kernel/linux.git/include/linux/mtd, branch v2.6.28

[MTD] [NOR] Fix cfi_send_gen_cmd handling of x16 devices in x8 mode (v4)

2008-11-05T13:40:25+00:00

For "unlock" cycles to 16bit devices in 8bit compatibility mode we need to use the byte addresses 0xaaa and 0x555. These effectively match the word address 0x555 and 0x2aa, except the latter has its low bit set. Most chips don't care about the value of the 'A-1' pin in x8 mode, but some -- like the ST M29W320D -- do. So we need to be careful to set it where appropriate. cfi_send_gen_cmd is only ever passed addresses where the low byte is 0x00, 0x55 or 0xaa. Of those, only addresses ending 0xaa are affected by this patch, by masking in the extra low bit when the device is known to be in compatibility mode. [dwmw2: Do it only when (cmd_ofs & 0xff) == 0xaa] v4: Fix stupid typo in cfi_build_cmd_addr that failed to compile I'm writing this patch way to late at night. v3: Bring all of the work back into cfi_build_cmd_addr including calling of map_bankwidth(map) and cfi_interleave(cfi) So every caller doesn't need to. v2: Only modified the address if we our device_type is larger than our bus width. Cc: stable@kernel.org Signed-off-by: Eric W. Biederman Signed-off-by: David Woodhouse

Merge git://git.infradead.org/mtd-2.6

2008-10-20T16:03:12+00:00

* git://git.infradead.org/mtd-2.6: (69 commits) Revert "[MTD] m25p80.c code cleanup" [MTD] [NAND] GPIO driver depends on ARM... for now. [MTD] [NAND] sh_flctl: fix compile error [MTD] [NOR] AT49BV6416 has swapped erase regions [MTD] [NAND] GPIO NAND flash driver [MTD] cmdlineparts documentation change - explain where mtd-id comes from [MTD] cfi_cmdset_0002.c: Add Macronix CFI V1.0 TopBottom detection [MTD] [NAND] Fix compilation warnings in drivers/mtd/nand/cs553x_nand.c [JFFS2] Write buffer offset adjustment for NOR-ECC (Sibley) flash [MTD] mtdoops: Fix a bug where block may not be erased [MTD] mtdoops: Add a magic number to logged kernel oops [MTD] mtdoops: Fix an off by one error [JFFS2] Correct parameter names of jffs2_compress() in comments [MTD] [NAND] sh_flctl: add support for Renesas SuperH FLCTL [MTD] [NAND] Bug on atmel_nand HW ECC : OOB info not correctly written [MTD] [MAPS] Remove unused variable after ROM API cleanup. [MTD] m25p80.c extended jedec support (v2) [MTD] remove unused mtd parameter in of_mtd_parse_partitions() [MTD] [NAND] remove dead Kconfig associated with !CONFIG_PPC_MERGE [MTD] [NAND] driver extension to support NAND on TQM85xx modules ...

[MTD] [NAND] GPIO NAND flash driver

2008-10-18T11:48:42+00:00

The patch adds support for NAND flashes connected to GPIOs. Signed-off-by: Russell King Signed-off-by: Mike Rapoport Signed-off-by: David Woodhouse

[MTD] [NAND] sh_flctl: add support for Renesas SuperH FLCTL

2008-10-14T12:33:05+00:00

Several Renesas SuperH CPU has FLCTL. The FLCTL support NAND Flash. This driver support SH7723. Signed-off-by: Yoshihiro Shimoda Acked-by: Paul Mundt Signed-off-by: David Woodhouse

[MTD] remove unused mtd parameter in of_mtd_parse_partitions()

2008-10-13T14:01:42+00:00

Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: David Woodhouse

Support 'discard sectors' operation in translation layer support core

2008-10-09T06:56:01+00:00

Signed-off-by: David Woodhouse Signed-off-by: Jens Axboe

[MTD] [NAND] Fix missing kernel-doc

2008-08-20T21:35:40+00:00

[Reported by Randy Dunlap] Signed-off-by: Alexey Korolev Signed-off-by: David Woodhouse

[MTD] Define and use MTD_FAIL_ADDR_UNKNOWN instead of 0xffffffff

2008-08-12T10:02:15+00:00

Signed-off-by: Adrian Hunter Signed-off-by: David Woodhouse

[MTD] [NOR] Rename and export new cfi_qry_*() functions

2008-08-07T10:55:07+00:00

They need to be exported, so let's give them less generic-sounding names while we're at it. Original export patch, along with the suggestion about the nomenclature, from Stephen Rothwell. Signed-off-by: David Woodhouse

[MTD] [NOR] cfi_cmdset_0001: Timeouts for erase, write and unlock operations

2008-08-06T08:44:54+00:00

Timeouts are currently given by the typical operation time times 8. It works in the general well-behaved case but not when an erase block is failing. For erase operations, it seems that a failing erase block will keep the device state machine in erasing state until the vendor specified maximum timeout period has passed. By this time the driver would have long since timed out, left erasing state and attempted further operations which all fail. This patch implements timeouts using values from the CFI Query structure when available. The patch also sets a longer timeout for locking operations. The current value used for locking/unlocking given by 1000000/HZ microseconds is too short for devices like J3 and J5 Strataflash which have a typical clear lock-bits time of 0.5 seconds. Signed-off-by: Anders Grafström Signed-off-by: David Woodhouse