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/*
* Nordic Semiconductor nRF51 non-volatile memory
*
* It provides an interface to erase regions in flash memory.
* Furthermore it provides the user and factory information registers.
*
* QEMU interface:
* + sysbus MMIO regions 0: NVMC peripheral registers
* + sysbus MMIO regions 1: FICR peripheral registers
* + sysbus MMIO regions 2: UICR peripheral registers
* + flash-size property: flash size in bytes.
*
* Accuracy of the peripheral model:
* + Code regions (MPU configuration) are disregarded.
*
* Copyright 2018 Steffen Görtz <contrib@steffen-goertz.de>
*
* This code is licensed under the GPL version 2 or later. See
* the COPYING file in the top-level directory.
*
*/
#ifndef NRF51_NVM_H
#define NRF51_NVM_H
#include "hw/sysbus.h"
#define TYPE_NRF51_NVM "nrf51_soc.nvm"
#define NRF51_NVM(obj) OBJECT_CHECK(NRF51NVMState, (obj), TYPE_NRF51_NVM)
#define NRF51_UICR_FIXTURE_SIZE 64
#define NRF51_NVMC_SIZE 0x1000
#define NRF51_NVMC_READY 0x400
#define NRF51_NVMC_READY_READY 0x01
#define NRF51_NVMC_CONFIG 0x504
#define NRF51_NVMC_CONFIG_MASK 0x03
#define NRF51_NVMC_CONFIG_WEN 0x01
#define NRF51_NVMC_CONFIG_EEN 0x02
#define NRF51_NVMC_ERASEPCR1 0x508
#define NRF51_NVMC_ERASEPCR0 0x510
#define NRF51_NVMC_ERASEALL 0x50C
#define NRF51_NVMC_ERASEUICR 0x514
#define NRF51_NVMC_ERASE 0x01
#define NRF51_UICR_SIZE 0x100
typedef struct NRF51NVMState {
SysBusDevice parent_obj;
MemoryRegion mmio;
MemoryRegion ficr;
MemoryRegion uicr;
MemoryRegion flash;
uint32_t uicr_content[NRF51_UICR_FIXTURE_SIZE];
uint32_t flash_size;
uint8_t *storage;
uint32_t config;
} NRF51NVMState;
#endif
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