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
38 static void highbank_cpu_reset(void *opaque)
40 CPUARMState *env = opaque;
42 env->cp15.c15_config_base_address = GIC_BASE_ADDR;
45 static void hb_write_secondary(CPUARMState *env, const struct arm_boot_info *info)
48 uint32_t smpboot[] = {
49 0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
50 0xe210000f, /* ands r0, r0, #0x0f */
51 0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
52 0xe0830200, /* add r0, r3, r0, lsl #4 */
53 0xe59f2018, /* ldr r2, privbase */
54 0xe3a01001, /* mov r1, #1 */
55 0xe5821100, /* str r1, [r2, #256] */
57 0xe5901000, /* ldr r1, [r0] */
58 0xe1110001, /* tst r1, r1 */
59 0x0afffffb, /* beq <wfi> */
60 0xe12fff11, /* bx r1 */
61 GIC_BASE_ADDR /* privbase: gic address. */
63 for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
64 smpboot[n] = tswap32(smpboot[n]);
66 rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
69 static void hb_reset_secondary(CPUARMState *env, const struct arm_boot_info *info)
71 switch (info->nb_cpus) {
73 stl_phys_notdirty(SMP_BOOT_REG + 0x30, 0);
75 stl_phys_notdirty(SMP_BOOT_REG + 0x20, 0);
77 stl_phys_notdirty(SMP_BOOT_REG + 0x10, 0);
78 env->regs[15] = SMP_BOOT_ADDR;
85 #define NUM_REGS 0x200
86 static void hb_regs_write(void *opaque, target_phys_addr_t offset,
87 uint64_t value, unsigned size)
89 uint32_t *regs = opaque;
91 if (offset == 0xf00) {
92 if (value == 1 || value == 2) {
93 qemu_system_reset_request();
94 } else if (value == 3) {
95 qemu_system_shutdown_request();
99 regs[offset/4] = value;
102 static uint64_t hb_regs_read(void *opaque, target_phys_addr_t offset,
105 uint32_t *regs = opaque;
106 uint32_t value = regs[offset/4];
108 if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
115 static const MemoryRegionOps hb_mem_ops = {
116 .read = hb_regs_read,
117 .write = hb_regs_write,
118 .endianness = DEVICE_NATIVE_ENDIAN,
124 uint32_t regs[NUM_REGS];
127 static VMStateDescription vmstate_highbank_regs = {
128 .name = "highbank-regs",
130 .minimum_version_id = 0,
131 .minimum_version_id_old = 0,
132 .fields = (VMStateField[]) {
133 VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
134 VMSTATE_END_OF_LIST(),
138 static void highbank_regs_reset(DeviceState *dev)
140 SysBusDevice *sys_dev = sysbus_from_qdev(dev);
141 HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, sys_dev);
143 s->regs[0x40] = 0x05F20121;
145 s->regs[0x42] = 0x05F30121;
146 s->regs[0x43] = 0x05F40121;
149 static int highbank_regs_init(SysBusDevice *dev)
151 HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, dev);
153 s->iomem = g_new(MemoryRegion, 1);
154 memory_region_init_io(s->iomem, &hb_mem_ops, s->regs, "highbank_regs",
156 sysbus_init_mmio(dev, s->iomem);
161 static void highbank_regs_class_init(ObjectClass *klass, void *data)
163 SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
164 DeviceClass *dc = DEVICE_CLASS(klass);
166 sbc->init = highbank_regs_init;
167 dc->desc = "Calxeda Highbank registers";
168 dc->vmsd = &vmstate_highbank_regs;
169 dc->reset = highbank_regs_reset;
172 static TypeInfo highbank_regs_info = {
173 .name = "highbank-regs",
174 .parent = TYPE_SYS_BUS_DEVICE,
175 .instance_size = sizeof(HighbankRegsState),
176 .class_init = highbank_regs_class_init,
179 static void highbank_regs_register_types(void)
181 type_register_static(&highbank_regs_info);
184 type_init(highbank_regs_register_types)
186 static struct arm_boot_info highbank_binfo;
188 /* ram_size must be set to match the upper bound of memory in the
189 * device tree (linux/arch/arm/boot/dts/highbank.dts), which is
190 * normally 0xff900000 or -m 4089. When running this board on a
191 * 32-bit host, set the reg value of memory to 0xf7ff00000 in the
192 * device tree and pass -m 2047 to QEMU.
