| 1 | /* |
| 2 | * QEMU SiFive U OTP (One-Time Programmable) Memory interface |
| 3 | * |
| 4 | * Copyright (c) 2019 Bin Meng <bmeng.cn@gmail.com> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms and conditions of the GNU General Public License, |
| 8 | * version 2 or later, as published by the Free Software Foundation. |
| 9 | * |
| 10 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 13 | * more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License along with |
| 16 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | */ |
| 18 | |
| 19 | #ifndef HW_SIFIVE_U_OTP_H |
| 20 | #define HW_SIFIVE_U_OTP_H |
| 21 | |
| 22 | #include "hw/core/sysbus.h" |
| 23 | |
| 24 | #define SIFIVE_U_OTP_PA 0x00 |
| 25 | #define SIFIVE_U_OTP_PAIO 0x04 |
| 26 | #define SIFIVE_U_OTP_PAS 0x08 |
| 27 | #define SIFIVE_U_OTP_PCE 0x0C |
| 28 | #define SIFIVE_U_OTP_PCLK 0x10 |
| 29 | #define SIFIVE_U_OTP_PDIN 0x14 |
| 30 | #define SIFIVE_U_OTP_PDOUT 0x18 |
| 31 | #define SIFIVE_U_OTP_PDSTB 0x1C |
| 32 | #define SIFIVE_U_OTP_PPROG 0x20 |
| 33 | #define SIFIVE_U_OTP_PTC 0x24 |
| 34 | #define SIFIVE_U_OTP_PTM 0x28 |
| 35 | #define SIFIVE_U_OTP_PTM_REP 0x2C |
| 36 | #define SIFIVE_U_OTP_PTR 0x30 |
| 37 | #define SIFIVE_U_OTP_PTRIM 0x34 |
| 38 | #define SIFIVE_U_OTP_PWE 0x38 |
| 39 | |
| 40 | #define SIFIVE_U_OTP_PWE_EN (1 << 0) |
| 41 | |
| 42 | #define SIFIVE_U_OTP_PCE_EN (1 << 0) |
| 43 | |
| 44 | #define SIFIVE_U_OTP_PDSTB_EN (1 << 0) |
| 45 | |
| 46 | #define SIFIVE_U_OTP_PTRIM_EN (1 << 0) |
| 47 | |
| 48 | #define SIFIVE_U_OTP_PA_MASK 0xfff |
| 49 | #define SIFIVE_U_OTP_NUM_FUSES 0x1000 |
| 50 | #define SIFIVE_U_OTP_FUSE_WORD 4 |
| 51 | #define SIFIVE_U_OTP_SERIAL_ADDR 0xfc |
| 52 | |
| 53 | #define SIFIVE_U_OTP_REG_SIZE 0x1000 |
| 54 | |
| 55 | #define TYPE_SIFIVE_U_OTP "riscv.sifive.u.otp" |
| 56 | |
| 57 | typedef struct SiFiveUOTPState SiFiveUOTPState; |
| 58 | DECLARE_INSTANCE_CHECKER(SiFiveUOTPState, SIFIVE_U_OTP, |
| 59 | TYPE_SIFIVE_U_OTP) |
| 60 | |
| 61 | struct SiFiveUOTPState { |
| 62 | /*< private >*/ |
| 63 | SysBusDevice parent_obj; |
| 64 | |
| 65 | /*< public >*/ |
| 66 | MemoryRegion mmio; |
| 67 | uint32_t pa; |
| 68 | uint32_t paio; |
| 69 | uint32_t pas; |
| 70 | uint32_t pce; |
| 71 | uint32_t pclk; |
| 72 | uint32_t pdin; |
| 73 | uint32_t pdstb; |
| 74 | uint32_t pprog; |
| 75 | uint32_t ptc; |
| 76 | uint32_t ptm; |
| 77 | uint32_t ptm_rep; |
| 78 | uint32_t ptr; |
| 79 | uint32_t ptrim; |
| 80 | uint32_t pwe; |
| 81 | uint32_t fuse[SIFIVE_U_OTP_NUM_FUSES]; |
| 82 | uint32_t fuse_wo[SIFIVE_U_OTP_NUM_FUSES]; |
| 83 | /* config */ |
| 84 | uint32_t serial; |
| 85 | BlockBackend *blk; |
| 86 | }; |
| 87 | |
| 88 | #endif /* HW_SIFIVE_U_OTP_H */ |