62be393423
Add support for emulating the Xilinx AXI Root Port Bridge for PCI Express as described by Xilinx' PG055 document. This is a PCIe controller that can be used with certain series of Xilinx FPGAs, and is used on the MIPS Boston board which will make use of this code. Signed-off-by: Paul Burton <paul.burton@imgtec.com> [yongbok.kim@imgtec.com: removed returning on !level, updated IRQ connection with GPIO logic, moved xilinx_pcie_init() to boston.c replaced stw_le_p() with pci_set_word() and other cosmetic changes] Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com>
69 lines
1.8 KiB
C
69 lines
1.8 KiB
C
/*
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* Xilinx PCIe host controller emulation.
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*
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* Copyright (c) 2016 Imagination Technologies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_XILINX_PCIE_H
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#define HW_XILINX_PCIE_H
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#include "hw/hw.h"
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#include "hw/sysbus.h"
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#include "hw/pci/pci.h"
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#include "hw/pci/pci_bus.h"
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#include "hw/pci/pcie_host.h"
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#define TYPE_XILINX_PCIE_HOST "xilinx-pcie-host"
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#define XILINX_PCIE_HOST(obj) \
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OBJECT_CHECK(XilinxPCIEHost, (obj), TYPE_XILINX_PCIE_HOST)
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#define TYPE_XILINX_PCIE_ROOT "xilinx-pcie-root"
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#define XILINX_PCIE_ROOT(obj) \
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OBJECT_CHECK(XilinxPCIERoot, (obj), TYPE_XILINX_PCIE_ROOT)
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typedef struct XilinxPCIERoot {
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PCIBridge parent_obj;
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} XilinxPCIERoot;
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typedef struct XilinxPCIEInt {
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uint32_t fifo_reg1;
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uint32_t fifo_reg2;
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} XilinxPCIEInt;
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typedef struct XilinxPCIEHost {
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PCIExpressHost parent_obj;
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char name[16];
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uint32_t bus_nr;
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uint64_t cfg_base, cfg_size;
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uint64_t mmio_base, mmio_size;
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bool link_up;
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qemu_irq irq;
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MemoryRegion mmio, io;
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XilinxPCIERoot root;
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uint32_t intr;
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uint32_t intr_mask;
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XilinxPCIEInt intr_fifo[16];
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unsigned int intr_fifo_r, intr_fifo_w;
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uint32_t rpscr;
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} XilinxPCIEHost;
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#endif /* HW_XILINX_PCIE_H */
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