LXR qemu/include/hw/nvram/nrf51

   1/*
   2 * Nordic Semiconductor nRF51 non-volatile memory
   3 *
   4 * It provides an interface to erase regions in flash memory.
   5 * Furthermore it provides the user and factory information registers.
   6 *
   7 * QEMU interface:
   8 * + sysbus MMIO regions 0: NVMC peripheral registers
   9 * + sysbus MMIO regions 1: FICR peripheral registers
  10 * + sysbus MMIO regions 2: UICR peripheral registers
  11 * + flash-size property: flash size in bytes.
  12 *
  13 * Accuracy of the peripheral model:
  14 * + Code regions (MPU configuration) are disregarded.
  15 *
  16 * Copyright 2018 Steffen Görtz <contrib@steffen-goertz.de>
  17 *
  18 * This code is licensed under the GPL version 2 or later.  See
  19 * the COPYING file in the top-level directory.
  20 *
  21 */
  22#ifndef NRF51_NVM_H
  23#define NRF51_NVM_H
  24
  25#include "hw/sysbus.h"
  26#define TYPE_NRF51_NVM "nrf51_soc.nvm"
  27#define NRF51_NVM(obj) OBJECT_CHECK(NRF51NVMState, (obj), TYPE_NRF51_NVM)
  28
  29#define NRF51_UICR_FIXTURE_SIZE 64
  30
  31#define NRF51_NVMC_SIZE         0x1000
  32
  33#define NRF51_NVMC_READY        0x400
  34#define NRF51_NVMC_READY_READY  0x01
  35#define NRF51_NVMC_CONFIG       0x504
  36#define NRF51_NVMC_CONFIG_MASK  0x03
  37#define NRF51_NVMC_CONFIG_WEN   0x01
  38#define NRF51_NVMC_CONFIG_EEN   0x02
  39#define NRF51_NVMC_ERASEPCR1    0x508
  40#define NRF51_NVMC_ERASEPCR0    0x510
  41#define NRF51_NVMC_ERASEALL     0x50C
  42#define NRF51_NVMC_ERASEUICR    0x514
  43#define NRF51_NVMC_ERASE        0x01
  44
  45#define NRF51_UICR_SIZE         0x100
  46
  47typedef struct NRF51NVMState {
  48    SysBusDevice parent_obj;
  49
  50    MemoryRegion mmio;
  51    MemoryRegion ficr;
  52    MemoryRegion uicr;
  53    MemoryRegion flash;
  54
  55    uint32_t uicr_content[NRF51_UICR_FIXTURE_SIZE];
  56    uint32_t flash_size;
  57    uint8_t *storage;
  58
  59    uint32_t config;
  60
  61} NRF51NVMState;
  62
  63
  64#endif
  65