update to 2015.04-rc1

[karo-tx-uboot.git] / arch / arm / cpu / armv7 / cpu.c

diff --git a/arch/arm/cpu/armv7/cpu.c b/arch/arm/cpu/armv7/cpu.c
index c6fa8ef13617636a8c879cccbae626bf6ee8c2e1..f381d2ff9872f13464f16e5e3eb414150ab2cc61 100644 (file)
--- a/arch/arm/cpu/armv7/cpu.c
+++ b/arch/arm/cpu/armv7/cpu.c
@@ -8,23 +8,7 @@
  * (C) Copyright 2002
  * Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 /*
@@ -33,16 +17,13 @@
 
 #include <common.h>
 #include <command.h>
+#include <lcd.h>
 #include <asm/system.h>
 #include <asm/cache.h>
 #include <asm/armv7.h>
+#include <linux/compiler.h>
 
-void save_boot_params_default(u32 r0, u32 r1, u32 r2, u32 r3)
-{
-}
-
-void save_boot_params(u32 r0, u32 r1, u32 r2, u32 r3)
-       __attribute__((weak, alias("save_boot_params_default")));
+void __weak cpu_cache_initialization(void){}
 
 int cleanup_before_linux(void)
 {
@@ -54,7 +35,15 @@ int cleanup_before_linux(void)
         */
 #ifndef CONFIG_SPL_BUILD
        disable_interrupts();
-#endif
+#ifdef CONFIG_LCD
+       {
+               /* switch off LCD panel */
+               lcd_panel_disable();
+               /* disable LCD controller */
+               lcd_disable();
+       }
+#endif /* CONFIG_LCD */
+#endif /* CONFIG_SPL_BUILD */
 
        /*
         * Turn off I-cache and invalidate it
@@ -73,7 +62,7 @@ int cleanup_before_linux(void)
         * After D-cache is flushed and before it is disabled there may
         * be some new valid entries brought into the cache. We are sure
         * that these lines are not dirty and will not affect our execution.
-        * (because unwinding the call-stack and setting a bit in CP15 SCTRL
+        * (because unwinding the call-stack and setting a bit in CP15 SCTLR
         * is all we did during this. We have not pushed anything on to the
         * stack. Neither have we affected any static data)
         * So just invalidate the entire d-cache again to avoid coherency
@@ -81,5 +70,10 @@ int cleanup_before_linux(void)
         */
        invalidate_dcache_all();
 
+       /*
+        * Some CPU need more cache attention before starting the kernel.
+        */
+       cpu_cache_initialization();
+
        return 0;
 }