hw/intc/armv7m_nvic: Provide default "reset the system" behaviour for SYSRESETREQ
[qemu.git] / 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