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qemu-e2k/hw/arm/xlnx-versal.c
Tong Ho 5f4910ff12 hw/arm: xlnx-versal-virt: Add Xilinx eFUSE device 
Connect the support for Versal eFUSE one-time field-programmable
bit array.

The command argument:
  -drive if=pflash,index=1,...
Can be used to optionally connect the bit array to a
backend storage, such that field-programmed values
in one invocation can be made available to next
invocation.

The backend storage must be a seekable binary file, and
its size must be 3072 bytes or larger. A file with all
binary 0's is a 'blank'.

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Message-id: 20210917052400.1249094-7-tong.ho@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-09-30 13:42:10 +01:00

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/*
* Xilinx Versal SoC model.
*
* Copyright (c) 2018 Xilinx Inc.
* Written by Edgar E. Iglesias
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 or
* (at your option) any later version.
*/
#include "qemu/osdep.h"
#include "qemu/units.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "hw/sysbus.h"
#include "net/net.h"
#include "sysemu/sysemu.h"
#include "sysemu/kvm.h"
#include "hw/arm/boot.h"
#include "kvm_arm.h"
#include "hw/misc/unimp.h"
#include "hw/arm/xlnx-versal.h"
#define XLNX_VERSAL_ACPU_TYPE ARM_CPU_TYPE_NAME("cortex-a72")
#define GEM_REVISION 0x40070106
static void versal_create_apu_cpus(Versal *s)
{
int i;
for (i = 0; i < ARRAY_SIZE(s->fpd.apu.cpu); i++) {
Object *obj;
object_initialize_child(OBJECT(s), "apu-cpu[*]", &s->fpd.apu.cpu[i],
XLNX_VERSAL_ACPU_TYPE);
obj = OBJECT(&s->fpd.apu.cpu[i]);
object_property_set_int(obj, "psci-conduit", s->cfg.psci_conduit,
&error_abort);
if (i) {
/* Secondary CPUs start in PSCI powered-down state */
object_property_set_bool(obj, "start-powered-off", true,
&error_abort);
}
object_property_set_int(obj, "core-count", ARRAY_SIZE(s->fpd.apu.cpu),
&error_abort);
object_property_set_link(obj, "memory", OBJECT(&s->fpd.apu.mr),
&error_abort);
qdev_realize(DEVICE(obj), NULL, &error_fatal);
}
}
static void versal_create_apu_gic(Versal *s, qemu_irq *pic)
{
static const uint64_t addrs[] = {
MM_GIC_APU_DIST_MAIN,
MM_GIC_APU_REDIST_0
};
SysBusDevice *gicbusdev;
DeviceState *gicdev;
int nr_apu_cpus = ARRAY_SIZE(s->fpd.apu.cpu);
int i;
object_initialize_child(OBJECT(s), "apu-gic", &s->fpd.apu.gic,
gicv3_class_name());
gicbusdev = SYS_BUS_DEVICE(&s->fpd.apu.gic);
gicdev = DEVICE(&s->fpd.apu.gic);
qdev_prop_set_uint32(gicdev, "revision", 3);
qdev_prop_set_uint32(gicdev, "num-cpu", nr_apu_cpus);
qdev_prop_set_uint32(gicdev, "num-irq", XLNX_VERSAL_NR_IRQS + 32);
qdev_prop_set_uint32(gicdev, "len-redist-region-count", 1);
qdev_prop_set_uint32(gicdev, "redist-region-count[0]", nr_apu_cpus);
qdev_prop_set_bit(gicdev, "has-security-extensions", true);
sysbus_realize(SYS_BUS_DEVICE(&s->fpd.apu.gic), &error_fatal);
for (i = 0; i < ARRAY_SIZE(addrs); i++) {
MemoryRegion *mr;
mr = sysbus_mmio_get_region(gicbusdev, i);
memory_region_add_subregion(&s->fpd.apu.mr, addrs[i], mr);
}
for (i = 0; i < nr_apu_cpus; i++) {
DeviceState *cpudev = DEVICE(&s->fpd.apu.cpu[i]);
int ppibase = XLNX_VERSAL_NR_IRQS + i * GIC_INTERNAL + GIC_NR_SGIS;
qemu_irq maint_irq;
int ti;
/* Mapping from the output timer irq lines from the CPU to the
* GIC PPI inputs.
