2 * Calxeda Highbank SoC emulation
4 * Copyright (c) 2010-2012 Calxeda
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2 or later, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * You should have received a copy of the GNU General Public License along with
16 * this program. If not, see <http://www.gnu.org/licenses/>.
20 #include "hw/sysbus.h"
21 #include "hw/arm/arm.h"
22 #include "hw/devices.h"
23 #include "hw/loader.h"
25 #include "sysemu/sysemu.h"
26 #include "hw/boards.h"
27 #include "sysemu/blockdev.h"
28 #include "exec/address-spaces.h"
30 #define SMP_BOOT_ADDR 0x100
31 #define SMP_BOOT_REG 0x40
32 #define GIC_BASE_ADDR 0xfff10000
38 static void hb_write_secondary(ARMCPU
*cpu
, const struct arm_boot_info
*info
)
41 uint32_t smpboot
[] = {
42 0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
43 0xe210000f, /* ands r0, r0, #0x0f */
44 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
45 0xe0830200, /* add r0, r3, r0, lsl #4 */
46 0xe59f2024, /* ldr r2, privbase */
47 0xe3a01001, /* mov r1, #1 */
48 0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */
49 0xe3a010ff, /* mov r1, #0xff */
50 0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */
53 0xe5901000, /* ldr r1, [r0] */
54 0xe1110001, /* tst r1, r1 */
55 0x0afffffb, /* beq <wfi> */
56 0xe12fff11, /* bx r1 */
57 GIC_BASE_ADDR
/* privbase: gic address. */
59 for (n
= 0; n
< ARRAY_SIZE(smpboot
); n
++) {
60 smpboot
[n
] = tswap32(smpboot
[n
]);
62 rom_add_blob_fixed("smpboot", smpboot
, sizeof(smpboot
), SMP_BOOT_ADDR
);
65 static void hb_reset_secondary(ARMCPU
*cpu
, const struct arm_boot_info
*info
)
67 CPUARMState
*env
= &cpu
->env
;
69 switch (info
->nb_cpus
) {
71 stl_phys_notdirty(SMP_BOOT_REG
+ 0x30, 0);
73 stl_phys_notdirty(SMP_BOOT_REG
+ 0x20, 0);
75 stl_phys_notdirty(SMP_BOOT_REG
+ 0x10, 0);
76 env
->regs
[15] = SMP_BOOT_ADDR
;
83 #define NUM_REGS 0x200
84 static void hb_regs_write(void *opaque
, hwaddr offset
,
85 uint64_t value
, unsigned size
)
87 uint32_t *regs
= opaque
;
89 if (offset
== 0xf00) {
90 if (value
== 1 || value
== 2) {
91 qemu_system_reset_request();
92 } else if (value
== 3) {
93 qemu_system_shutdown_request();
97 regs
[offset
/4] = value
;
100 static uint64_t hb_regs_read(void *opaque
, hwaddr offset
,
103 uint32_t *regs
= opaque
;
104 uint32_t value
= regs
[offset
/4];
106 if ((offset
== 0x100) || (offset
== 0x108) || (offset
== 0x10C)) {
113 static const MemoryRegionOps hb_mem_ops
= {
114 .read
= hb_regs_read
,
115 .write
= hb_regs_write
,
116 .endianness
= DEVICE_NATIVE_ENDIAN
,
119 #define TYPE_HIGHBANK_REGISTERS "highbank-regs"
120 #define HIGHBANK_REGISTERS(obj) \
121 OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS)
125 SysBusDevice parent_obj
;
129 uint32_t regs
[NUM_REGS
];
132 static VMStateDescription vmstate_highbank_regs
= {
133 .name
= "highbank-regs",
135 .minimum_version_id
= 0,
136 .minimum_version_id_old
= 0,
137 .fields
= (VMStateField
[]) {
138 VMSTATE_UINT32_ARRAY(regs
, HighbankRegsState
, NUM_REGS
),
139 VMSTATE_END_OF_LIST(),
143 static void highbank_regs_reset(DeviceState
*dev
)
145 HighbankRegsState
*s
= HIGHBANK_REGISTERS(dev
);
147 s
->regs
[0x40] = 0x05F20121;
149 s
->regs
[0x42] = 0x05F30121;
150 s
->regs
[0x43] = 0x05F40121;
153 static int highbank_regs_init(SysBusDevice
*dev
)
155 HighbankRegsState
*s
= HIGHBANK_REGISTERS(dev
);
157 s
->iomem
= g_new(MemoryRegion
