Import Mbed OS hard-float snapshot

targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/flash_api.c

@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2016, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "flash_api.h"
+#include "mbed_critical.h"
+
+#if DEVICE_FLASH
+
+#include "fsl_flash.h"
+
+int32_t flash_init(flash_t *obj)
+{
+    status_t result;
+
+    /* Clean up Flash driver Structure*/
+    memset(&obj->flash_config, 0, sizeof(flash_config_t));
+
+    /* Setup flash driver structure for device and initialize variables. */
+    result = FLASH_Init(&obj->flash_config);
+    if (kStatus_FLASH_Success != result) {
+        return -1;
+    } else {
+        return 0;
+    }
+}
+
+int32_t flash_free(flash_t *obj)
+{
+    return 0;
+}
+
+int32_t flash_erase_sector(flash_t *obj, uint32_t address)
+{
+    int status;
+
+    /* We need to prevent flash accesses during erase operation */
+    core_util_critical_section_enter();
+    status = FLASH_Erase(&obj->flash_config, address, obj->flash_config.PFlashSectorSize, kFLASH_ApiEraseKey);
+
+    if (status == kStatus_Success) {
+        status = FLASH_VerifyErase(&obj->flash_config, address, obj->flash_config.PFlashSectorSize, kFLASH_MarginValueNormal);
+    }
+    core_util_critical_section_exit();
+
+    if (status == kStatus_Success) {
+        return 0;
+    } else {
+        return -1;
+    }
+}
+
+int32_t flash_program_page(flash_t *obj, uint32_t address, const uint8_t *data, uint32_t size)
+{
+    int status;
+
+    /* We need to prevent flash accesses during program operation */
+    core_util_critical_section_enter();
+    status = FLASH_Program(&obj->flash_config, address, (uint32_t *)data, size);
+
+    if (status == kStatus_Success) {
+        // Must use kFlashMargin_User, or kFlashMargin_Factory for verify program
+        status = FLASH_VerifyProgram(&obj->flash_config, address, size,
+                              (uint32_t *)data, kFLASH_MarginValueUser,
+                              NULL, NULL);
+    }
+    core_util_critical_section_exit();
+
+    return status;
+
+}
+
+uint32_t flash_get_sector_size(const flash_t *obj, uint32_t address)
+{
+    uint32_t sectorsize = MBED_FLASH_INVALID_SIZE;
+    uint32_t devicesize = 0;
+    uint32_t startaddr = 0;
+
+    FLASH_GetProperty((flash_config_t *)&obj->flash_config, kFLASH_PropertyPflashBlockBaseAddr, &startaddr);
+    FLASH_GetProperty((flash_config_t *)&obj->flash_config, kFLASH_PropertyPflashTotalSize, &devicesize);
+
+    if ((address >= startaddr) && (address < (startaddr + devicesize))) {
+        FLASH_GetProperty((flash_config_t *)&obj->flash_config, kFLASH_PropertyPflashSectorSize, &sectorsize);
+    }
+
+    return sectorsize;
+}
+
+uint32_t flash_get_page_size(const flash_t *obj)
+{
+    return FSL_FEATURE_FLASH_PFLASH_BLOCK_WRITE_UNIT_SIZE;
+}
+
+uint32_t flash_get_start_address(const flash_t *obj)
+{
+    uint32_t startaddr = 0;
+
+    FLASH_GetProperty((flash_config_t *)&obj->flash_config, kFLASH_PropertyPflashBlockBaseAddr, &startaddr);
+
+    return startaddr;
+}
+
+uint32_t flash_get_size(const flash_t *obj)
+{
+    uint32_t devicesize = 0;
+
+    FLASH_GetProperty((flash_config_t *)&obj->flash_config, kFLASH_PropertyPflashTotalSize, &devicesize);
+
+    return devicesize;
+}
+
+uint8_t flash_get_erase_value(const flash_t *obj)
+{
+    (void)obj;
+
+    return 0xFF;
+}
+
+#endif