*/
const int timer_irq[] = {
[GTIMER_PHYS] = VERSAL_TIMER_NS_EL1_IRQ,
[GTIMER_VIRT] = VERSAL_TIMER_VIRT_IRQ,
[GTIMER_HYP] = VERSAL_TIMER_NS_EL2_IRQ,
[GTIMER_SEC] = VERSAL_TIMER_S_EL1_IRQ,
};
for (ti = 0; ti < ARRAY_SIZE(timer_irq); ti++) {
qdev_connect_gpio_out(cpudev, ti,
qdev_get_gpio_in(gicdev,
ppibase + timer_irq[ti]));
}
maint_irq = qdev_get_gpio_in(gicdev,
ppibase + VERSAL_GIC_MAINT_IRQ);
qdev_connect_gpio_out_named(cpudev, "gicv3-maintenance-interrupt",
0, maint_irq);
sysbus_connect_irq(gicbusdev, i, qdev_get_gpio_in(cpudev, ARM_CPU_IRQ));
sysbus_connect_irq(gicbusdev, i + nr_apu_cpus,
qdev_get_gpio_in(cpudev, ARM_CPU_FIQ));
sysbus_connect_irq(gicbusdev, i + 2 * nr_apu_cpus,
qdev_get_gpio_in(cpudev, ARM_CPU_VIRQ));
sysbus_connect_irq(gicbusdev, i + 3 * nr_apu_cpus,
qdev_get_gpio_in(cpudev, ARM_CPU_VFIQ));
}
for (i = 0; i < XLNX_VERSAL_NR_IRQS; i++) {
pic[i] = qdev_get_gpio_in(gicdev, i);
}
}
static void versal_create_uarts(Versal *s, qemu_irq *pic)
{
int i;
for (i = 0; i < ARRAY_SIZE(s->lpd.iou.uart); i++) {
static const int irqs[] = { VERSAL_UART0_IRQ_0, VERSAL_UART1_IRQ_0};
static const uint64_t addrs[] = { MM_UART0, MM_UART1 };
char *name = g_strdup_printf("uart%d", i);
DeviceState *dev;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), name, &s->lpd.iou.uart[i],
TYPE_PL011);
dev = DEVICE(&s->lpd.iou.uart[i]);
qdev_prop_set_chr(dev, "chardev", serial_hd(i));
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irqs[i]]);
g_free(name);
}
}
static void versal_create_usbs(Versal *s, qemu_irq *pic)
{
DeviceState *dev;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), "usb2", &s->lpd.iou.usb,
TYPE_XILINX_VERSAL_USB2);
dev = DEVICE(&s->lpd.iou.usb);
object_property_set_link(OBJECT(dev), "dma", OBJECT(&s->mr_ps),
&error_abort);
qdev_prop_set_uint32(dev, "intrs", 1);
qdev_prop_set_uint32(dev, "slots", 2);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps, MM_USB_0, mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[VERSAL_USB0_IRQ_0]);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 1);
memory_region_add_subregion(&s->mr_ps, MM_USB2_CTRL_REGS, mr);
}
static void versal_create_gems(Versal *s, qemu_irq *pic)
{
int i;
for (i = 0; i < ARRAY_SIZE(s->lpd.iou.gem); i++) {
static const int irqs[] = { VERSAL_GEM0_IRQ_0, VERSAL_GEM1_IRQ_0};
static const uint64_t addrs[] = { MM_GEM0, MM_GEM1 };
char *name = g_strdup_printf("gem%d", i);
NICInfo *nd = &nd_table[i];
DeviceState *dev;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), name, &s->lpd.iou.gem[i],
TYPE_CADENCE_GEM);
dev = DEVICE(&s->lpd.iou.gem[i]);
