[src/trunk]: src/sys/dev/ic Increase delay on EEPROM access.

[tsutsui <tsutsui%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ef53753bb6c7
branches:  trunk
changeset: 486629:ef53753bb6c7
user:      tsutsui <tsutsui%NetBSD.org@localhost>
date:      Sat May 27 00:55:42 2000 +0000

description:
Increase delay on EEPROM access.
CATS sometimes cannot read MAC address correctly.

diffstat:

 sys/dev/ic/i82557.c |  26 +++++++++++++-------------
 1 files changed, 13 insertions(+), 13 deletions(-)

diffs (83 lines):

diff -r 72eb74ee19f5 -r ef53753bb6c7 sys/dev/ic/i82557.c
--- a/sys/dev/ic/i82557.c       Sat May 27 00:45:37 2000 +0000
+++ b/sys/dev/ic/i82557.c       Sat May 27 00:55:42 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: i82557.c,v 1.32 2000/05/26 19:11:24 tsutsui Exp $      */
+/*     $NetBSD: i82557.c,v 1.33 2000/05/27 00:55:42 tsutsui Exp $      */
 
 /*-
  * Copyright (c) 1997, 1998, 1999 The NetBSD Foundation, Inc.
@@ -573,9 +573,9 @@
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL,
                            reg | FXP_EEPROM_EESK);
-               DELAY(1);
+               DELAY(4);
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
-               DELAY(1);
+               DELAY(4);
        }
        /*
         * Shift in address, wait for the dummy zero following a correct
@@ -585,15 +585,15 @@
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL,
                    FXP_EEPROM_EECS | FXP_EEPROM_EESK);
-               DELAY(1);
+               DELAY(4);
                if((CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) & 
                    FXP_EEPROM_EEDO) == 0)
                        break;
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, FXP_EEPROM_EECS);
-               DELAY(1);
+               DELAY(4);
        }
        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
-       DELAY(1);
+       DELAY(4);
        if(x != 6 && x != 8) {
 #ifdef DEBUG
                printf("%s: strange EEPROM size (%d)\n", 
@@ -634,9 +634,9 @@
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL,
                            reg | FXP_EEPROM_EESK);
-                       DELAY(1);
+                       DELAY(4);
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
-                       DELAY(1);
+                       DELAY(4);
                }
                /*
                 * Shift in address.
@@ -650,9 +650,9 @@
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL,
                            reg | FXP_EEPROM_EESK);
-                       DELAY(1);
+                       DELAY(4);
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
-                       DELAY(1);
+                       DELAY(4);
                }
                reg = FXP_EEPROM_EECS;
                data[i] = 0;
@@ -662,15 +662,15 @@
                for (x = 16; x > 0; x--) {
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL,
                            reg | FXP_EEPROM_EESK);
-                       DELAY(1);
+                       DELAY(4);
                        if (CSR_READ_2(sc, FXP_CSR_EEPROMCONTROL) &
                            FXP_EEPROM_EEDO)
                                data[i] |= (1 << (x - 1));
                        CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, reg);
-                       DELAY(1);
+                       DELAY(4);
                }
                CSR_WRITE_2(sc, FXP_CSR_EEPROMCONTROL, 0);
-               DELAY(1);
+               DELAY(4);
        }
 }