hw/arm/mps2: Add ethernet

The MPS2 FPGA images support ethernet via a LAN9220. We use
QEMU's LAN9118 model, which is software compatible except
that it is missing the checksum-offload feature.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1500029487-14822-9-git-send-email-peter.maydell@linaro.org
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>

diff --git a/hw/arm/mps2.c b/hw/arm/mps2.c
index 80ee79eede7b5e28a59fbc406109a10dd6fc4e14..f727b4378bd03b043dc397866c206be0acff8f9e 100644 (file)
--- a/hw/arm/mps2.c
+++ b/hw/arm/mps2.c
@@ -35,6 +35,8 @@
 #include "hw/char/cmsdk-apb-uart.h"
 #include "hw/timer/cmsdk-apb-timer.h"
 #include "hw/misc/mps2-scc.h"
+#include "hw/devices.h"
+#include "net/net.h"
 
 typedef enum MPS2FPGAType {
     FPGA_AN385,
@@ -209,7 +211,6 @@ static void mps2_common_init(MachineState *machine)
     create_unimplemented_device("Extra peripheral region @0x40020000",
                                 0x40020000, 0x00010000);
     create_unimplemented_device("RESERVED 4", 0x40030000, 0x001D0000);
-    create_unimplemented_device("Ethernet", 0x40200000, 0x00100000);
     create_unimplemented_device("VGA", 0x41000000, 0x0200000);
 
     switch (mmc->fpga_type) {
@@ -310,6 +311,13 @@ static void mps2_common_init(MachineState *machine)
                              &error_fatal);
     sysbus_mmio_map(SYS_BUS_DEVICE(sccdev), 0, 0x4002f000);
 
+    /* In hardware this is a LAN9220; the LAN9118 is software compatible
+     * except that it doesn't support the checksum-offload feature.
+     */
+    lan9118_init(&nd_table[0], 0x40200000,
+                 qdev_get_gpio_in(armv7m,
+                                  mmc->fpga_type == FPGA_AN385 ? 13 : 47));
+
     system_clock_scale = NANOSECONDS_PER_SECOND / SYSCLK_FRQ;
 
     armv7m_load_kernel(ARM_CPU(first_cpu), machine->kernel_filename,