[ARM] pata_pxa: DMA-capable PATA driver

This patch adds a driver for a harddrive attached to PXA address and data bus.
Unlike pata_platform, this driver allows usage of PXA DMA controller, making the
transmission speed 3x higher.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index aa85a98d3a4f..25e030f9a3e6 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -642,6 +642,17 @@ config PATA_VIA
 
           If unsure, say N.
 
+config PATA_PXA
+        tristate "PXA DMA-capable PATA support"
+        depends on ARCH_PXA
+        help
+          This option enables support for harddrive attached to PXA CPU's bus.
+
+          NOTE: This driver utilizes PXA DMA controller, in case your hardware
+                is not capable of doing MWDMA, use pata_platform instead.
+
+          If unsure, say N.
+
 config PATA_WINBOND
         tristate "Winbond SL82C105 PATA support"
         depends on PCI