Merge branch 'master' of git://git.denx.de/u-boot-arm

[karo-tx-uboot.git] / arch / arm / lib / interrupts.c

diff --git a/arch/arm/lib/interrupts.c b/arch/arm/lib/interrupts.c
index 74ff5ce1c442564303ae09944f543517e5f3ce6e..4dacfd941f6dd220cfa2f5d2a7ae006b10d628a2 100644 (file)
--- a/arch/arm/lib/interrupts.c
+++ b/arch/arm/lib/interrupts.c
@@ -16,33 +16,20 @@
  * (C) Copyright 2004
  * Philippe Robin, ARM Ltd. <philippe.robin@arm.com>
  *
- * 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+
  */
 
 #include <common.h>
 #include <asm/proc-armv/ptrace.h>
+#include <asm/u-boot-arm.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
 #ifdef CONFIG_USE_IRQ
 int interrupt_init (void)
 {
+       unsigned long cpsr;
+
        /*
         * setup up stacks if necessary
         */
@@ -50,6 +37,31 @@ int interrupt_init (void)
        IRQ_STACK_START_IN = gd->irq_sp + 8;
        FIQ_STACK_START = IRQ_STACK_START - CONFIG_STACKSIZE_IRQ;
 
+
+       __asm__ __volatile__("mrs %0, cpsr\n"
+                            : "=r" (cpsr)
+                            :
+                            : "memory");
+
+       __asm__ __volatile__("msr cpsr_c, %0\n"
+                            "mov sp, %1\n"
+                            :
+                            : "r" (IRQ_MODE | I_BIT | F_BIT | (cpsr & ~FIQ_MODE)),
+                              "r" (IRQ_STACK_START)
+                            : "memory");
+
+       __asm__ __volatile__("msr cpsr_c, %0\n"
+                            "mov sp, %1\n"
+                            :
+                            : "r" (FIQ_MODE | I_BIT | F_BIT | (cpsr & ~IRQ_MODE)),
+                              "r" (FIQ_STACK_START)
+                            : "memory");
+
+       __asm__ __volatile__("msr cpsr_c, %0"
+                            :
+                            : "r" (cpsr)
+                            : "memory");
+
        return arch_interrupt_init();
 }
 
@@ -119,7 +131,7 @@ void show_regs (struct pt_regs *regs)
        "UK12_26",      "UK13_26",      "UK14_26",      "UK15_26",
        "USER_32",      "FIQ_32",       "IRQ_32",       "SVC_32",
        "UK4_32",       "UK5_32",       "UK6_32",       "ABT_32",
-       "UK8_32",       "UK9_32",       "UK10_32",      "UND_32",
+       "UK8_32",       "UK9_32",       "HYP_32",       "UND_32",
        "UK12_32",      "UK13_32",      "UK14_32",      "SYS_32",
        };