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/>.
29 #include "exec-memory.h"
31 #define SMP_BOOT_ADDR 0x100
32 #define SMP_BOOT_REG 0x40
33 #define GIC_BASE_ADDR 0xfff10000
39 static void hb_write_secondary(CPUARMState *env, const struct arm_boot_info *info)
42 uint32_t smpboot[] = {
43 0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
44 0xe210000f, /* ands r0, r0, #0x0f */
45 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
46 0xe0830200, /* add r0, r3, r0, lsl #4 */
47 0xe59f2018, /* ldr r2, privbase */
48 0xe3a01001, /* mov r1, #1 */
49 0xe5821100, /* str r1, [r2, #256] */
51 0xe5901000, /* ldr r1, [r0] */
52 0xe1110001, /* tst r1, r1 */
53 0x0afffffb, /* beq <wfi> */
54 0xe12fff11, /* bx r1 */
55 GIC_BASE_ADDR /* privbase: gic address. */
57 for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
58 smpboot[n] = tswap32(smpboot[n]);
60 rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
63 static void hb_reset_secondary(CPUARMState *env, const struct arm_boot_info *info)
65 switch (info->nb_cpus) {
67 stl_phys_notdirty(SMP_BOOT_REG + 0x30, 0);
69 stl_phys_notdirty(SMP_BOOT_REG + 0x20, 0);
71 stl_phys_notdirty(SMP_BOOT_REG + 0x10, 0);
72 env->regs[15] = SMP_BOOT_ADDR;
79 #define NUM_REGS 0x200
80 static void hb_regs_write(void *opaque, target_phys_addr_t offset,
81 uint64_t value, unsigned size)
83 uint32_t *regs = opaque;
85 if (offset == 0xf00) {
86 if (value == 1 || value == 2) {
87 qemu_system_reset_request();
88 } else if (value == 3) {
89 qemu_system_shutdown_request();
93 regs[offset/4] = value;
96 static uint64_t hb_regs_read(void *opaque, target_phys_addr_t offset,
99 uint32_t *regs = opaque;
100 uint32_t value = regs[offset/4];
102 if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
109 static const MemoryRegionOps hb_mem_ops = {
110 .read = hb_regs_read,
111 .write = hb_regs_write,
112 .endianness = DEVICE_NATIVE_ENDIAN,
118 uint32_t regs[NUM_REGS];
121 static VMStateDescription vmstate_highbank_regs = {
122 .name = "highbank-regs",
124 .minimum_version_id = 0,
125 .minimum_version_id_old = 0,
126 .fields = (VMStateField[]) {
127 VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
128 VMSTATE_END_OF_LIST(),
132 static void highbank_regs_reset(DeviceState *dev)
134 SysBusDevice *sys_dev = sysbus_from_qdev(dev);
135 HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, sys_dev);
137 s->regs[0x40] = 0x05F20121;
139 s->regs[0x42] = 0x05F30121;
140 s->regs[0x43] = 0x05F40121;
143 static int highbank_regs_init(SysBusDevice *dev)
145 HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, dev);
147 s->iomem = g_new(MemoryRegion, 1);
148 memory_region_init_io(s->iomem, &hb_mem_ops, s->regs, "highbank_regs",
150 sysbus_init_mmio(dev, s->iomem);
155 static void highbank_regs_class_init(ObjectClass *klass, void *data)
157 SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
158 DeviceClass *dc = DEVICE_CLASS(klass);
160 sbc->init = highbank_regs_init;
161 dc->desc = "Calxeda Highbank registers";
162 dc->vmsd = &vmstate_highbank_regs;
163 dc->reset = highbank_regs_reset;
166 static TypeInfo highbank_regs_info = {
167 .name = "highbank-regs",
168 .parent = TYPE_SYS_BUS_DEVICE,
169 .instance_size = sizeof(HighbankRegsState),
170 .class_init = highbank_regs_class_init,
173 static void highbank_regs_register_types(void)
175 type_register_static(&highbank_regs_info);
178 type_init(highbank_regs_register_types)
180 static struct arm_boot_info highbank_binfo;
182 /* ram_size must be set to match the upper bound of memory in the
183 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
184 * normally 0xff900000 or -m 4089. When running this board on a
185 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
186 * device tree and pass -m 2047 to QEMU.
