davinci: Add LCD Graphics support for DA830/OMAP-L137 EVM

Add graphics support for the Sharp LCD035Q3DG01 graphical
LCD that's on the User Interface (UI) daughter card of the
DA830/OMAP-L137 EVM.

The LCD shares EMIFA lines with the NAND and NOR devices that
are also on the UI card so those lines are shared via a couple
of muxes.  The muxes are controlled by the 'MUX_MODE' line on
the UI card.  The 'MUX_MODE' line is controlled by pin P6 of
a pcf8574 i2c expander that's at i2c address 0x3f on UI card.
The i2c expander is controlled using the gpio infrastructure
from the board code using the 'setup()' and 'teardown()'
routines.

Signed-off-by: Steve Chen <schen@mvista.com>
Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index 40866c643f13..7b6dddf08e94 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -101,6 +101,27 @@ config MACH_DAVINCI_DA830_EVM
         help
           Say Y here to select the TI DA830/OMAP-L137 Evaluation Module.
 
+config DA830_UI
+        bool "DA830/OMAP-L137 UI (User Interface) board support"
+        depends on MACH_DAVINCI_DA830_EVM
+        help
+          Say Y here if you have the DA830/OMAP-L137 UI
+          (User Interface) board installed and you want to
+          enable the peripherals located on User Interface
+          board.
+
+choice
+        prompt "Select DA830/OMAP-L137 UI board peripheral"
+        depends on DA830_UI
+
+config DA830_UI_LCD
+        bool "LCD"
+        help
+          Say Y here to use the LCD as a framebuffer or simple character
+          display.
+
+endchoice
+
 config MACH_DAVINCI_DA850_EVM
         bool "TI DA850/OMAP-L138 Reference Platform"
         default ARCH_DAVINCI_DA850