arm: omap3: Make try_unlock_memory() static

try_unlock_memory() is only used in one file, so make it static
in that file,remove it from the sys_proto header file, and relocate
it into the #ifdef section that call it. This will make it only built
under the conditions when it is called, and it may help with some
further optimization in the future.
Signed-off-by: NAdam Ford <aford173@gmail.com>
Signed-off-by: NLokesh Vutla <lokeshvutla@ti.com>
Link: https://lore.kernel.org/r/20210625192308.277136-2-aford173@gmail.com

arch/arm/include/asm/arch-omap3/sys_proto.h

@@ -60,7 +60,6 @@ u32 is_running_in_sram(void);
 u32 is_running_in_flash(void);
 u32 get_device_type(void);
 void secureworld_exit(void);
-void try_unlock_memory(void);
 u32 get_boot_type(void);
 void invalidate_dcache(u32);
 u32 wait_on_value(u32, u32, void *, u32);

arch/arm/mach-omap2/omap3/board.c

@@ -140,12 +140,20 @@ void secureworld_exit(void)
 	__asm__ __volatile__("mcr p15, 0, %0, c1, c1, 0":"=r"(i));
 }
 
+void early_system_init(void)
+{
+	hw_data_init();
+}
+
+#if !defined(CONFIG_SKIP_LOWLEVEL_INIT) && \
+	!defined(CONFIG_SKIP_LOWLEVEL_INIT_ONLY)
+
 /******************************************************************************
  * Routine: try_unlock_sram()
  * Description: If chip is GP/EMU(special) type, unlock the SRAM for
  *              general use.
  *****************************************************************************/
-void try_unlock_memory(void)
+static void try_unlock_memory(void)
 {
 	int mode;
 	int in_sdram = is_running_in_sdram();
@@ -174,13 +182,6 @@ void try_unlock_memory(void)
 	return;
 }
 
-void early_system_init(void)
-{
-	hw_data_init();
-}
-
-#if !defined(CONFIG_SKIP_LOWLEVEL_INIT) && \
-	!defined(CONFIG_SKIP_LOWLEVEL_INIT_ONLY)
 /******************************************************************************
  * Routine: s_init
  * Description: Does early system init of muxing and clocks.