1 /* 2 * QEMU model of the Xilinx ZynqMP Real Time Clock (RTC). 3 * 4 * Copyright (c) 2017 Xilinx Inc. 5 * 6 * Written-by: Alistair Francis 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a copy 9 * of this software and associated documentation files (the "Software"), to deal 10 * in the Software without restriction, including without limitation the rights 11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 12 * copies of the Software, and to permit persons to whom the Software is 13 * furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included in 16 * all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 24 * THE SOFTWARE. 25 */ 26 27 #ifndef HW_RTC_XLNX_ZYNQMP_H 28 #define HW_RTC_XLNX_ZYNQMP_H 29 30 #include "hw/register.h" 31 #include "hw/sysbus.h" 32 33 #define TYPE_XLNX_ZYNQMP_RTC "xlnx-zynmp.rtc" 34 35 #define XLNX_ZYNQMP_RTC(obj) \ 36 OBJECT_CHECK(XlnxZynqMPRTC, (obj), TYPE_XLNX_ZYNQMP_RTC) 37 38 REG32(SET_TIME_WRITE, 0x0) 39 REG32(SET_TIME_READ, 0x4) 40 REG32(CALIB_WRITE, 0x8) 41 FIELD(CALIB_WRITE, FRACTION_EN, 20, 1) 42 FIELD(CALIB_WRITE, FRACTION_DATA, 16, 4) 43 FIELD(CALIB_WRITE, MAX_TICK, 0, 16) 44 REG32(CALIB_READ, 0xc) 45 FIELD(CALIB_READ, FRACTION_EN, 20, 1) 46 FIELD(CALIB_READ, FRACTION_DATA, 16, 4) 47 FIELD(CALIB_READ, MAX_TICK, 0, 16) 48 REG32(CURRENT_TIME, 0x10) 49 REG32(CURRENT_TICK, 0x14) 50 FIELD(CURRENT_TICK, VALUE, 0, 16) 51 REG32(ALARM, 0x18) 52 REG32(RTC_INT_STATUS, 0x20) 53 FIELD(RTC_INT_STATUS, ALARM, 1, 1) 54 FIELD(RTC_INT_STATUS, SECONDS, 0, 1) 55 REG32(RTC_INT_MASK, 0x24) 56 FIELD(RTC_INT_MASK, ALARM, 1, 1) 57 FIELD(RTC_INT_MASK, SECONDS, 0, 1) 58 REG32(RTC_INT_EN, 0x28) 59 FIELD(RTC_INT_EN, ALARM, 1, 1) 60 FIELD(RTC_INT_EN, SECONDS, 0, 1) 61 REG32(RTC_INT_DIS, 0x2c) 62 FIELD(RTC_INT_DIS, ALARM, 1, 1) 63 FIELD(RTC_INT_DIS, SECONDS, 0, 1) 64 REG32(ADDR_ERROR, 0x30) 65 FIELD(ADDR_ERROR, STATUS, 0, 1) 66 REG32(ADDR_ERROR_INT_MASK, 0x34) 67 FIELD(ADDR_ERROR_INT_MASK, MASK, 0, 1) 68 REG32(ADDR_ERROR_INT_EN, 0x38) 69 FIELD(ADDR_ERROR_INT_EN, MASK, 0, 1) 70 REG32(ADDR_ERROR_INT_DIS, 0x3c) 71 FIELD(ADDR_ERROR_INT_DIS, MASK, 0, 1) 72 REG32(CONTROL, 0x40) 73 FIELD(CONTROL, BATTERY_DISABLE, 31, 1) 74 FIELD(CONTROL, OSC_CNTRL, 24, 4) 75 FIELD(CONTROL, SLVERR_ENABLE, 0, 1) 76 REG32(SAFETY_CHK, 0x50) 77 78 #define XLNX_ZYNQMP_RTC_R_MAX (R_SAFETY_CHK + 1) 79 80 typedef struct XlnxZynqMPRTC { 81 SysBusDevice parent_obj; 82 MemoryRegion iomem; 83 qemu_irq irq_rtc_int; 84 qemu_irq irq_addr_error_int; 85 86 uint32_t tick_offset; 87 88 uint32_t regs[XLNX_ZYNQMP_RTC_R_MAX]; 89 RegisterInfo regs_info[XLNX_ZYNQMP_RTC_R_MAX]; 90 } XlnxZynqMPRTC; 91 92 #endif 93