arm: omap-common: add secure smc entry

Add an interface for calling secure ROM APIs across a range of OMAP and
OMAP compatible high-security (HS) device variants. While at it, also
perform minor cleanup/alignment without any change in functionality.

Signed-off-by: Daniel Allred <[email protected]>
Signed-off-by: Andreas Dannenberg <[email protected]>
Reviewed-by: Simon Glass <[email protected]>
Reviewed-by: Tom Rini <[email protected]>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/include/asm/omap_common.h b/arch/arm/include/asm/omap_common.h
index 07f384867eb..605c549f0a5 100644
--- a/arch/arm/include/asm/omap_common.h
+++ b/arch/arm/include/asm/omap_common.h
@@ -627,6 +627,12 @@ void recalibrate_iodelay(void);
 
 void omap_smc1(u32 service, u32 val);
 
+/*
+ * Low-level helper function used when performing secure ROM calls on high-
+ * security (HS) device variants by doing a specially-formed smc entry.
+ */
+u32 omap_smc_sec(u32 service, u32 proc_id, u32 flag, u32 *params);
+
 void enable_edma3_clocks(void);
 void disable_edma3_clocks(void);