diff options
| author | Tong Ho <tong.ho@xilinx.com> | 2021-09-16 22:23:58 -0700 |
|---|---|---|
| committer | Peter Maydell <peter.maydell@linaro.org> | 2021-09-30 13:42:10 +0100 |
| commit | 7e47e15c8b47ac866e8f07998276b01e612a360a (patch) | |
| tree | 0be74cbcd80bca16fa9b26c9275ec4172ae40c0f /hw/arm/xlnx-zynqmp.c | |
| parent | 5f4910ff12f88f9750608cbfe07895204405bed1 (diff) | |
hw/arm: xlnx-zcu102: Add Xilinx BBRAM device
Connect the support for Xilinx ZynqMP Battery-Backed RAM (BBRAM)
The command argument:
-drive if=pflash,index=2,...
Can be used to optionally connect the bbram 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 36 bytes or larger. A file with all
binary 0's is a 'blank'.
Signed-off-by: Tong Ho <tong.ho@xilinx.com>
Message-id: 20210917052400.1249094-8-tong.ho@xilinx.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/arm/xlnx-zynqmp.c')
| -rw-r--r-- | hw/arm/xlnx-zynqmp.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/hw/arm/xlnx-zynqmp.c b/hw/arm/xlnx-zynqmp.c index 4e5a471e30..1e8e2ddcc2 100644 --- a/hw/arm/xlnx-zynqmp.c +++ b/hw/arm/xlnx-zynqmp.c @@ -66,6 +66,9 @@ #define RTC_ADDR 0xffa60000 #define RTC_IRQ 26 +#define BBRAM_ADDR 0xffcd0000 +#define BBRAM_IRQ 11 + #define SDHCI_CAPABILITIES 0x280737ec6481 /* Datasheet: UG1085 (v1.7) */ static const uint64_t gem_addr[XLNX_ZYNQMP_NUM_GEMS] = { @@ -226,6 +229,22 @@ static void xlnx_zynqmp_create_rpu(MachineState *ms, XlnxZynqMPState *s, qdev_realize(DEVICE(&s->rpu_cluster), NULL, &error_fatal); } +static void xlnx_zynqmp_create_bbram(XlnxZynqMPState *s, qemu_irq *gic) +{ + SysBusDevice *sbd; + + object_initialize_child_with_props(OBJECT(s), "bbram", &s->bbram, + sizeof(s->bbram), TYPE_XLNX_BBRAM, + &error_fatal, + "crc-zpads", "1", + NULL); + sbd = SYS_BUS_DEVICE(&s->bbram); + + sysbus_realize(sbd, &error_fatal); + sysbus_mmio_map(sbd, 0, BBRAM_ADDR); + sysbus_connect_irq(sbd, 0, gic[BBRAM_IRQ]); +} + static void xlnx_zynqmp_create_unimp_mmio(XlnxZynqMPState *s) { static const struct UnimpInfo { @@ -626,6 +645,7 @@ 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_bbram(s, gic_spi); xlnx_zynqmp_create_unimp_mmio(s); for (i = 0; i < XLNX_ZYNQMP_NUM_GDMA_CH; i++) { |