188 static void highbank_init(ram_addr_t ram_size,
189 const char *boot_device,
190 const char *kernel_filename, const char *kernel_cmdline,
191 const char *initrd_filename, const char *cpu_model)
193 CPUARMState *env = NULL;
195 SysBusDevice *busdev;
200 MemoryRegion *sysram;
202 MemoryRegion *sysmem;
203 char *sysboot_filename;
206 cpu_model = "cortex-a9";
209 for (n = 0; n < smp_cpus; n++) {
211 cpu = cpu_arm_init(cpu_model);
213 fprintf(stderr, "Unable to find CPU definition\n");
217 /* This will become a QOM property eventually */
218 cpu->reset_cbar = GIC_BASE_ADDR;
219 irqp = arm_pic_init_cpu(env);
220 cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
223 sysmem = get_system_memory();
224 dram = g_new(MemoryRegion, 1);
225 memory_region_init_ram(dram, "highbank.dram", ram_size);
226 /* SDRAM at address zero. */
227 memory_region_add_subregion(sysmem, 0, dram);
229 sysram = g_new(MemoryRegion, 1);
230 memory_region_init_ram(sysram, "highbank.sysram", 0x8000);
231 memory_region_add_subregion(sysmem, 0xfff88000, sysram);
232 if (bios_name != NULL) {
233 sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
234 if (sysboot_filename != NULL) {
235 uint32_t filesize = get_image_size(sysboot_filename);
236 if (load_image_targphys("sysram.bin", 0xfff88000, filesize) < 0) {
237 hw_error("Unable to load %s\n", bios_name);
240 hw_error("Unable to find %s\n", bios_name);
244 dev = qdev_create(NULL, "a9mpcore_priv");
245 qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
246 qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
247 qdev_init_nofail(dev);
248 busdev = sysbus_from_qdev(dev);
249 sysbus_mmio_map(busdev, 0, GIC_BASE_ADDR);
250 for (n = 0; n < smp_cpus; n++) {
251 sysbus_connect_irq(busdev, n, cpu_irq[n]);
254 for (n = 0; n < 128; n++) {
255 pic[n] = qdev_get_gpio_in(dev, n);
258 dev = qdev_create(NULL, "l2x0");
259 qdev_init_nofail(dev);
260 busdev = sysbus_from_qdev(dev);
261 sysbus_mmio_map(busdev, 0, 0xfff12000);
263 dev = qdev_create(NULL, "sp804");
264 qdev_prop_set_uint32(dev, "freq0", 150000000);
265 qdev_prop_set_uint32(dev, "freq1", 150000000);
266 qdev_init_nofail(dev);
267 busdev = sysbus_from_qdev(dev);
268 sysbus_mmio_map(busdev, 0, 0xfff34000);
269 sysbus_connect_irq(busdev, 0, pic[18]);
270 sysbus_create_simple("pl011", 0xfff36000, pic[20]);
272 dev = qdev_create(NULL, "highbank-regs");
273 qdev_init_nofail(dev);
274 busdev = sysbus_from_qdev(dev);
275 sysbus_mmio_map(busdev, 0, 0xfff3c000);
277 sysbus_create_simple("pl061", 0xfff30000, pic[14]);
278 sysbus_create_simple("pl061", 0xfff31000, pic[15]);
279 sysbus_create_simple("pl061", 0xfff32000, pic[16]);
280 sysbus_create_simple("pl061", 0xfff33000, pic[17]);
281 sysbus_create_simple("pl031", 0xfff35000, pic[19]);
282 sysbus_create_simple("pl022", 0xfff39000, pic[23]);
284 sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
286 if (nd_table[0].vlan) {
287 qemu_check_nic_model(&nd_table[0], "xgmac");
288 dev = qdev_create(NULL, "xgmac");
289 qdev_set_nic_properties(dev, &nd_table[0]);
290 qdev_init_nofail(dev);
291 sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff50000);
292 sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[77]);
293 sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[78]);
294 sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[79]);
296 qemu_check_nic_model(&nd_table[1], "xgmac");
297 dev = qdev_create(NULL, "xgmac");
298 qdev_set_nic_properties(dev, &nd_table[1]);
299 qdev_init_nofail(dev);
300 sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff51000);
301 sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[80]);
302 sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[81]);
303 sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[82]);
306 highbank_binfo.ram_size = ram_size;
307 highbank_binfo.kernel_filename = kernel_filename;
308 highbank_binfo.kernel_cmdline = kernel_cmdline;
309 highbank_binfo.initrd_filename = initrd_filename;
310 /* highbank requires a dtb in order to boot, and the dtb will override
311 * the board ID. The following value is ignored, so set it to -1 to be
312 * clear that the value is meaningless.
314 highbank_binfo.board_id = -1;
315 highbank_binfo.nb_cpus = smp_cpus;
316 highbank_binfo.loader_start = 0;
317 highbank_binfo.write_secondary_boot = hb_write_secondary;
318 highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
319 arm_load_kernel(first_cpu, &highbank_binfo);
322 static QEMUMachine highbank_machine = {
324 .desc = "Calxeda Highbank (ECX-1000)",
325 .init = highbank_init,
330 static void highbank_machine_init(void)
332 qemu_register_machine(&highbank_machine);
335 machine_init(highbank_machine_init);