Hello,
I think there is an issue in if_at91.c for detecting if the Phy is idle.
The bit is set to one when idle not zero and so in at91_read_phy there was
an infinite loop.
The below patch fixes the error and the comments.
Index: packages/devs/eth/arm/at91/current/src/if_at91.c
===================================================================
RCS file: /cvs/ecos/ecos/packages/devs/eth/arm/at91/current/src/if_at91.c,v
retrieving revision 1.3
diff -u -w -b -r1.3 if_at91.c
--- packages/devs/eth/arm/at91/current/src/if_at91.c 29 Jan 2009
17:47:59 -0000 1.3
+++ packages/devs/eth/arm/at91/current/src/if_at91.c 28 Jul 2010 21:40:09
-0000
@@ -224,7 +224,7 @@
HAL_WRITE_UINT32(AT91_EMAC + AT91_EMAC_MAN, val);
- /* Wait until IDLE bit in Network Status register is cleared */
+ /* Wait until IDLE bit in Network Status register is set */
while (cnt < 1000000)
{
HAL_READ_UINT32((AT91_EMAC + AT91_EMAC_NSR), val);
@@ -252,11 +252,11 @@
HAL_WRITE_UINT32(AT91_EMAC + AT91_EMAC_MAN, val);
- /* Wait until IDLE bit in Network Status register is cleared */
+ /* Wait until IDLE bit in Network Status register is set */
do
{
HAL_READ_UINT32((AT91_EMAC + AT91_EMAC_NSR), val);
- }while(val & AT91_EMAC_NSR_IDLE);
+ }while(!(val & AT91_EMAC_NSR_IDLE));
HAL_DELAY_US(50);
--
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