Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 882905c7 authored by Roman Zippel's avatar Roman Zippel Committed by Linus Torvalds
Browse files

[PATCH] m68k: wd33c93: extra delay 



The wd33c93 needs a small delay before a new command can be started.

Signed-off-by: default avatarRoman Zippel <zippel@linux-m68k.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 5fa28ea4

drivers/scsi/wd33c93.c

+4 −0
Original line number Diff line number Diff line
@@ -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",