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hw/arm: xlnx-zcu102: Add Xilinx eFUSE device

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Connect the support for ZynqMP eFUSE one-time field-programmable
bit array.

The command argument:
  -drive if=pflash,index=3,...
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 768 bytes or larger. A file with all
binary 0's is a 'blank'.

Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Message-id: 20210917052400.1249094-9-tong.ho@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Tong Ho 2021-09-16 22:23:59 -07:00 • committed by Peter Maydell
parent 7e47e15c8b
commit db1264df32
4 changed files with 48 additions and 0 deletions
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29
hw/arm/xlnx-zynqmp.c
View file

@ -69,6 +69,9 @@
#define BBRAM_ADDR 0xffcd0000
#define BBRAM_IRQ 11
#define EFUSE_ADDR 0xffcc0000
#define EFUSE_IRQ 87
#define SDHCI_CAPABILITIES 0x280737ec6481 /* Datasheet: UG1085 (v1.7) */
static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = {
@ -245,6 +248,31 @@ static void xlnx_zynqmp_create_bbram(XlnxZynqMPState *s, qemu_irq *gic)
sysbus_connect_irq(sbd, 0, gic[BBRAM_IRQ]);
}
static void xlnx_zynqmp_create_efuse(XlnxZynqMPState *s, qemu_irq *gic)
{
Object *bits = OBJECT(&s->efuse);
Object *ctrl = OBJECT(&s->efuse_ctrl);
SysBusDevice *sbd;
object_initialize_child(OBJECT(s), "efuse-ctrl", &s->efuse_ctrl,
TYPE_XLNX_ZYNQMP_EFUSE);
object_initialize_child_with_props(ctrl, "xlnx-efuse@0", bits,
sizeof(s->efuse),
TYPE_XLNX_EFUSE, &error_abort,
"efuse-nr", "3",
"efuse-size", "2048",
NULL);
qdev_realize(DEVICE(bits), NULL, &error_abort);
object_property_set_link(ctrl, "efuse", bits, &error_abort);
sbd = SYS_BUS_DEVICE(ctrl);
sysbus_realize(sbd, &error_abort);
sysbus_mmio_map(sbd, 0, EFUSE_ADDR);
sysbus_connect_irq(sbd, 0, gic[EFUSE_IRQ]);
}
static void xlnx_zynqmp_create_unimp_mmio(XlnxZynqMPState *s)
{
static const struct UnimpInfo {
@ -646,6 +674,7 @@ static void xlnx_zynqmp_realize(DeviceState *dev, Error **errp)
sysbus_connect_irq(SYS_BUS_DEVICE(&s->rtc), 0, gic_spi[RTC_IRQ]);
xlnx_zynqmp_create_bbram(s, gic_spi);
xlnx_zynqmp_create_efuse(s, gic_spi);
xlnx_zynqmp_create_unimp_mmio(s);
for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) {