@@ -24,6 +24,7 @@
#include "qom/object.h"
#include "hw/usb/xlnx-usb-subsystem.h"
#include "hw/misc/xlnx-versal-xramc.h"
+#include "hw/nvram/xlnx-bbram.h"
#define TYPE_XLNX_VERSAL "xlnx-versal"
OBJECT_DECLARE_SIMPLE_TYPE(Versal, XLNX_VERSAL)
@@ -79,6 +80,7 @@ struct Versal {
} iou;
XlnxZynqMPRTC rtc;
+ XlnxBBRam bbram;
} pmc;
struct {
@@ -105,6 +107,7 @@ struct Versal {
#define VERSAL_GEM1_WAKE_IRQ_0 59
#define VERSAL_ADMA_IRQ_0 60
#define VERSAL_XRAM_IRQ_0 79
+#define VERSAL_BBRAM_APB_IRQ_0 121
#define VERSAL_RTC_APB_ERR_IRQ 121
#define VERSAL_SD0_IRQ_0 126
#define VERSAL_RTC_ALARM_IRQ 142
@@ -172,6 +175,8 @@ struct Versal {
#define MM_PMC_SD0 0xf1040000U
#define MM_PMC_SD0_SIZE 0x10000
+#define MM_PMC_BBRAM_CTRL 0xf11f0000
+#define MM_PMC_BBRAM_CTRL_SIZE 0x00050
#define MM_PMC_CRP 0xf1260000U
#define MM_PMC_CRP_SIZE 0x10000
#define MM_PMC_RTC 0xf12a0000
@@ -356,6 +356,26 @@ static void fdt_add_rtc_node(VersalVirt *s)
g_free(name);
}
+static void fdt_add_bbram_node(VersalVirt *s)
+{
+ const char compat[] = TYPE_XLNX_BBRAM;
+ const char interrupt_names[] = "bbram-error";
+ char *name = g_strdup_printf("/bbram@%x", MM_PMC_BBRAM_CTRL);
+
+ qemu_fdt_add_subnode(s->fdt, name);
+
+ qemu_fdt_setprop_cells(s->fdt, name, "interrupts",
+ GIC_FDT_IRQ_TYPE_SPI, VERSAL_BBRAM_APB_IRQ_0,
+ GIC_FDT_IRQ_FLAGS_LEVEL_HI);
+ qemu_fdt_setprop(s->fdt, name, "interrupt-names",
+ interrupt_names, sizeof(interrupt_names));
+ qemu_fdt_setprop_sized_cells(s->fdt, name, "reg",
+ 2, MM_PMC_BBRAM_CTRL,
+ 2, MM_PMC_BBRAM_CTRL_SIZE);
+ qemu_fdt_setprop(s->fdt, name, "compatible", compat, sizeof(compat));
+ g_free(name);
+}
+
static void fdt_nop_memory_nodes(void *fdt, Error **errp)
{
Error *err = NULL;
@@ -510,6 +530,18 @@ static void create_virtio_regions(VersalVirt *s)
}
}
+static void bbram_attach_drive(XlnxBBRam *dev)
+{
+ DriveInfo *dinfo;
+ BlockBackend *blk;
+
+ dinfo = drive_get_by_index(IF_PFLASH, 0);
+ blk = dinfo ? blk_by_legacy_dinfo(dinfo) : NULL;
+ if (blk) {
+ qdev_prop_set_drive(DEVICE(dev), "drive", blk);
+ }
+}
+
static void sd_plugin_card(SDHCIState *sd, DriveInfo *di)
{
BlockBackend *blk = di ? blk_by_legacy_dinfo(di) : NULL;
@@ -570,6 +602,7 @@ static void versal_virt_init(MachineState *machine)
fdt_add_usb_xhci_nodes(s);
fdt_add_sd_nodes(s);
fdt_add_rtc_node(s);
+ fdt_add_bbram_node(s);
fdt_add_cpu_nodes(s, psci_conduit);
fdt_add_clk_node(s, "/clk125", 125000000, s->phandle.clk_125Mhz);
fdt_add_clk_node(s, "/clk25", 25000000, s->phandle.clk_25Mhz);
@@ -579,6 +612,9 @@ static void versal_virt_init(MachineState *machine)
memory_region_add_subregion_overlap(get_system_memory(),
0, &s->soc.fpd.apu.mr, 0);
+ /* Attach bbram backend, if given */
+ bbram_attach_drive(&s->soc.pmc.bbram);
+
/* Plugin SD cards. */
for (i = 0; i < ARRAY_SIZE(s->soc.pmc.iou.sd); i++) {
sd_plugin_card(&s->soc.pmc.iou.sd[i], drive_get_next(IF_SD));
@@ -314,6 +314,23 @@ static void versal_create_xrams(Versal *s, qemu_irq *pic)
}
}
+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]);
+}
+
/* This takes the board allocated linear DDR memory and creates aliases
* for each split DDR range/aperture on the Versal address map.
*/
@@ -402,6 +419,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
versal_create_sds(s, pic);
versal_create_rtc(s, pic);
versal_create_xrams(s, pic);
+ versal_create_bbram(s, pic);
versal_map_ddr(s);
versal_unimp(s);
@@ -381,6 +381,7 @@ config XLNX_VERSAL
select XLNX_ZDMA
select XLNX_ZYNQMP
select OR_IRQ
+ select XLNX_BBRAM
config NPCM7XX
bool