diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index c425c01e06..adbfbbd6b4 100644
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -225,12 +225,12 @@ static void aspeed_board_init_flashes(AspeedSMCState *s, const char *flashtype,
         DriveInfo *dinfo = drive_get_next(IF_MTD);
         qemu_irq cs_line;
 
-        fl->flash = ssi_create_slave_no_init(s->spi, flashtype);
+        fl->flash = qdev_new(flashtype);
         if (dinfo) {
             qdev_prop_set_drive(fl->flash, "drive", blk_by_legacy_dinfo(dinfo),
                                 errp);
         }
-        qdev_init_nofail(fl->flash);
+        qdev_realize_and_unref(fl->flash, BUS(s->spi), &error_fatal);
 
         cs_line = qdev_get_gpio_in_named(fl->flash, SSI_GPIO_CS, 0);
         sysbus_connect_irq(SYS_BUS_DEVICE(s), i + 1, cs_line);
diff --git a/hw/arm/msf2-som.c b/hw/arm/msf2-som.c
index e398703742..ca9cbe1acb 100644
--- a/hw/arm/msf2-som.c
+++ b/hw/arm/msf2-som.c
@@ -47,7 +47,7 @@ static void emcraft_sf2_s2s010_init(MachineState *machine)
     MachineClass *mc = MACHINE_GET_CLASS(machine);
     DriveInfo *dinfo = drive_get_next(IF_MTD);
     qemu_irq cs_line;
-    SSIBus *spi_bus;
+    BusState *spi_bus;
     MemoryRegion *sysmem = get_system_memory();
     MemoryRegion *ddr = g_new(MemoryRegion, 1);
 
@@ -82,14 +82,14 @@ static void emcraft_sf2_s2s010_init(MachineState *machine)
     soc = MSF2_SOC(dev);
 
     /* Attach SPI flash to SPI0 controller */
-    spi_bus = (SSIBus *)qdev_get_child_bus(dev, "spi0");
-    spi_flash = ssi_create_slave_no_init(spi_bus, "s25sl12801");
+    spi_bus = qdev_get_child_bus(dev, "spi0");
+    spi_flash = qdev_new("s25sl12801");
     qdev_prop_set_uint8(spi_flash, "spansion-cr2nv", 1);
     if (dinfo) {
         qdev_prop_set_drive(spi_flash, "drive", blk_by_legacy_dinfo(dinfo),
                                     &error_fatal);
     }
-    qdev_init_nofail(spi_flash);
+    qdev_realize_and_unref(spi_flash, spi_bus, &error_fatal);
     cs_line = qdev_get_gpio_in_named(spi_flash, SSI_GPIO_CS, 0);
     sysbus_connect_irq(SYS_BUS_DEVICE(&soc->spi[0]), 1, cs_line);
 
diff --git a/hw/arm/sabrelite.c b/hw/arm/sabrelite.c
index 6f0e233d77..dfd6643822 100644
--- a/hw/arm/sabrelite.c
+++ b/hw/arm/sabrelite.c
@@ -80,13 +80,13 @@ static void sabrelite_init(MachineState *machine)
                 qemu_irq cs_line;
                 DriveInfo *dinfo = drive_get_next(IF_MTD);
 
-                flash_dev = ssi_create_slave_no_init(spi_bus, "sst25vf016b");
+                flash_dev = qdev_new("sst25vf016b");
                 if (dinfo) {
                     qdev_prop_set_drive(flash_dev, "drive",
                                         blk_by_legacy_dinfo(dinfo),
                                         &error_fatal);
                 }
-                qdev_init_nofail(flash_dev);
+                qdev_realize_and_unref(flash_dev, BUS(spi_bus), &error_fatal);
 
                 cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
                 sysbus_connect_irq(SYS_BUS_DEVICE(spi_dev), 1, cs_line);
diff --git a/hw/arm/xilinx_zynq.c b/hw/arm/xilinx_zynq.c
index 5fbd2b2e31..0e0f0976c4 100644
--- a/hw/arm/xilinx_zynq.c
+++ b/hw/arm/xilinx_zynq.c
@@ -157,12 +157,12 @@ static inline void zynq_init_spi_flashes(uint32_t base_addr, qemu_irq irq,
 
