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| author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-12-10 14:31:56 +0100 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-12-10 22:23:59 +0100 |
| commit | f15ea6e1d67782a1626d4a4922b6c20e380085e5 (patch) | |
| tree | 57d78f1ee94a2060eaa591533278d2934d4f1da3 /arch/sparc/cpu/leon3/start.S | |
| parent | cb7ee1b98cac6baf244daefb1192adf5a47bc983 (diff) | |
| parent | f44483b57c49282299da0e5c10073b909cdad979 (diff) | |
| download | blackbird-obmc-uboot-f15ea6e1d67782a1626d4a4922b6c20e380085e5.tar.gz blackbird-obmc-uboot-f15ea6e1d67782a1626d4a4922b6c20e380085e5.zip | |
Merge branch 'u-boot/master' into 'u-boot-arm/master'
Conflicts:
arch/arm/cpu/armv7/rmobile/Makefile
doc/README.scrapyard
Needed manual fix:
arch/arm/cpu/armv7/omap-common/Makefile
board/compulab/cm_t335/u-boot.lds
Diffstat (limited to 'arch/sparc/cpu/leon3/start.S')
| -rw-r--r-- | arch/sparc/cpu/leon3/start.S | 66 |
1 files changed, 37 insertions, 29 deletions
diff --git a/arch/sparc/cpu/leon3/start.S b/arch/sparc/cpu/leon3/start.S index bbc1b3476c..cf897f6877 100644 --- a/arch/sparc/cpu/leon3/start.S +++ b/arch/sparc/cpu/leon3/start.S @@ -1,33 +1,41 @@ -#include <config.h> - -TRAP ta 0; nop; nop; nop; - -/* Software trap. Treat as BAD_TRAP for the time being... */ -#define SOFT_TRAP TRAP(_hwerr) - -#define PSR_INIT 0x1FC0 /* Disable traps, set s and ps */ -#define WIM_INIT 2 - -/* All traps low-level code here must end with this macro. */ -#define RESTORE_ALL b ret_trap_entry; clr %l6; - -#define WRITE_PAUSE nop;nop;nop - -WINDOWSIZE = (16 * 4) -ARGPUSHSIZE = (6 * 4) -ARGPUSH = (WINDOWSIZE + 4) -MINFRAME = (WINDOWSIZE + ARGPUSHSIZE + 4) - -/* Number of register windows */ -#ifndef CONFIG_SYS_SPARC_NWINDOWS -#error Must define number of SPARC register windows, default is 8 -#endif - -#define STACK_ALIGN 8 -#define SA(X) (((X)+(STACK_ALIGN-1)) & ~(STACK_ALIGN-1)) +/* This is where the SPARC/LEON3 starts + * Copyright (C) 2007, + * Daniel Hellstrom, daniel@gaisler.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * SPDX-License-Identifier: GPL-2.0+ + */ - .section ".start", "ax" - .globl _starttate */ +#include <asm-offsets.h> +#include <config.h> +#include <asm/asmmacro.h> +#include <asm/winmacro.h> +#include <asm/psr.h> +#include <asm/stack.h> +#include <asm/leon.h> +#include <version.h> + +/* Entry for traps which jump to a programmer-specified trap handler. */ +#define TRAPR(H) \ + wr %g0, 0xfe0, %psr; \ + mov %g0, %tbr; \ + ba (H); \ + mov %g0, %wim; + +#define TRAP(H) \ + mov %psr, %l0; \ + ba (H); \ + nop; nop; + +#define TRAPI(ilevel) \ + mov ilevel, %l7; \ + mov %psr, %l0; \ + b _irq_entry; \ + mov %wim, %l3 + +/* Unexcpected trap will halt the processor by forcing it to error state */ #undef BAD_TRAP #define BAD_TRAP ta 0; nop; nop; nop; |
