arm: pxa: config option for PXA270 turbo mode

PXA270 CPU has turbo mode. The mode is 2.5 times faster than the
default run mode. Activating the mode early significantly speeds
up boot process.

Signed-off-by: Sergey Yanovich <ynvich@gmail.com>

diff --git a/arch/arm/cpu/pxa/pxa2xx.c b/arch/arm/cpu/pxa/pxa2xx.c
index 0c186101eccfaeb21f515e127b5cc297aaa49145..f07dc67823faebc4a49908d08715f5b829d763be 100644 (file)
--- a/arch/arm/cpu/pxa/pxa2xx.c
+++ b/arch/arm/cpu/pxa/pxa2xx.c
@@ -244,7 +244,7 @@ void pxa_clock_setup(void)
 {
        writel(CONFIG_SYS_CKEN, CKEN);
        writel(CONFIG_SYS_CCCR, CCCR);
-       asm volatile("mcr       p14, 0, %0, c6, c0, 0" : : "r"(2));
+       asm volatile("mcr       p14, 0, %0, c6, c0, 0" : : "r"(0x0b));
 
        /* enable the 32Khz oscillator for RTC and PowerManager */
        writel(OSCC_OON, OSCC);