From b75bd27f89ac6c105cebb6507cf082b6f5fffc7d Mon Sep 17 00:00:00 2001 From: Renato Andreola renato.andreola@imagos.it Date: Fri, 10 Apr 2009 12:32:29 +0200 Subject: Nios2: do_boom_linux(): kernel gunzip input data integrity problem due to mi ssing cache flush
Added instruction and data caches flush
Signed-off-by: Renato Andreola renato.andreola@imagos.it --- lib_nios2/bootm.c | 8 +++++++- 1 files changed, 7 insertions(+), 1 deletions(-)
diff --git a/lib_nios2/bootm.c b/lib_nios2/bootm.c index 53fd569..1e8034b 100644 --- a/lib_nios2/bootm.c +++ b/lib_nios2/bootm.c @@ -2,6 +2,9 @@ * (C) Copyright 2003, Psyent Corporation <www.psyent.com> * Scott McNutt smcnutt@psyent.com * + * (C) Copyright 2009, Imagos sas <www.imagos.it> + * Renato Andreola renato.andreola@imagos.it + * * See file CREDITS for list of people who contributed to this * project. * @@ -24,6 +27,7 @@ #include <common.h> #include <command.h> #include <asm/byteorder.h> +#include <asm/cache.h>
int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images) { @@ -31,7 +35,9 @@ int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
if ((flag != 0) && (flag != BOOTM_STATE_OS_GO)) return 1; - + /* flushes data and instruction caches before calling the kernel */ + flush_dcache (0,CONFIG_SYS_DCACHE_SIZE ); + flush_icache (0,CONFIG_SYS_ICACHE_SIZE); /* For now we assume the Microtronix linux ... which only * needs to be called ;-) */