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spl: add option to disable SPL banner output

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Selecting this option will reduce SPL boot time by approx. 6 ms
(e. g. with 70 bytes long banner string at 115200 baud).

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Tested-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
This commit is contained in:
Anatolij Gustschin 2018-01-25 18:45:22 +01:00 • committed by Tom Rini
parent 9821636b64
commit 0292bc0d13
2 changed files with 9 additions and 0 deletions
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7
common/spl/Kconfig
View file

@ -118,6 +118,13 @@ config SPL_SEPARATE_BSS
location is used. Normally we put the device tree at the end of BSS
but with this option enabled, it goes at _image_binary_end.
config SPL_DISABLE_BANNER_PRINT
bool "Disable output of the SPL banner 'U-Boot SPL ...'"
help
If this option is enabled, SPL will not print the banner with version
info. Selecting this option could be useful to reduce SPL boot time
(e.g. approx. 6 ms slower, when output on i.MX6 with 115200 baud).
config SPL_DISPLAY_PRINT
bool "Display a board-specific message in SPL"
help

2
common/spl/spl.c
View file

@ -477,8 +477,10 @@ void preloader_console_init(void)
gd->have_console = 1;
#ifndef CONFIG_SPL_DISABLE_BANNER_PRINT
puts("\nU-Boot SPL " PLAIN_VERSION " (" U_BOOT_DATE " - " \
U_BOOT_TIME ")\n");
#endif
#ifdef CONFIG_SPL_DISPLAY_PRINT
spl_display_print();
#endif