include/hw/misc/sifive_u_otp.h

   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 #include "qom/object.h"
  22
  23 #define SIFIVE_U_OTP_PA         0x00
  24 #define SIFIVE_U_OTP_PAIO       0x04
  25 #define SIFIVE_U_OTP_PAS        0x08
  26 #define SIFIVE_U_OTP_PCE        0x0C
  27 #define SIFIVE_U_OTP_PCLK       0x10
  28 #define SIFIVE_U_OTP_PDIN       0x14
  29 #define SIFIVE_U_OTP_PDOUT      0x18
  30 #define SIFIVE_U_OTP_PDSTB      0x1C
  31 #define SIFIVE_U_OTP_PPROG      0x20
  32 #define SIFIVE_U_OTP_PTC        0x24
  33 #define SIFIVE_U_OTP_PTM        0x28
  34 #define SIFIVE_U_OTP_PTM_REP    0x2C
  35 #define SIFIVE_U_OTP_PTR        0x30
  36 #define SIFIVE_U_OTP_PTRIM      0x34
  37 #define SIFIVE_U_OTP_PWE        0x38
  38
  39 #define SIFIVE_U_OTP_PWE_EN     (1 << 0)
  40
  41 #define SIFIVE_U_OTP_PCE_EN     (1 << 0)
  42
  43 #define SIFIVE_U_OTP_PDSTB_EN   (1 << 0)
  44
  45 #define SIFIVE_U_OTP_PTRIM_EN   (1 << 0)
  46
  47 #define SIFIVE_U_OTP_PA_MASK        0xfff
  48 #define SIFIVE_U_OTP_NUM_FUSES      0x1000
  49 #define SIFIVE_U_OTP_FUSE_WORD      4
  50 #define SIFIVE_U_OTP_SERIAL_ADDR    0xfc
  51
  52 #define SIFIVE_U_OTP_REG_SIZE       0x1000
  53
  54 #define TYPE_SIFIVE_U_OTP           "riscv.sifive.u.otp"
  55
  56 typedef struct SiFiveUOTPState SiFiveUOTPState;
  57 DECLARE_INSTANCE_CHECKER(SiFiveUOTPState, SIFIVE_U_OTP,
  58                          TYPE_SIFIVE_U_OTP)
  59
  60 struct SiFiveUOTPState {
  61     /*< private >*/
  62     SysBusDevice parent_obj;
  63
  64     /*< public >*/
  65     MemoryRegion mmio;
  66     uint32_t pa;
  67     uint32_t paio;
  68     uint32_t pas;
  69     uint32_t pce;
  70     uint32_t pclk;
  71     uint32_t pdin;
  72     uint32_t pdstb;
  73     uint32_t pprog;
  74     uint32_t ptc;
  75     uint32_t ptm;
  76     uint32_t ptm_rep;
  77     uint32_t ptr;
  78     uint32_t ptrim;
  79     uint32_t pwe;
  80     uint32_t fuse[SIFIVE_U_OTP_NUM_FUSES];
  81     uint32_t fuse_wo[SIFIVE_U_OTP_NUM_FUSES];
  82     /* config */
  83     uint32_t serial;
  84     BlockBackend *blk;
  85 };
  86
  87 #endif /* HW_SIFIVE_U_OTP_H */