msf2: Add EMAC block to SmartFusion2 SoC

With SmartFusion2 Ethernet MAC model in
place this patch adds the same to SoC.

Signed-off-by: Subbaraya Sundeep <sundeep.lkml@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1587048891-30493-3-git-send-email-sundeep.lkml@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 24 insertions, 2 deletions

diff --git a/hw/arm/msf2-soc.c b/hw/arm/msf2-soc.c
index 588d643..a455b88 100644
--- a/hw/arm/msf2-soc.c
+++ b/hw/arm/msf2-soc.c
@@ -1,7 +1,7 @@
 /*
  * SmartFusion2 SoC emulation.
  *
- * Copyright (c) 2017 Subbaraya Sundeep <sundeep.lkml@gmail.com>
+ * Copyright (c) 2017-2020 Subbaraya Sundeep <sundeep.lkml@gmail.com>
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -35,11 +35,14 @@
 
 #define MSF2_TIMER_BASE       0x40004000
 #define MSF2_SYSREG_BASE      0x40038000
+#define MSF2_EMAC_BASE        0x40041000
 
 #define ENVM_BASE_ADDRESS     0x60000000
 
 #define SRAM_BASE_ADDRESS     0x20000000
 
+#define MSF2_EMAC_IRQ         12
+
 #define MSF2_ENVM_MAX_SIZE    (512 * KiB)
 
 /*
@@ -81,6 +84,13 @@ static void m2sxxx_soc_initfn(Object *obj)
         sysbus_init_child_obj(obj, "spi[*]", &s->spi[i], sizeof(s->spi[i]),
                           TYPE_MSS_SPI);
     }
+
+    sysbus_init_child_obj(obj, "emac", &s->emac, sizeof(s->emac),
+                          TYPE_MSS_EMAC);
+    if (nd_table[0].used) {
+        qemu_check_nic_model(&nd_table[0], TYPE_MSS_EMAC);
+        qdev_set_nic_properties(DEVICE(&s->emac), &nd_table[0]);
+    }
 }
 
 static void m2sxxx_soc_realize(DeviceState *dev_soc, Error **errp)
@@ -192,6 +202,19 @@ static void m2sxxx_soc_realize(DeviceState *dev_soc, Error **errp)
         g_free(bus_name);
     }
 
+    dev = DEVICE(&s->emac);
+    object_property_set_link(OBJECT(&s->emac), OBJECT(get_system_memory()),
+                             "ahb-bus", &error_abort);
+    object_property_set_bool(OBJECT(&s->emac), true, "realized", &err);
+    if (err != NULL) {
+        error_propagate(errp, err);
+        return;
+    }
+    busdev = SYS_BUS_DEVICE(dev);
+    sysbus_mmio_map(busdev, 0, MSF2_EMAC_BASE);
+    sysbus_connect_irq(busdev, 0,
+                       qdev_get_gpio_in(armv7m, MSF2_EMAC_IRQ));
+
     /* Below devices are not modelled yet. */
     create_unimplemented_device("i2c_0", 0x40002000, 0x1000);
     create_unimplemented_device("dma", 0x40003000, 0x1000);
@@ -202,7 +225,6 @@ static void m2sxxx_soc_realize(DeviceState *dev_soc, Error **errp)
     create_unimplemented_device("can", 0x40015000, 0x1000);
     create_unimplemented_device("rtc", 0x40017000, 0x1000);
     create_unimplemented_device("apb_config", 0x40020000, 0x10000);
-    create_unimplemented_device("emac", 0x40041000, 0x1000);
     create_unimplemented_device("usb", 0x40043000, 0x1000);
 }