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qemu-e2k/hw/arm/xlnx-zcu102.c

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/*
* Xilinx ZynqMP ZCU102 board
*
* Copyright (C) 2015 Xilinx Inc
* Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "hw/arm/xlnx-zynqmp.h"
#include "hw/boards.h"
#include "qemu/error-report.h"
#include "qemu/log.h"
#include "sysemu/device_tree.h"
#include "qom/object.h"
#include "net/can_emu.h"
struct XlnxZCU102 {
MachineState parent_obj;
XlnxZynqMPState soc;
bool secure;
bool virt;
CanBusState *canbus[XLNX_ZYNQMP_NUM_CAN];
struct arm_boot_info binfo;
};
#define TYPE_ZCU102_MACHINE MACHINE_TYPE_NAME("xlnx-zcu102")
OBJECT_DECLARE_SIMPLE_TYPE(XlnxZCU102, ZCU102_MACHINE)
static bool zcu102_get_secure(Object *obj, Error **errp)
{
XlnxZCU102 *s = ZCU102_MACHINE(obj);
return s->secure;
}
static void zcu102_set_secure(Object *obj, bool value, Error **errp)
{
XlnxZCU102 *s = ZCU102_MACHINE(obj);
s->secure = value;
}
static bool zcu102_get_virt(Object *obj, Error **errp)
{
XlnxZCU102 *s = ZCU102_MACHINE(obj);
return s->virt;
}
static void zcu102_set_virt(Object *obj, bool value, Error **errp)
{
XlnxZCU102 *s = ZCU102_MACHINE(obj);
s->virt = value;
}
static void zcu102_modify_dtb(const struct arm_boot_info *binfo, void *fdt)
{
XlnxZCU102 *s = container_of(binfo, XlnxZCU102, binfo);
bool method_is_hvc;
char **node_path;
const char *r;
int prop_len;
int i;
/* If EL3 is enabled, we keep all firmware nodes active. */
if (!s->secure) {
node_path = qemu_fdt_node_path(fdt, NULL, "xlnx,zynqmp-firmware",
&error_fatal);
for (i = 0; node_path && node_path[i]; i++) {
r = qemu_fdt_getprop(fdt, node_path[i], "method", &prop_len, NULL);
method_is_hvc = r && !strcmp("hvc", r);
/* Allow HVC based firmware if EL2 is enabled. */
if (method_is_hvc && s->virt) {
continue;
}
qemu_fdt_setprop_string(fdt, node_path[i], "status", "disabled");
}
g_strfreev(node_path);
}
}
static void bbram_attach_drive(XlnxBBRam *dev)
{
DriveInfo *dinfo;
BlockBackend *blk;
dinfo = drive_get_by_index(IF_PFLASH, 2);
blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
if (blk) {
qdev_prop_set_drive(DEVICE(dev), "drive", blk);
}
}
static void efuse_attach_drive(XlnxEFuse *dev)
{
DriveInfo *dinfo;
BlockBackend *blk;
dinfo = drive_get_by_index(IF_PFLASH, 3);
blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
if (blk) {
qdev_prop_set_drive(DEVICE(dev), "drive", blk);
}
}
static void xlnx_zcu102_init(MachineState *machine)
{
XlnxZCU102 *s = ZCU102_MACHINE(machine);
int i;
uint64_t ram_size = machine->ram_size;
/* Create the memory region to pass to the SoC */
if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
"0x%llx", ram_size,
XLNX_ZYNQMP_MAX_RAM_SIZE);
exit(1);
}
if (ram_size < 0x08000000) {
qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for ZCU102",
ram_size);
}
object_initialize_child(OBJECT(machine), "soc", &s->soc, TYPE_XLNX_ZYNQMP);
object_property_set_link(OBJECT(&s->soc), "ddr-ram", OBJECT(machine->ram),
&error_abort);
object_property_set_bool(OBJECT(&s->soc), "secure", s->secure,
&error_fatal);
object_property_set_bool(OBJECT(&s->soc), "virtualization", s->virt,
&error_fatal);
for (i = 0; i < XLNX_ZYNQMP_NUM_CAN; i++) {
gchar *bus_name = g_strdup_printf("canbus%d", i);
object_property_set_link(OBJECT(&s->soc), bus_name,
OBJECT(s->canbus[i]), &error_fatal);
g_free(bus_name);
}
qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
/* Attach bbram backend, if given */
bbram_attach_drive(&s->soc.bbram);
/* Attach efuse backend, if given */
efuse_attach_drive(&s->soc.efuse);
/* Create and plug in the SD cards */
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
BusState *bus;
