blob: 3e920352f1f57ab86adf87b7a498e82397b30c54 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
$NetBSD: patch-ee,v 1.2 2010/08/11 17:05:13 tsutsui Exp $
qemu-0.13.x will include this fix:
http://git.qemu.org/qemu.git/commit/?id=9651ac55e5de0e1534d898316cc851af6ffc4334
--- hw/e1000.c.orig 2010-02-24 05:54:38.000000000 +0900
+++ hw/e1000.c 2010-05-08 04:04:39.000000000 +0900
@@ -259,21 +259,20 @@
s->eecd_state.old_eecd = val & (E1000_EECD_SK | E1000_EECD_CS |
E1000_EECD_DI|E1000_EECD_FWE_MASK|E1000_EECD_REQ);
+ if (!(E1000_EECD_CS & val)) // CS inactive; nothing to do
+ return;
+ if (E1000_EECD_CS & (val ^ oldval)) { // CS rise edge; reset state
+ s->eecd_state.val_in = 0;
+ s->eecd_state.bitnum_in = 0;
+ s->eecd_state.bitnum_out = 0;
+ s->eecd_state.reading = 0;
+ }
if (!(E1000_EECD_SK & (val ^ oldval))) // no clock edge
return;
if (!(E1000_EECD_SK & val)) { // falling edge
s->eecd_state.bitnum_out++;
return;
}
- if (!(val & E1000_EECD_CS)) { // rising, no CS (EEPROM reset)
- memset(&s->eecd_state, 0, sizeof s->eecd_state);
- /*
- * restore old_eecd's E1000_EECD_SK (known to be on)
- * to avoid false detection of a clock edge
- */
- s->eecd_state.old_eecd = E1000_EECD_SK;
- return;
- }
s->eecd_state.val_in <<= 1;
if (val & E1000_EECD_DI)
s->eecd_state.val_in |= 1;
|
