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* [Qemu-devel] [PATCH] hw/pcnet.c: Fix EPROM contents to suit AMD netware drivers
@ 2011-03-05 12:44 Gerhard Wiesinger
  2011-03-05 13:25 ` Blue Swirl
  0 siblings, 1 reply; 7+ messages in thread
From: Gerhard Wiesinger @ 2011-03-05 12:44 UTC (permalink / raw)
  To: qemu-devel

bugfix under DOS for AMD netware driver:
AMD PCNTNW Ethernet MLID v3.10 (960115), network card not found

bugfix works well under DOS with:
1.) AMD NDIS driver v2.0.1
2.) AMD PCNTNW Ethernet MLID v3.10 (960115)
3.) Knoppix 6.2

Signed-off-by: Gerhard Wiesinger <lists@wiesinger.com>
---
  hw/pcnet.c |   16 ++++++++++++++++
  1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/hw/pcnet.c b/hw/pcnet.c
index db52dc5..6dfdcc4 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1562,8 +1562,24 @@ void pcnet_h_reset(void *opaque)

      /* Initialize the PROM */

+    /*
+      Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
+      page 95
+    */
      memcpy(s->prom, s->conf.macaddr.a, 6);
+    /* Reserved Location: must be 00h */
+    s->prom[6] = s->prom[7] = 0x00;
+    /* Reserved Location: must be 00h */
+    s->prom[8] = 0x00;
+    /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
+    s->prom[9] = 0x11;
+    /* User programmable space, init with 0 */
+    s->prom[10] = s->prom[11] = 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[12] = s->prom[13] = 0x00;
+    /* Must be ASCII W (57h) if compatibility to AMD
+       driver software is desired */
      s->prom[14] = s->prom[15] = 0x57;

      for (i = 0,checksum = 0; i < 16; i++)
-- 
1.7.3.4

^ permalink raw reply related	[flat|nested] 7+ messages in thread
* [Qemu-devel] [PATCH] hw/pcnet.c: Fix EPROM contents to suit AMD netware drivers
@ 2011-02-23 20:20 Gerhard Wiesinger
  2011-03-01 19:20 ` Gerhard Wiesinger
  0 siblings, 1 reply; 7+ messages in thread
From: Gerhard Wiesinger @ 2011-02-23 20:20 UTC (permalink / raw)
  To: qemu-devel

bugfix under DOS for AMD netware driver:
AMD PCNTNW Ethernet MLID v3.10 (960115), network card not found

bugfix works well under DOS with:
1.) AMD NDIS driver v2.0.1
2.) AMD PCNTNW Ethernet MLID v3.10 (960115)
3.) Knoppix 6.2
---
  hw/pcnet.c |   16 ++++++++++++++++
  1 files changed, 16 insertions(+), 0 deletions(-)

diff --git a/hw/pcnet.c b/hw/pcnet.c
index db52dc5..6dfdcc4 100644
--- a/hw/pcnet.c
+++ b/hw/pcnet.c
@@ -1562,8 +1562,24 @@ void pcnet_h_reset(void *opaque)

      /* Initialize the PROM */

+    /*
+      Datasheet: http://pdfdata.datasheetsite.com/web/24528/AM79C970A.pdf
+      page 95
+    */
      memcpy(s->prom, s->conf.macaddr.a, 6);
+    /* Reserved Location: must be 00h */
+    s->prom[6] = s->prom[7] = 0x00;
+    /* Reserved Location: must be 00h */
+    s->prom[8] = 0x00;
+    /* Hardware ID: must be 11h if compatibility to AMD drivers is desired */
+    s->prom[9] = 0x11;
+    /* User programmable space, init with 0 */
+    s->prom[10] = s->prom[11] = 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[12] = s->prom[13] = 0x00;
+    /* Must be ASCII W (57h) if compatibility to AMD
+       driver software is desired */
      s->prom[14] = s->prom[15] = 0x57;

      for (i = 0,checksum = 0; i < 16; i++)
-- 
1.7.3.4

^ permalink raw reply related	[flat|nested] 7+ messages in thread

end of thread, other threads:[~2011-03-05 13:42 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-03-05 12:44 [Qemu-devel] [PATCH] hw/pcnet.c: Fix EPROM contents to suit AMD netware drivers Gerhard Wiesinger
2011-03-05 13:25 ` Blue Swirl
2011-03-05 13:41   ` Gerhard Wiesinger
  -- strict thread matches above, loose matches on Subject: below --
2011-02-23 20:20 Gerhard Wiesinger
2011-03-01 19:20 ` Gerhard Wiesinger
2011-03-05 12:13   ` Blue Swirl
2011-03-05 12:45     ` Gerhard Wiesinger

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