65ad1da23e
Per the 'ARM MPS2 and MPS2+ FPGA Prototyping Boards Technical
Reference Manual' (100112_0200_07_en):
2.1 Overview of the MPS2 and MPS2+ hardware
The MPS2 and MPS2+ FPGA Prototyping Boards contain the
following components and interfaces:
* User switches and user LEDs:
- Two green LEDs and two push buttons that connect to
the FPGA.
- Eight green LEDs and one 8-way dip switch that connect
to the MCC.
Add the 2 LEDs connected to the FPGA.
This replaces the 'mps2_fpgaio_leds' trace events by the generic
'led_set_intensity' event.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-Id: <20200912134041.946260-6-f4bug@amsat.org>
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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* ARM MPS2 FPGAIO emulation
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*
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* Copyright (c) 2018 Linaro Limited
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* Written by Peter Maydell
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 or
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* (at your option) any later version.
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*/
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/* This is a model of the FPGAIO register block in the AN505
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* FPGA image for the MPS2 dev board; it is documented in the
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* application note:
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* http://infocenter.arm.com/help/topic/com.arm.doc.dai0505b/index.html
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*
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* QEMU interface:
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* + sysbus MMIO region 0: the register bank
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*/
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#ifndef MPS2_FPGAIO_H
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#define MPS2_FPGAIO_H
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#include "hw/sysbus.h"
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#include "hw/misc/led.h"
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#include "qom/object.h"
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#define TYPE_MPS2_FPGAIO "mps2-fpgaio"
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OBJECT_DECLARE_SIMPLE_TYPE(MPS2FPGAIO, MPS2_FPGAIO)
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struct MPS2FPGAIO {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion iomem;
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LEDState *led[2];
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uint32_t led0;
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uint32_t prescale;
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uint32_t misc;
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/* QEMU_CLOCK_VIRTUAL time at which counter and pscntr were last synced */
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int64_t pscntr_sync_ticks;
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/* Values of COUNTER and PSCNTR at time pscntr_sync_ticks */
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uint32_t counter;
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uint32_t pscntr;
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uint32_t prescale_clk;
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/* These hold the CLOCK_VIRTUAL ns tick when the CLK1HZ/CLK100HZ was zero */
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int64_t clk1hz_tick_offset;
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int64_t clk100hz_tick_offset;
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};
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#endif
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