spl: add option to disable SPL banner output

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>

diff --git a/common/spl/Kconfig b/common/spl/Kconfig
index e1b91f5d895c30a55642a6cddf2ef5520e081d23..65b3aff2448755ade9b822241e026a01f723086b 100644 (file)
--- a/common/spl/Kconfig
+++ b/common/spl/Kconfig
@@ -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

diff --git a/common/spl/spl.c b/common/spl/spl.c
index 1566acdbc30672eb4a8efe476d21bd6e0ae7ea85..2ebab8f0c28a41d6df6120b3f91841f9f2aa991b 100644 (file)
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -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