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 #include "qom/object.h" 27 #define TYPE_NRF51_NVM "nrf51_soc.nvm" 28 OBJECT_DECLARE_SIMPLE_TYPE(NRF51NVMState, NRF51_NVM) 29 30 #define NRF51_UICR_FIXTURE_SIZE 64 31 32 #define NRF51_NVMC_SIZE 0x1000 33 34 #define NRF51_NVMC_READY 0x400 35 #define NRF51_NVMC_READY_READY 0x01 36 #define NRF51_NVMC_CONFIG 0x504 37 #define NRF51_NVMC_CONFIG_MASK 0x03 38 #define NRF51_NVMC_CONFIG_WEN 0x01 39 #define NRF51_NVMC_CONFIG_EEN 0x02 40 #define NRF51_NVMC_ERASEPCR1 0x508 41 #define NRF51_NVMC_ERASEPCR0 0x510 42 #define NRF51_NVMC_ERASEALL 0x50C 43 #define NRF51_NVMC_ERASEUICR 0x514 44 #define NRF51_NVMC_ERASE 0x01 45 46 #define NRF51_UICR_SIZE 0x100 47 48 struct NRF51NVMState { 49 SysBusDevice parent_obj; 50 51 MemoryRegion mmio; 52 MemoryRegion ficr; 53 MemoryRegion uicr; 54 MemoryRegion flash; 55 56 uint32_t uicr_content[NRF51_UICR_FIXTURE_SIZE]; 57 uint32_t flash_size; 58 uint8_t *storage; 59 60 uint32_t config; 61 62 }; 63 64 65 #endif 66