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https://github.com/smaeul/u-boot.git
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
208 lines
5.5 KiB
C
208 lines
5.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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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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*/
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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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#if 0
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#include <linux/mutex.h>
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#endif
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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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#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u32 *)(((unsigned long)adr)+((reg)<<2))))
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#define WriteDOC_(d, adr, reg) do{ *(volatile __u32 *)(((unsigned long)adr)+((reg)<<2)) = (__u32)d; wmb();} while(0)
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#define DOC_IOREMAP_LEN 0x8000
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#elif defined(__ppc__)
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#define ReadDOC_(adr, reg) ((unsigned char)(*(volatile __u16 *)(((unsigned long)adr)+((reg)<<1))))
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#define WriteDOC_(d, adr, reg) do{ *(volatile __u16 *)(((unsigned long)adr)+((reg)<<1)) = (__u16)d; wmb();} while(0)
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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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/* XXX U-BOOT XXX */
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#if 0
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struct mutex lock;
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#endif
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};
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int doc_decode_ecc(unsigned char sector[512], unsigned char ecc1[6]);
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/* XXX U-BOOT XXX */
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#if 1
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/*
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* NAND Flash Manufacturer ID Codes
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*/
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#define NAND_MFR_TOSHIBA 0x98
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#define NAND_MFR_SAMSUNG 0xec
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#endif
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#endif /* __MTD_DOC2000_H__ */
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