[U-Boot] [PATCH] Allow AM335x MPU core clock speed to be specified in the board config file

Mark Jackson mpfj-list at mimc.co.uk
Fri Mar 1 13:33:43 CET 2013


Allow AM335x MPU core clock speed to be specified in the board config file.
To use, add the following to the board's config file:-

#define V_MPUCLK	<desired clock freq in Hz>

Signed-off-by: Mark Jackson <mpfj at newflow.co.uk>
---
 arch/arm/include/asm/arch-am33xx/clocks_am33xx.h |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h b/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h
index d748dd2..acfa355 100644
--- a/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h
+++ b/arch/arm/include/asm/arch-am33xx/clocks_am33xx.h
@@ -22,7 +22,11 @@
 #define OSC	(V_OSCK/1000000)
 
 /* MAIN PLL Fdll = 550 MHZ, */
+#ifdef V_MPUCLK
+#define MPUPLL_M	(V_MPUCLK/1000000)
+#else
 #define MPUPLL_M	550
+#endif
 #define MPUPLL_N	(OSC-1)
 #define MPUPLL_M2	1
 
-- 
1.7.9.5



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