[PATCH 12/19] ppc/ppc405: QOM'ify EBC

[Cédric Le Goater]

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/ppc/ppc405.h    | 16 +++++++++++
 hw/ppc/ppc405_uc.c | 71 +++++++++++++++++++++++++++++++---------------
 2 files changed, 64 insertions(+), 23 deletions(-)

diff --git a/hw/ppc/ppc405.h b/hw/ppc/ppc405.h
index bd662b2444ff..f1acb37185f5 100644
--- a/hw/ppc/ppc405.h
+++ b/hw/ppc/ppc405.h
@@ -65,7 +65,22 @@ struct ppc4xx_bd_info_t {
 
 typedef struct Ppc405SoCState Ppc405SoCState;
 
+/* Peripheral controller */
+#define TYPE_PPC405_EBC "ppc405-ebc"
+OBJECT_DECLARE_SIMPLE_TYPE(Ppc405EbcState, PPC405_EBC);
+struct Ppc405EbcState {
+    DeviceState parent_obj;
+
+    PowerPCCPU *cpu;
 
+    uint32_t addr;
+    uint32_t bcr[8];
+    uint32_t bap[8];
+    uint32_t bear;
+    uint32_t besr0;
+    uint32_t besr1;
+    uint32_t cfg;
+};
 
 /* DMA controller */
 #define TYPE_PPC405_DMA "ppc405-dma"
@@ -203,6 +218,7 @@ struct Ppc405SoCState {
     Ppc405OcmState ocm;
     Ppc405GpioState gpio;
     Ppc405DmaState dma;
+    Ppc405EbcState ebc;
 };
 
 /* PowerPC 405 core */
diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c
index 2978a2665a4f..8d73b8c2dff0 100644
--- a/hw/ppc/ppc405_uc.c
+++ b/hw/ppc/ppc405_uc.c
@@ -393,17 +393,6 @@ static void ppc4xx_opba_init(hwaddr base)
 
 /*****************************************************************************/
 /* Peripheral controller */
-typedef struct ppc4xx_ebc_t ppc4xx_ebc_t;
-struct ppc4xx_ebc_t {
-    uint32_t addr;
-    uint32_t bcr[8];
-    uint32_t bap[8];
-    uint32_t bear;
-    uint32_t besr0;
-    uint32_t besr1;
-    uint32_t cfg;
-};
-
 enum {
     EBC0_CFGADDR = 0x012,
     EBC0_CFGDATA = 0x013,
@@ -411,10 +400,9 @@ enum {
 
 static uint32_t dcr_read_ebc (void *opaque, int dcrn)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *ebc = PPC405_EBC(opaque);
     uint32_t ret;
 
-    ebc = opaque;
     switch (dcrn) {
     case EBC0_CFGADDR:
         ret = ebc->addr;
@@ -496,9 +484,8 @@ static uint32_t dcr_read_ebc (void *opaque, int dcrn)
 
 static void dcr_write_ebc (void *opaque, int dcrn, uint32_t val)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *ebc = PPC405_EBC(opaque);
 
-    ebc = opaque;
     switch (dcrn) {
     case EBC0_CFGADDR:
         ebc->addr = val;
@@ -554,12 +541,11 @@ static void dcr_write_ebc (void *opaque, int dcrn, 
uint32_t val)
     }
 }
 
-static void ebc_reset (void *opaque)
+static void ppc405_ebc_reset(DeviceState *dev)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *ebc = PPC405_EBC(dev);
     int i;
 
-    ebc = opaque;
     ebc->addr = 0x00000000;
     ebc->bap[0] = 0x7F8FFE80;
     ebc->bcr[0] = 0xFFE28000;
@@ -572,18 +558,46 @@ static void ebc_reset (void *opaque)
     ebc->cfg = 0x80400000;
 }
 
-void ppc405_ebc_init(CPUPPCState *env)
+static void ppc405_ebc_realize(DeviceState *dev, Error **errp)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *ebc = PPC405_EBC(dev);
+    CPUPPCState *env;
+
+    assert(ebc->cpu);
+
+    env = &ebc->cpu->env;
 
-    ebc = g_new0(ppc4xx_ebc_t, 1);
-    qemu_register_reset(&ebc_reset, ebc);
     ppc_dcr_register(env, EBC0_CFGADDR,
                      ebc, &dcr_read_ebc, &dcr_write_ebc);
     ppc_dcr_register(env, EBC0_CFGDATA,
                      ebc, &dcr_read_ebc, &dcr_write_ebc);
 }
 
+static Property ppc405_ebc_properties[] = {
+    DEFINE_PROP_LINK("cpu", Ppc405EbcState, cpu, TYPE_POWERPC_CPU,
+                     PowerPCCPU *),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
+static void ppc405_ebc_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = ppc405_ebc_realize;
+    dc->user_creatable = false;
+    dc->reset = ppc405_ebc_reset;
+    device_class_set_props(dc, ppc405_ebc_properties);
+}
+
+void ppc405_ebc_init(CPUPPCState *env)
+{
+    PowerPCCPU *cpu = env_archcpu(env);
+    DeviceState *dev = qdev_new(TYPE_PPC405_EBC);
+
+    object_property_set_link(OBJECT(cpu), "cpu", OBJECT(dev), &error_abort);
+    qdev_realize_and_unref(dev, NULL, &error_fatal);
+}
+
 /*****************************************************************************/
 /* DMA controller */
 enum {
@@ -1418,6 +1432,8 @@ static void ppc405_soc_instance_init(Object *obj)
     object_initialize_child(obj, "gpio", &s->gpio, TYPE_PPC405_GPIO);
 
     object_initialize_child(obj, "dma", &s->dma, TYPE_PPC405_DMA);
+
+    object_initialize_child(obj, "ebc", &s->ebc, TYPE_PPC405_EBC);
 }
 
 static void ppc405_soc_realize(DeviceState *dev, Error **errp)
@@ -1492,7 +1508,11 @@ static void ppc405_soc_realize(DeviceState *dev, Error 
**errp)
                       s->ram_bases, s->ram_sizes, s->do_dram_init);
 
     /* External bus controller */
-    ppc405_ebc_init(env);
+    object_property_set_link(OBJECT(&s->ebc), "cpu", OBJECT(&s->cpu),
+                             &error_abort);
+    if (!qdev_realize(DEVICE(&s->ebc), NULL, errp)) {
+        return;
+    }
 
     /* DMA controller */
     object_property_set_link(OBJECT(&s->dma), "cpu", OBJECT(&s->cpu),
@@ -1578,6 +1598,11 @@ static void ppc405_soc_class_init(ObjectClass *oc, void 
*data)
 
 static const TypeInfo ppc405_types[] = {
     {
+        .name           = TYPE_PPC405_EBC,
+        .parent         = TYPE_DEVICE,
+        .instance_size  = sizeof(Ppc405EbcState),
+        .class_init     = ppc405_ebc_class_init,
+    }, {
         .name           = TYPE_PPC405_DMA,
         .parent         = TYPE_SYS_BUS_DEVICE,
         .instance_size  = sizeof(Ppc405DmaState),
-- 
2.37.1