ppc/ppc405: QOM'ify EBC

EBC is currently modeled as a DCR device. Also drop the ppc405_ebc_init()
helper and adapt the sam460ex machine.

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
[balaton: ppc4xx_dcr_register changes]
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Message-Id: <51a0769ab605c5158f4f2f1c896725d5fe7a073b.1660746880.git.balaton@eik.bme.hu>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>

1 files changed, 32 insertions, 30 deletions

diff --git a/hw/ppc/ppc405_uc.c b/hw/ppc/ppc405_uc.c
index 3845c0fec1..ff81fb3e20 100644
--- a/hw/ppc/ppc405_uc.c
+++ b/hw/ppc/ppc405_uc.c
@@ -393,28 +393,16 @@ 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,
 };
 
-static uint32_t dcr_read_ebc (void *opaque, int dcrn)
+static uint32_t dcr_read_ebc(void *opaque, int dcrn)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *ebc = opaque;
     uint32_t ret;
 
-    ebc = opaque;
     switch (dcrn) {
     case EBC0_CFGADDR:
         ret = ebc->addr;
@@ -494,11 +482,10 @@ static uint32_t dcr_read_ebc (void *opaque, int dcrn)
     return ret;
 }
 
-static void dcr_write_ebc (void *opaque, int dcrn, uint32_t val)
+static void dcr_write_ebc(void *opaque, int dcrn, uint32_t val)
 {
-    ppc4xx_ebc_t *ebc;
+    Ppc405EbcState *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;
@@ -572,16 +558,23 @@ 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;
-
-    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);
+    Ppc405EbcState *ebc = PPC405_EBC(dev);
+    Ppc4xxDcrDeviceState *dcr = PPC4xx_DCR_DEVICE(dev);
+
+    ppc4xx_dcr_register(dcr, EBC0_CFGADDR, ebc, &dcr_read_ebc, &dcr_write_ebc);
+    ppc4xx_dcr_register(dcr, EBC0_CFGDATA, ebc, &dcr_read_ebc, &dcr_write_ebc);
+}
+
+static void ppc405_ebc_class_init(ObjectClass *oc, void *data)
+{
+    DeviceClass *dc = DEVICE_CLASS(oc);
+
+    dc->realize = ppc405_ebc_realize;
+    dc->reset = ppc405_ebc_reset;
+    /* Reason: only works as function of a ppc4xx SoC */
+    dc->user_creatable = false;
 }
 
 /*****************************************************************************/
@@ -1378,6 +1371,8 @@ 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_reset(void *opaque)
@@ -1444,7 +1439,9 @@ static void ppc405_soc_realize(DeviceState *dev, Error **errp)
                       s->do_dram_init);
 
     /* External bus controller */
-    ppc405_ebc_init(env);
+    if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->ebc), &s->cpu, errp)) {
+        return;
+    }
 
     /* DMA controller */
     if (!ppc4xx_dcr_realize(PPC4xx_DCR_DEVICE(&s->dma), &s->cpu, errp)) {
@@ -1526,6 +1523,11 @@ static void ppc405_soc_class_init(ObjectClass *oc, void *data)
 
 static const TypeInfo ppc405_types[] = {
     {
+        .name           = TYPE_PPC405_EBC,
+        .parent         = TYPE_PPC4xx_DCR_DEVICE,
+        .instance_size  = sizeof(Ppc405EbcState),
+        .class_init     = ppc405_ebc_class_init,
+    }, {
         .name           = TYPE_PPC405_DMA,
         .parent         = TYPE_PPC4xx_DCR_DEVICE,
         .instance_size  = sizeof(Ppc405DmaState),