In a lot of cases kernel resets UART HW. To ensure that U-Boot messages printed before booting the kernel are not lost, call new U-Boot console flush() function.
Signed-off-by: Pali Rohár pali@kernel.org --- Changes in v3: * Fix commit message --- boot/bootm_os.c | 1 + cmd/boot.c | 1 + cmd/elf.c | 2 ++ 3 files changed, 4 insertions(+)
diff --git a/boot/bootm_os.c b/boot/bootm_os.c index f31820cd07ef..079224ce585b 100644 --- a/boot/bootm_os.c +++ b/boot/bootm_os.c @@ -303,6 +303,7 @@ static void do_bootvx_fdt(bootm_headers_t *images) #else printf("## Starting vxWorks at 0x%08lx\n", (ulong)images->ep); #endif + flush();
boot_jump_vxworks(images);
diff --git a/cmd/boot.c b/cmd/boot.c index be67a5980de3..14839c1cedcc 100644 --- a/cmd/boot.c +++ b/cmd/boot.c @@ -32,6 +32,7 @@ static int do_go(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) addr = hextoul(argv[1], NULL);
printf ("## Starting application at 0x%08lX ...\n", addr); + flush();
/* * pass address parameter as argv[0] (aka command name), diff --git a/cmd/elf.c b/cmd/elf.c index ce40d3f72a7c..b7b9f506a526 100644 --- a/cmd/elf.c +++ b/cmd/elf.c @@ -72,6 +72,7 @@ int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) return rcode;
printf("## Starting application at 0x%08lx ...\n", addr); + flush();
/* * pass address parameter as argv[0] (aka command name), @@ -274,6 +275,7 @@ int do_bootvx(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) puts("## Not an ELF image, assuming binary\n");
printf("## Starting vxWorks at 0x%08lx ...\n", addr); + flush();
dcache_disable(); #if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)