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
kzm_init(MachineState * machine)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
kzm_machine_init(MachineClass * mc)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)
143