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| author | Thomas Miletich <thomas.miletich@gmail.com> | 2009-02-27 13:52:03 -0500 |
|---|---|---|
| committer | Marty Connor <mdc@etherboot.org> | 2009-02-27 13:52:03 -0500 |
| commit | afe59d46368e3b6f2b4110e3230c03ed84a2c861 (patch) | |
| tree | 32296017becdf1790249cebc77dd56f1d606d8f5 | |
| parent | b9d791f4d1c8c013397e1717ca5466257cc33900 (diff) | |
| download | ipxe-afe59d46368e3b6f2b4110e3230c03ed84a2c861.tar.gz | |
[sundance] Add reset completion check
Following the example of the Linux driver, we add a check and delay to
make sure that the NIC has finished resetting before the driver issues
any additional commands.
Signed-off-by: Marty Connor <mdc@etherboot.org>
| -rw-r--r-- | src/drivers/net/sundance.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/drivers/net/sundance.c b/src/drivers/net/sundance.c index eb750fb1d..119c97782 100644 --- 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); |