diff options
Diffstat (limited to 'stand/i386/boot0/Makefile')
-rw-r--r-- | stand/i386/boot0/Makefile | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/stand/i386/boot0/Makefile b/stand/i386/boot0/Makefile new file mode 100644 index 0000000000000..39c0072e66386 --- /dev/null +++ b/stand/i386/boot0/Makefile @@ -0,0 +1,80 @@ +# $FreeBSD$ + +PROG?= boot0 +STRIP= +BINMODE=${NOBINMODE} +MAN= +SRCS= ${PROG}.S + +# Additional options that you can specify with make OPTS="..." +# (these only apply to boot0.S) +# +# -DVOLUME_SERIAL support volume serial number (NT, XP, Vista) +# -DSIO do I/O using COM1: +# -DPXE fallback to INT18/PXE with F6 +# -DCHECK_DRIVE enable checking drive number +# -DONLY_F_KEYS accept only Fx keys in console +# -DTEST print drive number on entry +# +OPTS ?= -DVOLUME_SERIAL -DPXE +CFLAGS += ${OPTS} + +# Flags used in the boot0.S code: +# 0x0f all valid partitions enabled. +# 0x80 'packet', use BIOS EDD (LBA) extensions instead of CHS +# to read from disk. boot0.S does not check that the extensions +# are supported, but all modern BIOSes should have them. +# 0x40 'noupdate', disable writing boot0 back to disk so that +# the current selection is not preserved across reboots. +# 0x20 'setdrv', override the drive number supplied by the bios +# with the one in the boot sector. + +# Default boot flags: +BOOT_BOOT0_FLAGS?= 0x8f + +# The number of timer ticks to wait for a keypress before assuming the default +# selection. Since there are 18.2 ticks per second, the default value of +# 0xb6 (182d) corresponds to 10 seconds. +BOOT_BOOT0_TICKS?= 0xb6 + +# The base address that we the boot0 code to to run it. Don't change this +# unless you are glutton for punishment. +BOOT_BOOT0_ORG?= 0x600 +ORG=${BOOT_BOOT0_ORG} + +# Comm settings for boot0sio. +# Bit(s) Description +# 7-5 data rate (110,150,300,600,1200,2400,4800,9600 bps) +# 4-3 parity (00 or 10 = none, 01 = odd, 11 = even) +# 2 stop bits (set = 2, clear = 1) +# 1-0 data bits (00 = 5, 01 = 6, 10 = 7, 11 = 8) +.if !defined(BOOT_BOOT0_COMCONSOLE_SPEED) +BOOT_COMCONSOLE_SPEED?= 9600 +.if ${BOOT_COMCONSOLE_SPEED} == 9600 +BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 4800 +BOOT_BOOT0_COMCONSOLE_SPEED= "6 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 2400 +BOOT_BOOT0_COMCONSOLE_SPEED= "5 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 1200 +BOOT_BOOT0_COMCONSOLE_SPEED= "4 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 600 +BOOT_BOOT0_COMCONSOLE_SPEED= "3 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 300 +BOOT_BOOT0_COMCONSOLE_SPEED= "2 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 150 +BOOT_BOOT0_COMCONSOLE_SPEED= "1 << 5 + 3" +.elif ${BOOT_COMCONSOLE_SPEED} == 110 +BOOT_BOOT0_COMCONSOLE_SPEED= "0 << 5 + 3" +.else +BOOT_BOOT0_COMCONSOLE_SPEED= "7 << 5 + 3" +.endif +.endif + +CFLAGS+=-DFLAGS=${BOOT_BOOT0_FLAGS} \ + -DTICKS=${BOOT_BOOT0_TICKS} \ + -DCOMSPEED=${BOOT_BOOT0_COMCONSOLE_SPEED} + +LDFLAGS+=${LDFLAGS_BIN} + +.include <bsd.prog.mk> |