From 4babc41c7fef3331588c84b1fb99b4c6f6112997 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 9 Dec 2014 12:44:25 +0100 Subject: ARM: uncompress.c: Add some debugging messages Now that we have printf support in the PBL we can use it right after setup_c(). Add some debug messages to the early PBL code to make it more clear what is happening there. Signed-off-by: Sascha Hauer --- arch/arm/cpu/uncompress.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/arm/cpu/uncompress.c b/arch/arm/cpu/uncompress.c index d64706d217..03c73d56a3 100644 --- a/arch/arm/cpu/uncompress.c +++ b/arch/arm/cpu/uncompress.c @@ -17,6 +17,7 @@ * GNU General Public License for more details. * */ +#define pr_fmt(fmt) "uncompress.c: " fmt #include #include @@ -76,9 +77,12 @@ static void __noreturn noinline uncompress_start_payload(unsigned long membase, setup_c(); + pr_debug("memory at 0x%08lx, size 0x%08lx\n", membase, memsize); + if (IS_ENABLED(CONFIG_MMU_EARLY)) { endmem &= ~0x3fff; endmem -= SZ_16K; /* ttb */ + pr_debug("enabling MMU, ttb @ 0x%08x\n", endmem); mmu_early_enable(membase, memsize, endmem); } @@ -93,6 +97,9 @@ static void __noreturn noinline uncompress_start_payload(unsigned long membase, pg_start = image_end + 1; pg_len = *(image_end); + pr_debug("uncompressing barebox binary at 0x%p (size 0x%08x) to 0x%08lx\n", + pg_start, pg_len, barebox_base); + pbl_barebox_uncompress((void*)barebox_base, pg_start, pg_len); arm_early_mmu_cache_flush(); @@ -103,6 +110,8 @@ static void __noreturn noinline uncompress_start_payload(unsigned long membase, else barebox = (void *)barebox_base; + pr_debug("jumping to uncompressed image at 0x%p\n", barebox); + barebox(membase, memsize, boarddata); } -- cgit v1.2.3