From ff66e7bb73233a4decfcdb66b7a858399dbccf50 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Thu, 16 Dec 2021 20:59:34 -0700 Subject: fdt: Report the devicetree source It can be confusing to figure out where the devicetree came from. It seems important enough to warrant a message during boot. Add information about the number of devices and uclasses too since it is helpful to have some idea what is going on with driver model. Report the devicetree source in bdinfo too. This looks something like this, with > marking the new line. U-Boot 2021.10-00190 (Oct 30 2021 - 09:01:29 -0600) DRAM: 128 MiB > Core: 42 devices, 11 uclasses, devicetree: passage Flash: 64 MiB Signed-off-by: Simon Glass --- common/board_r.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'common/board_r.c') diff --git a/common/board_r.c b/common/board_r.c index 31a59c585a8..99adff14b39 100644 --- a/common/board_r.c +++ b/common/board_r.c @@ -586,6 +586,23 @@ int initr_mem(void) } #endif +static int dm_announce(void) +{ + int device_count; + int uclass_count; + + if (IS_ENABLED(CONFIG_DM)) { + dm_get_stats(&device_count, &uclass_count); + printf("Core: %d devices, %d uclasses", device_count, + uclass_count); + if (CONFIG_IS_ENABLED(OF_REAL)) + printf(", devicetree: %s", fdtdec_get_srcname()); + printf("\n"); + } + + return 0; +} + static int run_main_loop(void) { #ifdef CONFIG_SANDBOX @@ -661,6 +678,7 @@ static init_fnc_t init_sequence_r[] = { stdio_init_tables, serial_initialize, initr_announce, + dm_announce, #if CONFIG_IS_ENABLED(WDT) initr_watchdog, #endif -- cgit v1.2.3