ide: Add tx4939ide driver (v6)

This is the driver for the Toshiba TX4939 SoC ATA controller.

This controller has standard ATA taskfile registers and DMA
command/status registers, but the register layout is swapped on big
endian.  There are some other endian issue and some special registers
which requires many custom dma_ops/tp_ops routines and build_dmatable.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: ralf@linux-mips.org
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index a820ca6fc327..4e88c72cee42 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -720,6 +720,11 @@ config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
        default "128"
        depends on BLK_DEV_IDE_AU1XXX
 
+config BLK_DEV_IDE_TX4939
+        tristate "TX4939 internal IDE support"
+        depends on SOC_TX4939
+        select BLK_DEV_IDEDMA_SFF
+
 config IDE_ARM
         tristate "ARM IDE support"
         depends on ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)