1 /* 2 * Copyright (c) 2020 Xilinx Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a copy 5 * of this software and associated documentation files (the "Software"), to deal 6 * in the Software without restriction, including without limitation the rights 7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 * copies of the Software, and to permit persons to whom the Software is 9 * furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 * THE SOFTWARE. 21 */ 22 #ifndef XLNX_VERSAL_EFUSE_H 23 #define XLNX_VERSAL_EFUSE_H 24 25 #include "hw/irq.h" 26 #include "hw/sysbus.h" 27 #include "hw/register.h" 28 #include "hw/nvram/xlnx-efuse.h" 29 30 #define XLNX_VERSAL_EFUSE_CTRL_R_MAX ((0x100 / 4) + 1) 31 32 #define TYPE_XLNX_VERSAL_EFUSE_CTRL "xlnx,versal-efuse" 33 #define TYPE_XLNX_VERSAL_EFUSE_CACHE "xlnx,pmc-efuse-cache" 34 35 OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalEFuseCtrl, XLNX_VERSAL_EFUSE_CTRL); 36 OBJECT_DECLARE_SIMPLE_TYPE(XlnxVersalEFuseCache, XLNX_VERSAL_EFUSE_CACHE); 37 38 struct XlnxVersalEFuseCtrl { 39 SysBusDevice parent_obj; 40 qemu_irq irq_efuse_imr; 41 42 XlnxEFuse *efuse; 43 44 void *extra_pg0_lock_spec; /* Opaque property */ 45 uint32_t extra_pg0_lock_n16; 46 47 uint32_t regs[XLNX_VERSAL_EFUSE_CTRL_R_MAX]; 48 RegisterInfo regs_info[XLNX_VERSAL_EFUSE_CTRL_R_MAX]; 49 }; 50 51 struct XlnxVersalEFuseCache { 52 SysBusDevice parent_obj; 53 MemoryRegion iomem; 54 55 XlnxEFuse *efuse; 56 }; 57 58 /** 59 * xlnx_versal_efuse_read_row: 60 * @s: the efuse object 61 * @bit: the bit-address within the 32-bit row to be read 62 * @denied: if non-NULL, to receive true if the row is write-only 63 * 64 * Returns: the 32-bit word containing address @bit; 0 if @denies is true 65 */ 66 uint32_t xlnx_versal_efuse_read_row(XlnxEFuse *s, uint32_t bit, bool *denied); 67 68 #endif 69