96 lines
3.9 KiB
C
96 lines
3.9 KiB
C
/***************************************************************************
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* Copyright (C) 2018-2019 by Andreas Bolsch *
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* andreas.bolsch@mni.thm.de *
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* *
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* Copyright (C) 2012 by George Harris *
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* george@luminairecoffee.com *
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* *
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* Copyright (C) 2010 by Antonio Borneo *
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* borneo.antonio@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program. If not, see <http://www.gnu.org/licenses/>. *
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***************************************************************************/
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#ifndef OPENOCD_FLASH_NOR_SPI_H
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#define OPENOCD_FLASH_NOR_SPI_H
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#ifndef __ASSEMBLER__
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/* data structure to maintain flash ids from different vendors */
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struct flash_device {
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const char *name;
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uint8_t read_cmd;
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uint8_t qread_cmd;
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uint8_t pprog_cmd;
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uint8_t erase_cmd;
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uint8_t chip_erase_cmd;
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uint32_t device_id;
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uint32_t pagesize;
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uint32_t sectorsize;
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uint32_t size_in_bytes;
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};
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#define FLASH_ID(n, re, qr, pp, es, ces, id, psize, ssize, size) \
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{ \
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.name = n, \
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.read_cmd = re, \
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.qread_cmd = qr, \
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.pprog_cmd = pp, \
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.erase_cmd = es, \
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.chip_erase_cmd = ces, \
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.device_id = id, \
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.pagesize = psize, \
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.sectorsize = ssize, \
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.size_in_bytes = size, \
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}
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#define FRAM_ID(n, re, qr, pp, id, size) \
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{ \
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.name = n, \
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.read_cmd = re, \
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.qread_cmd = qr, \
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.pprog_cmd = pp, \
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.erase_cmd = 0x00, \
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.chip_erase_cmd = 0x00, \
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.device_id = id, \
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.pagesize = 0, \
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.sectorsize = 0, \
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.size_in_bytes = size, \
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}
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extern const struct flash_device flash_devices[];
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#endif
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/* fields in SPI flash status register */
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#define SPIFLASH_BSY 0
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#define SPIFLASH_BSY_BIT (1 << SPIFLASH_BSY) /* WIP Bit of SPI SR */
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#define SPIFLASH_WE 1
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#define SPIFLASH_WE_BIT (1 << SPIFLASH_WE) /* WEL Bit of SPI SR */
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/* SPI Flash Commands */
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#define SPIFLASH_READ_ID 0x9F /* Read Flash Identification */
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#define SPIFLASH_READ_MID 0xAF /* Read Flash Identification, multi-io */
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#define SPIFLASH_READ_STATUS 0x05 /* Read Status Register */
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#define SPIFLASH_WRITE_ENABLE 0x06 /* Write Enable */
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#define SPIFLASH_PAGE_PROGRAM 0x02 /* Page Program */
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#define SPIFLASH_FAST_READ 0x0B /* Fast Read */
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#define SPIFLASH_READ 0x03 /* Normal Read */
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#define SPIFLASH_MASS_ERASE 0xC7 /* Mass Erase */
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#define SPIFLASH_READ_SFDP 0x5A /* Read Serial Flash Discoverable Parameters */
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#define SPIFLASH_DEF_PAGESIZE 256 /* default for non-page-oriented devices (FRAMs) */
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#endif /* OPENOCD_FLASH_NOR_SPI_H */
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