194 static void highbank_init(ram_addr_t ram_size,
195 const char *boot_device,
196 const char *kernel_filename, const char *kernel_cmdline,
197 const char *initrd_filename, const char *cpu_model)
199 CPUARMState *env = NULL;
201 SysBusDevice *busdev;
206 MemoryRegion *sysram;
208 MemoryRegion *sysmem;
209 char *sysboot_filename;
212 cpu_model = "cortex-a9";
215 for (n = 0; n < smp_cpus; n++) {
216 env = cpu_init(cpu_model);
218 fprintf(stderr, "Unable to find CPU definition\n");
221 irqp = arm_pic_init_cpu(env);
222 cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
223 qemu_register_reset(highbank_cpu_reset, env);
226 sysmem = get_system_memory();
227 dram = g_new(MemoryRegion, 1);
228 memory_region_init_ram(dram, "highbank.dram", ram_size);
229 /* SDRAM at address zero. */
230 memory_region_add_subregion(sysmem, 0, dram);
232 sysram = g_new(MemoryRegion, 1);
233 memory_region_init_ram(sysram, "highbank.sysram", 0x8000);
234 memory_region_add_subregion(sysmem, 0xfff88000, sysram);
235 if (bios_name != NULL) {
236 sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
237 if (sysboot_filename != NULL) {
238 uint32_t filesize = get_image_size(sysboot_filename);
239 if (load_image_targphys("sysram.bin", 0xfff88000, filesize) < 0) {
240 hw_error("Unable to load %s\n", bios_name);
243 hw_error("Unable to find %s\n", bios_name);
247 dev = qdev_create(NULL, "a9mpcore_priv");
248 qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
249 qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
250 qdev_init_nofail(dev);
251 busdev = sysbus_from_qdev(dev);
252 sysbus_mmio_map(busdev, 0, GIC_BASE_ADDR);
253 for (n = 0; n < smp_cpus; n++) {
254 sysbus_connect_irq(busdev, n, cpu_irq[n]);
257 for (n = 0; n < 128; n++) {
258 pic[n] = qdev_get_gpio_in(dev, n);
261 dev = qdev_create(NULL, "l2x0");
262 qdev_init_nofail(dev);
263 busdev = sysbus_from_qdev(dev);
264 sysbus_mmio_map(busdev, 0, 0xfff12000);
266 dev = qdev_create(NULL, "sp804");
267 qdev_prop_set_uint32(dev, "freq0", 150000000);
268 qdev_prop_set_uint32(dev, "freq1", 150000000);
269 qdev_init_nofail(dev);
270 busdev = sysbus_from_qdev(dev);
271 sysbus_mmio_map(busdev, 0, 0xfff34000);
272 sysbus_connect_irq(busdev, 0, pic[18]);
273 sysbus_create_simple("pl011", 0xfff36000, pic[20]);
275 dev = qdev_create(NULL, "highbank-regs");
276 qdev_init_nofail(dev);
277 busdev = sysbus_from_qdev(dev);
278 sysbus_mmio_map(busdev, 0, 0xfff3c000);
280 sysbus_create_simple("pl061", 0xfff30000, pic[14]);
281 sysbus_create_simple("pl061", 0xfff31000, pic[15]);
282 sysbus_create_simple("pl061", 0xfff32000, pic[16]);
283 sysbus_create_simple("pl061", 0xfff33000, pic[17]);
284 sysbus_create_simple("pl031", 0xfff35000, pic[19]);
285 sysbus_create_simple("pl022", 0xfff39000, pic[23]);
287 sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
289 if (nd_table[0].vlan) {
290 qemu_check_nic_model(&nd_table[0], "xgmac");
291 dev = qdev_create(NULL, "xgmac");
292 qdev_set_nic_properties(dev, &nd_table[0]);
293 qdev_init_nofail(dev);
294 sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff50000);
295 sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[77]);
296 sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[78]);
297 sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[79]);
299 qemu_check_nic_model(&nd_table[1], "xgmac");
300 dev = qdev_create(NULL, "xgmac");
301 qdev_set_nic_properties(dev, &nd_table[1]);
302 qdev_init_nofail(dev);
303 sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff51000);
304 sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[80]);
305 sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[81]);
306 sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[82]);
309 highbank_binfo.ram_size = ram_size;
310 highbank_binfo.kernel_filename = kernel_filename;
311 highbank_binfo.kernel_cmdline = kernel_cmdline;
312 highbank_binfo.initrd_filename = initrd_filename;
313 /* highbank requires a dtb in order to boot, and the dtb will override
314 * the board ID. The following value is ignored, so set it to -1 to be
315 * clear that the value is meaningless.
317 highbank_binfo.board_id = -1;
318 highbank_binfo.nb_cpus = smp_cpus;
319 highbank_binfo.loader_start = 0;
320 highbank_binfo.write_secondary_boot = hb_write_secondary;
321 highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
322 arm_load_kernel(first_cpu, &highbank_binfo);
325 static QEMUMachine highbank_machine = {
327 .desc = "Calxeda Highbank (ECX-1000)",
328 .init = highbank_init,
333 static void highbank_machine_init(void)
335 qemu_register_machine(&highbank_machine);
338 machine_init(highbank_machine_init);