--- rockbox-19596-dma/firmware/target/arm/ata-pp5020.c	2008-12-26 16:18:00.303200000 -0500
+++ chk/firmware/target/arm/ata-pp5020.c	2008-12-26 20:15:16.975000000 -0500
@@ -153,7 +153,7 @@
    and then call ata_dma_finish().
  */
 bool ata_dma_setup(void *addr, unsigned long bytes, bool write) {
-    if (bytes <= 512 || ((unsigned long)addr & 3))
+    if (bytes <= 1024 || ((unsigned long)addr & 3))
         return false;
 
 #if ATA_MAX_UDMA > 2