mirror of
https://github.com/brain-hackers/u-boot-brain
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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>
104 lines
2.4 KiB
C
104 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright © 2000 Red Hat UK Limited
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* Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org>
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*
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*/
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#ifndef __MTD_FLASHCHIP_H__
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#define __MTD_FLASHCHIP_H__
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#ifndef __UBOOT__
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/* For spinlocks. sched.h includes spinlock.h from whichever directory it
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* happens to be in - so we don't have to care whether we're on 2.2, which
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* has asm/spinlock.h, or 2.4, which has linux/spinlock.h
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*/
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#include <linux/sched.h>
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#include <linux/mutex.h>
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#endif
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typedef enum {
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FL_READY,
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FL_STATUS,
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FL_CFI_QUERY,
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FL_JEDEC_QUERY,
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FL_ERASING,
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FL_ERASE_SUSPENDING,
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FL_ERASE_SUSPENDED,
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FL_WRITING,
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FL_WRITING_TO_BUFFER,
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FL_OTP_WRITE,
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FL_WRITE_SUSPENDING,
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FL_WRITE_SUSPENDED,
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FL_PM_SUSPENDED,
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FL_SYNCING,
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FL_UNLOADING,
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FL_LOCKING,
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FL_UNLOCKING,
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FL_POINT,
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FL_XIP_WHILE_ERASING,
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FL_XIP_WHILE_WRITING,
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FL_SHUTDOWN,
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/* These 2 come from nand_state_t, which has been unified here */
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FL_READING,
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FL_CACHEDPRG,
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/* These 4 come from onenand_state_t, which has been unified here */
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FL_RESETING,
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FL_OTPING,
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FL_PREPARING_ERASE,
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FL_VERIFYING_ERASE,
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FL_UNKNOWN
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} flstate_t;
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/* NOTE: confusingly, this can be used to refer to more than one chip at a time,
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if they're interleaved. This can even refer to individual partitions on
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the same physical chip when present. */
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struct flchip {
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unsigned long start; /* Offset within the map */
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// unsigned long len;
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/* We omit len for now, because when we group them together
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we insist that they're all of the same size, and the chip size
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is held in the next level up. If we get more versatile later,
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it'll make it a damn sight harder to find which chip we want from
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a given offset, and we'll want to add the per-chip length field
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back in.
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*/
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int ref_point_counter;
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flstate_t state;
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flstate_t oldstate;
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unsigned int write_suspended:1;
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unsigned int erase_suspended:1;
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unsigned long in_progress_block_addr;
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struct mutex mutex;
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#ifndef __UBOOT__
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wait_queue_head_t wq; /* Wait on here when we're waiting for the chip
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to be ready */
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#endif
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int word_write_time;
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int buffer_write_time;
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int erase_time;
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int word_write_time_max;
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int buffer_write_time_max;
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int erase_time_max;
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void *priv;
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};
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/* This is used to handle contention on write/erase operations
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between partitions of the same physical chip. */
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struct flchip_shared {
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struct mutex lock;
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struct flchip *writing;
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struct flchip *erasing;
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};
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#endif /* __MTD_FLASHCHIP_H__ */
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