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| author | Mikulas Patocka <mpatocka@redhat.com> | 2008-07-15 17:16:38 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-15 14:30:56 -0700 |
| commit | 56d387ec210049be2fdb0fe26ba6d6de1b3c1b15 (patch) | |
| tree | 7765729d4d4b51007de544af6abb5f7841f515cb /drivers/scsi/a100u2w.c | |
| parent | 987ff954cda2a206f5e694f267b0ccad869c257c (diff) | |
| download | op-kernel-dev-56d387ec210049be2fdb0fe26ba6d6de1b3c1b15.zip op-kernel-dev-56d387ec210049be2fdb0fe26ba6d6de1b3c1b15.tar.gz | |
Add udelay to A100U2W SCSI driver
udelay is required on Sun Ultra 5.
I don't know any reason or explanation for this, it was found purely
experimentally.
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/scsi/a100u2w.c')
| -rw-r--r-- | drivers/scsi/a100u2w.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/scsi/a100u2w.c b/drivers/scsi/a100u2w.c index 1dd0fcf..1e8bdd4 100644 --- a/drivers/scsi/a100u2w.c +++ b/drivers/scsi/a100u2w.c @@ -401,6 +401,7 @@ static u8 orc_load_firmware(struct orc_host * host) /* Copy the code from the BIOS to the SRAM */ + udelay(500); /* Required on Sun Ultra 5 ... 350 -> failures */ bios_addr = (u16) le32_to_cpu(data32); /* FW code locate at BIOS address + ? */ for (i = 0, data32_ptr = (u8 *) & data32; /* Download the code */ i < 0x1000; /* Firmware code size = 4K */ |
