diff options
| author | David Hendricks <dhendrix@chromium.org> | 2013-03-28 18:26:03 -0700 |
|---|---|---|
| committer | David Hendricks <dhendrix@chromium.org> | 2013-03-29 18:15:13 +0100 |
| commit | 7b19f669025a9f1dfc32035d7c93231e7a59c456 (patch) | |
| tree | 954c990305c681f1474e075b0db41e26f365f0b8 | |
| parent | 8234874fbc10d71f620a2814a1faaed3b097db6c (diff) | |
armv7: iterate thru all levels when doing dcache ops
This makes dcache maintenance functions operate on all levels
of cache instead of just the current one.
Change-Id: I2708fc7ba6da6740dbdfd733d937e7c943012d62
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2945
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Tested-by: build bot (Jenkins)
| -rw-r--r-- | src/arch/armv7/lib/cache.c | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/src/arch/armv7/lib/cache.c b/src/arch/armv7/lib/cache.c index 8709daf1ee..da03a81fd8 100644 --- a/src/arch/armv7/lib/cache.c +++ b/src/arch/armv7/lib/cache.c @@ -148,14 +148,39 @@ static void dcache_op_set_way(enum dcache_op op) dsb(); } +static void dcache_foreach(enum dcache_op op) +{ + uint32_t clidr; + int level; + + clidr = read_clidr(); + for (level = 0; level < 7; level++) { + unsigned int ctype = (clidr >> (level * 3)) & 0x7; + uint32_t csselr; + + switch(ctype) { + case 0x2: + case 0x3: + case 0x4: + csselr = level << 1; + write_csselr(csselr); + dcache_op_set_way(op); + break; + default: + /* no cache, icache only, or reserved */ + break; + } + } +} + void dcache_clean_invalidate_all(void) { - dcache_op_set_way(OP_DCCISW); + dcache_foreach(OP_DCCISW); } void dcache_invalidate_all(void) { - dcache_op_set_way(OP_DCISW); + dcache_foreach(OP_DCISW); } static unsigned int line_bytes(void) |