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 sjg@chromium.org Reviewed-by: Bin Meng bmeng.cn@gmail.com ---
(no changes since v1)
cmd/bdinfo.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+)
diff --git a/cmd/bdinfo.c b/cmd/bdinfo.c index a864f01525fe..1fe13ca13a0a 100644 --- a/cmd/bdinfo.c +++ b/cmd/bdinfo.c @@ -13,6 +13,7 @@ #include <lmb.h> #include <mapmem.h> #include <net.h> +#include <serial.h> #include <video.h> #include <vsprintf.h> #include <asm/cache.h> @@ -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);
if (IS_ENABLED(CONFIG_CMD_BDINFO_EXTRA)) { bdinfo_print_num_ll("stack ptr", (ulong)&bd);