ARM: mmp: build sram driver alone

sram driver can be used by many chips besides CPU_MMP2, and so build
it alone. Also need to select MMP_SRAM for MMP_TDMA driver.

Reported-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>

3 files changed, 7 insertions, 1 deletions

diff --git a/arch/arm/mach-mmp/Kconfig b/arch/arm/mach-mmp/Kconfig
index ebdda8346a26..ebdba87b9671 100644
--- a/arch/arm/mach-mmp/Kconfig
+++ b/arch/arm/mach-mmp/Kconfig
@@ -136,4 +136,7 @@ config USB_EHCI_MV_U2O
         help
           Enables support for OTG controller which can be switched to host mode.
 
+config MMP_SRAM
+        bool
+
 endif
diff --git a/arch/arm/mach-mmp/Makefile b/arch/arm/mach-mmp/Makefile
index 9b702a1dc7b0..98f0f6388e44 100644
--- a/arch/arm/mach-mmp/Makefile
+++ b/arch/arm/mach-mmp/Makefile
@@ -7,7 +7,8 @@ obj-y				+= common.o devices.o time.o
 # SoC support
 obj-$(CONFIG_CPU_PXA168)        += pxa168.o
 obj-$(CONFIG_CPU_PXA910)        += pxa910.o
-obj-$(CONFIG_CPU_MMP2)          += mmp2.o sram.o
+obj-$(CONFIG_CPU_MMP2)          += mmp2.o
+obj-$(CONFIG_MMP_SRAM)          += sram.o
 
 ifeq ($(CONFIG_COMMON_CLK), )
 obj-y                           += clock.o
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 446687cc2334..af3676333da4 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -289,9 +289,11 @@ config MMP_TDMA
         bool "MMP Two-Channel DMA support"
         depends on ARCH_MMP
         select DMA_ENGINE
+        select MMP_SRAM
         help
           Support the MMP Two-Channel DMA engine.
           This engine used for MMP Audio DMA and pxa910 SQU.
+          It needs sram driver under mach-mmp.
 
           Say Y here if you enabled MMP ADMA, otherwise say N.