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| author | David Anders <dave123_aml@yahoo.com> | 2006-10-19 19:33:19 +0300 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-10-21 16:43:53 +0100 |
| commit | a86aaa6ddf32b0401e64e74174042866e0fb3e20 (patch) | |
| tree | e1f11950cce73d371a189fcf2687b35923d40e3e /drivers/mtd/chips | |
| parent | d29ebdbee4c196adddf9f412e6ea1f211656744f (diff) | |
| download | kernel_samsung_smdk4412-a86aaa6ddf32b0401e64e74174042866e0fb3e20.zip kernel_samsung_smdk4412-a86aaa6ddf32b0401e64e74174042866e0fb3e20.tar.gz kernel_samsung_smdk4412-a86aaa6ddf32b0401e64e74174042866e0fb3e20.tar.bz2 | |
[MTD] NOR: leave Intel chips in read-array mode on suspend
During some testing with several samsung s3c24xx based
devices it was discovered that often the
cfi_cmdset_0001.c would not leave the chip in
read-array mode on suspend. this is an issue if the
same flash chip is used for the bootloader that needs
to be read on resume.
Signed-off-by: David Anders <danders@amltd.com>
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'drivers/mtd/chips')
| -rw-r--r-- | drivers/mtd/chips/cfi_cmdset_0001.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c index 7ea49a0..e249736 100644 --- a/drivers/mtd/chips/cfi_cmdset_0001.c +++ b/drivers/mtd/chips/cfi_cmdset_0001.c @@ -2224,6 +2224,8 @@ static int cfi_intelext_suspend(struct mtd_info *mtd) case FL_CFI_QUERY: case FL_JEDEC_QUERY: if (chip->oldstate == FL_READY) { + /* place the chip in a known state before suspend */ + map_write(map, CMD(0xFF), cfi->chips[i].start); chip->oldstate = chip->state; chip->state = FL_PM_SUSPENDED; /* No need to wake_up() on this state change - |