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qemu/hw/arm/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 "hw/sysbus.h"
#include "hw/arm/arm.h"
#include "hw/devices.h"
#include "hw/loader.h"
#include "net/net.h"
#include "sysemu/kvm.h"
#include "sysemu/sysemu.h"
#include "hw/boards.h"
#include "sysemu/block-backend.h"
#include "exec/address-spaces.h"
#include "qemu/error-report.h"
#define SMP_BOOT_ADDR 0x100
#define SMP_BOOT_REG 0x40
#define MPCORE_PERIPHBASE 0xfff10000
#define MVBAR_ADDR 0x200
#define NIRQ_GIC 160
/* Board init. */
/* MVBAR_ADDR is limited by precision of movw */
QEMU_BUILD_BUG_ON(MVBAR_ADDR >= (1 << 16));
#define ARMV7_IMM16(x) (extract32((x), 0, 12) | \
extract32((x), 12, 4) << 16)
static void hb_write_board_setup(ARMCPU *cpu,
const struct arm_boot_info *info)
{
int n;
uint32_t board_setup_blob[] = {
/* MVBAR_ADDR */
/* Default unimplemented and unused vectors to spin. Makes it
* easier to debug (as opposed to the CPU running away).
*/
0xeafffffe, /* notused1: b notused */
0xeafffffe, /* notused2: b notused */
0xe1b0f00e, /* smc: movs pc, lr - exception return */
0xeafffffe, /* prefetch_abort: b prefetch_abort */
0xeafffffe, /* data_abort: b data_abort */
0xeafffffe, /* notused3: b notused3 */
0xeafffffe, /* irq: b irq */
0xeafffffe, /* fiq: b fiq */
#define BOARD_SETUP_ADDR (MVBAR_ADDR + 8 * sizeof(uint32_t))
0xe3000000 + ARMV7_IMM16(MVBAR_ADDR), /* movw r0, MVBAR_ADDR */
0xee0c0f30, /* mcr p15, 0, r0, c12, c0, 1 - set MVBAR */
0xee110f11, /* mrc p15, 0, r0, c1 , c1, 0 - get SCR */
0xe3810001, /* orr r0, #1 - set NS */
0xee010f11, /* mcr p15, 0, r0, c1 , c1, 0 - set SCR */
0xe1600070, /* smc - go to monitor mode to flush NS change */
0xe12fff1e, /* bx lr - return to caller */
};
for (n = 0; n < ARRAY_SIZE(board_setup_blob); n++) {
board_setup_blob[n] = tswap32(board_setup_blob[n]);
}
rom_add_blob_fixed("board-setup", board_setup_blob,
sizeof(board_setup_blob), MVBAR_ADDR);
}
static void hb_write_secondary(ARMCPU *cpu, 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 */
0xe59f2024, /* ldr r2, privbase */
0xe3a01001, /* mov r1, #1 */
0xe5821100, /* str r1, [r2, #256] - set GICC_CTLR.Enable */
0xe3a010ff, /* mov r1, #0xff */
0xe5821104, /* str r1, [r2, #260] - set GICC_PMR.Priority to 0xff */
0xf57ff04f, /* dsb */
0xe320f003, /* wfi */
0xe5901000, /* ldr r1, [r0] */
0xe1110001, /* tst r1, r1 */
0x0afffffb, /* beq <wfi> */
0xe12fff11, /* bx r1 */
MPCORE_PERIPHBASE /* privbase: MPCore peripheral base 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(ARMCPU *cpu, const struct arm_boot_info *info)
{
CPUARMState *env = &cpu->env;
switch (info->nb_cpus) {
case 4:
address_space_stl_notdirty(&address_space_memory,
SMP_BOOT_REG + 0x30, 0,
MEMTXATTRS_UNSPECIFIED, NULL);
case 3:
address_space_stl_notdirty(&address_space_memory,
SMP_BOOT_REG + 0x20, 0,
MEMTXATTRS_UNSPECIFIED, NULL);
case 2:
address_space_stl_notdirty(&address_space_memory,
SMP_BOOT_REG + 0x10, 0,
MEMTXATTRS_UNSPECIFIED, NULL);
env->regs[15] = SMP_BOOT_ADDR;
break;
default:
break;
}
}
#define NUM_REGS 0x200
static void hb_regs_write(void *opaque, hwaddr 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, hwaddr 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,
};
#define TYPE_HIGHBANK_REGISTERS "highbank-regs"
#define HIGHBANK_REGISTERS(obj) \
OBJECT_CHECK(HighbankRegsState, (obj), TYPE_HIGHBANK_REGISTERS)
typedef struct {
/*< private >*/
SysBusDevice parent_obj;
/*< public >*/
MemoryRegion iomem;
uint32_t regs[NUM_REGS];
} HighbankRegsState;
static VMStateDescription vmstate_highbank_regs = {
.name = "highbank-regs",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_UINT32_ARRAY(regs, HighbankRegsState, NUM_REGS),
VMSTATE_END_OF_LIST(),
},
};
static void highbank_regs_reset(DeviceState *dev)
{
HighbankRegsState *s = HIGHBANK_REGISTERS(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 = HIGHBANK_REGISTERS(dev);
memory_region_init_io(&s->iomem, OBJECT(s), &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 const TypeInfo highbank_regs_info = {
.name = TYPE_HIGHBANK_REGISTERS,
.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;
enum cxmachines {
CALXEDA_HIGHBANK,
CALXEDA_MIDWAY,
};
/* 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 calxeda_init(MachineState *machine, enum cxmachines machine_id)
{
ram_addr_t ram_size = machine->ram_size;
const char *cpu_model = machine->cpu_model;
const char *kernel_filename = machine->kernel_filename;
const char *kernel_cmdline = machine->kernel_cmdline;
const char *initrd_filename = machine->initrd_filename;
