| /* |
| * This file is part of the flashrom project. |
| * |
| * Copyright (C) 2014 Boris Baykov |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /* |
| * JEDEC flash chips instructions for 4-bytes addressing |
| * SPI chip driver functions for 4-bytes addressing |
| */ |
| |
| #ifndef __SPI_4BA_H__ |
| #define __SPI_4BA_H__ 1 |
| |
| /* Enter 4-byte Address Mode */ |
| #define JEDEC_ENTER_4_BYTE_ADDR_MODE 0xB7 |
| #define JEDEC_ENTER_4_BYTE_ADDR_MODE_OUTSIZE 0x01 |
| #define JEDEC_ENTER_4_BYTE_ADDR_MODE_INSIZE 0x00 |
| |
| /* Exit 4-byte Address Mode */ |
| #define JEDEC_EXIT_4_BYTE_ADDR_MODE 0xE9 |
| #define JEDEC_EXIT_4_BYTE_ADDR_MODE_OUTSIZE 0x01 |
| #define JEDEC_EXIT_4_BYTE_ADDR_MODE_INSIZE 0x00 |
| |
| /* enter 4-bytes addressing mode */ |
| int spi_enter_4ba_b7(struct flashctx *flash); |
| int spi_enter_4ba_b7_we(struct flashctx *flash); |
| |
| /* read/write flash bytes in 4-bytes addressing mode */ |
| int spi_byte_program_4ba(struct flashctx *flash, unsigned int addr, uint8_t databyte); |
| int spi_nbyte_program_4ba(struct flashctx *flash, unsigned int addr, const uint8_t *bytes, unsigned int len); |
| int spi_nbyte_read_4ba(struct flashctx *flash, unsigned int addr, uint8_t *bytes, unsigned int len); |
| |
| /* erase flash bytes in 4-bytes addressing mode */ |
| int spi_block_erase_20_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen); |
| int spi_block_erase_52_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen); |
| int spi_block_erase_d8_4ba(struct flashctx *flash, unsigned int addr, unsigned int blocklen); |
| |
| |
| #endif /* __SPI_4BA_H__ */ |