ST SPEAr: PCIE gadget suppport

This is a configurable gadget.  can be configured by configfs interface.
Any IP available at PCIE bus can be programmed to be used by host
controller.It supoorts both INTX and MSI.

By default, the gadget is configured for INTX and SYSRAM1 is mapped to
BAR0 with size 0x1000

Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: Viresh Kumar <viresh.kumar@st.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 203500d9b848..4e007c6a4b44 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -402,6 +402,16 @@ config DS1682
           This driver can also be built as a module.  If so, the module
           will be called ds1682.
 
+config SPEAR13XX_PCIE_GADGET
+        bool "PCIe gadget support for SPEAr13XX platform"
+        depends on ARCH_SPEAR13XX
+        default n
+        help
+         This option enables gadget support for PCIe controller. If
+         board file defines any controller as PCIe endpoint then a sysfs
+         entry will be created for that controller. User can use these
+         sysfs node to configure PCIe EP as per his requirements.
+
 config TI_DAC7512
         tristate "Texas Instruments DAC7512"
         depends on SPI && SYSFS