Scrolling a line at a time is very slow for reasons that I don't understand.
It seems to take about 100ms to copy 4MB of RAM in the frame buffer. To cope
with this, scroll 5 lines each time.
Signed-off-by: Simon Glass <sjg@chromium.org>
#define VIDEO_FB_16BPP_WORD_SWAP
#define CONFIG_I8042_KBD
#define CONFIG_CFB_CONSOLE
+#define CONFIG_CONSOLE_SCROLL_LINES 5
/*-----------------------------------------------------------------------
* CPU Features