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bdinfo: Show information about the serial port

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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>
[bmeng: squashed in 20230716033929.253357-2-sjg@chromium.org]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
This commit is contained in:
Simon Glass 2023-07-12 09:04:37 -06:00 committed by Bin Meng
parent 43b6fa9c14
commit 347a845aec
2 changed files with 35 additions and 0 deletions
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21
cmd/bdinfo.c
View File

@ -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);
arch_print_bdinfo();

14
test/cmd/bdinfo.c
View File

@ -16,6 +16,7 @@
#include <env.h>
#include <lmb.h>
#include <net.h>
#include <serial.h>
#include <video.h>
#include <vsprintf.h>
#include <asm/cache.h>
@ -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;