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/*
* Model of Petalogix linux reference design targeting Xilinx Spartan 3ADSP-1800
* boards.
*
* Copyright (c) 2009 Edgar E. Iglesias.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "cpu.h"
#include "hw/sysbus.h"
#include "net/net.h"
#include "hw/block/flash.h"
#include "system/system.h"
#include "hw/boards.h"
#include "hw/misc/unimp.h"
#include "system/address-spaces.h"
#include "hw/char/xilinx_uartlite.h"
#include "boot.h"
#define LMB_BRAM_SIZE (128 * KiB)
#define FLASH_SIZE (16 * MiB)
#define BINARY_DEVICE_TREE_FILE "petalogix-s3adsp1800.dtb"
#define MEMORY_BASEADDR 0x90000000
#define FLASH_BASEADDR 0xa0000000
#define GPIO_BASEADDR 0x81400000
#define INTC_BASEADDR 0x81800000
#define TIMER_BASEADDR 0x83c00000
#define UARTLITE_BASEADDR 0x84000000
#define ETHLITE_BASEADDR 0x81000000
#define TIMER_IRQ 0
#define ETHLITE_IRQ 1
#define UARTLITE_IRQ 3
#define TYPE_PETALOGIX_S3ADSP1800_MACHINE \
MACHINE_TYPE_NAME("petalogix-s3adsp1800")
struct S3Adsp1800MachineState {
MachineState parent_class;
EndianMode endianness;
};
OBJECT_DECLARE_TYPE(S3Adsp1800MachineState, MachineClass,
PETALOGIX_S3ADSP1800_MACHINE)
static void
petalogix_s3adsp1800_init(MachineState *machine)
{
S3Adsp1800MachineState *psms = PETALOGIX_S3ADSP1800_MACHINE(machine);
ram_addr_t ram_size = machine->ram_size;
DeviceState *dev;
MicroBlazeCPU *cpu;
DriveInfo *dinfo;
int i;
hwaddr ddr_base = MEMORY_BASEADDR;
MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
qemu_irq irq[32];
MemoryRegion *sysmem = get_system_memory();
EndianMode endianness = psms->endianness;
cpu = MICROBLAZE_CPU(object_new(TYPE_MICROBLAZE_CPU));
object_property_set_str(OBJECT(cpu), "version", "7.10.d", &error_abort);
object_property_set_bool(OBJECT(cpu), "little-endian",
endianness == ENDIAN_MODE_LITTLE, &error_abort);
qdev_realize(DEVICE(cpu), NULL, &error_abort);
/* Attach emulated BRAM through the LMB. */
memory_region_init_ram(phys_lmb_bram, NULL,
"petalogix_s3adsp1800.lmb_bram", LMB_BRAM_SIZE,
&error_fatal);
memory_region_add_subregion(sysmem, 0x00000000, phys_lmb_bram);
memory_region_init_ram(phys_ram, NULL, "petalogix_s3adsp1800.ram",
ram_size, &error_fatal);
memory_region_add_subregion(sysmem, ddr_base, phys_ram);
dinfo = drive_get(IF_PFLASH, 0, 0);
pflash_cfi01_register(FLASH_BASEADDR,
"petalogix_s3adsp1800.flash", FLASH_SIZE,
dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
64 * KiB, 1, 0x89, 0x18, 0x0000, 0x0, 1);
dev = qdev_new("xlnx.xps-intc");
qdev_prop_set_enum(dev, "endianness", endianness);
qdev_prop_set_uint32(dev, "kind-of-intr",
1 << ETHLITE_IRQ | 1 << UARTLITE_IRQ);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, INTC_BASEADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
qdev_get_gpio_in(DEVICE(cpu), MB_CPU_IRQ));
for (i = 0; i < 32; i++) {
irq[i] = qdev_get_gpio_in(dev, i);
}
dev = qdev_new(TYPE_XILINX_UARTLITE);
qdev_prop_set_enum(dev, "endianness", endianness);
qdev_prop_set_chr(dev, "chardev", serial_hd(0));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, UARTLITE_BASEADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[UARTLITE_IRQ]);
/* 2 timers at irq 2 @ 62 Mhz. */
dev = qdev_new("xlnx.xps-timer");
qdev_prop_set_enum(dev, "endianness", endianness);
qdev_prop_set_uint32(dev, "one-timer-only", 0);
qdev_prop_set_uint32(dev, "clock-frequency", 62 * 1000000);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, TIMER_BASEADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[TIMER_IRQ]);
dev = qdev_new("xlnx.xps-ethernetlite");
qdev_prop_set_enum(dev, "endianness", endianness);
qemu_configure_nic_device(dev, true, NULL);
qdev_prop_set_uint32(dev, "tx-ping-pong", 0);
qdev_prop_set_uint32(dev, "rx-ping-pong", 0);
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
sysbus_mmio_map(SYS_BUS_DEVICE(dev), 0, ETHLITE_BASEADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, irq[ETHLITE_IRQ]);
create_unimplemented_device("xps_gpio", GPIO_BASEADDR, 0x10000);
microblaze_load_kernel(cpu, endianness == ENDIAN_MODE_LITTLE, ddr_base,
ram_size, machine->initrd_filename,
BINARY_DEVICE_TREE_FILE,
NULL);
}
static int machine_get_endianness(Object *obj, Error **errp G_GNUC_UNUSED)
{
S3Adsp1800MachineState *ms = PETALOGIX_S3ADSP1800_MACHINE(obj);
return ms->endianness;
}
static void machine_set_endianness(Object *obj, int endianness, Error **errp)
{
S3Adsp1800MachineState *ms = PETALOGIX_S3ADSP1800_MACHINE(obj);
ms->endianness = endianness;
}
static void petalogix_s3adsp1800_machine_class_init(ObjectClass *oc,
const void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
ObjectProperty *prop;
mc->desc = "PetaLogix linux refdesign for xilinx Spartan 3ADSP1800";
mc->init = petalogix_s3adsp1800_init;
mc->is_default = true;
prop = object_class_property_add_enum(oc, "endianness", "EndianMode",
&EndianMode_lookup,
machine_get_endianness,
machine_set_endianness);
object_property_set_default_str(prop, TARGET_BIG_ENDIAN ? "big" : "little");
object_class_property_set_description(oc, "endianness",
"Defines whether the machine runs in big or little endian mode");
}
static const TypeInfo petalogix_s3adsp1800_machine_types[] = {
{
.name = TYPE_PETALOGIX_S3ADSP1800_MACHINE,
.parent = TYPE_MACHINE,
.class_init = petalogix_s3adsp1800_machine_class_init,
.instance_size = sizeof(S3Adsp1800MachineState),
},
};
DEFINE_TYPES(petalogix_s3adsp1800_machine_types)
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