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qemu/hw/highbank.c

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/*
* Calxeda Highbank SoC emulation
*
* Copyright (c) 2010-2012 Calxeda
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2 or later, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "sysbus.h"
#include "arm-misc.h"
#include "devices.h"
#include "loader.h"
#include "net.h"
#include "sysemu.h"
#include "boards.h"
#include "sysbus.h"
#include "blockdev.h"
#include "exec-memory.h"
#define SMP_BOOT_ADDR 0x100
#define SMP_BOOT_REG 0x40
#define GIC_BASE_ADDR 0xfff10000
#define NIRQ_GIC 160
/* Board init. */
static void hb_write_secondary(CPUARMState *env, const struct arm_boot_info *info)
{
int n;
uint32_t smpboot[] = {
0xee100fb0, /* mrc p15, 0, r0, c0, c0, 5 - read current core id */
0xe210000f, /* ands r0, r0, #0x0f */
0xe3a03040, /* mov r3, #0x40 - jump address is 0x40 + 0x10 * core id */
0xe0830200, /* add r0, r3, r0, lsl #4 */
0xe59f2018, /* ldr r2, privbase */
0xe3a01001, /* mov r1, #1 */
0xe5821100, /* str r1, [r2, #256] */
0xe320f003, /* wfi */
0xe5901000, /* ldr r1, [r0] */
0xe1110001, /* tst r1, r1 */
0x0afffffb, /* beq <wfi> */
0xe12fff11, /* bx r1 */
GIC_BASE_ADDR /* privbase: gic address. */
};
for (n = 0; n < ARRAY_SIZE(smpboot); n++) {
smpboot[n] = tswap32(smpboot[n]);
}
rom_add_blob_fixed("smpboot", smpboot, sizeof(smpboot), SMP_BOOT_ADDR);
}
static void hb_reset_secondary(CPUARMState *env, const struct arm_boot_info *info)
{
switch (info->nb_cpus) {
case 4:
stl_phys_notdirty(SMP_BOOT_REG + 0x30, 0);
case 3:
stl_phys_notdirty(SMP_BOOT_REG + 0x20, 0);
case 2:
stl_phys_notdirty(SMP_BOOT_REG + 0x10, 0);
env->regs[15] = SMP_BOOT_ADDR;
break;
default:
break;
}
}
#define NUM_REGS 0x200
static void hb_regs_write(void *opaque, target_phys_addr_t offset,
uint64_t value, unsigned size)
{
uint32_t *regs = opaque;
if (offset == 0xf00) {
if (value == 1 || value == 2) {
qemu_system_reset_request();
} else if (value == 3) {
qemu_system_shutdown_request();
}
}
regs[offset/4] = value;
}
static uint64_t hb_regs_read(void *opaque, target_phys_addr_t offset,
unsigned size)
{
uint32_t *regs = opaque;
uint32_t value = regs[offset/4];
if ((offset == 0x100) || (offset == 0x108) || (offset == 0x10C)) {
value |= 0x30000000;
}
return value;
}
static const MemoryRegionOps hb_mem_ops = {
.read = hb_regs_read,
.write = hb_regs_write,
.endianness = DEVICE_NATIVE_ENDIAN,
};
typedef struct {
SysBusDevice busdev;
MemoryRegion *iomem;
uint32_t regs[NUM_REGS];
} HighbankRegsState;
static VMStateDescription vmstate_highbank_regs = {
.name = "highbank-regs",
.version_id = 0,
.minimum_version_id = 0,
.minimum_version_id_old = 0,
.fields = (VMStateField[]) {
VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
VMSTATE_END_OF_LIST(),
},
};
static void highbank_regs_reset(DeviceState *dev)
{
SysBusDevice *sys_dev = sysbus_from_qdev(dev);
HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, sys_dev);
s->regs[0x40] = 0x05F20121;
s->regs[0x41] = 0x2;
s->regs[0x42] = 0x05F30121;
s->regs[0x43] = 0x05F40121;
}
static int highbank_regs_init(SysBusDevice *dev)
{
HighbankRegsState *s = FROM_SYSBUS(HighbankRegsState, dev);
s->iomem = g_new(MemoryRegion, 1);
memory_region_init_io(s->iomem, &hb_mem_ops, s->regs, "highbank_regs",
0x1000);
sysbus_init_mmio(dev, s->iomem);
return 0;
}
static void highbank_regs_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sbc = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
sbc->init = highbank_regs_init;
dc->desc = "Calxeda Highbank registers";
dc->vmsd = &vmstate_highbank_regs;
dc->reset = highbank_regs_reset;
}
static TypeInfo highbank_regs_info = {
.name = "highbank-regs",
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(HighbankRegsState),
.class_init = highbank_regs_class_init,
};
static void highbank_regs_register_types(void)
{
type_register_static(&highbank_regs_info);
}
type_init(highbank_regs_register_types)
static struct arm_boot_info highbank_binfo;
/* ram_size must be set to match the upper bound of memory in the
* device tree (linux/arch/arm/boot/dts/highbank.dts), which is
* normally 0xff900000 or -m 4089. When running this board on a
* 32-bit host, set the reg value of memory to 0xf7ff00000 in the
* device tree and pass -m 2047 to QEMU.
