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Allow displaying the U-Boot banner on a video display

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At present the U-Boot banner is only displayed on the serial console. If
this is not visible to the user, the banner does not show. Some devices
have a video display which can usefully display this information.

Add a banner which is printed after relocation only on non-serial devices
if CONFIG_DISPLAY_BOARDINFO_LATE is defined.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
This commit is contained in:
Simon Glass
2017-06-15 21:37:50 -06:00
parent 6c519f2dc4
commit b0895384be
3 changed files with 26 additions and 4 deletions
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12
include/console.h
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@@ -42,6 +42,18 @@ void console_record_reset(void);
*/
void console_record_reset_enable(void);
/**
* console_announce_r() - print a U-Boot console on non-serial consoles
*
* When U-Boot starts up with a display it generally does not announce itself
* on the display. The banner is instead emitted on the UART before relocation.
* This function prints a banner on devices which (we assume) did not receive
* it before relocation.
*
* @return 0 (meaning no errors)
*/
int console_announce_r(void);
/*
* CONSOLE multiplexing.
*/