Alan wrote:
@@ -5142,6 +5174,20 @@
status = ata_chk_status(ap);
if (unlikely(status & ATA_BUSY))
goto idle_irq;
+
+ if (unlikely(qc->tf.command == ATA_CMD_SET_FEATURES &&
+ qc->tf.feature == SETFEATURES_XFER)) {
+ /* Let the timings change settle and the drive catch up as
+ some hardware needs up to 10uS to get its brain back in
+ gear. Taken from the workarounds in drivers/ide done by
+ Matthew Faupel/Niccolo Rigacci */
+ for (i = 0; i < 10; i++) {
+ if ((status & (ATA_BUSY | ATA_DRQ | ATA_ERR)) == 0)
+ break;
+ udelay(1);
+ status = ata_chk_status(ap);
+ }
Looks like you should use ata_busy_wait() here, rather than reproducing
the same code again.
Jeff
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