davinci: make it possible to include clock.h and psc.h in assembly code

psc.h contains register defines for PSC module which
need to be accessed in assembly code which helps the
DA850/OMAP-L138 SoC go to sleep. Shutting down DDR clock
using PSC is a part of the sleep procedure.

Also, the PLL related hardware definitions in clock.h are
needed in assembly code to bypass the DDR2 PLL.

Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-davinci/include/mach/psc.h b/arch/arm/mach-davinci/include/mach/psc.h
index 2776b2356594..651f6d8158fa 100644
--- a/arch/arm/mach-davinci/include/mach/psc.h
+++ b/arch/arm/mach-davinci/include/mach/psc.h
@@ -191,8 +191,12 @@
 
 #define MDSTAT_STATE_MASK 0x1f
 
+#ifndef __ASSEMBLER__
+
 extern int davinci_psc_is_clk_active(unsigned int ctlr, unsigned int id);
 extern void davinci_psc_config(unsigned int domain, unsigned int ctlr,
                 unsigned int id, char enable);
 
+#endif
+
 #endif /* __ASM_ARCH_PSC_H */