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https://github.com/AsahiLinux/u-boot
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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>
84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2010
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* Vipin Kumar, ST Micoelectronics, vipin.kumar@st.com.
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*/
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#ifndef __FSMC_NAND_H__
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#define __FSMC_NAND_H__
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#include <linux/mtd/rawnand.h>
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struct fsmc_regs {
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u32 ctrl; /* 0x00 */
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u8 reserved_1[0x40 - 0x04];
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u32 pc; /* 0x40 */
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u32 sts; /* 0x44 */
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u32 comm; /* 0x48 */
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u32 attrib; /* 0x4c */
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u32 ioata; /* 0x50 */
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u32 ecc1; /* 0x54 */
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u32 ecc2; /* 0x58 */
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u32 ecc3; /* 0x5c */
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u8 reserved_2[0xfe0 - 0x60];
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u32 peripid0; /* 0xfe0 */
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u32 peripid1; /* 0xfe4 */
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u32 peripid2; /* 0xfe8 */
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u32 peripid3; /* 0xfec */
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u32 pcellid0; /* 0xff0 */
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u32 pcellid1; /* 0xff4 */
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u32 pcellid2; /* 0xff8 */
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u32 pcellid3; /* 0xffc */
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};
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/* ctrl register definitions */
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#define FSMC_WP (1 << 7)
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/* pc register definitions */
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#define FSMC_RESET (1 << 0)
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#define FSMC_WAITON (1 << 1)
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#define FSMC_ENABLE (1 << 2)
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#define FSMC_DEVTYPE_NAND (1 << 3)
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#define FSMC_DEVWID_8 (0 << 4)
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#define FSMC_DEVWID_16 (1 << 4)
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#define FSMC_ECCEN (1 << 6)
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#define FSMC_ECCPLEN_512 (0 << 7)
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#define FSMC_ECCPLEN_256 (1 << 7)
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#define FSMC_TCLR_1 (1 << 9)
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#define FSMC_TAR_1 (1 << 13)
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/* sts register definitions */
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#define FSMC_CODE_RDY (1 << 15)
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/* comm register definitions */
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#define FSMC_TSET_0 (0 << 0)
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#define FSMC_TWAIT_6 (6 << 8)
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#define FSMC_THOLD_4 (4 << 16)
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#define FSMC_THIZ_1 (1 << 24)
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/* peripid2 register definitions */
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#define FSMC_REVISION_MSK (0xf)
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#define FSMC_REVISION_SHFT (0x4)
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#define FSMC_VER8 0x8
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/*
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* There are 13 bytes of ecc for every 512 byte block and it has to be read
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* consecutively and immediately after the 512 byte data block for hardware to
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* generate the error bit offsets
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* Managing the ecc bytes in the following way is easier. This way is similar to
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* oobfree structure maintained already in u-boot nand driver
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*/
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#define FSMC_MAX_ECCPLACE_ENTRIES 32
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struct fsmc_nand_eccplace {
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u32 offset;
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u32 length;
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};
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struct fsmc_eccplace {
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struct fsmc_nand_eccplace eccplace[FSMC_MAX_ECCPLACE_ENTRIES];
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};
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extern int fsmc_nand_init(struct nand_chip *nand);
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#endif
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