, 1);
158 memory_region_init_io(s
->iomem
, OBJECT(s
), &hb_mem_ops
, s
->regs
,
159 "highbank_regs", 0x1000);
160 sysbus_init_mmio(dev
, s
->iomem
);
165 static void highbank_regs_class_init(ObjectClass
*klass
, void *data
)
167 SysBusDeviceClass
*sbc
= SYS_BUS_DEVICE_CLASS(klass
);
168 DeviceClass
*dc
= DEVICE_CLASS(klass
);
170 sbc
->init
= highbank_regs_init
;
171 dc
->desc
= "Calxeda Highbank registers";
172 dc
->vmsd
= &vmstate_highbank_regs
;
173 dc
->reset
= highbank_regs_reset
;
176 static const TypeInfo highbank_regs_info
= {
177 .name
= TYPE_HIGHBANK_REGISTERS
,
178 .parent
= TYPE_SYS_BUS_DEVICE
,
179 .instance_size
= sizeof(HighbankRegsState
),
180 .class_init
= highbank_regs_class_init
,
183 static void highbank_regs_register_types(void)
185 type_register_static(&highbank_regs_info
);
188 type_init(highbank_regs_register_types
)
190 static struct arm_boot_info highbank_binfo
;
197 /* ram_size must be set to match the upper bound of memory in the
198 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
199 * normally 0xff900000 or -m 4089. When running this board on a
200 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
201 * device tree and pass -m 2047 to QEMU.
203 static void calxeda_init(QEMUMachineInitArgs
*args
, enum cxmachines machine
)
205 ram_addr_t ram_size
= args
->ram_size
;
206 const char *cpu_model
= args
->cpu_model
;
207 const char *kernel_filename
= args
->kernel_filename
;
208 const char *kernel_cmdline
= args
->kernel_cmdline
;
209 const char *initrd_filename
= args
->initrd_filename
;
210 DeviceState
*dev
= NULL
;
211 SysBusDevice
*busdev
;
215 MemoryRegion
*sysram
;
217 MemoryRegion
*sysmem
;
218 char *sysboot_filename
;
222 case CALXEDA_HIGHBANK
:
223 cpu_model
= "cortex-a9";
226 cpu_model
= "cortex-a15";
231 for (n
= 0; n
< smp_cpus
; n
++) {
233 cpu
= cpu_arm_init(cpu_model
);
235 fprintf(stderr
, "Unable to find CPU definition\n");
239 /* This will become a QOM property eventually */
240 cpu
->reset_cbar
= GIC_BASE_ADDR
;
241 cpu_irq
[n
] = qdev_get_gpio_in(DEVICE(cpu
), ARM_CPU_IRQ
);
244 sysmem
= get_system_memory();
245 dram
= g_new(MemoryRegion
, 1);
246 memory_region_init_ram(dram
, NULL
, "highbank.dram", ram_size
);
247 /* SDRAM at address zero. */
248 memory_region_add_subregion(sysmem
, 0, dram
);
250 sysram
= g_new(MemoryRegion
, 1);
251 memory_region_init_ram(sysram
, NULL
, "highbank.sysram", 0x8000);
252 memory_region_add_subregion(sysmem
, 0xfff88000, sysram
);
253 if (bios_name
!= NULL
) {
254 sysboot_filename
= qemu_find_file(QEMU_FILE_TYPE_BIOS
, bios_name
);
255 if (sysboot_filename
!= NULL
) {
256 uint32_t filesize
= get_image_size(sysboot_filename
);
257 if (load_image_targphys("sysram.bin", 0xfff88000, filesize
) < 0) {
258 hw_error("Unable to load %s\n", bios_name
);
261 hw_error("Unable to find %s\n", bios_name
);
266 case CALXEDA_HIGHBANK
:
267 dev
= qdev_create(NULL
, "l2x0");
268 qdev_init_nofail(dev
);
269 busdev
= SYS_BUS_DEVICE(dev
);
270 sysbus_mmio_map(busdev
, 0, 0xfff12000);
272 dev
= qdev_create(NULL
, "a9mpcore_priv");
275 dev
= qdev_create(NULL
, "a15mpcore_priv");
278 qdev_prop_set_uint32(dev
, "num-cpu", smp_cpus
);
279 qdev_prop_set_uint32(dev
, "num-irq", NIRQ_GIC
);
280 qdev_init_nofail(dev
);
281 busdev
= SYS_BUS_DEVICE(dev
);
282 sysbus_mmio_map(busdev
, 0, GIC_BASE_ADDR
);
283 for (n
= 0; n
< smp_cpus
; n
++) {
