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>
This commit is contained in:
parent
5f4910ff12
commit
7e47e15c8b
|
@ -81,3 +81,4 @@ config XLNX_ZYNQMP
|
|||
select REGISTER
|
||||
select CAN_BUS
|
||||
select PTIMER
|
||||
select XLNX_BBRAM
|
||||
|
|
|
@ -98,6 +98,18 @@ static void zcu102_modify_dtb(const struct arm_boot_info *binfo, void *fdt)
|
|||
}
|
||||
}
|
||||
|
||||
static void bbram_attach_drive(XlnxBBRam *dev)
|
||||
{
|
||||
DriveInfo *dinfo;
|
||||
BlockBackend *blk;
|
||||
|
||||
dinfo = drive_get_by_index(IF_PFLASH, 2);
|
||||
blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
|
||||
if (blk) {
|
||||
qdev_prop_set_drive(DEVICE(dev), "drive", blk);
|
||||
}
|
||||
}
|
||||
|
||||
static void xlnx_zcu102_init(MachineState *machine)
|
||||
{
|
||||
XlnxZCU102 *s = ZCU102_MACHINE(machine);
|
||||
|
@ -136,6 +148,9 @@ static void xlnx_zcu102_init(MachineState *machine)
|
|||
|
||||
qdev_realize(DEVICE(&s->soc), NULL, &error_fatal);
|
||||
|
||||
/* Attach bbram backend, if given */
|
||||
bbram_attach_drive(&s->soc.bbram);
|
||||
|
||||
/* Create and plug in the SD cards */
|
||||
for (i = 0; i < XLNX_ZYNQMP_NUM_SDHCI; i++) {
|
||||
BusState *bus;
|
||||
|
|
|
@ -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++) {
|
||||
|
|
|
@ -36,6 +36,7 @@
|
|||
#include "qom/object.h"
|
||||
#include "net/can_emu.h"
|
||||
#include "hw/dma/xlnx_csu_dma.h"
|
||||
#include "hw/nvram/xlnx-bbram.h"
|
||||
|
||||
#define TYPE_XLNX_ZYNQMP "xlnx-zynqmp"
|
||||
OBJECT_DECLARE_SIMPLE_TYPE(XlnxZynqMPState, XLNX_ZYNQMP)
|
||||
|
@ -100,6 +101,7 @@ struct XlnxZynqMPState {
|
|||
|
||||
MemoryRegion *ddr_ram;
|
||||
MemoryRegion ddr_ram_low, ddr_ram_high;
|
||||
XlnxBBRam bbram;
|
||||
|
||||
MemoryRegion mr_unimp[XLNX_ZYNQMP_NUM_UNIMP_AREAS];
|
||||
|
||||
|
|
Loading…
Reference in New Issue