src/flash/nor/sfdp.h (OpenOCD)

/* SPDX-License-Identifier: GPL-2.0-or-later */ /*************************************************************************** * Copyright (C) 2019 by Andreas Bolsch <andreas.bolsch@mni.thm.de * ***************************************************************************/ #ifndef OPENOCD_FLASH_NOR_SFDP_H #define OPENOCD_FLASH_NOR_SFDP_H #define SFDP_MAGIC 0x50444653 /* per JESD216D 'addr' is *byte* based but must be word aligned, * 'buffer' is word based, word aligned and always little-endian encoded, * in the flash, 'addr_len' is 3 or 4, 'dummy' ***usually*** 8 * * the actual number of dummy clocks should be worked out by this function * dynamically, i.e. by scanning the first few bytes for the SFDP signature * * buffer contents is supposed to be returned in ***host*** endianness */ typedef int (*read_sfdp_block_t)(struct flash_bank *bank, uint32_t addr, unsigned int words, uint32_t *buffer); extern int spi_sfdp(struct flash_bank *bank, struct flash_device *dev, read_sfdp_block_t read_sfdp_block); #endif /* OPENOCD_FLASH_NOR_SFDP_H */