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dma: Add Xilinx Zynq devcfg device model

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Add a minimal model for the devcfg device which is part of Zynq.
This model supports DMA capabilities and interrupt generation.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 83df49d8fa2d203a421ca71620809e4b04754e65.1467053537.git.alistair.francis@xilinx.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alistair Francis 2016-07-04 13:06:37 +01:00 • committed by Peter Maydell
parent a74229597e
commit 034c2e6902
4 changed files with 464 additions and 0 deletions
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62
include/hw/dma/xlnx-zynq-devcfg.h Normal file
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/*
* QEMU model of the Xilinx Devcfg Interface
*
* (C) 2011 PetaLogix Pty Ltd
* (C) 2014 Xilinx Inc.
* Written by Peter Crosthwaite <peter.crosthwaite@xilinx.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
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#ifndef XLNX_ZYNQ_DEVCFG_H
#include "hw/register.h"
#include "hw/sysbus.h"
#define TYPE_XLNX_ZYNQ_DEVCFG "xlnx.ps7-dev-cfg"
#define XLNX_ZYNQ_DEVCFG(obj) \
OBJECT_CHECK(XlnxZynqDevcfg, (obj), TYPE_XLNX_ZYNQ_DEVCFG)
#define XLNX_ZYNQ_DEVCFG_R_MAX 0x118
#define XLNX_ZYNQ_DEVCFG_DMA_CMD_FIFO_LEN 10
typedef struct XlnxZynqDevcfgDMACmd {
uint32_t src_addr;
uint32_t dest_addr;
uint32_t src_len;
uint32_t dest_len;
} XlnxZynqDevcfgDMACmd;
typedef struct XlnxZynqDevcfg {
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq;
XlnxZynqDevcfgDMACmd dma_cmd_fifo[XLNX_ZYNQ_DEVCFG_DMA_CMD_FIFO_LEN];
uint8_t dma_cmd_fifo_num;
uint32_t regs[XLNX_ZYNQ_DEVCFG_R_MAX];
RegisterInfo regs_info[XLNX_ZYNQ_DEVCFG_R_MAX];
} XlnxZynqDevcfg;
#define XLNX_ZYNQ_DEVCFG_H
#endif