/* FIXME use qdev NIC properties instead of nd_table[] */
if (nd->used) {
qemu_check_nic_model(nd, "cadence_gem");
qdev_set_nic_properties(dev, nd);
}
object_property_set_int(OBJECT(dev), "phy-addr", 23, &error_abort);
object_property_set_int(OBJECT(dev), "num-priority-queues", 2,
&error_abort);
object_property_set_link(OBJECT(dev), "dma", OBJECT(&s->mr_ps),
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps, addrs[i], mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[irqs[i]]);
g_free(name);
}
}
static void versal_create_admas(Versal *s, qemu_irq *pic)
{
int i;
for (i = 0; i < ARRAY_SIZE(s->lpd.iou.adma); i++) {
char *name = g_strdup_printf("adma%d", i);
DeviceState *dev;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), name, &s->lpd.iou.adma[i],
TYPE_XLNX_ZDMA);
dev = DEVICE(&s->lpd.iou.adma[i]);
object_property_set_int(OBJECT(dev), "bus-width", 128, &error_abort);
object_property_set_link(OBJECT(dev), "dma",
OBJECT(get_system_memory()), &error_fatal);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps,
MM_ADMA_CH0 + i * MM_ADMA_CH0_SIZE, mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0, pic[VERSAL_ADMA_IRQ_0 + i]);
g_free(name);
}
}
#define SDHCI_CAPABILITIES 0x280737ec6481 /* Same as on ZynqMP. */
static void versal_create_sds(Versal *s, qemu_irq *pic)
{
int i;
for (i = 0; i < ARRAY_SIZE(s->pmc.iou.sd); i++) {
DeviceState *dev;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), "sd[*]", &s->pmc.iou.sd[i],
TYPE_SYSBUS_SDHCI);
dev = DEVICE(&s->pmc.iou.sd[i]);
object_property_set_uint(OBJECT(dev), "sd-spec-version", 3,
&error_fatal);
object_property_set_uint(OBJECT(dev), "capareg", SDHCI_CAPABILITIES,
&error_fatal);
object_property_set_uint(OBJECT(dev), "uhs", UHS_I, &error_fatal);
sysbus_realize(SYS_BUS_DEVICE(dev), &error_fatal);
mr = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(&s->mr_ps,
MM_PMC_SD0 + i * MM_PMC_SD0_SIZE, mr);
sysbus_connect_irq(SYS_BUS_DEVICE(dev), 0,
pic[VERSAL_SD0_IRQ_0 + i * 2]);
}
}
static void versal_create_rtc(Versal *s, qemu_irq *pic)
{
SysBusDevice *sbd;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), "rtc", &s->pmc.rtc,
TYPE_XLNX_ZYNQMP_RTC);
sbd = SYS_BUS_DEVICE(&s->pmc.rtc);
sysbus_realize(SYS_BUS_DEVICE(sbd), &error_fatal);
mr = sysbus_mmio_get_region(sbd, 0);
memory_region_add_subregion(&s->mr_ps, MM_PMC_RTC, mr);
/*
* TODO: Connect the ALARM and SECONDS interrupts once our RTC model
* supports them.
*/
sysbus_connect_irq(sbd, 1, pic[VERSAL_RTC_APB_ERR_IRQ]);
}
static void versal_create_xrams(Versal *s, qemu_irq *pic)
{
int nr_xrams = ARRAY_SIZE(s->lpd.xram.ctrl);
DeviceState *orgate;
