From caddbcecc99d7f96fdf7ca9c3d89ffac9cb999e1 Mon Sep 17 00:00:00 2001 From: Renato Andreola renato.andreola@imagos.it Date: Thu, 6 Aug 2009 11:03:19 +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 | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/lib_nios2/bootm.c b/lib_nios2/bootm.c index 53fd569..65bb4cb 100644 --- a/lib_nios2/bootm.c +++ b/lib_nios2/bootm.c @@ -24,6 +24,7 @@ #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) { @@ -32,6 +33,10 @@ 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 ;-) */