[Qemu-devel] [PATCH 1/4] target-openrisc: Add IDE support to default machine

[Valentin Manea <valentin.manea@gmail.com>]

Add MMIO ide device support to the default openrisc machine.

Base address and IRQ line are the same as the or1ksim.

Signed-off-by: Valentin Manea <valentin.manea@gmail.com>
---
 default-configs/or32-softmmu.mak |  3 +++
 hw/openrisc/openrisc_sim.c       | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/default-configs/or32-softmmu.mak
b/default-configs/or32-softmmu.mak
index cce4746..c3ff078 100644
--- a/default-configs/or32-softmmu.mak
+++ b/default-configs/or32-softmmu.mak
@@ -2,3 +2,6 @@

 CONFIG_SERIAL=y
 CONFIG_OPENCORES_ETH=y
+CONFIG_IDE_CORE=y
+CONFIG_IDE_QDEV=y
+CONFIG_IDE_MMIO=y
diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
index b2b4f9b..da8647f 100644
--- a/hw/openrisc/openrisc_sim.c
+++ b/hw/openrisc/openrisc_sim.c
@@ -24,9 +24,11 @@
 #include "hw/char/serial.h"
 #include "net/net.h"
 #include "hw/loader.h"
+#include "hw/ide.h"
 #include "exec/address-spaces.h"
 #include "sysemu/sysemu.h"
 #include "hw/sysbus.h"
+#include "sysemu/blockdev.h"
 #include "sysemu/qtest.h"

 #define KERNEL_LOAD_ADDR 0x100
@@ -38,6 +40,32 @@ static void main_cpu_reset(void *opaque)
     cpu_reset(CPU(cpu));
 }

+static void openrisc_sim_ide_init(MemoryRegion *address_space,
+                                  hwaddr base,
+                                  hwaddr descriptors,
+                                  qemu_irq irq)
+{
+    DeviceState *dev;
+    SysBusDevice *busdev;
+    DriveInfo *dinfo;
+
+
+    dinfo = drive_get(IF_IDE, 0, 0);
+    if (!dinfo) {
+        return;
+    }
+    dev = qdev_create(NULL, "mmio-ide");
+    busdev = SYS_BUS_DEVICE(dev);
+    sysbus_connect_irq(busdev, 0, irq);
+    qdev_prop_set_uint32(dev, "shift", 2);
+    qdev_init_nofail(dev);
+    memory_region_add_subregion(address_space, base,
+                                sysbus_mmio_get_region(busdev, 0));
+    memory_region_add_subregion(address_space, descriptors,
+                                sysbus_mmio_get_region(busdev, 1));
+    mmio_ide_init_drives(dev, dinfo, NULL);
+}
+
 static void openrisc_sim_net_init(MemoryRegion *address_space,
                                   hwaddr base,
                                   hwaddr descriptors,
@@ -129,6 +157,10 @@ static void openrisc_sim_init(MachineState *machine)
                               0x92000400, cpu->env.irq[4], nd_table);
     }

+    /* Platform ATA device */
+    openrisc_sim_ide_init(get_system_memory(), 0x9e000000,
+                     0x9e000100, cpu->env.irq[15]);
+
     cpu_openrisc_load_kernel(ram_size, kernel_filename, cpu);
 }

-- 
1.9.1