forked from luck/tmp_suning_uos_patched
fd534e9b5f
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 50 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190523091649.499889647@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
207 lines
5.4 KiB
C
207 lines
5.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Linux driver for Disk-On-Chip devices
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*
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* Copyright © 1999 Machine Vision Holdings, Inc.
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* Copyright © 1999-2010 David Woodhouse <dwmw2@infradead.org>
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* Copyright © 2002-2003 Greg Ungerer <gerg@snapgear.com>
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* Copyright © 2002-2003 SnapGear Inc
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*/
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#ifndef __MTD_DOC2000_H__
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#define __MTD_DOC2000_H__
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#include <linux/mtd/mtd.h>
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#include <linux/mutex.h>
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#define DoC_Sig1 0
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#define DoC_Sig2 1
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#define DoC_ChipID 0x1000
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#define DoC_DOCStatus 0x1001
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#define DoC_DOCControl 0x1002
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#define DoC_FloorSelect 0x1003
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#define DoC_CDSNControl 0x1004
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#define DoC_CDSNDeviceSelect 0x1005
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#define DoC_ECCConf 0x1006
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#define DoC_2k_ECCStatus 0x1007
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#define DoC_CDSNSlowIO 0x100d
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#define DoC_ECCSyndrome0 0x1010
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#define DoC_ECCSyndrome1 0x1011
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#define DoC_ECCSyndrome2 0x1012
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#define DoC_ECCSyndrome3 0x1013
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#define DoC_ECCSyndrome4 0x1014
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#define DoC_ECCSyndrome5 0x1015
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#define DoC_AliasResolution 0x101b
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#define DoC_ConfigInput 0x101c
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#define DoC_ReadPipeInit 0x101d
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#define DoC_WritePipeTerm 0x101e
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#define DoC_LastDataRead 0x101f
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#define DoC_NOP 0x1020
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#define DoC_Mil_CDSN_IO 0x0800
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#define DoC_2k_CDSN_IO 0x1800
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#define DoC_Mplus_NOP 0x1002
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#define DoC_Mplus_AliasResolution 0x1004
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#define DoC_Mplus_DOCControl 0x1006
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#define DoC_Mplus_AccessStatus 0x1008
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#define DoC_Mplus_DeviceSelect 0x1008
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#define DoC_Mplus_Configuration 0x100a
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#define DoC_Mplus_OutputControl 0x100c
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#define DoC_Mplus_FlashControl 0x1020
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#define DoC_Mplus_FlashSelect 0x1022
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#define DoC_Mplus_FlashCmd 0x1024
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#define DoC_Mplus_FlashAddress 0x1026
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#define DoC_Mplus_FlashData0 0x1028
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#define DoC_Mplus_FlashData1 0x1029
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#define DoC_Mplus_ReadPipeInit 0x102a
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#define DoC_Mplus_LastDataRead 0x102c
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#define DoC_Mplus_LastDataRead1 0x102d
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#define DoC_Mplus_WritePipeTerm 0x102e
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#define DoC_Mplus_ECCSyndrome0 0x1040
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#define DoC_Mplus_ECCSyndrome1 0x1041
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#define DoC_Mplus_ECCSyndrome2 0x1042
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#define DoC_Mplus_ECCSyndrome3 0x1043
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#define DoC_Mplus_ECCSyndrome4 0x1044
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#define DoC_Mplus_ECCSyndrome5 0x1045
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#define DoC_Mplus_ECCConf 0x1046
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#define DoC_Mplus_Toggle 0x1046
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#define DoC_Mplus_DownloadStatus 0x1074
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#define DoC_Mplus_CtrlConfirm 0x1076
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#define DoC_Mplus_Power 0x1fff
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/* How to access the device?
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* On ARM, it'll be mmap'd directly with 32-bit wide accesses.
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* On PPC, it's mmap'd and 16-bit wide.
