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[Qemu-devel] [PATCH 2/2 V1] Fixed EPROM for AMD driver compatibility und
From: |
Gerhard Wiesinger |
Subject: |
[Qemu-devel] [PATCH 2/2 V1] Fixed EPROM for AMD driver compatibility under DOS with Netware driver |
Date: |
Sun, 20 Feb 2011 20:53:19 +0100 (CET) |
User-agent: |
Alpine 2.02 (LFD 1266 2009-07-14) |
Signed-off-by: Gerhard Wiesinger <address@hidden>
---
hw/pcnet.c | 12 ++++++++++--
1 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/hw/pcnet.c b/hw/pcnet.c
index db52dc5..a6d5784 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1562,9 +1562,17 @@ void pcnet_h_reset(void *opaque)
/* Initialize the PROM */
+ // Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
+ // page 95
+ // bugfix under DOS with AMD netware driver: AMD PCNTNW Ethernet MLID
v3.10 (960115), network card not found
+ // works well under DOS with AMD NDIS driver v2.0.1, Knoppix 6.2 ok
memcpy(s->prom, s->conf.macaddr.a, 6);
- s->prom[12] = s->prom[13] = 0x00;
- s->prom[14] = s->prom[15] = 0x57;
+ s->prom[6] = s->prom[7] = 0x00; // Reserved Location: must be 00h
+ s->prom[8] = 0x00; // Reserved Location: must be 00h
+ s->prom[9] = 0x11; // Hardware ID: must be 11h if compatibility to AMD
drivers is desired
+ s->prom[10] = s->prom[11] = 0x00; // User programmable space
+ s->prom[12] = s->prom[13] = 0x00; // LSByte of two-byte checksum, which is
the sum of bytes 00hâ??0Bh and bytes 0Eh and 0Fh, must therefore be initialized with
0!
+ s->prom[14] = s->prom[15] = 0x57; // Must be ASCII W (57h) if
compatibility to AMD driver software is desired
for (i = 0,checksum = 0; i < 16; i++)
checksum += s->prom[i];
--
1.7.3.4
Signed-off-by: Gerhard Wiesinger <address@hidden>
---
hw/pcnet.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/hw/pcnet.c b/hw/pcnet.c
index a6d5784..2acd5f9 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1571,7 +1571,7 @@ void pcnet_h_reset(void *opaque)
s->prom[8] = 0x00; // Reserved Location: must be 00h
s->prom[9] = 0x11; // Hardware ID: must be 11h if compatibility to AMD
drivers is desired
s->prom[10] = s->prom[11] = 0x00; // User programmable space
- s->prom[12] = s->prom[13] = 0x00; // LSByte of two-byte checksum, which is
the sum of bytes 00hâ??0Bh and bytes 0Eh and 0Fh, must therefore be initialized with
0!
+ s->prom[12] = s->prom[13] = 0x00; // LSByte of two-byte checksum, which is
the sum of bytes 00h-0Bh and bytes 0Eh and 0Fh, must therefore be initialized with 0!
s->prom[14] = s->prom[15] = 0x57; // Must be ASCII W (57h) if
compatibility to AMD driver software is desired
for (i = 0,checksum = 0; i < 16; i++)
--
1.7.3.4
- [Qemu-devel] [PATCH 2/2 V1] Fixed EPROM for AMD driver compatibility under DOS with Netware driver,
Gerhard Wiesinger <=