/*
* Copyright (C) 2005-2008 Atmel Corporation
*
- * 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 <asm-offsets.h>
#include <config.h>
#include <asm/ptrace.h>
#include <asm/sysreg.h>
#define SYSREG_MMUCR_S_OFFSET 4
#define SR_INIT (SYSREG_BIT(GM) | SYSREG_BIT(EM) | SYSREG_BIT(M0))
-#define CPUCR_INIT (SYSREG_BIT(BI) | SYSREG_BIT(BE) \
- | SYSREG_BIT(FE) | SYSREG_BIT(RE) \
- | SYSREG_BIT(IBE) | SYSREG_BIT(IEE))
+/* due to errata (unreliable branch folding) clear FE bit explicitly */
+#define CPUCR_INIT ((SYSREG_BIT(BI) | SYSREG_BIT(BE) \
+ | SYSREG_BIT(RE) | SYSREG_BIT(IBE) \
+ | SYSREG_BIT(IEE)) & ~SYSREG_BIT(FE))
/*
* To save some space, we use the same entry point for
.org 0x44
rjmp unknown_exception /* DTLB Modified */
- .org 0x50
- rjmp unknown_exception /* ITLB Miss */
- .org 0x60
- rjmp unknown_exception /* DTLB Miss (read) */
- .org 0x70
- rjmp unknown_exception /* DTLB Miss (write) */
+ .org 0x50 /* ITLB Miss */
+ pushm r8-r12,lr
+ rjmp 1f
+ .org 0x60 /* DTLB Miss (read) */
+ pushm r8-r12,lr
+ rjmp 1f
+ .org 0x70 /* DTLB Miss (write) */
+ pushm r8-r12,lr
+1: mov r12, sp
+ rcall mmu_handle_tlb_miss
+ popm r8-r12,lr
+ brne unknown_exception
+ rete
.size _evba, . - _evba
/* zero out .bss */
mov r0, 0
mov r1, 0
- lda.w r9, _end
+ lda.w r9, __bss_end
sub r9, r8
1: st.d r10++, r0
sub r9, 8