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| author | Diana CRACIUN <Diana.Craciun@freescale.com> | 2011-08-31 02:45:23 +0000 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2011-09-05 16:07:44 +0200 |
| commit | 99ffccbd3e5b7bc715e2eed6ea6d36f4020b56d8 (patch) | |
| tree | e7a052f7678d7d86acbbfd0bf4d70385d99477ff /common | |
| parent | 019fd6d45b611193610e3366392c53a817c3cee2 (diff) | |
| download | talos-obmc-uboot-99ffccbd3e5b7bc715e2eed6ea6d36f4020b56d8.tar.gz talos-obmc-uboot-99ffccbd3e5b7bc715e2eed6ea6d36f4020b56d8.zip | |
Flush cache after the OS image is loaded into the memory.
Since we are loading an executable image into memory we need flush it
out of the cache to possible maintain coherence on CPUs with split
instruction and data caches. We do this for other executable image
loading command.
On PowerPC once we do this we no longer need to explicitly flush the
dcache on multi-core systems in the BOOTM_STATE_OS_PREP phase. We now
treat the BOOTM_STATE_OS_PREP as a no-op to maintain backwards
compatibility with the bootm subcommand.
Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Diana CRACIUN <Diana.Craciun@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'common')
| -rw-r--r-- | common/cmd_bootm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c index 272d879beb..8909ee703d 100644 --- a/common/cmd_bootm.c +++ b/common/cmd_bootm.c @@ -432,6 +432,9 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress) printf ("Unimplemented compression type %d\n", comp); return BOOTM_ERR_UNIMPLEMENTED; } + + flush_cache(load, (*load_end - load) * sizeof(ulong)); + puts ("OK\n"); debug (" kernel loaded at 0x%08lx, end = 0x%08lx\n", load, *load_end); if (boot_progress) |