DriveInfo *di = drive_get(IF_SD, 0, i);
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
DeviceState *carddev;
char *bus_name;
bus_name = g_strdup_printf("sd-bus%d", i);
bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
g_free(bus_name);
if (!bus) {
error_report("No SD bus found for SD card %d", i);
exit(1);
}
carddev = qdev_new(TYPE_SD_CARD);
qdev_prop_set_drive_err(carddev, "drive", blk, &error_fatal);
qdev_realize_and_unref(carddev, bus, &error_fatal);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
BusState *spi_bus;
DeviceState *flash_dev;
qemu_irq cs_line;
DriveInfo *dinfo = drive_get(IF_MTD, 0, i);
gchar *bus_name = g_strdup_printf("spi%d", i);
spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
g_free(bus_name);
flash_dev = qdev_new("sst25wf080");
if (dinfo) {
qdev_prop_set_drive_err(flash_dev, "drive",
blk_by_legacy_dinfo(dinfo), &error_fatal);
}
qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.spi[i]), 1, cs_line);
}
for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
BusState *spi_bus;
DeviceState *flash_dev;
qemu_irq cs_line;
DriveInfo *dinfo = drive_get(IF_MTD, 0, XLNX_ZYNQMP_NUM_SPIS + i);
int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
gchar *bus_name = g_strdup_printf("qspi%d", bus);
spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
g_free(bus_name);
flash_dev = qdev_new("n25q512a11");
if (dinfo) {
qdev_prop_set_drive_err(flash_dev, "drive",
blk_by_legacy_dinfo(dinfo), &error_fatal);
}
qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->soc.qspi), i + 1, cs_line);
}
/* TODO create and connect IDE devices for ide_drive_get() */
s->binfo.ram_size = ram_size;
s->binfo.loader_start = 0;
s->binfo.modify_dtb = zcu102_modify_dtb;
s->binfo.psci_conduit = QEMU_PSCI_CONDUIT_SMC;
arm_load_kernel(s->soc.boot_cpu_ptr, machine, &s->binfo);
}
static void xlnx_zcu102_machine_instance_init(Object *obj)
{
XlnxZCU102 *s = ZCU102_MACHINE(obj);
/* Default to secure mode being disabled */
s->secure = false;
/* Default to virt (EL2) being disabled */
s->virt = false;
object_property_add_link(obj, "canbus0", TYPE_CAN_BUS,
(Object **)&s->canbus[0],
object_property_allow_set_link,
0);
object_property_add_link(obj, "canbus1", TYPE_CAN_BUS,
(Object **)&s->canbus[1],
object_property_allow_set_link,
0);
}
static void xlnx_zcu102_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
mc->desc = "Xilinx ZynqMP ZCU102 board with 4xA53s and 2xR5Fs based on " \
"the value of smp";
mc->init = xlnx_zcu102_init;
mc->block_default_type = IF_IDE;
mc->units_per_default_bus = 1;
mc->ignore_memory_transaction_failures = true;
mc->max_cpus = XLNX_ZYNQMP_NUM_APU_CPUS + XLNX_ZYNQMP_NUM_RPU_CPUS;
mc->default_cpus = XLNX_ZYNQMP_NUM_APU_CPUS;
mc->default_ram_id = "ddr-ram";
object_class_property_add_bool(oc, "secure", zcu102_get_secure,
zcu102_set_secure);
object_class_property_set_description(oc, "secure",
"Set on/off to enable/disable the ARM "
"Security Extensions (TrustZone)");
object_class_property_add_bool(oc, "virtualization", zcu102_get_virt,
zcu102_set_virt);
object_class_property_set_description(oc, "virtualization",
"Set on/off to enable/disable emulating a "
"guest CPU which implements the ARM "
"Virtualization Extensions");
}
static const TypeInfo xlnx_zcu102_machine_init_typeinfo = {
.name = TYPE_ZCU102_MACHINE,
.parent = TYPE_MACHINE,
.class_init = xlnx_zcu102_machine_class_init,
.instance_init = xlnx_zcu102_machine_instance_init,
.instance_size = sizeof(XlnxZCU102),
};
static void xlnx_zcu102_machine_init_register_types(void)
{
type_register_static(&xlnx_zcu102_machine_init_typeinfo);
}
type_init(xlnx_zcu102_machine_init_register_types)
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