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xlnx-zynqmp-rtc: Initial commit

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Initial commit of the ZynqMP RTC device.

Signed-off-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alistair Francis 2018-03-02 10:45:34 +00:00 • committed by Peter Maydell
parent 427cbc7e41
commit 07664ca68b
3 changed files with 299 additions and 0 deletions
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84
include/hw/timer/xlnx-zynqmp-rtc.h Normal file
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/*
* QEMU model of the Xilinx ZynqMP Real Time Clock (RTC).
*
* Copyright (c) 2017 Xilinx Inc.
*
* Written-by: Alistair Francis <alistair.francis@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.
*/
#include "hw/register.h"
#define TYPE_XLNX_ZYNQMP_RTC "xlnx-zynmp.rtc"
#define XLNX_ZYNQMP_RTC(obj) \
OBJECT_CHECK(XlnxZynqMPRTC, (obj), TYPE_XLNX_ZYNQMP_RTC)
REG32(SET_TIME_WRITE, 0x0)
REG32(SET_TIME_READ, 0x4)
REG32(CALIB_WRITE, 0x8)
FIELD(CALIB_WRITE, FRACTION_EN, 20, 1)
FIELD(CALIB_WRITE, FRACTION_DATA, 16, 4)
FIELD(CALIB_WRITE, MAX_TICK, 0, 16)
REG32(CALIB_READ, 0xc)
FIELD(CALIB_READ, FRACTION_EN, 20, 1)
FIELD(CALIB_READ, FRACTION_DATA, 16, 4)
FIELD(CALIB_READ, MAX_TICK, 0, 16)
REG32(CURRENT_TIME, 0x10)
REG32(CURRENT_TICK, 0x14)
FIELD(CURRENT_TICK, VALUE, 0, 16)
REG32(ALARM, 0x18)
REG32(RTC_INT_STATUS, 0x20)
FIELD(RTC_INT_STATUS, ALARM, 1, 1)
FIELD(RTC_INT_STATUS, SECONDS, 0, 1)
REG32(RTC_INT_MASK, 0x24)
FIELD(RTC_INT_MASK, ALARM, 1, 1)
FIELD(RTC_INT_MASK, SECONDS, 0, 1)
REG32(RTC_INT_EN, 0x28)
FIELD(RTC_INT_EN, ALARM, 1, 1)
FIELD(RTC_INT_EN, SECONDS, 0, 1)
REG32(RTC_INT_DIS, 0x2c)
FIELD(RTC_INT_DIS, ALARM, 1, 1)
FIELD(RTC_INT_DIS, SECONDS, 0, 1)
REG32(ADDR_ERROR, 0x30)
FIELD(ADDR_ERROR, STATUS, 0, 1)
REG32(ADDR_ERROR_INT_MASK, 0x34)
FIELD(ADDR_ERROR_INT_MASK, MASK, 0, 1)
REG32(ADDR_ERROR_INT_EN, 0x38)
FIELD(ADDR_ERROR_INT_EN, MASK, 0, 1)
REG32(ADDR_ERROR_INT_DIS, 0x3c)
FIELD(ADDR_ERROR_INT_DIS, MASK, 0, 1)
REG32(CONTROL, 0x40)
FIELD(CONTROL, BATTERY_DISABLE, 31, 1)
FIELD(CONTROL, OSC_CNTRL, 24, 4)
FIELD(CONTROL, SLVERR_ENABLE, 0, 1)
REG32(SAFETY_CHK, 0x50)
#define XLNX_ZYNQMP_RTC_R_MAX (R_SAFETY_CHK + 1)
typedef struct XlnxZynqMPRTC {
SysBusDevice parent_obj;
MemoryRegion iomem;
qemu_irq irq_rtc_int;
qemu_irq irq_addr_error_int;
uint32_t regs[XLNX_ZYNQMP_RTC_R_MAX];
RegisterInfo regs_info[XLNX_ZYNQMP_RTC_R_MAX];
} XlnxZynqMPRTC;