284 sysbus_connect_irq(busdev
, n
, cpu_irq
[n
]);
287 for (n
= 0; n
< 128; n
++) {
288 pic
[n
] = qdev_get_gpio_in(dev
, n
);
291 dev
= qdev_create(NULL
, "sp804");
292 qdev_prop_set_uint32(dev
, "freq0", 150000000);
293 qdev_prop_set_uint32(dev
, "freq1", 150000000);
294 qdev_init_nofail(dev
);
295 busdev
= SYS_BUS_DEVICE(dev
);
296 sysbus_mmio_map(busdev
, 0, 0xfff34000);
297 sysbus_connect_irq(busdev
, 0, pic
[18]);
298 sysbus_create_simple("pl011", 0xfff36000, pic
[20]);
300 dev
= qdev_create(NULL
, "highbank-regs");
301 qdev_init_nofail(dev
);
302 busdev
= SYS_BUS_DEVICE(dev
);
303 sysbus_mmio_map(busdev
, 0, 0xfff3c000);
305 sysbus_create_simple("pl061", 0xfff30000, pic
[14]);
306 sysbus_create_simple("pl061", 0xfff31000, pic
[15]);
307 sysbus_create_simple("pl061", 0xfff32000, pic
[16]);
308 sysbus_create_simple("pl061", 0xfff33000, pic
[17]);
309 sysbus_create_simple("pl031", 0xfff35000, pic
[19]);
310 sysbus_create_simple("pl022", 0xfff39000, pic
[23]);
312 sysbus_create_simple("sysbus-ahci", 0xffe08000, pic
[83]);
314 if (nd_table
[0].used
) {
315 qemu_check_nic_model(&nd_table
[0], "xgmac");
316 dev
= qdev_create(NULL
, "xgmac");
317 qdev_set_nic_properties(dev
, &nd_table
[0]);
318 qdev_init_nofail(dev
);
319 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, 0xfff50000);
320 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, pic
[77]);
321 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 1, pic
[78]);
322 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 2, pic
[79]);
324 qemu_check_nic_model(&nd_table
[1], "xgmac");
325 dev
= qdev_create(NULL
, "xgmac");
326 qdev_set_nic_properties(dev
, &nd_table
[1]);
327 qdev_init_nofail(dev
);
328 sysbus_mmio_map(SYS_BUS_DEVICE(dev
), 0, 0xfff51000);
329 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 0, pic
[80]);
330 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 1, pic
[81]);
331 sysbus_connect_irq(SYS_BUS_DEVICE(dev
), 2, pic
[82]);
334 highbank_binfo
.ram_size
= ram_size
;
335 highbank_binfo
.kernel_filename
= kernel_filename
;
336 highbank_binfo
.kernel_cmdline
= kernel_cmdline
;
337 highbank_binfo
.initrd_filename
= initrd_filename
;
338 /* highbank requires a dtb in order to boot, and the dtb will override
339 * the board ID. The following value is ignored, so set it to -1 to be
340 * clear that the value is meaningless.
342 highbank_binfo
.board_id
= -1;
343 highbank_binfo
.nb_cpus
= smp_cpus
;
344 highbank_binfo
.loader_start
= 0;
345 highbank_binfo
.write_secondary_boot
= hb_write_secondary
;
346 highbank_binfo
.secondary_cpu_reset_hook
= hb_reset_secondary
;
347 arm_load_kernel(ARM_CPU(first_cpu
), &highbank_binfo
);
350 static void highbank_init(QEMUMachineInitArgs
*args
)
352 calxeda_init(args
, CALXEDA_HIGHBANK
);
355 static void midway_init(QEMUMachineInitArgs
*args
)
357 calxeda_init(args
, CALXEDA_MIDWAY
);
360 static QEMUMachine highbank_machine
= {
362 .desc
= "Calxeda Highbank (ECX-1000)",
363 .init
= highbank_init
,
364 .block_default_type
= IF_SCSI
,
366 DEFAULT_MACHINE_OPTIONS
,
369 static QEMUMachine midway_machine
= {
371 .desc
= "Calxeda Midway (ECX-2000)",
373 .block_default_type
= IF_SCSI
,
375 DEFAULT_MACHINE_OPTIONS
,
378 static void calxeda_machines_init(void)
380 qemu_register_machine(&highbank_machine
);
381 qemu_register_machine(&midway_machine
);
384 machine_init(calxeda_machines_init
);