int i;
/* XRAM IRQs get ORed into a single line. */
object_initialize_child(OBJECT(s), "xram-irq-orgate",
&s->lpd.xram.irq_orgate, TYPE_OR_IRQ);
orgate = DEVICE(&s->lpd.xram.irq_orgate);
object_property_set_int(OBJECT(orgate),
"num-lines", nr_xrams, &error_fatal);
qdev_realize(orgate, NULL, &error_fatal);
qdev_connect_gpio_out(orgate, 0, pic[VERSAL_XRAM_IRQ_0]);
for (i = 0; i < ARRAY_SIZE(s->lpd.xram.ctrl); i++) {
SysBusDevice *sbd;
MemoryRegion *mr;
object_initialize_child(OBJECT(s), "xram[*]", &s->lpd.xram.ctrl[i],
TYPE_XLNX_XRAM_CTRL);
sbd = SYS_BUS_DEVICE(&s->lpd.xram.ctrl[i]);
sysbus_realize(sbd, &error_fatal);
mr = sysbus_mmio_get_region(sbd, 0);
memory_region_add_subregion(&s->mr_ps,
MM_XRAMC + i * MM_XRAMC_SIZE, mr);
mr = sysbus_mmio_get_region(sbd, 1);
memory_region_add_subregion(&s->mr_ps, MM_XRAM + i * MiB, mr);
sysbus_connect_irq(sbd, 0, qdev_get_gpio_in(orgate, i));
}
}
static void versal_create_bbram(Versal *s, qemu_irq *pic)
{
SysBusDevice *sbd;
object_initialize_child_with_props(OBJECT(s), "bbram", &s->pmc.bbram,
sizeof(s->pmc.bbram), TYPE_XLNX_BBRAM,
&error_fatal,
"crc-zpads", "0",
NULL);
sbd = SYS_BUS_DEVICE(&s->pmc.bbram);
sysbus_realize(sbd, &error_fatal);
memory_region_add_subregion(&s->mr_ps, MM_PMC_BBRAM_CTRL,
sysbus_mmio_get_region(sbd, 0));
sysbus_connect_irq(sbd, 0, pic[VERSAL_BBRAM_APB_IRQ_0]);
}
static void versal_realize_efuse_part(Versal *s, Object *dev, hwaddr base)
{
SysBusDevice *part = SYS_BUS_DEVICE(dev);
object_property_set_link(OBJECT(part), "efuse",
OBJECT(&s->pmc.efuse), &error_abort);
sysbus_realize(part, &error_abort);
memory_region_add_subregion(&s->mr_ps, base,
sysbus_mmio_get_region(part, 0));
}
static void versal_create_efuse(Versal *s, qemu_irq *pic)
{
Object *bits = OBJECT(&s->pmc.efuse);
Object *ctrl = OBJECT(&s->pmc.efuse_ctrl);
Object *cache = OBJECT(&s->pmc.efuse_cache);
object_initialize_child(OBJECT(s), "efuse-ctrl", &s->pmc.efuse_ctrl,
TYPE_XLNX_VERSAL_EFUSE_CTRL);
object_initialize_child(OBJECT(s), "efuse-cache", &s->pmc.efuse_cache,
TYPE_XLNX_VERSAL_EFUSE_CACHE);
object_initialize_child_with_props(ctrl, "xlnx-efuse@0", bits,
sizeof(s->pmc.efuse),
TYPE_XLNX_EFUSE, &error_abort,
"efuse-nr", "3",
"efuse-size", "8192",
NULL);
qdev_realize(DEVICE(bits), NULL, &error_abort);
versal_realize_efuse_part(s, ctrl, MM_PMC_EFUSE_CTRL);
versal_realize_efuse_part(s, cache, MM_PMC_EFUSE_CACHE);
sysbus_connect_irq(SYS_BUS_DEVICE(ctrl), 0, pic[VERSAL_EFUSE_IRQ]);
}
/* This takes the board allocated linear DDR memory and creates aliases
* for each split DDR range/aperture on the Versal address map.
