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hw/arm/xlnx-zynqmp: Add unimplemented APU mmio 

Add unimplemented APU mmio region to xlnx-zynqmp for booting
bare-metal guests built with standalone bsp, which access the
region from one of the following places:
  https://github.com/Xilinx/embeddedsw/blob/release-2020.2/lib/bsp/standalone/src/arm/ARMv8/64bit/armclang/boot.S#L139
  https://github.com/Xilinx/embeddedsw/blob/release-2020.2/lib/bsp/standalone/src/arm/ARMv8/64bit/gcc/boot.S#L183

Acked-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Message-id: 20210823173818.201259-3-tong.ho@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Tong Ho 2021-08-23 10:38:18 -07:00 committed by Peter Maydell
parent 9a0fcb7f5f
commit d2e6f37013
2 changed files with 39 additions and 0 deletions
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32
hw/arm/xlnx-zynqmp.c
View File

@ -20,6 +20,7 @@
#include "qemu/module.h"
#include "hw/arm/xlnx-zynqmp.h"
#include "hw/intc/arm_gic_common.h"
#include "hw/misc/unimp.h"
#include "hw/boards.h"
#include "sysemu/kvm.h"
#include "sysemu/sysemu.h"
@ -56,6 +57,9 @@
#define DPDMA_ADDR 0xfd4c0000
#define DPDMA_IRQ 116
#define APU_ADDR 0xfd5c0000
#define APU_SIZE 0x100
#define IPI_ADDR 0xFF300000
#define IPI_IRQ 64
@ -222,6 +226,32 @@ static void xlnx_zynqmp_create_rpu(MachineState *ms, XlnxZynqMPState *s,
qdev_realize(DEVICE(&s->rpu_cluster), NULL, &error_fatal);
}
static void xlnx_zynqmp_create_unimp_mmio(XlnxZynqMPState *s)
{
static const struct UnimpInfo {
const char *name;
hwaddr base;
hwaddr size;
} unimp_areas[ARRAY_SIZE(s->mr_unimp)] = {
{ .name = "apu", APU_ADDR, APU_SIZE },
};
unsigned int nr;
for (nr = 0; nr < ARRAY_SIZE(unimp_areas); nr++) {
const struct UnimpInfo *info = &unimp_areas[nr];
DeviceState *dev = qdev_new(TYPE_UNIMPLEMENTED_DEVICE);
SysBusDevice *sbd = SYS_BUS_DEVICE(dev);
assert(info->name && info->base && info->size > 0);
qdev_prop_set_string(dev, "name", info->name);
qdev_prop_set_uint64(dev, "size", info->size);
object_property_add_child(OBJECT(s), info->name, OBJECT(dev));
sysbus_realize_and_unref(sbd, &error_fatal);
sysbus_mmio_map(sbd, 0, info->base);
}
}
static void xlnx_zynqmp_init(Object *obj)
{
MachineState *ms = MACHINE(qdev_get_machine());
@ -596,6 +626,8 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
sysbus_mmio_map(SYS_BUS_DEVICE(&s->rtc), 0, RTC_ADDR);
sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0, gic_spi[RTC_IRQ]);
xlnx_zynqmp_create_unimp_mmio(s);
for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) {
if (!object_property_set_uint(OBJECT(&s->gdma[i]), "bus-width", 128,
errp)) {

7
include/hw/arm/xlnx-zynqmp.h
View File

@ -79,6 +79,11 @@ OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPState, XLNX_ZYNQMP)
#define XLNX_ZYNQMP_MAX_RAM_SIZE (XLNX_ZYNQMP_MAX_LOW_RAM_SIZE + \
XLNX_ZYNQMP_MAX_HIGH_RAM_SIZE)
/*
* Unimplemented mmio regions needed to boot some images.
*/
#define XLNX_ZYNQMP_NUM_UNIMP_AREAS 1
struct XlnxZynqMPState {
/*< private >*/
DeviceState parent_obj;
@ -96,6 +101,8 @@ struct XlnxZynqMPState {
MemoryRegion *ddr_ram;
MemoryRegion ddr_ram_low, ddr_ram_high;
MemoryRegion mr_unimp[XLNX_ZYNQMP_NUM_UNIMP_AREAS];
CadenceGEMState gem[XLNX_ZYNQMP_NUM_GEMS];
CadenceUARTState uart[XLNX_ZYNQMP_NUM_UARTS];
XlnxZynqMPCANState can[XLNX_ZYNQMP_NUM_CAN];