From 347a845aec18561d36299b0735c47c2b3f45bc71 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Wed, 12 Jul 2023 09:04:37 -0600 Subject: [PATCH] bdinfo: Show information about the serial port It is useful to see the detailed setting of the serial port, e.g. to allow setting up earlycon or console for Linux. Add this output to the 'bdinfo' command. Signed-off-by: Simon Glass Reviewed-by: Bin Meng [bmeng: squashed in 20230716033929.253357-2-sjg@chromium.org] Signed-off-by: Bin Meng --- cmd/bdinfo.c | 21 +++++++++++++++++++++ test/cmd/bdinfo.c | 14 ++++++++++++++ 2 files changed, 35 insertions(+) diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c index 365357ca54..dab73f1d93 100644 --- a/cmd/bdinfo.c +++ b/cmd/bdinfo.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include #include @@ -113,6 +114,25 @@ static void show_video_info(void) } } +static void print_serial(struct udevice *dev) +{ + struct serial_device_info info; + int ret; + + if (!dev || !IS_ENABLED(CONFIG_DM_SERIAL)) + return; + + ret = serial_getinfo(dev, &info); + if (ret) + return; + + bdinfo_print_num_l("serial addr", info.addr); + bdinfo_print_num_l(" width", info.reg_width); + bdinfo_print_num_l(" shift", info.reg_shift); + bdinfo_print_num_l(" offset", info.reg_offset); + bdinfo_print_num_l(" clock", info.clock); +} + int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) { struct bd_info *bd = gd->bd; @@ -151,6 +171,7 @@ int do_bdinfo(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) if (IS_ENABLED(CONFIG_OF_REAL)) printf("devicetree = %s\n", fdtdec_get_srcname()); } + print_serial(gd->cur_serial_dev); arch_print_bdinfo(); diff --git a/test/cmd/bdinfo.c b/test/cmd/bdinfo.c index cddf1a46d4..6480393fd5 100644 --- a/test/cmd/bdinfo.c +++ b/test/cmd/bdinfo.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include #include @@ -191,6 +192,19 @@ static int bdinfo_test_move(struct unit_test_state *uts) ut_assert_nextline("devicetree = %s", fdtdec_get_srcname()); } + if (IS_ENABLED(CONFIG_DM_SERIAL)) { + struct serial_device_info info; + + ut_assertnonnull(gd->cur_serial_dev); + ut_assertok(serial_getinfo(gd->cur_serial_dev, &info)); + + ut_assertok(test_num_l(uts, "serial addr", info.addr)); + ut_assertok(test_num_l(uts, " width", info.reg_width)); + ut_assertok(test_num_l(uts, " shift", info.reg_shift)); + ut_assertok(test_num_l(uts, " offset", info.reg_offset)); + ut_assertok(test_num_l(uts, " clock", info.clock)); + } + ut_assertok(ut_check_console_end(uts)); return 0; -- 2.39.5