dc3b89ef87
The Xilinx ZynqMP SoC and EP108 board supports three memory regions: - A 2GB region starting at 0 - A 32GB region starting at 32GB - A 256GB region starting at 768GB This patch adds support for the first two memory regions, which is automatically created based on the size specified by the QEMU memory command line argument. On hardware the physical memory region is one continuous region, it is then mapped into the three different regions by the DDRC. As we don't model the DDRC this is done at startup by QEMU. The board creates the memory region and then passes that memory region to the SoC. The SoC then maps the memory regions. Signed-off-by: Alistair Francis <alistair.francis@xilinx.com> Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com> Message-id: a1e47db941d65733724a300fcd98b74fbeeaaf22.1452637205.git.alistair.francis@xilinx.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
80 lines
2.5 KiB
C
80 lines
2.5 KiB
C
/*
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* Xilinx ZynqMP EP108 board
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*
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* Copyright (C) 2015 Xilinx Inc
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* Written by Peter Crosthwaite <peter.crosthwaite@xilinx.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "hw/arm/xlnx-zynqmp.h"
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#include "hw/boards.h"
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#include "qemu/error-report.h"
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#include "exec/address-spaces.h"
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typedef struct XlnxEP108 {
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XlnxZynqMPState soc;
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MemoryRegion ddr_ram;
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} XlnxEP108;
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static struct arm_boot_info xlnx_ep108_binfo;
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static void xlnx_ep108_init(MachineState *machine)
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{
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XlnxEP108 *s = g_new0(XlnxEP108, 1);
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Error *err = NULL;
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uint64_t ram_size = machine->ram_size;
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/* Create the memory region to pass to the SoC */
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if (ram_size > XLNX_ZYNQMP_MAX_RAM_SIZE) {
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error_report("ERROR: RAM size 0x%" PRIx64 " above max supported of "
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"0x%llx", ram_size,
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XLNX_ZYNQMP_MAX_RAM_SIZE);
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exit(1);
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}
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if (ram_size < 0x08000000) {
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qemu_log("WARNING: RAM size 0x%" PRIx64 " is small for EP108",
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ram_size);
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}
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memory_region_allocate_system_memory(&s->ddr_ram, NULL, "ddr-ram",
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ram_size);
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object_initialize(&s->soc, sizeof(s->soc), TYPE_XLNX_ZYNQMP);
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object_property_add_child(OBJECT(machine), "soc", OBJECT(&s->soc),
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&error_abort);
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object_property_set_link(OBJECT(&s->soc), OBJECT(&s->ddr_ram),
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"ddr-ram", &error_abort);
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object_property_set_bool(OBJECT(&s->soc), true, "realized", &err);
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if (err) {
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error_report_err(err);
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exit(1);
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}
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xlnx_ep108_binfo.ram_size = ram_size;
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xlnx_ep108_binfo.kernel_filename = machine->kernel_filename;
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xlnx_ep108_binfo.kernel_cmdline = machine->kernel_cmdline;
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xlnx_ep108_binfo.initrd_filename = machine->initrd_filename;
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xlnx_ep108_binfo.loader_start = 0;
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arm_load_kernel(s->soc.boot_cpu_ptr, &xlnx_ep108_binfo);
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}
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static void xlnx_ep108_machine_init(MachineClass *mc)
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{
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mc->desc = "Xilinx ZynqMP EP108 board";
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mc->init = xlnx_ep108_init;
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}
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DEFINE_MACHINE("xlnx-ep108", xlnx_ep108_machine_init)
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