_add_subregion(address_space_mem, 0x1FFFC000, sram);
 108
 109     cpu_pic = arm_pic_init_cpu(cpu);
 110     dev = sysbus_create_varargs("imx_avic", 0x68000000,
 111                                 cpu_pic[ARM_PIC_CPU_IRQ],
 112                                 cpu_pic[ARM_PIC_CPU_FIQ], NULL);
 113
 114
 115     imx_serial_create(0, 0x43f90000, qdev_get_gpio_in(dev, 45));
 116     imx_serial_create(1, 0x43f94000, qdev_get_gpio_in(dev, 32));
 117
 118     ccm = sysbus_create_simple("imx_ccm", 0x53f80000, NULL);
 119
 120     imx_timerp_create(0x53f94000, qdev_get_gpio_in(dev, 28), ccm);
 121     imx_timerp_create(0x53f98000, qdev_get_gpio_in(dev, 27), ccm);
 122     imx_timerg_create(0x53f90000, qdev_get_gpio_in(dev, 29), ccm);
 123
 124     if (nd_table[0].used) {
 125         lan9118_init(&nd_table[0], 0xb6000000, qdev_get_gpio_in(dev, 52));
 126     }
 127
 128     if (serial_hds[2]) { /* touchscreen */
 129         serial_mm_init(address_space_mem, KZM_FPGA+0x10, 0,
 130                        qdev_get_gpio_in(dev, 52),
 131                        14745600, serial_hds[2],
 132                        DEVICE_NATIVE_ENDIAN);
 133     }
 134
 135     kzm_binfo.ram_size = ram_size;
 136     kzm_binfo.kernel_filename = kernel_filename;
 137     kzm_binfo.kernel_cmdline = kernel_cmdline;
 138     kzm_binfo.initrd_filename = initrd_filename;
 139     kzm_binfo.nb_cpus = 1;
 140     arm_load_kernel(cpu, &kzm_binfo);
 141 }
 142
 143 static QEMUMachine kzm_machine = {
 144     .name = "kzm",
 145     .desc = "ARM KZM Emulation Baseboard (ARM1136)",
 146     .init = kzm_init,
 147 };
 148
 149 static void kzm_machine_init(void)
 150 {
 151     qemu_register_machine(&kzm_machine);
 152 }
 153
 154 machine_init(kzm_machine_init)