         for (j = 0; j < num_ss; ++j) {
             DriveInfo *dinfo = drive_get_next(IF_MTD);
-            flash_dev = ssi_create_slave_no_init(spi, "n25q128");
+            flash_dev = qdev_new("n25q128");
             if (dinfo) {
                 qdev_prop_set_drive(flash_dev, "drive",
                                     blk_by_legacy_dinfo(dinfo), &error_fatal);
             }
-            qdev_init_nofail(flash_dev);
+            qdev_realize_and_unref(flash_dev, BUS(spi), &error_fatal);
 
             cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
             sysbus_connect_irq(busdev, i * num_ss + j + 1, cs_line);
diff --git a/hw/arm/xlnx-zcu102.c b/hw/arm/xlnx-zcu102.c
index 4229b2d936..77c84b82ab 100644
--- a/hw/arm/xlnx-zcu102.c
+++ b/hw/arm/xlnx-zcu102.c
@@ -149,21 +149,21 @@ static void xlnx_zcu102_init(MachineState *machine)
     }
 
     for (i = 0; i < XLNX_ZYNQMP_NUM_SPIS; i++) {
-        SSIBus *spi_bus;
+        BusState *spi_bus;
         DeviceState *flash_dev;
         qemu_irq cs_line;
         DriveInfo *dinfo = drive_get_next(IF_MTD);
         gchar *bus_name = g_strdup_printf("spi%d", i);
 
-        spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(&s->soc), bus_name);
+        spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
         g_free(bus_name);
 
-        flash_dev = ssi_create_slave_no_init(spi_bus, "sst25wf080");
+        flash_dev = qdev_new("sst25wf080");
         if (dinfo) {
             qdev_prop_set_drive(flash_dev, "drive", blk_by_legacy_dinfo(dinfo),
                                 &error_fatal);
         }
-        qdev_init_nofail(flash_dev);
+        qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 
         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 
@@ -171,22 +171,22 @@ static void xlnx_zcu102_init(MachineState *machine)
     }
 
     for (i = 0; i < XLNX_ZYNQMP_NUM_QSPI_FLASH; i++) {
-        SSIBus *spi_bus;
+        BusState *spi_bus;
         DeviceState *flash_dev;
         qemu_irq cs_line;
         DriveInfo *dinfo = drive_get_next(IF_MTD);
         int bus = i / XLNX_ZYNQMP_NUM_QSPI_BUS_CS;
         gchar *bus_name = g_strdup_printf("qspi%d", bus);
 
-        spi_bus = (SSIBus *)qdev_get_child_bus(DEVICE(&s->soc), bus_name);
+        spi_bus = qdev_get_child_bus(DEVICE(&s->soc), bus_name);
         g_free(bus_name);
 
-        flash_dev = ssi_create_slave_no_init(spi_bus, "n25q512a11");
+        flash_dev = qdev_new("n25q512a11");
         if (dinfo) {
             qdev_prop_set_drive(flash_dev, "drive", blk_by_legacy_dinfo(dinfo),
                                 &error_fatal);
         }
-        qdev_init_nofail(flash_dev);
+        qdev_realize_and_unref(flash_dev, spi_bus, &error_fatal);
 
         cs_line = qdev_get_gpio_in_named(flash_dev, SSI_GPIO_CS, 0);
 
diff --git a/hw/microblaze/petalogix_ml605_mmu.c b/hw/microblaze/petalogix_ml605_mmu.c
index 2e7a3fa119..d4bfa233c9 100644
--- a/hw/microblaze/petalogix_ml605_mmu.c
+++ b/hw/microblaze/petalogix_ml605_mmu.c
@@ -186,12 +186,12 @@ petalogix_ml605_init(MachineState *machine)
             DriveInfo *dinfo = drive_get_next(IF_MTD);
             qemu_irq cs_line;
 
-            dev = ssi_create_slave_no_init(spi, "n25q128");
+            dev = qdev_new("n25q128");
             if (dinfo) {
                 qdev_prop_set_drive(dev, "drive", blk_by_legacy_dinfo(dinfo),
                                     &error_fatal);
             }
-            qdev_init_nofail(dev);
+            qdev_realize_and_unref(dev, BUS(spi), &error_fatal);
 
             cs_line = qdev_get_gpio_in_named(dev, SSI_GPIO_CS, 0);
             sysbus_connect_irq(busdev, i+1, cs_line);
