David Hendricks (dhendrix@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/2945
-gerrit
commit ff402334d6d77559dbb450125f12d7cc77b9a683 Author: David Hendricks dhendrix@chromium.org Date: Thu Mar 28 18:26:03 2013 -0700
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 --- src/arch/armv7/lib/cache.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/src/arch/armv7/lib/cache.c b/src/arch/armv7/lib/cache.c index 8709daf..da03a81 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)