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7f505e7f79
freebsd-dev/stand
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Toomas Soome 7f505e7f79 test if port does exist via using scratch register 
The SCR, scratch register was not present on the 8250 and 8250B UART, so we
can use to test if we actually do have serial port.

We need this test because some systems will get long delays while attempting
to write to non-existing port and this will slow down the console IO
to extreme.

MFC after:	1 week
2020-03-12 06:45:08 +00:00
..
arm Remove NAND and NANDFS support 2019-06-25 04:50:09 +00:00
arm64
common veloader use vectx API for kernel and modules 2020-03-08 18:48:01 +00:00
defaults Enable lualoader's kernel autodetection, disabled on install media 2018-10-11 17:17:54 +00:00
efi veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
fdt stand/fdt: Scale blob size better as overlays apply 2020-01-09 04:34:42 +00:00
ficl veloader use vectx API for kernel and modules 2020-03-09 16:02:54 +00:00
ficl32 Enable veriexec for loader 2019-02-26 06:22:10 +00:00
forth loader_4th: menu items need to reset color attribute, not switch to white 2019-09-22 16:10:25 +00:00
i386 test if port does exist via using scratch register 2020-03-12 06:45:08 +00:00
kshim
liblua veloader use vectx API for kernel and modules 2020-03-09 15:48:53 +00:00
liblua32
libofw veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
libsa loader: replace zfs_alloc/zfs_free with malloc/free 2020-02-26 18:12:12 +00:00
libsa32 Enable veriexec for loader 2019-02-26 06:22:10 +00:00
lua lua: add modules.loaded hook 2020-01-25 03:52:16 +00:00
man Remove sparc64 support from the boot loader. 2020-02-03 17:34:57 +00:00
mips veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
powerpc veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
uboot veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
usb Fix build of stand/usb . 2020-01-23 10:40:34 +00:00
userboot veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
defs.mk Move stand/ofw/libofw to stand/libofw. 2020-01-02 04:34:22 +00:00
fdt.mk
ficl.mk ficl pfopen: verify file 2019-05-24 19:43:38 +00:00
loader.mk veloader use vectx API for kernel and modules 2020-03-08 17:42:42 +00:00
lua.mk
Makefile Move stand/ofw/libofw to stand/libofw. 2020-01-02 04:34:22 +00:00
Makefile.amd64
Makefile.inc
uboot.mk