SPDX: Convert all of our single license tags to Linux Kernel style

[u-boot] / arch / arm / cpu / armv8 / transition.S

diff --git a/arch/arm/cpu/armv8/transition.S b/arch/arm/cpu/armv8/transition.S
index bbccf2b3958d09a1c0c9c99b4548805421805355..a31af4ffc8943af6aea86f24babcbcf8eeb3b1ae 100644 (file)
--- a/arch/arm/cpu/armv8/transition.S
+++ b/arch/arm/cpu/armv8/transition.S
@@ -1,8 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * (C) Copyright 2013
  * David Feng <fenghua@phytium.com.cn>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <asm-offsets.h>
@@ -10,25 +9,43 @@
 #include <linux/linkage.h>
 #include <asm/macro.h>
 
+.pushsection .text.armv8_switch_to_el2, "ax"
 ENTRY(armv8_switch_to_el2)
-       switch_el x5, 1f, 0f, 0f
+       switch_el x6, 1f, 0f, 0f
 0:
+       cmp x5, #ES_TO_AARCH64
+       b.eq 2f
        /*
-        * x3 is kernel entry point or switch_to_el1
+        * When loading 32-bit kernel, it will jump
+        * to secure firmware again, and never return.
+        */
+       bl armv8_el2_to_aarch32
+2:
+       /*
+        * x4 is kernel entry point or switch_to_el1
         * if CONFIG_ARMV8_SWITCH_TO_EL1 is defined.
          * When running in EL2 now, jump to the
-        * address saved in x3.
+        * address saved in x4.
         */
-       br x3
-1:     armv8_switch_to_el2_m x3, x4, x5
+       br x4
+1:     armv8_switch_to_el2_m x4, x5, x6
 ENDPROC(armv8_switch_to_el2)
+.popsection
 
+.pushsection .text.armv8_switch_to_el1, "ax"
 ENTRY(armv8_switch_to_el1)
-       switch_el x5, 0f, 1f, 0f
+       switch_el x6, 0f, 1f, 0f
 0:
-       /* x3 is kernel entry point. When running in EL1
-        * now, jump to the address saved in x3.
+       /* x4 is kernel entry point. When running in EL1
+        * now, jump to the address saved in x4.
         */
-       br x3
-1:     armv8_switch_to_el1_m x3, x4, x5
+       br x4
+1:     armv8_switch_to_el1_m x4, x5, x6
 ENDPROC(armv8_switch_to_el1)
+.popsection
+
+.pushsection .text.armv8_el2_to_aarch32, "ax"
+WEAK(armv8_el2_to_aarch32)
+       ret
+ENDPROC(armv8_el2_to_aarch32)
+.popsection