diff options
Diffstat (limited to 'include/linux/mtd/docg4.h')
| -rw-r--r-- | include/linux/mtd/docg4.h | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/include/linux/mtd/docg4.h b/include/linux/mtd/docg4.h deleted file mode 100644 index 741fc0db46..0000000000 --- a/include/linux/mtd/docg4.h +++ /dev/null @@ -1,132 +0,0 @@ -/* - * Copyright (C) 2013 Mike Dunn <mikedunn@newsguy.com> - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -#ifndef __DOCG4_H__ -#define __DOCG4_H__ - -#include <common.h> -#include <linux/mtd/nand.h> - -extern int docg4_nand_init(struct mtd_info *mtd, - struct nand_chip *nand, int devnum); - -/* SPL-related definitions */ -#define DOCG4_IPL_LOAD_BLOCK_COUNT 2 /* number of blocks that IPL loads */ -#define DOCG4_BLOCK_CAPACITY_SPL 0x10000 /* reliable mode; redundant pages */ - -#define DOC_IOSPACE_DATA 0x0800 - -/* register offsets */ -#define DOC_CHIPID 0x1000 -#define DOC_DEVICESELECT 0x100a -#define DOC_ASICMODE 0x100c -#define DOC_DATAEND 0x101e -#define DOC_NOP 0x103e - -#define DOC_FLASHSEQUENCE 0x1032 -#define DOC_FLASHCOMMAND 0x1034 -#define DOC_FLASHADDRESS 0x1036 -#define DOC_FLASHCONTROL 0x1038 -#define DOC_ECCCONF0 0x1040 -#define DOC_ECCCONF1 0x1042 -#define DOC_HAMMINGPARITY 0x1046 -#define DOC_BCH_SYNDROM(idx) (0x1048 + idx) - -#define DOC_ASICMODECONFIRM 0x1072 -#define DOC_CHIPID_INV 0x1074 -#define DOC_POWERMODE 0x107c - -#define DOCG4_MYSTERY_REG 0x1050 - -/* apparently used only to write oob bytes 6 and 7 */ -#define DOCG4_OOB_6_7 0x1052 - -/* DOC_FLASHSEQUENCE register commands */ -#define DOC_SEQ_RESET 0x00 -#define DOCG4_SEQ_PAGE_READ 0x03 -#define DOCG4_SEQ_FLUSH 0x29 -#define DOCG4_SEQ_PAGEWRITE 0x16 -#define DOCG4_SEQ_PAGEPROG 0x1e -#define DOCG4_SEQ_BLOCKERASE 0x24 - -/* DOC_FLASHCOMMAND register commands */ -#define DOCG4_CMD_PAGE_READ 0x00 -#define DOC_CMD_ERASECYCLE2 0xd0 -#define DOCG4_CMD_FLUSH 0x70 -#define DOCG4_CMD_READ2 0x30 -#define DOC_CMD_PROG_BLOCK_ADDR 0x60 -#define DOCG4_CMD_PAGEWRITE 0x80 -#define DOC_CMD_PROG_CYCLE2 0x10 -#define DOC_CMD_RESET 0xff - -/* DOC_POWERMODE register bits */ -#define DOC_POWERDOWN_READY 0x80 - -/* DOC_FLASHCONTROL register bits */ -#define DOC_CTRL_CE 0x10 -#define DOC_CTRL_UNKNOWN 0x40 -#define DOC_CTRL_FLASHREADY 0x01 - -/* DOC_ECCCONF0 register bits */ -#define DOC_ECCCONF0_READ_MODE 0x8000 -#define DOC_ECCCONF0_UNKNOWN 0x2000 -#define DOC_ECCCONF0_ECC_ENABLE 0x1000 -#define DOC_ECCCONF0_DATA_BYTES_MASK 0x07ff - -/* DOC_ECCCONF1 register bits */ -#define DOC_ECCCONF1_BCH_SYNDROM_ERR 0x80 -#define DOC_ECCCONF1_ECC_ENABLE 0x07 -#define DOC_ECCCONF1_PAGE_IS_WRITTEN 0x20 - -/* DOC_ASICMODE register bits */ -#define DOC_ASICMODE_RESET 0x00 -#define DOC_ASICMODE_NORMAL 0x01 -#define DOC_ASICMODE_POWERDOWN 0x02 -#define DOC_ASICMODE_MDWREN 0x04 -#define DOC_ASICMODE_BDETCT_RESET 0x08 -#define DOC_ASICMODE_RSTIN_RESET 0x10 -#define DOC_ASICMODE_RAM_WE 0x20 - -/* good status values read after read/write/erase operations */ -#define DOCG4_PROGSTATUS_GOOD 0x51 -#define DOCG4_PROGSTATUS_GOOD_2 0xe0 - -/* - * On read operations (page and oob-only), the first byte read from I/O reg is a - * status. On error, it reads 0x73; otherwise, it reads either 0x71 (first read - * after reset only) or 0x51, so bit 1 is presumed to be an error indicator. - */ -#define DOCG4_READ_ERROR 0x02 /* bit 1 indicates read error */ - -/* anatomy of the device */ -#define DOCG4_CHIP_SIZE 0x8000000 -#define DOCG4_PAGE_SIZE 0x200 -#define DOCG4_PAGES_PER_BLOCK 0x200 -#define DOCG4_BLOCK_SIZE (DOCG4_PAGES_PER_BLOCK * DOCG4_PAGE_SIZE) -#define DOCG4_NUMBLOCKS (DOCG4_CHIP_SIZE / DOCG4_BLOCK_SIZE) -#define DOCG4_OOB_SIZE 0x10 -#define DOCG4_CHIP_SHIFT 27 /* log_2(DOCG4_CHIP_SIZE) */ -#define DOCG4_PAGE_SHIFT 9 /* log_2(DOCG4_PAGE_SIZE) */ -#define DOCG4_ERASE_SHIFT 18 /* log_2(DOCG4_BLOCK_SIZE) */ - -/* all but the last byte is included in ecc calculation */ -#define DOCG4_BCH_SIZE (DOCG4_PAGE_SIZE + DOCG4_OOB_SIZE - 1) - -#define DOCG4_USERDATA_LEN 520 /* 512 byte page plus 8 oob avail to user */ - -/* expected values from the ID registers */ -#define DOCG4_IDREG1_VALUE 0x0400 -#define DOCG4_IDREG2_VALUE 0xfbff - -/* primitive polynomial used to build the Galois field used by hw ecc gen */ -#define DOCG4_PRIMITIVE_POLY 0x4443 - -#define DOCG4_M 14 /* Galois field is of order 2^14 */ -#define DOCG4_T 4 /* BCH alg corrects up to 4 bit errors */ - -#define DOCG4_FACTORY_BBT_PAGE 16 /* page where read-only factory bbt lives */ - -#endif /* __DOCG4_H__ */ |
