1 files changed, 64 insertions, 0 deletions
diff --git a/include/hw/nvram/nrf51_nvm.h b/include/hw/nvram/nrf51_nvm.h
new file mode 100644
index 0000000000..3792e4a9fe
--- /dev/null
+++ b/include/hw/nvram/nrf51_nvm.h
@@ -0,0 +1,64 @@
+/*
+ * 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