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* Others use readb/writeb
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*/
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#if defined(__arm__)
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static inline u8 ReadDOC_(u32 __iomem *addr, unsigned long reg)
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{
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return __raw_readl(addr + reg);
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}
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static inline void WriteDOC_(u8 data, u32 __iomem *addr, unsigned long reg)
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{
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__raw_writel(data, addr + reg);
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wmb();
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}
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#define DOC_IOREMAP_LEN 0x8000
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#elif defined(__ppc__)
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static inline u8 ReadDOC_(u16 __iomem *addr, unsigned long reg)
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{
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return __raw_readw(addr + reg);
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}
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static inline void WriteDOC_(u8 data, u16 __iomem *addr, unsigned long reg)
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{
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__raw_writew(data, addr + reg);
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wmb();
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}
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#define DOC_IOREMAP_LEN 0x4000
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#else
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#define ReadDOC_(adr, reg) readb((void __iomem *)(adr) + (reg))
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#define WriteDOC_(d, adr, reg) writeb(d, (void __iomem *)(adr) + (reg))
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#define DOC_IOREMAP_LEN 0x2000
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#endif
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#if defined(__i386__) || defined(__x86_64__)
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#define USE_MEMCPY
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#endif
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/* These are provided to directly use the DoC_xxx defines */
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#define ReadDOC(adr, reg) ReadDOC_(adr,DoC_##reg)
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#define WriteDOC(d, adr, reg) WriteDOC_(d,adr,DoC_##reg)
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#define DOC_MODE_RESET 0
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#define DOC_MODE_NORMAL 1
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#define DOC_MODE_RESERVED1 2
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#define DOC_MODE_RESERVED2 3
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#define DOC_MODE_CLR_ERR 0x80
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#define DOC_MODE_RST_LAT 0x10
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#define DOC_MODE_BDECT 0x08
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#define DOC_MODE_MDWREN 0x04
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#define DOC_ChipID_Doc2k 0x20
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#define DOC_ChipID_Doc2kTSOP 0x21 /* internal number for MTD */
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#define DOC_ChipID_DocMil 0x30
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#define DOC_ChipID_DocMilPlus32 0x40
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#define DOC_ChipID_DocMilPlus16 0x41
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#define CDSN_CTRL_FR_B 0x80
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#define CDSN_CTRL_FR_B0 0x40
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#define CDSN_CTRL_FR_B1 0x80
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#define CDSN_CTRL_ECC_IO 0x20
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#define CDSN_CTRL_FLASH_IO 0x10
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#define CDSN_CTRL_WP 0x08
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#define CDSN_CTRL_ALE 0x04
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#define CDSN_CTRL_CLE 0x02
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#define CDSN_CTRL_CE 0x01
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#define DOC_ECC_RESET 0
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#define DOC_ECC_ERROR 0x80
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#define DOC_ECC_RW 0x20
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#define DOC_ECC__EN 0x08
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#define DOC_TOGGLE_BIT 0x04
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#define DOC_ECC_RESV 0x02
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#define DOC_ECC_IGNORE 0x01
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#define DOC_FLASH_CE 0x80
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#define DOC_FLASH_WP 0x40
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#define DOC_FLASH_BANK 0x02
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/* We have to also set the reserved bit 1 for enable */
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#define DOC_ECC_EN (DOC_ECC__EN | DOC_ECC_RESV)
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#define DOC_ECC_DIS (DOC_ECC_RESV)
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struct Nand {
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char floor, chip;
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unsigned long curadr;
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unsigned char curmode;
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/* Also some erase/write/pipeline info when we get that far */
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};
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#define MAX_FLOORS 4
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#define MAX_CHIPS 4
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#define MAX_FLOORS_MIL 1
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#define MAX_CHIPS_MIL 1
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#define MAX_FLOORS_MPLUS 2
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#define MAX_CHIPS_MPLUS 1
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#define ADDR_COLUMN 1
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#define ADDR_PAGE 2
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#define ADDR_COLUMN_PAGE 3
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struct DiskOnChip {
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unsigned long physadr;
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void __iomem *virtadr;
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unsigned long totlen;
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unsigned char ChipID; /* Type of DiskOnChip */
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int ioreg;
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unsigned long mfr; /* Flash IDs - only one type of flash per device */
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unsigned long id;
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int chipshift;
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char page256;
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char pageadrlen;
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char interleave; /* Internal interleaving - Millennium Plus style */
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unsigned long erasesize;
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int curfloor;
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int curchip;
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int numchips;
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struct Nand *chips;
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struct mtd_info *nextdoc;
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struct mutex lock;
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};
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int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
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#endif /* __MTD_DOC2000_H__ */
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