include/hw/nvram/nrf51_nvm.h

   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
  47 typedef 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