Blackfin: Allow bf548 ATAPI to be routed to GPIO

By default, it is routed to async memory address. In GPIO case,
GPIO peripheral PINs should be requested in advance.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index dcf657159051..8d24eaabe589 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -11,6 +11,13 @@ config DEB_DMA_URGENT
         help
           Treat any DEB1, DEB2 and DEB3 request as Urgent
 
+config BF548_ATAPI_ALTERNATIVE_PORT
+        bool "BF548 ATAPI alternative port via GPIO"
+        help
+          BF548 ATAPI data and address PINs can be routed through
+          async address or GPIO port F and G. Select y to route it
+          to GPIO.
+
 comment "Interrupt Priority Assignment"
 menu "Priority"