*/
static void versal_map_ddr(Versal *s)
{
uint64_t size = memory_region_size(s->cfg.mr_ddr);
/* Describes the various split DDR access regions. */
static const struct {
uint64_t base;
uint64_t size;
} addr_ranges[] = {
{ MM_TOP_DDR, MM_TOP_DDR_SIZE },
{ MM_TOP_DDR_2, MM_TOP_DDR_2_SIZE },
{ MM_TOP_DDR_3, MM_TOP_DDR_3_SIZE },
{ MM_TOP_DDR_4, MM_TOP_DDR_4_SIZE }
};
uint64_t offset = 0;
int i;
assert(ARRAY_SIZE(addr_ranges) == ARRAY_SIZE(s->noc.mr_ddr_ranges));
for (i = 0; i < ARRAY_SIZE(addr_ranges) && size; i++) {
char *name;
uint64_t mapsize;
mapsize = size < addr_ranges[i].size ? size : addr_ranges[i].size;
name = g_strdup_printf("noc-ddr-range%d", i);
/* Create the MR alias. */
memory_region_init_alias(&s->noc.mr_ddr_ranges[i], OBJECT(s),
name, s->cfg.mr_ddr,
offset, mapsize);
/* Map it onto the NoC MR. */
memory_region_add_subregion(&s->mr_ps, addr_ranges[i].base,
&s->noc.mr_ddr_ranges[i]);
offset += mapsize;
size -= mapsize;
g_free(name);
}
}
static void versal_unimp_area(Versal *s, const char *name,
MemoryRegion *mr,
hwaddr base, hwaddr size)
{
DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
MemoryRegion *mr_dev;
qdev_prop_set_string(dev, "name", name);
qdev_prop_set_uint64(dev, "size", size);
object_property_add_child(OBJECT(s), name, OBJECT(dev));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
mr_dev = sysbus_mmio_get_region(SYS_BUS_DEVICE(dev), 0);
memory_region_add_subregion(mr, base, mr_dev);
}
static void versal_unimp(Versal *s)
{
versal_unimp_area(s, "psm", &s->mr_ps,
MM_PSM_START, MM_PSM_END - MM_PSM_START);
versal_unimp_area(s, "crl", &s->mr_ps,
MM_CRL, MM_CRL_SIZE);
versal_unimp_area(s, "crf", &s->mr_ps,
MM_FPD_CRF, MM_FPD_CRF_SIZE);
versal_unimp_area(s, "apu", &s->mr_ps,
MM_FPD_FPD_APU, MM_FPD_FPD_APU_SIZE);
versal_unimp_area(s, "crp", &s->mr_ps,
MM_PMC_CRP, MM_PMC_CRP_SIZE);
versal_unimp_area(s, "iou-scntr", &s->mr_ps,
MM_IOU_SCNTR, MM_IOU_SCNTR_SIZE);
versal_unimp_area(s, "iou-scntr-seucre", &s->mr_ps,
MM_IOU_SCNTRS, MM_IOU_SCNTRS_SIZE);
}
static void versal_realize(DeviceState *dev, Error **errp)
{
Versal *s = XLNX_VERSAL(dev);
qemu_irq pic[XLNX_VERSAL_NR_IRQS];
versal_create_apu_cpus(s);
versal_create_apu_gic(s, pic);
versal_create_uarts(s, pic);
versal_create_usbs(s, pic);
versal_create_gems(s, pic);
versal_create_admas(s, pic);
versal_create_sds(s, pic);
versal_create_rtc(s, pic);
versal_create_xrams(s, pic);
versal_create_bbram(s, pic);
versal_create_efuse(s, pic);
versal_map_ddr(s);
versal_unimp(s);
/* Create the On Chip Memory (OCM). */
memory_region_init_ram(&s->lpd.mr_ocm, OBJECT(s), "ocm",
MM_OCM_SIZE, &error_fatal);
memory_region_add_subregion_overlap(&s->mr_ps, MM_OCM, &s->lpd.mr_ocm, 0);
memory_region_add_subregion_overlap(&s->fpd.apu.mr, 0, &s->mr_ps, 0);
}
static void versal_init(Object *obj)
{
Versal *s = XLNX_VERSAL(obj);
memory_region_init(&s->fpd.apu.mr, obj, "mr-apu", UINT64_MAX);
memory_region_init(&s->mr_ps, obj, "mr-ps-switch", UINT64_MAX);
}
static Property versal_properties[] = {
DEFINE_PROP_LINK("ddr", Versal, cfg.mr_ddr, TYPE_MEMORY_REGION,
MemoryRegion *),
DEFINE_PROP_UINT32("psci-conduit", Versal, cfg.psci_conduit, 0),
DEFINE_PROP_END_OF_LIST()
};
static void versal_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
dc->realize = versal_realize;
device_class_set_props(dc, versal_properties);
/* No VMSD since we haven't got any top-level SoC state to save. */
}
static const TypeInfo versal_info = {
.name = TYPE_XLNX_VERSAL,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(Versal),
.instance_init = versal_init,
.class_init = versal_class_init,
};
static void versal_register_types(void)
{
type_register_static(&versal_info);
}
type_init(versal_register_types);
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