summaryrefslogtreecommitdiff
path: root/hw/kzm.c
blob: 6a5e9dfacaa611e4e35fe75bcdbcc58f79135295 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
/*
 * KZM Board System emulation.
 *
 * Copyright (c) 2008 OKL and 2011 NICTA
 * Written by Hans at OK-Labs
 * Updated by Peter Chubb.
 *
 * This code is licenced under the GPL, version 2 or later.
 * See the file `COPYING' in the top level directory.
 *
 * It (partially) emulates a Kyoto Microcomputer
 * KZM-ARM11-01 evaluation board, with a Freescale
 * i.MX31 SoC
 */

#include "sysbus.h"
#include "exec-memory.h"
#include "hw.h"
#include "arm-misc.h"
#include "devices.h"
#include "net.h"
#include "sysemu.h"
#include "boards.h"
#include "pc.h" /* for the FPGA UART that emulates a 16550 */
#include "imx.h"

    /* Memory map for Kzm Emulation Baseboard:
     * 0x00000000-0x00003fff 16k secure ROM       IGNORED
     * 0x00004000-0x00407fff Reserved             IGNORED
     * 0x00404000-0x00407fff ROM                  IGNORED
     * 0x00408000-0x0fffffff Reserved             IGNORED
     * 0x10000000-0x1fffbfff RAM aliasing         IGNORED
     * 0x1fffc000-0x1fffffff RAM                  EMULATED
     * 0x20000000-0x2fffffff Reserved             IGNORED
     * 0x30000000-0x7fffffff I.MX31 Internal Register Space
     *   0x43f00000 IO_AREA0
     *   0x43f90000 UART1                         EMULATED
     *   0x43f94000 UART2                         EMULATED
     *   0x68000000 AVIC                          EMULATED
     *   0x53f80000 CCM                           EMULATED
     *   0x53f94000 PIT 1                         EMULATED
     *   0x53f98000 PIT 2                         EMULATED
     *   0x53f90000 GPT                           EMULATED
     * 0x80000000-0x87ffffff RAM                  EMULATED
     * 0x88000000-0x8fffffff RAM Aliasing         EMULATED
     * 0xa0000000-0xafffffff NAND Flash           IGNORED
     * 0xb0000000-0xb3ffffff Unavailable          IGNORED
     * 0xb4000000-0xb4000fff 8-bit free space     IGNORED
     * 0xb4001000-0xb400100f Board control        IGNORED
     *  0xb4001003           DIP switch
     * 0xb4001010-0xb400101f 7-segment LED        IGNORED
     * 0xb4001020-0xb400102f LED                  IGNORED
     * 0xb4001030-0xb400103f LED                  IGNORED
     * 0xb4001040-0xb400104f FPGA, UART           EMULATED
     * 0xb4001050-0xb400105f FPGA, UART           EMULATED
     * 0xb4001060-0xb40fffff FPGA                 IGNORED
     * 0xb6000000-0xb61fffff LAN controller       EMULATED
     * 0xb6200000-0xb62fffff FPGA NAND Controller IGNORED
     * 0xb6300000-0xb7ffffff Free                 IGNORED
     * 0xb8000000-0xb8004fff Memory control registers IGNORED
     * 0xc0000000-0xc3ffffff PCMCIA/CF            IGNORED
     * 0xc4000000-0xffffffff Reserved             IGNORED
     */

#define KZM_RAMADDRESS (0x80000000)
#define KZM_FPGA       (0xb4001040)

static struct arm_boot_info kzm_binfo = {
    .loader_start = KZM_RAMADDRESS,
    .board_id = 1722,
};

static void kzm_init(ram_addr_t ram_size,
                     const char *boot_device,
                     const char *kernel_filename, const char *kernel_cmdline,
                     const char *initrd_filename, const char *cpu_model)
{
    ARMCPU *cpu;
    MemoryRegion *address_space_mem = get_system_memory();
    MemoryRegion *ram = g_new(MemoryRegion, 1);
    MemoryRegion *sram = g_new(MemoryRegion, 1);
    MemoryRegion *ram_alias = g_new(MemoryRegion, 1);
    qemu_irq *cpu_pic;
    DeviceState *dev;
    DeviceState *ccm;

    if (!cpu_model) {
        cpu_model = "arm1136";
    }

    cpu = cpu_arm_init(cpu_model);
    if (!cpu) {
        fprintf(stderr, "Unable to find CPU definition\n");
        exit(1);
    }

    /* On a real system, the first 16k is a `secure boot rom' */

    memory_region_init_ram(ram, "kzm.ram", ram_size);
    vmstate_register_ram_global(ram);
    memory_region_add_subregion(address_space_mem, KZM_RAMADDRESS, ram);

    memory_region_init_alias(ram_alias, "ram.alias", ram, 0, ram_size);
    memory_region_add_subregion(address_space_mem, 0x88000000, ram_alias);

    memory_region_init_ram(sram, "kzm.sram", 0x4000);
    memory_region_add_subregion(address_space_mem, 0x1FFFC000, sram);

    cpu_pic = arm_pic_init_cpu(cpu);
    dev = sysbus_create_varargs("imx_avic", 0x68000000,
                                cpu_pic[ARM_PIC_CPU_IRQ],
                                cpu_pic[ARM_PIC_CPU_FIQ], NULL);


    imx_serial_create(0, 0x43f90000, qdev_get_gpio_in(dev, 45));
    imx_serial_create(1, 0x43f94000, qdev_get_gpio_in(dev, 32));

    ccm = sysbus_create_simple("imx_ccm", 0x53f80000, NULL);

    imx_timerp_create(0x53f94000, qdev_get_gpio_in(dev, 28), ccm);
    imx_timerp_create(0x53f98000, qdev_get_gpio_in(dev, 27), ccm);
    imx_timerg_create(0x53f90000, qdev_get_gpio_in(dev, 29), ccm);

    if (nd_table[0].used) {
        lan9118_init(&nd_table[0], 0xb6000000, qdev_get_gpio_in(dev, 52));
    }

    if (serial_hds[2]) { /* touchscreen */
        serial_mm_init(address_space_mem, KZM_FPGA+0x10, 0,
                       qdev_get_gpio_in(dev, 52),
                       14745600, serial_hds[2],
                       DEVICE_NATIVE_ENDIAN);
    }

    kzm_binfo.ram_size = ram_size;
    kzm_binfo.kernel_filename = kernel_filename;
    kzm_binfo.kernel_cmdline = kernel_cmdline;
    kzm_binfo.initrd_filename = initrd_filename;
    kzm_binfo.nb_cpus = 1;
    arm_load_kernel(cpu, &kzm_binfo);
}

static QEMUMachine kzm_machine = {
    .name = "kzm",
    .desc = "ARM KZM Emulation Baseboard (ARM1136)",
    .init = kzm_init,
};

static void kzm_machine_init(void)
{
    qemu_register_machine(&kzm_machine);
}

machine_init(kzm_machine_init)