U-Boot supports using TrueType fonts on the console, which is useful for presenting a nice UI to users, e.g. for system recovery.
Add information about how to compile this on ARM platforms, since this is not obvious.
Signed-off-by: Simon Glass sjg@chromium.org ---
doc/README.video | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/doc/README.video b/doc/README.video index 09a26b17936..7a30512c96d 100644 --- a/doc/README.video +++ b/doc/README.video @@ -75,3 +75,23 @@ The sunxi U-Boot driver supports the following video-mode options: For example to always use the hdmi connector, even if no cable is inserted, using edid info when available and otherwise initalizing it at 1024x768@60Hz, use: "setenv video-mode sunxi:1024x768-24@60,monitor=dvi,hpd=0,edid=1". + + +TrueType fonts +-------------- + +U-Boot supports the use of antialiased TrueType fonts on some platforms. This +has been tested in x86, ARMv7 and sandbox. + +To enable this, select CONFIG_CONSOLE_TRUETYPE. You can choose between several +fonts, with CONSOLE_TRUETYPE_NIMBUS being the default. + +TrueType supports requires floating point at present. On ARMv7 platforms you +need to disable use of the private libgcc. You can do this by disabling +CONFIG_USE_PRIVATE_LIBGCC. See chromebook_jerry for an example. Note that this +increases U-Boot's size by about 70KB at present. + +On ARM you should also make sure your toolchain supports hardfp. This is +normally given in the name of your toolchain, e.g. arm-linux-gnueabihf (hf +means hardware floating point). You can also run gcc with -v to see if it has +this option.