*/
static void highbank_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)
{
CPUARMState *env = NULL;
DeviceState *dev;
SysBusDevice *busdev;
qemu_irq *irqp;
qemu_irq pic[128];
int n;
qemu_irq cpu_irq[4];
MemoryRegion *sysram;
MemoryRegion *dram;
MemoryRegion *sysmem;
char *sysboot_filename;
if (!cpu_model) {
cpu_model = "cortex-a9";
}
for (n = 0; n < smp_cpus; n++) {
ARMCPU *cpu;
cpu = cpu_arm_init(cpu_model);
if (cpu == NULL) {
fprintf(stderr, "Unable to find CPU definition\n");
exit(1);
}
env = &cpu->env;
/* This will become a QOM property eventually */
cpu->reset_cbar = GIC_BASE_ADDR;
irqp = arm_pic_init_cpu(env);
cpu_irq[n] = irqp[ARM_PIC_CPU_IRQ];
}
sysmem = get_system_memory();
dram = g_new(MemoryRegion, 1);
memory_region_init_ram(dram, "highbank.dram", ram_size);
/* SDRAM at address zero. */
memory_region_add_subregion(sysmem, 0, dram);
sysram = g_new(MemoryRegion, 1);
memory_region_init_ram(sysram, "highbank.sysram", 0x8000);
memory_region_add_subregion(sysmem, 0xfff88000, sysram);
if (bios_name != NULL) {
sysboot_filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name);
if (sysboot_filename != NULL) {
uint32_t filesize = get_image_size(sysboot_filename);
if (load_image_targphys("sysram.bin", 0xfff88000, filesize) < 0) {
hw_error("Unable to load %s\n", bios_name);
}
} else {
hw_error("Unable to find %s\n", bios_name);
}
}
dev = qdev_create(NULL, "a9mpcore_priv");
qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, GIC_BASE_ADDR);
for (n = 0; n < smp_cpus; n++) {
sysbus_connect_irq(busdev, n, cpu_irq[n]);
}
for (n = 0; n < 128; n++) {
pic[n] = qdev_get_gpio_in(dev, n);
}
dev = qdev_create(NULL, "l2x0");
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff12000);
dev = qdev_create(NULL, "sp804");
qdev_prop_set_uint32(dev, "freq0", 150000000);
qdev_prop_set_uint32(dev, "freq1", 150000000);
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff34000);
sysbus_connect_irq(busdev, 0, pic[18]);
sysbus_create_simple("pl011", 0xfff36000, pic[20]);
dev = qdev_create(NULL, "highbank-regs");
qdev_init_nofail(dev);
busdev = sysbus_from_qdev(dev);
sysbus_mmio_map(busdev, 0, 0xfff3c000);
sysbus_create_simple("pl061", 0xfff30000, pic[14]);
sysbus_create_simple("pl061", 0xfff31000, pic[15]);
sysbus_create_simple("pl061", 0xfff32000, pic[16]);
sysbus_create_simple("pl061", 0xfff33000, pic[17]);
sysbus_create_simple("pl031", 0xfff35000, pic[19]);
sysbus_create_simple("pl022", 0xfff39000, pic[23]);
sysbus_create_simple("sysbus-ahci", 0xffe08000, pic[83]);
if (nd_table[0].vlan) {
qemu_check_nic_model(&nd_table[0], "xgmac");
dev = qdev_create(NULL, "xgmac");
qdev_set_nic_properties(dev, &nd_table[0]);
qdev_init_nofail(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff50000);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[77]);
sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[78]);
sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[79]);
qemu_check_nic_model(&nd_table[1], "xgmac");
dev = qdev_create(NULL, "xgmac");
qdev_set_nic_properties(dev, &nd_table[1]);
qdev_init_nofail(dev);
sysbus_mmio_map(sysbus_from_qdev(dev), 0, 0xfff51000);
sysbus_connect_irq(sysbus_from_qdev(dev), 0, pic[80]);
sysbus_connect_irq(sysbus_from_qdev(dev), 1, pic[81]);
sysbus_connect_irq(sysbus_from_qdev(dev), 2, pic[82]);
}
highbank_binfo.ram_size = ram_size;
highbank_binfo.kernel_filename = kernel_filename;
highbank_binfo.kernel_cmdline = kernel_cmdline;
highbank_binfo.initrd_filename = initrd_filename;
/* highbank requires a dtb in order to boot, and the dtb will override
* the board ID. The following value is ignored, so set it to -1 to be
* clear that the value is meaningless.
*/
highbank_binfo.board_id = -1;
highbank_binfo.nb_cpus = smp_cpus;
highbank_binfo.loader_start = 0;
highbank_binfo.write_secondary_boot = hb_write_secondary;
highbank_binfo.secondary_cpu_reset_hook = hb_reset_secondary;
arm_load_kernel(first_cpu, &highbank_binfo);
}
static QEMUMachine highbank_machine = {
.name = "highbank",
.desc = "Calxeda Highbank (ECX-1000)",
.init = highbank_init,
.use_scsi = 1,
.max_cpus = 4,
};
static void highbank_machine_init(void)
{
qemu_register_machine(&highbank_machine);
}
machine_init(highbank_machine_init);
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