drivers/ide: PATA driver for Celleb

This is the patch (based on 2.6.19-rc4) for PATA controller of
Toshiba Cell reference set(Celleb). The reference set consists
of Cell, 512MB memory, Super Companion Chip(SCC) and some
peripherals such as HDD, GbE, etc. You can see brief explanation
and picture of Cell reference set at following URLs.

    http://www.toshiba.co.jp/about/press/2005_09/pr2001.htm
    http://cell-industries.com/toshiba_announces.php

We use a drivers/ide driver because its design is more suitable for
SCC IDE controller than libata driver. Since SCC supports only 32bit
read/write, we must override many callbacks of ata_port_operations
by modifying generic helpers. Each time the libata common code is
updated, we must update those modified helpers. It is very hard for us.
But we will try to implement the libata driver as needed.

Signed-off-by: Kou Ishizaki <kou.ishizaki at toshiba.co.jp>
Signed-off-by: Akira Iguchi <akira2.iguchi at toshiba.co.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index ec03341d2bd8..350764ece7fe 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -797,6 +797,14 @@ config BLK_DEV_IDEDMA_PMAC
           to transfer data to and from memory.  Saying Y is safe and improves
           performance.
 
+config BLK_DEV_IDE_CELLEB
+        bool "Toshiba's Cell Reference Set IDE support"
+        depends on PPC_CELLEB
+        help
+          This driver provides support for the built-in IDE controller on
+          Toshiba Cell Reference Board.
+          If unsure, say Y.
+
 config BLK_DEV_IDE_SWARM
         tristate "IDE for Sibyte evaluation boards"
         depends on SIBYTE_SB1xxx_SOC