DeviceState *dev = NULL;
SysBusDevice *busdev;
qemu_irq pic[128];
int n;
qemu_irq cpu_irq[4];
qemu_irq cpu_fiq[4];
MemoryRegion *sysram;
MemoryRegion *dram;
MemoryRegion *sysmem;
char *sysboot_filename;
switch (machine_id) {
case CALXEDA_HIGHBANK:
cpu_model = "cortex-a9";
break;
case CALXEDA_MIDWAY:
cpu_model = "cortex-a15";
break;
}
for (n = 0; n < smp_cpus; n++) {
ObjectClass *oc = cpu_class_by_name(TYPE_ARM_CPU, cpu_model);
Object *cpuobj;
ARMCPU *cpu;
Error *err = NULL;
cpuobj = object_new(object_class_get_name(oc));
cpu = ARM_CPU(cpuobj);
object_property_set_int(cpuobj, QEMU_PSCI_CONDUIT_SMC,
"psci-conduit", &error_abort);
if (n) {
/* Secondary CPUs start in PSCI powered-down state */
object_property_set_bool(cpuobj, true,
"start-powered-off", &error_abort);
}
if (object_property_find(cpuobj, "reset-cbar", NULL)) {
object_property_set_int(cpuobj, MPCORE_PERIPHBASE,
"reset-cbar", &error_abort);
}
object_property_set_bool(cpuobj, true, "realized", &err);
if (err) {
error_report_err(err);
exit(1);
}
cpu_irq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_IRQ);
cpu_fiq[n] = qdev_get_gpio_in(DEVICE(cpu), ARM_CPU_FIQ);
}
sysmem = get_system_memory();
dram = g_new(MemoryRegion, 1);
memory_region_allocate_system_memory(dram, NULL, "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, NULL, "highbank.sysram", 0x8000,
&error_fatal);
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) {
if (load_image_targphys(sysboot_filename, 0xfff88000, 0x8000) < 0) {
hw_error("Unable to load %s\n", bios_name);
}
g_free(sysboot_filename);
} else {
hw_error("Unable to find %s\n", bios_name);
}
}
switch (machine_id) {
case CALXEDA_HIGHBANK:
dev = qdev_create(NULL, "l2x0");
qdev_init_nofail(dev);
busdev = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(busdev, 0, 0xfff12000);
dev = qdev_create(NULL, "a9mpcore_priv");
break;
case CALXEDA_MIDWAY:
dev = qdev_create(NULL, "a15mpcore_priv");
break;
}
qdev_prop_set_uint32(dev, "num-cpu", smp_cpus);
qdev_prop_set_uint32(dev, "num-irq", NIRQ_GIC);
qdev_init_nofail(dev);
busdev = SYS_BUS_DEVICE(dev);
sysbus_mmio_map(busdev, 0, MPCORE_PERIPHBASE);
for (n = 0; n < smp_cpus; n++) {
sysbus_connect_irq(busdev, n, cpu_irq[n]);
sysbus_connect_irq(busdev, n + smp_cpus, cpu_fiq[n]);
}
for (n = 0; n < 128; n++) {
pic[n] = qdev_get_gpio_in(dev, n);
}
dev = qdev_create(NULL, "sp804");
qdev_prop_set_uint32(dev, "freq0", 150000000);
qdev_prop_set_uint32(dev, "freq1", 150000000);
qdev_init_nofail(dev);
busdev = SYS_BUS_DEVICE(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 = SYS_BUS_DEVICE(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].used) {
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(SYS_BUS_DEVICE(dev), 0, 0xfff50000);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[77]);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[78]);
sysbus_connect_irq(SYS_BUS_DEVICE(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(SYS_BUS_DEVICE(dev), 0, 0xfff51000);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[80]);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 1, pic[81]);
sysbus_connect_irq(SYS_BUS_DEVICE(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;
if (!kvm_enabled()) {
highbank_binfo.board_setup_addr = BOARD_SETUP_ADDR;
highbank_binfo.write_board_setup = hb_write_board_setup;
highbank_binfo.secure_board_setup = true;
} else {
error_report("WARNING: cannot load built-in Monitor support "
"if KVM is enabled. Some guests (such as Linux) "
"may not boot.");
}
arm_load_kernel(ARM_CPU(first_cpu), &highbank_binfo);
}
static void highbank_init(MachineState *machine)
{
calxeda_init(machine, CALXEDA_HIGHBANK);
}
static void midway_init(MachineState *machine)
{
calxeda_init(machine, CALXEDA_MIDWAY);
}
static void highbank_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Calxeda Highbank (ECX-1000)";
mc->init = highbank_init;
mc->block_default_type = IF_SCSI;
mc->max_cpus = 4;
}
static const TypeInfo highbank_type = {
.name = MACHINE_TYPE_NAME("highbank"),
.parent = TYPE_MACHINE,
.class_init = highbank_class_init,
};
static void midway_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Calxeda Midway (ECX-2000)";
mc->init = midway_init;
mc->block_default_type = IF_SCSI;
mc->max_cpus = 4;
}
static const TypeInfo midway_type = {
.name = MACHINE_TYPE_NAME("midway"),
.parent = TYPE_MACHINE,
.class_init = midway_class_init,
};
static void calxeda_machines_init(void)
{
type_register_static(&highbank_type);
type_register_static(&midway_type);
}
machine_init(calxeda_machines_init)
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