The code and comment disagreed: the comment claimed that r6...r31 were copied, and consequently the arrays for "src" and "dst" were declared with 26 entries, but the actual code ("lmw r5,0(r3)" and "stmw r5,0(r4)") copied _27_ words (r5 through r31), which resulted in false "POST cpu Error at multi test" messages.
Fix the comment and the array sizes.
Signed-off-by: Wolfgang Denk wd@denx.de Cc: Anatolij Gustschin agust@denx.de Cc: Stefan Roese sr@denx.de Cc: Kumar Gala galak@kernel.crashing.org Cc: Kim Phillips kim.phillips@freescale.com Cc: Andy Fleming afleming@gmail.com --- post/lib_powerpc/multi.c | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/post/lib_powerpc/multi.c b/post/lib_powerpc/multi.c index b8619de..6642ee3 100644 --- a/post/lib_powerpc/multi.c +++ b/post/lib_powerpc/multi.c @@ -27,9 +27,9 @@ * CPU test * Load/store multiple word instructions: lmw, stmw * - * 26 consecutive words are loaded from a source memory buffer - * into GPRs r6 through r31. After that, 26 consecutive words are stored - * from the GPRs r6 through r31 into a target memory buffer. The contents + * 27 consecutive words are loaded from a source memory buffer + * into GPRs r5 through r31. After that, 27 consecutive words are stored + * from the GPRs r5 through r31 into a target memory buffer. The contents * of the source and target buffers are then compared. */
@@ -44,7 +44,7 @@ int cpu_post_test_multi(void) { int ret = 0; unsigned int i; - ulong src[26], dst[26]; + ulong src[27], dst[27]; int flag = disable_interrupts();
ulong code[] = {