ARM i.MX irq: Compile avic irq code only on SoCs that need it

This patch adds a Kconfig option for the avic irq controller
and lets the SoCs that need it select this option.
Also, as we have two irq controllers for i.MX, irq.c is not
appropriate anymore, so rename it to avic.c

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 41b6450df810..8a9de1751b79 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -6,6 +6,7 @@ config SOC_IMX1
         select CPU_ARM920T
         select IMX_HAVE_DMA_V1
         select IMX_HAVE_IOMUX_V1
+        select MXC_AVIC
 
 config SOC_IMX21
         bool
@@ -13,12 +14,14 @@ config SOC_IMX21
         select ARCH_MXC_AUDMUX_V1
         select IMX_HAVE_DMA_V1
         select IMX_HAVE_IOMUX_V1
+        select MXC_AVIC
 
 config SOC_IMX25
         bool
         select CPU_ARM926T
         select ARCH_MXC_AUDMUX_V2
         select ARCH_MXC_IOMUX_V3
+        select MXC_AVIC
 
 config SOC_IMX27
         bool
@@ -26,6 +29,7 @@ config SOC_IMX27
         select ARCH_MXC_AUDMUX_V1
         select IMX_HAVE_DMA_V1
         select IMX_HAVE_IOMUX_V1
+        select MXC_AVIC
 
 if ARCH_MX1