From: zippel@linux-m68k.org
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 08/11] extra delay
Date: Thu, 25 May 2006 02:27:50 +0200 [thread overview]
Message-ID: <20060525003422.557653000@linux-m68k.org> (raw)
In-Reply-To: 20060525002742.723577000@linux-m68k.org
The wd33c93 needs a small delay before a new command can be started.
Signed-off-by: Roman Zippel <zippel@linux-m68k.org>
---
drivers/scsi/wd33c93.c | 4 ++++
1 file changed, 4 insertions(+)
Index: linux-2.6-mm/drivers/scsi/wd33c93.c
===================================================================
--- linux-2.6-mm.orig/drivers/scsi/wd33c93.c
+++ linux-2.6-mm/drivers/scsi/wd33c93.c
@@ -939,6 +939,7 @@ wd33c93_intr(struct Scsi_Host *instance)
DB(DB_INTR, printk("%02x", cmd->SCp.Status))
if (hostdata->level2 >= L2_BASIC) {
sr = read_wd33c93(regs, WD_SCSI_STATUS); /* clear interrupt */
+ udelay(7);
hostdata->state = S_RUNNING_LEVEL2;
write_wd33c93(regs, WD_COMMAND_PHASE, 0x50);
write_wd33c93_cmd(regs, WD_CMD_SEL_ATN_XFER);
@@ -955,6 +956,7 @@ wd33c93_intr(struct Scsi_Host *instance)
msg = read_1_byte(regs);
sr = read_wd33c93(regs, WD_SCSI_STATUS); /* clear interrupt */
+ udelay(7);
hostdata->incoming_msg[hostdata->incoming_ptr] = msg;
if (hostdata->incoming_msg[0] == EXTENDED_MESSAGE)
@@ -1358,6 +1360,7 @@ wd33c93_intr(struct Scsi_Host *instance)
} else {
/* Verify this is a change to MSG_IN and read the message */
sr = read_wd33c93(regs, WD_SCSI_STATUS);
+ udelay(7);
if (sr == (CSR_ABORT | PHS_MESS_IN) ||
sr == (CSR_UNEXP | PHS_MESS_IN) ||
sr == (CSR_SRV_REQ | PHS_MESS_IN)) {
@@ -1374,6 +1377,7 @@ wd33c93_intr(struct Scsi_Host *instance)
asr);
}
sr = read_wd33c93(regs, WD_SCSI_STATUS);
+ udelay(7);
if (sr != CSR_MSGIN)
printk
("wd33c93: Not paused with ACK on RESEL (%02x)\n",
--
next prev parent reply other threads:[~2006-05-25 1:27 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-25 0:27 [PATCH 00/11] various m68k patches zippel
2006-05-25 0:27 ` [PATCH 01/11] completely initialize hw_regs_t in ide_setup_ports zippel
2006-05-25 0:27 ` [PATCH 02/11] atyfb_base compile fix for CONFIG_PCI=n zippel
2006-05-25 1:33 ` Andrew Morton
2006-05-25 4:07 ` Greg KH
2006-05-25 4:28 ` Andrew Morton
2006-05-30 12:21 ` Roman Zippel
2006-05-25 0:27 ` [PATCH 03/11] cleanup unistd.h zippel
2006-05-25 0:27 ` [PATCH 04/11] Remove some unused definitions in zorro.h zippel
2006-05-25 0:27 ` [PATCH 05/11] use c99 initializer zippel
2006-05-25 0:27 ` [PATCH 06/11] print correct stack trace zippel
2006-05-25 0:27 ` [PATCH 07/11] restore amikbd compatibility with 2.4 zippel
2006-05-25 1:36 ` Andrew Morton
2006-05-25 1:50 ` Roman Zippel
2006-05-25 0:27 ` zippel [this message]
2006-05-25 0:27 ` [PATCH 09/11] use proper defines for zone initialization zippel
2006-05-25 0:27 ` [PATCH 10/11] adjust to changed HARDIRQ_MASK zippel
2006-05-25 0:27 ` [PATCH 11/11] m68k mac VIA2 fixes and cleanups zippel
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