[sundance] Add reset completion check

[people/andreif/gpxe.git] / src / drivers / net / sundance.c

diff --git a/src/drivers/net/sundance.c b/src/drivers/net/sundance.c
index eb750fb..119c977 100644 (file)
--- a/src/drivers/net/sundance.c
+++ b/src/drivers/net/sundance.c
@@ -691,6 +691,22 @@ static int sundance_probe ( struct nic *nic, struct pci_device *pci ) {
        /* Reset the chip to erase previous misconfiguration */
        DBG ( "ASIC Control is %#x\n", inl(BASE + ASICCtrl) );
        outw(0x007f, BASE + ASICCtrl + 2);
+
+       /*
+       * wait for reset to complete
+       * this is heavily inspired by the linux sundance driver
+       * according to the linux driver it can take up to 1ms for the reset
+       * to complete
+       */
+       i = 0;
+       while(inl(BASE + ASICCtrl) & (ResetBusy << 16)) {
+               if(i++ >= 10) {
+                       DBG("sundance: NIC reset did not complete.\n");
+                       break;
+               }
+               udelay(100);
+       }
+
        DBG ( "ASIC Control is now %#x.\n", inl(BASE + ASICCtrl) );
 
        sundance_reset(nic);