[ARM] 3992/1: i.MX/MX1 CPU Frequency scaling support
Support to change MX1 CPU frequency at runtime.
Tested on PiKRON's PiMX1 board and seems to be fully
stable up to 200 MHz end even as low as 8 MHz.
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1a59110..63e7c0c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -732,7 +732,7 @@
endmenu
-if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP)
+if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX )
menu "CPU Frequency scaling"
@@ -759,6 +759,15 @@
If in doubt, say Y.
+config CPU_FREQ_IMX
+ tristate "CPUfreq driver for i.MX CPUs"
+ depends on ARCH_IMX && CPU_FREQ
+ default n
+ help
+ This enables the CPUfreq driver for i.MX CPUs.
+
+ If in doubt, say N.
+
endmenu
endif