Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160614-2' into staging

target-arm queue:
 * add PMU support for virt machine under KVM
 * fix reset and migration of TTBCR(S)
 * add virt-2.7 machine type
 * QOMify various ARM devices
 * implement xilinx DisplayPort device
 * don't permit ARMv8-only Neon insns to work on ARMv7

# gpg: Signature made Tue 14 Jun 2016 16:01:45 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20160614-2: (30 commits)
  target-arm: Don't permit ARMv8-only Neon insns on ARMv7
  arm: xlnx-zynqmp: Add xlnx-dp and xlnx-dpdma
  introduce xlnx-dp
  introduce xlnx-dpdma
  hw/i2c-ddc.c: Implement DDC I2C slave
  introduce dpcd module
  introduce aux-bus
  i2c: Factor our send() and recv() common logic
  i2c: implement broadcast write
  i2cbus: remove unused dev field
  hw/sd: QOM'ify pl181.c
  hw/dma: QOM'ify pxa2xx_dma.c
  hw/misc: QOM'ify mst_fpga.c
  hw/misc: QOM'ify exynos4210_pmu.c
  hw/misc: QOM'ify arm_l2x0.c
  hw/gpio: QOM'ify zaurus.c
  hw/gpio: QOM'ify pl061.c
  hw/gpio: QOM'ify omap_gpio.c
  hw/i2c: QOM'ify versatile_i2c.c
  hw/i2c: QOM'ify omap_i2c.c
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 128 insertions, 0 deletions

diff --git a/include/hw/misc/aux.h b/include/hw/misc/aux.h
new file mode 100644
index 0000000000..759c3bf20c
--- /dev/null
+++ b/include/hw/misc/aux.h
@@ -0,0 +1,128 @@
+/*
+ * aux.h
+ *
+ *  Copyright (C)2014 : GreenSocs Ltd
+ *      http://www.greensocs.com/ , email: info@greensocs.com
+ *
+ *  Developed by :
+ *  Frederic Konrad   <fred.konrad@greensocs.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option)any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef QEMU_AUX_H
+#define QEMU_AUX_H
+
+#include "hw/qdev.h"
+
+typedef struct AUXBus AUXBus;
+typedef struct AUXSlave AUXSlave;
+typedef enum AUXCommand AUXCommand;
+typedef enum AUXReply AUXReply;
+typedef struct AUXTOI2CState AUXTOI2CState;
+
+enum AUXCommand {
+    WRITE_I2C = 0,
+    READ_I2C = 1,
+    WRITE_I2C_STATUS = 2,
+    WRITE_I2C_MOT = 4,
+    READ_I2C_MOT = 5,
+    WRITE_AUX = 8,
+    READ_AUX = 9
+};
+
+enum AUXReply {
+    AUX_I2C_ACK = 0,
+    AUX_NACK = 1,
+    AUX_DEFER = 2,
+    AUX_I2C_NACK = 4,
+    AUX_I2C_DEFER = 8
+};
+
+#define TYPE_AUX_BUS "aux-bus"
+#define AUX_BUS(obj) OBJECT_CHECK(AUXBus, (obj), TYPE_AUX_BUS)
+
+struct AUXBus {
+    /* < private > */
+    BusState qbus;
+
+    /* < public > */
+    AUXSlave *current_dev;
+    AUXSlave *dev;
+    uint32_t last_i2c_address;
+    AUXCommand last_transaction;
+
+    AUXTOI2CState *bridge;
+
+    MemoryRegion *aux_io;
+    AddressSpace aux_addr_space;
+};
+
+#define TYPE_AUX_SLAVE "aux-slave"
+#define AUX_SLAVE(obj) \
+     OBJECT_CHECK(AUXSlave, (obj), TYPE_AUX_SLAVE)
+
+struct AUXSlave {
+    /* < private > */
+    DeviceState parent_obj;
+
+    /* < public > */
+    MemoryRegion *mmio;
+};
+
+/**
+ * aux_init_bus: Initialize an AUX bus.
+ *
+ * Returns the new AUX bus created.
+ *
+ * @parent The device where this bus is located.
+ * @name The name of the bus.
+ */
+AUXBus *aux_init_bus(DeviceState *parent, const char *name);
+
+/*
+ * aux_request: Make a request on the bus.
+ *
+ * Returns the reply of the request.
+ *
+ * @bus Ths bus where the request happen.
+ * @cmd The command requested.
+ * @address The 20bits address of the slave.
+ * @len The length of the read or write.
+ * @data The data array which will be filled or read during transfer.
+ */
+AUXReply aux_request(AUXBus *bus, AUXCommand cmd, uint32_t address,
+                              uint8_t len, uint8_t *data);
+
+/*
+ * aux_get_i2c_bus: Get the i2c bus for I2C over AUX command.
+ *
+ * Returns the i2c bus associated to this AUX bus.
+ *
+ * @bus The AUX bus.
+ */
+I2CBus *aux_get_i2c_bus(AUXBus *bus);
+
+/*
+ * aux_init_mmio: Init an mmio for an AUX slave.
+ *
+ * @aux_slave The AUX slave.
+ * @mmio The mmio to be registered.
+ */
+void aux_init_mmio(AUXSlave *aux_slave, MemoryRegion *mmio);
+
+DeviceState *aux_create_slave(AUXBus *bus, const char *name, uint32_t addr);
+
+#endif /* !QEMU_AUX_H */